Question: What is Note:?

Answer: Y o u   s h o u l d   a v o i d   u s i n g   t h e   : l a t e s t   t a g   w h e n   d e p l o y i n g   c o n t a i n e r s   i n   p r o d u c t i o n   a s   i t   i s   h a r d e r   t o   t r a c k   w h i c h   v e r s i o n   o f   t h e   i m a g e   i s   r u n n i n g   a n d   m o r e   d i f f i c u l t   t o   r o l l   b a c k   p r o p e r l y .   I n s t e a d ,   s p e c i f y   a   m e a n i n g f u l   t a g   s u c h   a s   v 1 . 4 2 . 0   a n d / o r   a   d i g e s t .   T o   m a k e   s u r e   t h e   P o d   a l w a y s   u s e s   t h e   s a m e   v e r s i o n   o f   a   c o n t a i n e r   i m a g e ,   y o u   c a n   s p e c i f y   t h e   i m a g e ' s   d i g e s t ;   r e p l a c e   < i m a g e - n a m e > : < t a g >   w i t h   < i m a g e - n a m e > @ < d i g e s t >   ( f o r   e x a m p l e ,   i m a g e @ s h a 2 5 6 : 4 5 b 2 3 d e e 0 8 a f 5 e 4 3 a 7 f e a 6 c 4 c f 9 c 2 5 c c f 2 6 9 e e 1 1 3 1 6 8 c 1 9 7 2 2 f 8 7 8 7 6 6 7 7 c 5 c b 2 ) .   W h e n   u s i n g   i m a g e   t a g s ,   i f   t h e   i m a g e   r e g i s t r y   w e r e   t o   c h a n g e   t h e   c o d e   t h a t   t h e   t a g   o n   t h a t   i m a g e   r e p r e s e n t s ,   y o u   m i g h t   e n d   u p   w i t h   a   m i x   o f   P o d s   r u n n i n g   t h e   o l d   a n d   n e w   c o d e .   A n   i m a g e   d i g e s t   u n i q u e l y   i d e n t i f i e s   a   s p e c i f i c   v e r s i o n   o f   t h e   i m a g e ,   s o   K u b e r n e t e s   r u n s   t h e   s a m e   c o d e   e v e r y   t i m e   i t   s t a r t s   a   c o n t a i n e r   w i t h   t h a t   i m a g e   n a m e   a n d   d i g e s t   s p e c i f i e d .   S p e c i f y i n g   a n   i m a g e   b y   d i g e s t   p i n s   t h e   c o d e   t h a t   y o u   r u n   s o   t h a t   a   c h a n g e   a t   t h e   r e g i s t r y   c a n n o t   l e a d   t o   t h a t   m i x   o f   v e r s i o n s .   T h e r e   a r e   t h i r


Question: What is Default image pull policy?

Answer: W h e n   y o u   ( o r   a   c o n t r o l l e r )   s u b m i t   a   n e w   P o d   t o   t h e   A P I   s e r v e r ,   y o u r   c l u s t e r   s e t s   t h e   i m a g e P u l l P o l i c y   f i e l d   w h e n   s p e c i f i c   c o n d i t i o n s   a r e   m e t :   i f   y o u   o m i t   t h e   i m a g e P u l l P o l i c y   f i e l d ,   a n d   y o u   s p e c i f y   t h e   d i g e s t   f o r   t h e   c o n t a i n e r   i m a g e ,   t h e   i m a g e P u l l P o l i c y   i s   a u t o m a t i c a l l y   s e t   t o   I f N o t P r e s e n t . i f   y o u   o m i t   t h e   i m a g e P u l l P o l i c y   f i e l d ,   a n d   t h e   t a g   f o r   t h e   c o n t a i n e r   i m a g e   i s   : l a t e s t ,   i m a g e P u l l P o l i c y   i s   a u t o m a t i c a l l y   s e t   t o   A l w a y s . i f   y o u   o m i t   t h e   i m a g e P u l l P o l i c y   f i e l d ,   a n d   y o u   d o n ' t   s p e c i f y   t h e   t a g   f o r   t h e   c o n t a i n e r   i m a g e ,   i m a g e P u l l P o l i c y   i s   a u t o m a t i c a l l y   s e t   t o   A l w a y s . i f   y o u   o m i t   t h e   i m a g e P u l l P o l i c y   f i e l d ,   a n d   y o u   s p e c i f y   a   t a g   f o r   t h e   c o n t a i n e r   i m a g e   t h a t   i s n ' t   : l a t e s t ,   t h e   i m a g e P u l l P o l i c y   i s   a u t o m a t i c a l l y   s e t   t o   I f N o t P r e s e n t .


Question: What is Note:?

Answer: T h e   v a l u e   o f   i m a g e P u l l P o l i c y   o f   t h e   c o n t a i n e r   i s   a l w a y s   s e t   w h e n   t h e   o b j e c t   i s   f i r s t   c r e a t e d ,   a n d   i s   n o t   u p d a t e d   i f   t h e   i m a g e ' s   t a g   o r   d i g e s t   l a t e r   c h a n g e s .   F o r   e x a m p l e ,   i f   y o u   c r e a t e   a   D e p l o y m e n t   w i t h   a n   i m a g e   w h o s e   t a g   i s   n o t   : l a t e s t ,   a n d   l a t e r   u p d a t e   t h a t   D e p l o y m e n t ' s   i m a g e   t o   a   : l a t e s t   t a g ,   t h e   i m a g e P u l l P o l i c y   f i e l d   w i l l   n o t   c h a n g e   t o   A l w a y s .   Y o u   m u s t   m a n u a l l y   c h a n g e   t h e   p u l l   p o l i c y   o f   a n y   o b j e c t   a f t e r   i t s   i n i t i a l   c r e a t i o n .


Question: What is Required image pull?

Answer: I f   y o u   w o u l d   l i k e   t o   a l w a y s   f o r c e   a   p u l l ,   y o u   c a n   d o   o n e   o f   t h e   f o l l o w i n g :   S e t   t h e   i m a g e P u l l P o l i c y   o f   t h e   c o n t a i n e r   t o   A l w a y s . O m i t   t h e   i m a g e P u l l P o l i c y   a n d   u s e   : l a t e s t   a s   t h e   t a g   f o r   t h e   i m a g e   t o   u s e ;   K u b e r n e t e s   w i l l   s e t   t h e   p o l i c y   t o   A l w a y s   w h e n   y o u   s u b m i t   t h e   P o d . O m i t   t h e   i m a g e P u l l P o l i c y   a n d   t h e   t a g   f o r   t h e   i m a g e   t o   u s e ;   K u b e r n e t e s   w i l l   s e t   t h e   p o l i c y   t o   A l w a y s   w h e n   y o u   s u b m i t   t h e   P o d . E n a b l e   t h e   A l w a y s P u l l I m a g e s   a d m i s s i o n   c o n t r o l l e r .


Question: What is ImagePullBackOff?

Answer: W h e n   a   k u b e l e t   s t a r t s   c r e a t i n g   c o n t a i n e r s   f o r   a   P o d   u s i n g   a   c o n t a i n e r   r u n t i m e ,   i t   m i g h t   b e   p o s s i b l e   t h e   c o n t a i n e r   i s   i n   W a i t i n g   s t a t e   b e c a u s e   o f   I m a g e P u l l B a c k O f f .   T h e   s t a t u s   I m a g e P u l l B a c k O f f   m e a n s   t h a t   a   c o n t a i n e r   c o u l d   n o t   s t a r t   b e c a u s e   K u b e r n e t e s   c o u l d   n o t   p u l l   a   c o n t a i n e r   i m a g e   ( f o r   r e a s o n s   s u c h   a s   i n v a l i d   i m a g e   n a m e ,   o r   p u l l i n g   f r o m   a   p r i v a t e   r e g i s t r y   w i t h o u t   i m a g e P u l l S e c r e t ) .   T h e   B a c k O f f   p a r t   i n d i c a t e s   t h a t   K u b e r n e t e s   w i l l   k e e p   t r y i n g   t o   p u l l   t h e   i m a g e ,   w i t h   a n   i n c r e a s i n g   b a c k - o f f   d e l a y .   K u b e r n e t e s   r a i s e s   t h e   d e l a y   b e t w e e n   e a c h   a t t e m p t   u n t i l   i t   r e a c h e s   a   c o m p i l e d - i n   l i m i t ,   w h i c h   i s   3 0 0   s e c o n d s   ( 5   m i n u t e s ) .


Question: What is Image pull per runtime class?

Answer: F E A T U R E   S T A T E :   K u b e r n e t e s   v 1 . 2 9   [ a l p h a ]   ( e n a b l e d   b y   d e f a u l t :   f a l s e ) K u b e r n e t e s   i n c l u d e s   a l p h a   s u p p o r t   f o r   p e r f o r m i n g   i m a g e   p u l l s   b a s e d   o n   t h e   R u n t i m e C l a s s   o f   a   P o d .   I f   y o u   e n a b l e   t h e   R u n t i m e C l a s s I n I m a g e C r i A p i   f e a t u r e   g a t e ,   t h e   k u b e l e t   r e f e r e n c e s   c o n t a i n e r   i m a g e s   b y   a   t u p l e   o f   i m a g e   n a m e   a n d   r u n t i m e   h a n d l e r   r a t h e r   t h a n   j u s t   t h e   i m a g e   n a m e   o r   d i g e s t .   Y o u r   c o n t a i n e r   r u n t i m e   m a y   a d a p t   i t s   b e h a v i o r   b a s e d   o n   t h e   s e l e c t e d   r u n t i m e   h a n d l e r .   P u l l i n g   i m a g e s   b a s e d   o n   r u n t i m e   c l a s s   i s   u s e f u l   f o r   V M - b a s e d   c o n t a i n e r s ,   s u c h   a s   W i n d o w s   H y p e r - V   c o n t a i n e r s .


Question: What is Serial and parallel image pulls?

Answer: B y   d e f a u l t ,   t h e   k u b e l e t   p u l l s   i m a g e s   s e r i a l l y .   I n   o t h e r   w o r d s ,   t h e   k u b e l e t   s e n d s   o n l y   o n e   i m a g e   p u l l   r e q u e s t   t o   t h e   i m a g e   s e r v i c e   a t   a   t i m e .   O t h e r   i m a g e   p u l l   r e q u e s t s   h a v e   t o   w a i t   u n t i l   t h e   o n e   b e i n g   p r o c e s s e d   i s   c o m p l e t e .   N o d e s   m a k e   i m a g e   p u l l   d e c i s i o n s   i n   i s o l a t i o n .   E v e n   w h e n   y o u   u s e   s e r i a l i z e d   i m a g e   p u l l s ,   t w o   d i f f e r e n t   n o d e s   c a n   p u l l   t h e   s a m e   i m a g e   i n   p a r a l l e l .   I f   y o u   w o u l d   l i k e   t o   e n a b l e   p a r a l l e l   i m a g e   p u l l s ,   y o u   c a n   s e t   t h e   f i e l d   s e r i a l i z e I m a g e P u l l s   t o   f a l s e   i n   t h e   k u b e l e t   c o n f i g u r a t i o n .   W i t h   s e r i a l i z e I m a g e P u l l s   s e t   t o   f a l s e ,   i m a g e   p u l l   r e q u e s t s   w i l l   b e   s e n t   t o   t h e   i m a g e   s e r v i c e   i m m e d i a t e l y ,   a n d   m u l t i p l e   i m a g e s   w i l l   b e   p u l l e d   a t   t h e   s a m e   t i m e .   W h e n   e n a b l i n g   p a r a l l e l   i m a g e   p u l l s ,   e n s u r e   t h a t   t h e   i m a g e   s e r v i c e   o f   y o u r   c o n t a i n e r   r u n t i m e   c a n   h a n d l e   p a r a l l e l   i m a g e   p u l l s .   T h e   k u b e l e t   n e v e r   p u l l s   m u l t i p l e   i m a g e s   i n   p a r a l l e l   o n   b e h a l f   o f   o n e   P o d .   F o r   e x a m p l e ,   i f   y o u   h a v e   a   P o d   t h a t   h a s   a n   i n i t   c o n t a i n e r   a n d   a n   a p p l i c a t i o n   c o n t a i n e r ,   t h e   i m a g e   p u l l s   f o r   t h e   t w o   c o n t a i n e r s   w i l l   n o t   b e   p a r a


Question: What is Maximum parallel image pulls?

Answer: W h e n   s e r i a l i z e I m a g e P u l l s   i s   s e t   t o   f a l s e ,   t h e   k u b e l e t   d e f a u l t s   t o   n o   l i m i t   o n   t h e   m a x i m u m   n u m b e r   o f   i m a g e s   b e i n g   p u l l e d   a t   t h e   s a m e   t i m e .   I f   y o u   w o u l d   l i k e   t o   l i m i t   t h e   n u m b e r   o f   p a r a l l e l   i m a g e   p u l l s ,   y o u   c a n   s e t   t h e   f i e l d   m a x P a r a l l e l I m a g e P u l l s   i n   t h e   k u b e l e t   c o n f i g u r a t i o n .   W i t h   m a x P a r a l l e l I m a g e P u l l s   s e t   t o   n ,   o n l y   n   i m a g e s   c a n   b e   p u l l e d   a t   t h e   s a m e   t i m e ,   a n d   a n y   i m a g e   p u l l   b e y o n d   n   w i l l   h a v e   t o   w a i t   u n t i l   a t   l e a s t   o n e   o n g o i n g   i m a g e   p u l l   i s   c o m p l e t e .   L i m i t i n g   t h e   n u m b e r   o f   p a r a l l e l   i m a g e   p u l l s   p r e v e n t s   i m a g e   p u l l i n g   f r o m   c o n s u m i n g   t o o   m u c h   n e t w o r k   b a n d w i d t h   o r   d i s k   I / O ,   w h e n   p a r a l l e l   i m a g e   p u l l i n g   i s   e n a b l e d .   Y o u   c a n   s e t   m a x P a r a l l e l I m a g e P u l l s   t o   a   p o s i t i v e   n u m b e r   t h a t   i s   g r e a t e r   t h a n   o r   e q u a l   t o   1 .   I f   y o u   s e t   m a x P a r a l l e l I m a g e P u l l s   t o   b e   g r e a t e r   t h a n   o r   e q u a l   t o   2 ,   y o u   m u s t   s e t   s e r i a l i z e I m a g e P u l l s   t o   f a l s e .   T h e   k u b e l e t   w i l l   f a i l   t o   s t a r t   w i t h   a n   i n v a l i d   m a x P a r a l l e l I m a g e P u l l s   s e t t i n g .


Question: What is Multi-architecture images with image indexes?

Answer: A s   w e l l   a s   p r o v i d i n g   b i n a r y   i m a g e s ,   a   c o n t a i n e r   r e g i s t r y   c a n   a l s o   s e r v e   a   c o n t a i n e r   i m a g e   i n d e x .   A n   i m a g e   i n d e x   c a n   p o i n t   t o   m u l t i p l e   i m a g e   m a n i f e s t s   f o r   a r c h i t e c t u r e - s p e c i f i c   v e r s i o n s   o f   a   c o n t a i n e r .   T h e   i d e a   i s   t h a t   y o u   c a n   h a v e   a   n a m e   f o r   a n   i m a g e   ( f o r   e x a m p l e :   p a u s e ,   e x a m p l e / m y c o n t a i n e r ,   k u b e - a p i s e r v e r )   a n d   a l l o w   d i f f e r e n t   s y s t e m s   t o   f e t c h   t h e   r i g h t   b i n a r y   i m a g e   f o r   t h e   m a c h i n e   a r c h i t e c t u r e   t h e y   a r e   u s i n g .   T h e   K u b e r n e t e s   p r o j e c t   t y p i c a l l y   c r e a t e s   c o n t a i n e r   i m a g e s   f o r   i t s   r e l e a s e s   w i t h   n a m e s   t h a t   i n c l u d e   t h e   s u f f i x   - $ ( A R C H ) .   F o r   b a c k w a r d   c o m p a t i b i l i t y ,   g e n e r a t e   o l d e r   i m a g e s   w i t h   s u f f i x e s .   F o r   i n s t a n c e ,   a n   i m a g e   n a m e d   a s   p a u s e   w o u l d   b e   a   m u l t i - a r c h i t e c t u r e   i m a g e   c o n t a i n i n g   m a n i f e s t s   f o r   a l l   s u p p o r t e d   a r c h i t e c t u r e s ,   w h i l e   p a u s e - a m d 6 4   w o u l d   b e   a   b a c k w a r d - c o m p a t i b l e   v e r s i o n   f o r   o l d e r   c o n f i g u r a t i o n s ,   o r   f o r   Y A M L   f i l e s   w i t h   h a r d c o d e d   i m a g e   n a m e s   c o n t a i n i n g   s u f f i x e s .


Question: What is Using a private registry?

Answer: P r i v a t e   r e g i s t r i e s   m a y   r e q u i r e   a u t h e n t i c a t i o n   t o   b e   a b l e   t o   d i s c o v e r   a n d / o r   p u l l   i m a g e s   f r o m   t h e m .   C r e d e n t i a l s   c a n   b e   p r o v i d e d   i n   s e v e r a l   w a y s :   S p e c i f y i n g   i m a g e P u l l S e c r e t s   w h e n   y o u   d e f i n e   a   P o d O n l y   P o d s   w h i c h   p r o v i d e   t h e i r   o w n   k e y s   c a n   a c c e s s   t h e   p r i v a t e   r e g i s t r y . C o n f i g u r i n g   N o d e s   t o   A u t h e n t i c a t e   t o   a   P r i v a t e   R e g i s t r y A l l   P o d s   c a n   r e a d   a n y   c o n f i g u r e d   p r i v a t e   r e g i s t r i e s . R e q u i r e s   n o d e   c o n f i g u r a t i o n   b y   c l u s t e r   a d m i n i s t r a t o r . U s i n g   a   k u b e l e t   c r e d e n t i a l   p r o v i d e r   p l u g i n   t o   d y n a m i c a l l y   f e t c h   c r e d e n t i a l s   f o r   p r i v a t e   r e g i s t r i e s T h e   k u b e l e t   c a n   b e   c o n f i g u r e d   t o   u s e   c r e d e n t i a l   p r o v i d e r   e x e c   p l u g i n   f o r   t h e   r e s p e c t i v e   p r i v a t e   r e g i s t r y . P r e - p u l l e d   I m a g e s A l l   P o d s   c a n   u s e   a n y   i m a g e s   c a c h e d   o n   a   n o d e . R e q u i r e s   r o o t   a c c e s s   t o   a l l   n o d e s   t o   s e t   u p . V e n d o r - s p e c i f i c   o r   l o c a l   e x t e n s i o n s I f   y o u ' r e   u s i n g   a   c u s t o m   n o d e   c o n f i g u r a t i o n ,   y o u   ( o r   y o u r   c l o u d   p r o v i d e r )   c a n   i m p l e m e n t   y o u r   m e c h a n i s m   f o r   a u t h e n t i c a t i n g   t h e   n o d e   t o   t h e   c o n t a i n e r   r e g i s t r y .   S p e c i f y i n g   i m a g e P u l l S e c r e t s   w h e n   y o u   d e f i n e   a   P o d   O n l y   P o d s   w h i c h   p r o v i d e


Question: What is Note:?

Answer: K u b e r n e t e s   s u p p o r t s   s p e c i f y i n g   c o n t a i n e r   i m a g e   r e g i s t r y   k e y s   o n   a   P o d .   A l l   i m a g e P u l l S e c r e t s   m u s t   b e   S e c r e t s   t h a t   e x i s t   i n   t h e   s a m e   N a m e s p a c e   a s   t h e   P o d .   T h e s e   S e c r e t s   m u s t   b e   o f   t y p e   k u b e r n e t e s . i o / d o c k e r c f g   o r   k u b e r n e t e s . i o / d o c k e r c o n f i g j s o n .


Question: What is Configuring nodes to authenticate to a private registry?

Answer: S p e c i f i c   i n s t r u c t i o n s   f o r   s e t t i n g   c r e d e n t i a l s   d e p e n d s   o n   t h e   c o n t a i n e r   r u n t i m e   a n d   r e g i s t r y   y o u   c h o s e   t o   u s e .   Y o u   s h o u l d   r e f e r   t o   y o u r   s o l u t i o n ' s   d o c u m e n t a t i o n   f o r   t h e   m o s t   a c c u r a t e   i n f o r m a t i o n .   F o r   a n   e x a m p l e   o f   c o n f i g u r i n g   a   p r i v a t e   c o n t a i n e r   i m a g e   r e g i s t r y ,   s e e   t h e   P u l l   a n   I m a g e   f r o m   a   P r i v a t e   R e g i s t r y   t a s k .   T h a t   e x a m p l e   u s e s   a   p r i v a t e   r e g i s t r y   i n   D o c k e r   H u b .


Question: What is Kubelet credential provider for authenticated image pulls?

Answer: Y o u   c a n   c o n f i g u r e   t h e   k u b e l e t   t o   i n v o k e   a   p l u g i n   b i n a r y   t o   d y n a m i c a l l y   f e t c h   r e g i s t r y   c r e d e n t i a l s   f o r   a   c o n t a i n e r   i m a g e .   T h i s   i s   t h e   m o s t   r o b u s t   a n d   v e r s a t i l e   w a y   t o   f e t c h   c r e d e n t i a l s   f o r   p r i v a t e   r e g i s t r i e s ,   b u t   a l s o   r e q u i r e s   k u b e l e t - l e v e l   c o n f i g u r a t i o n   t o   e n a b l e .   T h i s   t e c h n i q u e   c a n   b e   e s p e c i a l l y   u s e f u l   f o r   r u n n i n g   s t a t i c   P o d s   t h a t   r e q u i r e   c o n t a i n e r   i m a g e s   h o s t e d   i n   a   p r i v a t e   r e g i s t r y .   U s i n g   a   S e r v i c e A c c o u n t   o r   a   S e c r e t   t o   p r o v i d e   p r i v a t e   r e g i s t r y   c r e d e n t i a l s   i s   n o t   p o s s i b l e   i n   t h e   s p e c i f i c a t i o n   o f   a   s t a t i c   P o d ,   b e c a u s e   i t   c a n n o t   h a v e   r e f e r e n c e s   t o   o t h e r   A P I   r e s o u r c e s   i n   i t s   s p e c i f i c a t i o n .   S e e   C o n f i g u r e   a   k u b e l e t   i m a g e   c r e d e n t i a l   p r o v i d e r   f o r   m o r e   d e t a i l s .


Question: What is Interpretation of config.json?

Answer: T h e   i n t e r p r e t a t i o n   o f   c o n f i g . j s o n   v a r i e s   b e t w e e n   t h e   o r i g i n a l   D o c k e r   i m p l e m e n t a t i o n   a n d   t h e   K u b e r n e t e s   i n t e r p r e t a t i o n .   I n   D o c k e r ,   t h e   a u t h s   k e y s   c a n   o n l y   s p e c i f y   r o o t   U R L s ,   w h e r e a s   K u b e r n e t e s   a l l o w s   g l o b   U R L s   a s   w e l l   a s   p r e f i x - m a t c h e d   p a t h s .   T h e   o n l y   l i m i t a t i o n   i s   t h a t   g l o b   p a t t e r n s   ( * )   h a v e   t o   i n c l u d e   t h e   d o t   ( . )   f o r   e a c h   s u b d o m a i n .   T h e   a m o u n t   o f   m a t c h e d   s u b d o m a i n s   h a s   t o   b e   e q u a l   t o   t h e   a m o u n t   o f   g l o b   p a t t e r n s   ( * . ) ,   f o r   e x a m p l e :   * . k u b e r n e t e s . i o   w i l l   n o t   m a t c h   k u b e r n e t e s . i o ,   b u t   w i l l   m a t c h   a b c . k u b e r n e t e s . i o . * . * . k u b e r n e t e s . i o   w i l l   n o t   m a t c h   a b c . k u b e r n e t e s . i o ,   b u t   w i l l   m a t c h   a b c . d e f . k u b e r n e t e s . i o . p r e f i x . * . i o   w i l l   m a t c h   p r e f i x . k u b e r n e t e s . i o . * - g o o d . k u b e r n e t e s . i o   w i l l   m a t c h   p r e f i x - g o o d . k u b e r n e t e s . i o .   T h i s   m e a n s   t h a t   a   c o n f i g . j s o n   l i k e   t h i s   i s   v a l i d :   {   " a u t h s " :   {   " m y - r e g i s t r y . e x a m p l e / i m a g e s " :   {   " a u t h " :   " … "   } ,   " * . m y - r e g i s t r y . e x a m p l e / i m a g e s " :   {   " a u t h " :   " … "   }   }   }   I m a g e   p u l l   o p e r a t i o n s   p a s s   t h e   c r e d e n t i a l s   t o   t h e   C R I   c o n t a i n e r   r u n t i m e   f o r   e v e r y   v a l i d   p a t t e r n .   F o r   e x a m p l e ,   t h e   f o l l o w i n g   c o n t a i n e


Question: What is Note:?

Answer: B y   d e f a u l t ,   t h e   k u b e l e t   t r i e s   t o   p u l l   e a c h   i m a g e   f r o m   t h e   s p e c i f i e d   r e g i s t r y .   H o w e v e r ,   i f   t h e   i m a g e P u l l P o l i c y   p r o p e r t y   o f   t h e   c o n t a i n e r   i s   s e t   t o   I f N o t P r e s e n t   o r   N e v e r ,   t h e n   a   l o c a l   i m a g e   i s   u s e d   ( p r e f e r e n t i a l l y   o r   e x c l u s i v e l y ,   r e s p e c t i v e l y ) .   I f   y o u   w a n t   t o   r e l y   o n   p r e - p u l l e d   i m a g e s   a s   a   s u b s t i t u t e   f o r   r e g i s t r y   a u t h e n t i c a t i o n ,   y o u   m u s t   e n s u r e   a l l   n o d e s   i n   t h e   c l u s t e r   h a v e   t h e   s a m e   p r e - p u l l e d   i m a g e s .   T h i s   c a n   b e   u s e d   t o   p r e l o a d   c e r t a i n   i m a g e s   f o r   s p e e d   o r   a s   a n   a l t e r n a t i v e   t o   a u t h e n t i c a t i n g   t o   a   p r i v a t e   r e g i s t r y .   S i m i l a r   t o   t h e   u s a g e   o f   t h e   k u b e l e t   c r e d e n t i a l   p r o v i d e r ,   p r e - p u l l e d   i m a g e s   a r e   a l s o   s u i t a b l e   f o r   l a u n c h i n g   s t a t i c   P o d s   t h a t   d e p e n d   o n   i m a g e s   h o s t e d   i n   a   p r i v a t e   r e g i s t r y .


Question: What is Note:?

Answer: A c c e s s   t o   p r e - p u l l e d   i m a g e s   m a y   b e   a u t h o r i z e d   a c c o r d i n g   t o   i m a g e   p u l l   c r e d e n t i a l   v e r i f i c a t i o n .


Question: What is Ensure image pull credential verification?

Answer: I f   t h e   K u b e l e t E n s u r e S e c r e t P u l l e d I m a g e s   f e a t u r e   g a t e   i s   e n a b l e d   f o r   y o u r   c l u s t e r ,   K u b e r n e t e s   w i l l   v a l i d a t e   i m a g e   c r e d e n t i a l s   f o r   e v e r y   i m a g e   t h a t   r e q u i r e s   c r e d e n t i a l s   t o   b e   p u l l e d ,   e v e n   i f   t h a t   i m a g e   i s   a l r e a d y   p r e s e n t   o n   t h e   n o d e .   T h i s   v a l i d a t i o n   e n s u r e s   t h a t   i m a g e s   i n   a   P o d   r e q u e s t   w h i c h   h a v e   n o t   b e e n   s u c c e s s f u l l y   p u l l e d   w i t h   t h e   p r o v i d e d   c r e d e n t i a l s   m u s t   r e - p u l l   t h e   i m a g e s   f r o m   t h e   r e g i s t r y .   A d d i t i o n a l l y ,   i m a g e   p u l l s   t h a t   r e - u s e   t h e   s a m e   c r e d e n t i a l s   w h i c h   p r e v i o u s l y   r e s u l t e d   i n   a   s u c c e s s f u l   i m a g e   p u l l   w i l l   n o t   n e e d   t o   r e - p u l l   f r o m   t h e   r e g i s t r y   a n d   a r e   i n s t e a d   v a l i d a t e d   l o c a l l y   w i t h o u t   a c c e s s i n g   t h e   r e g i s t r y   ( p r o v i d e d   t h e   i m a g e   i s   a v a i l a b l e   l o c a l l y ) .   T h i s   i s   c o n t r o l l e d   b y   t h e i m a g e P u l l C r e d e n t i a l s V e r i f i c a t i o n P o l i c y   f i e l d   i n   t h e   K u b e l e t   c o n f i g u r a t i o n .   T h i s   c o n f i g u r a t i o n   c o n t r o l s   w h e n   i m a g e   p u l l   c r e d e n t i a l s   m u s t   b e   v e r i f i e d   i f   t h e   i m a g e   i s   a l r e a d y   p r e s e n t   o n   t h e   n o d e :   N e v e r V e r i f y :   M i m i c s   t h e   b e h a v i o r   o f   h a v i n g   t h i s   f e a t u r e   g a t e   d i s a b l e d .   I f   t h e   i m a g e   i s   p r e s e n t   l o c a l l y ,   i m a g e   p u l l   c r e d e n t


Question: What is Creating a Secret with a Docker config?

Answer: Y o u   n e e d   t o   k n o w   t h e   u s e r n a m e ,   r e g i s t r y   p a s s w o r d   a n d   c l i e n t   e m a i l   a d d r e s s   f o r   a u t h e n t i c a t i n g   t o   t h e   r e g i s t r y ,   a s   w e l l   a s   i t s   h o s t n a m e .   R u n   t h e   f o l l o w i n g   c o m m a n d ,   s u b s t i t u t i n g   p l a c e h o l d e r s   w i t h   t h e   a p p r o p r i a t e   v a l u e s :   k u b e c t l   c r e a t e   s e c r e t   d o c k e r - r e g i s t r y   < n a m e >   \   - - d o c k e r - s e r v e r = < d o c k e r - r e g i s t r y - s e r v e r >   \   - - d o c k e r - u s e r n a m e = < d o c k e r - u s e r >   \   - - d o c k e r - p a s s w o r d = < d o c k e r - p a s s w o r d >   \   - - d o c k e r - e m a i l = < d o c k e r - e m a i l >   I f   y o u   a l r e a d y   h a v e   a   D o c k e r   c r e d e n t i a l s   f i l e   t h e n ,   r a t h e r   t h a n   u s i n g   t h e   a b o v e   c o m m a n d ,   y o u   c a n   i m p o r t   t h e   c r e d e n t i a l s   f i l e   a s   a   K u b e r n e t e s   S e c r e t .   C r e a t e   a   S e c r e t   b a s e d   o n   e x i s t i n g   D o c k e r   c r e d e n t i a l s   e x p l a i n s   h o w   t o   s e t   t h i s   u p .   T h i s   i s   p a r t i c u l a r l y   u s e f u l   i f   y o u   a r e   u s i n g   m u l t i p l e   p r i v a t e   c o n t a i n e r   r e g i s t r i e s ,   a s   k u b e c t l   c r e a t e   s e c r e t   d o c k e r - r e g i s t r y   c r e a t e s   a   S e c r e t   t h a t   o n l y   w o r k s   w i t h   a   s i n g l e   p r i v a t e   r e g i s t r y .


Question: What is Referring to imagePullSecrets on a Pod?

Answer: N o w ,   y o u   c a n   c r e a t e   p o d s   w h i c h   r e f e r e n c e   t h a t   s e c r e t   b y   a d d i n g   t h e   i m a g e P u l l S e c r e t s   s e c t i o n   t o   a   P o d   d e f i n i t i o n .   E a c h   i t e m   i n   t h e   i m a g e P u l l S e c r e t s   a r r a y   c a n   o n l y   r e f e r e n c e   o n e   S e c r e t   i n   t h e   s a m e   n a m e s p a c e .   F o r   e x a m p l e :   c a t   < < E O F   >   p o d . y a m l   a p i V e r s i o n :   v 1   k i n d :   P o d   m e t a d a t a :   n a m e :   f o o   n a m e s p a c e :   a w e s o m e a p p s   s p e c :   c o n t a i n e r s :   -   n a m e :   f o o   i m a g e :   j a n e d o e / a w e s o m e a p p : v 1   i m a g e P u l l S e c r e t s :   -   n a m e :   m y r e g i s t r y k e y   E O F   c a t   < < E O F   > >   . / k u s t o m i z a t i o n . y a m l   r e s o u r c e s :   -   p o d . y a m l   E O F   T h i s   n e e d s   t o   b e   d o n e   f o r   e a c h   P o d   t h a t   i s   u s i n g   a   p r i v a t e   r e g i s t r y .   H o w e v e r ,   y o u   c a n   a u t o m a t e   t h i s   p r o c e s s   b y   s p e c i f y i n g   t h e   i m a g e P u l l S e c r e t s   s e c t i o n   i n   a   S e r v i c e A c c o u n t   r e s o u r c e .   S e e   A d d   I m a g e P u l l S e c r e t s   t o   a   S e r v i c e   A c c o u n t   f o r   d e t a i l e d   i n s t r u c t i o n s .   Y o u   c a n   u s e   t h i s   i n   c o n j u n c t i o n   w i t h   a   p e r - n o d e   . d o c k e r / c o n f i g . j s o n .   T h e   c r e d e n t i a l s   w i l l   b e   m e r g e d .


Question: What is Use cases?

Answer: T h e r e   a r e   a   n u m b e r   o f   s o l u t i o n s   f o r   c o n f i g u r i n g   p r i v a t e   r e g i s t r i e s .   H e r e   a r e   s o m e   c o m m o n   u s e   c a s e s   a n d   s u g g e s t e d   s o l u t i o n s .   C l u s t e r   r u n n i n g   o n l y   n o n - p r o p r i e t a r y   ( e . g .   o p e n - s o u r c e )   i m a g e s .   N o   n e e d   t o   h i d e   i m a g e s . U s e   p u b l i c   i m a g e s   f r o m   a   p u b l i c   r e g i s t r y N o   c o n f i g u r a t i o n   r e q u i r e d . S o m e   c l o u d   p r o v i d e r s   a u t o m a t i c a l l y   c a c h e   o r   m i r r o r   p u b l i c   i m a g e s ,   w h i c h   i m p r o v e s   a v a i l a b i l i t y   a n d   r e d u c e s   t h e   t i m e   t o   p u l l   i m a g e s . C l u s t e r   r u n n i n g   s o m e   p r o p r i e t a r y   i m a g e s   w h i c h   s h o u l d   b e   h i d d e n   t o   t h o s e   o u t s i d e   t h e   c o m p a n y ,   b u t   v i s i b l e   t o   a l l   c l u s t e r   u s e r s . U s e   a   h o s t e d   p r i v a t e   r e g i s t r y M a n u a l   c o n f i g u r a t i o n   m a y   b e   r e q u i r e d   o n   t h e   n o d e s   t h a t   n e e d   t o   a c c e s s   t o   p r i v a t e   r e g i s t r y . O r ,   r u n   a n   i n t e r n a l   p r i v a t e   r e g i s t r y   b e h i n d   y o u r   f i r e w a l l   w i t h   o p e n   r e a d   a c c e s s . N o   K u b e r n e t e s   c o n f i g u r a t i o n   i s   r e q u i r e d . U s e   a   h o s t e d   c o n t a i n e r   i m a g e   r e g i s t r y   s e r v i c e   t h a t   c o n t r o l s   i m a g e   a c c e s s I t   w i l l   w o r k   b e t t e r   w i t h   N o d e   a u t o s c a l i n g   t h a n   m a n u a l   n o d e   c o n f i g u r a t i o n . O r ,   o n   a   c l u s t e r   w h e r e   c h a n g i n g   t h e   n o d e   c o n f i g u r a t i o n   i s   i n c o n v e n i e n t ,   u s e   i m a g e P u


Question: What is Legacy built-in kubelet credential provider?

Answer: I n   o l d e r   v e r s i o n s   o f   K u b e r n e t e s ,   t h e   k u b e l e t   h a d   a   d i r e c t   i n t e g r a t i o n   w i t h   c l o u d   p r o v i d e r   c r e d e n t i a l s .   T h i s   p r o v i d e d   t h e   a b i l i t y   t o   d y n a m i c a l l y   f e t c h   c r e d e n t i a l s   f o r   i m a g e   r e g i s t r i e s .   T h e r e   w e r e   t h r e e   b u i l t - i n   i m p l e m e n t a t i o n s   o f   t h e   k u b e l e t   c r e d e n t i a l   p r o v i d e r   i n t e g r a t i o n :   A C R   ( A z u r e   C o n t a i n e r   R e g i s t r y ) ,   E C R   ( E l a s t i c   C o n t a i n e r   R e g i s t r y ) ,   a n d   G C R   ( G o o g l e   C o n t a i n e r   R e g i s t r y ) .   S t a r t i n g   w i t h   v e r s i o n   1 . 2 6   o f   K u b e r n e t e s ,   t h e   l e g a c y   m e c h a n i s m   h a s   b e e n   r e m o v e d ,   s o   y o u   w o u l d   n e e d   t o   e i t h e r :   c o n f i g u r e   a   k u b e l e t   i m a g e   c r e d e n t i a l   p r o v i d e r   o n   e a c h   n o d e ;   o r s p e c i f y   i m a g e   p u l l   c r e d e n t i a l s   u s i n g   i m a g e P u l l S e c r e t s   a n d   a t   l e a s t   o n e   S e c r e t .


Question: What is What's next?

Answer: R e a d   t h e   O C I   I m a g e   M a n i f e s t   S p e c i f i c a t i o n . L e a r n   a b o u t   c o n t a i n e r   i m a g e   g a r b a g e   c o l l e c t i o n . L e a r n   m o r e   a b o u t   p u l l i n g   a n   I m a g e   f r o m   a   P r i v a t e   R e g i s t r y .


Question: What is Authentication Resources?

Answer: Authentication ResourcesServiceAccountServiceAccount binds together: * a name, understood by users, and perhaps by peripheral systems, for an identity * a principal that can be authenticated and authorized * a set of secrets.TokenRequestTokenRequest requests a token for a given service account.TokenReviewTokenReview attempts to authenticate a token to a known user.CertificateSigningRequestCertificateSigningRequest objects provide a mechanism to obtain x509 certificates by submitting a certificate signing request, and having it asynchronously approved and issued.ClusterTrustBundle v1beta1ClusterTrustBundle is a cluster-scoped container for X.SelfSubjectReviewSelfSubjectReview contains the user information that the kube-apiserver has about the user making this request.PodCertificateRequest v1alpha1PodCertificateRequest encodes a pod requesting a certificate from a given signer.This page is automatically generated.If you plan to report an issue with this page, mention that the page is auto-generated in your issue description. The fix may need to happen elsewhere in the Kubernetes project.


Question: How does Authentication Resources work?

Answer: Authentication ResourcesServiceAccountServiceAccount binds together: * a name, understood by users, and perhaps by peripheral systems, for an identity * a principal that can be authenticated and authorized * a set of secrets.TokenRequestTokenRequest requests a token for a given service account.TokenReviewTokenReview attempts to authenticate a token to a known user.CertificateSigningRequestCertificateSigningRequest objects provide a mechanism to obtain x509 certificates by submitting a certificate signing request, and having it asynchronously approved and issued.ClusterTrustBundle v1beta1ClusterTrustBundle is a cluster-scoped container for X.SelfSubjectReviewSelfSubjectReview contains the user information that the kube-apiserver has about the user making this request.PodCertificateRequest v1alpha1PodCertificateRequest encodes a pod requesting a certificate from a given signer.This page is automatically generated.If you plan to report an issue with this page, mention that the page is auto-generated in your issue description. The fix may need to happen elsewhere in the Kubernetes project.


Question: When would you use Authentication Resources?

Answer: Authentication ResourcesServiceAccountServiceAccount binds together: * a name, understood by users, and perhaps by peripheral systems, for an identity * a principal that can be authenticated and authorized * a set of secrets.TokenRequestTokenRequest requests a token for a given service account.TokenReviewTokenReview attempts to authenticate a token to a known user.CertificateSigningRequestCertificateSigningRequest objects provide a mechanism to obtain x509 certificates by submitting a certificate signing request, and having it asynchronously approved and issued.ClusterTrustBundle v1beta1ClusterTrustBundle is a cluster-scoped container for X.SelfSubjectReviewSelfSubjectReview contains the user information that the kube-apiserver has about the user making this request.PodCertificateRequest v1alpha1PodCertificateRequest encodes a pod requesting a certificate from a given signer.This page is automatically generated.If you plan to report an issue with this page, mention that the page is auto-generated in your issue description. The fix may need to happen elsewhere in the Kubernetes project.


Question: What are the benefits of Authentication Resources?

Answer: Authentication ResourcesServiceAccountServiceAccount binds together: * a name, understood by users, and perhaps by peripheral systems, for an identity * a principal that can be authenticated and authorized * a set of secrets.TokenRequestTokenRequest requests a token for a given service account.TokenReviewTokenReview attempts to authenticate a token to a known user.CertificateSigningRequestCertificateSigningRequest objects provide a mechanism to obtain x509 certificates by submitting a certificate signing request, and having it asynchronously approved and issued.ClusterTrustBundle v1beta1ClusterTrustBundle is a cluster-scoped container for X.SelfSubjectReviewSelfSubjectReview contains the user information that the kube-apiserver has about the user making this request.PodCertificateRequest v1alpha1PodCertificateRequest encodes a pod requesting a certificate from a given signer.This page is automatically generated.If you plan to report an issue with this page, mention that the page is auto-generated in your issue description. The fix may need to happen elsewhere in the Kubernetes project.


Question: What is ServiceAccount?

Answer: S e r v i c e A c c o u n t   b i n d s   t o g e t h e r :   *   a   n a m e ,   u n d e r s t o o d   b y   u s e r s ,   a n d   p e r h a p s   b y   p e r i p h e r a l   s y s t e m s ,   f o r   a n   i d e n t i t y   *   a   p r i n c i p a l   t h a t   c a n   b e   a u t h e n t i c a t e d   a n d   a u t h o r i z e d   *   a   s e t   o f   s e c r e t s .


Question: What is TokenRequest?

Answer: T o k e n R e q u e s t   r e q u e s t s   a   t o k e n   f o r   a   g i v e n   s e r v i c e   a c c o u n t .


Question: What is TokenReview?

Answer: T o k e n R e v i e w   a t t e m p t s   t o   a u t h e n t i c a t e   a   t o k e n   t o   a   k n o w n   u s e r .


Question: What is CertificateSigningRequest?

Answer: C e r t i f i c a t e S i g n i n g R e q u e s t   o b j e c t s   p r o v i d e   a   m e c h a n i s m   t o   o b t a i n   x 5 0 9   c e r t i f i c a t e s   b y   s u b m i t t i n g   a   c e r t i f i c a t e   s i g n i n g   r e q u e s t ,   a n d   h a v i n g   i t   a s y n c h r o n o u s l y   a p p r o v e d   a n d   i s s u e d .


Question: What is ClusterTrustBundle v1beta1?

Answer: C l u s t e r T r u s t B u n d l e   i s   a   c l u s t e r - s c o p e d   c o n t a i n e r   f o r   X .


Question: What is SelfSubjectReview?

Answer: S e l f S u b j e c t R e v i e w   c o n t a i n s   t h e   u s e r   i n f o r m a t i o n   t h a t   t h e   k u b e - a p i s e r v e r   h a s   a b o u t   t h e   u s e r   m a k i n g   t h i s   r e q u e s t .


Question: What is PodCertificateRequest v1alpha1?

Answer: P o d C e r t i f i c a t e R e q u e s t   e n c o d e s   a   p o d   r e q u e s t i n g   a   c e r t i f i c a t e   f r o m   a   g i v e n   s i g n e r .   T h i s   p a g e   i s   a u t o m a t i c a l l y   g e n e r a t e d .   I f   y o u   p l a n   t o   r e p o r t   a n   i s s u e   w i t h   t h i s   p a g e ,   m e n t i o n   t h a t   t h e   p a g e   i s   a u t o - g e n e r a t e d   i n   y o u r   i s s u e   d e s c r i p t i o n .   T h e   f i x   m a y   n e e d   t o   h a p p e n   e l s e w h e r e   i n   t h e   K u b e r n e t e s   p r o j e c t .


Question: What is kubeadm join phase?

Answer: kubeadm join phasekubeadm join phase enables you to invoke atomic steps of the join process. Hence, you can let kubeadm do some of the work and you can fill in the gaps if you wish to apply customization.kubeadm join phase is consistent with the kubeadm join workflow, and behind the scene both use the same code.kubeadm join phaseSynopsisUse this command to invoke single phase of the "join" workflowkubeadm join phase [flags] Options-h, --helphelp for phaseOptions inherited from parent commands--rootfs stringThe path to the 'real' host root filesystem. This will cause kubeadm to chroot into the provided path.kubeadm join phase preflightUsing this phase you can execute preflight checks on a joining node.Run join pre-flight checksSynopsisRun pre-flight checks for kubeadm join.kubeadm join phase preflight [api-server-endpoint] [flags] Examples # Run join pre-flight checks using a config file. kubeadm join phase preflight --config kubeadm-config.yaml Options--apiserver-advertise-address stringIf the node should host a new control plane instance, the IP address the API Server will advertise it's listening on. If not set the default network interface will be used.--apiserver-bind-port int32 Default: 6443If the node should host a new control plane instance, the port for the API Server to bind to.--certificate-key stringUse this key to decrypt the certificate secrets uploaded by init. The certificate key is a hex encoded string that is an AES key of size 32 bytes.--config stringPath to a kubeadm configuration file.--control-planeCreate a new control plane instance on this node--cri-socket stringPath to the CRI socket to connect. If empty kubeadm will try to auto-detect this value; use this option only if you have more than one CRI installed or if you have non-standard CRI socket.--discovery-file stringFor file-based discovery, a file or URL from which to load cluster information.--discovery-token stringFor token-based discovery, the token used to validate cluster information fetched from the API server.--discovery-token-ca-cert-hash stringsFor token-based discovery, validate that the root CA public key matches this hash (format: "<type>:<value>").--discovery-token-unsafe-skip-ca-verificationFor token-based discovery, allow joining without --discovery-token-ca-cert-hash pinning.--dry-runDon't apply any changes; just output what would be done.-h, --helphelp for preflight--ignore-preflight-errors stringsA list of checks whose errors will be shown as warnings. Example: 'IsPrivilegedUser,Swap'. Value 'all' ignores errors from all checks.--node-name stringSpecify the node name.--tls-bootstrap-token stringSpecify the token used to temporarily authenticate with the Kubernetes Control Plane while joining the node.--token stringUse this token for both discovery-token and tls-bootstrap-token when those values are not provided.Options inherited from parent commands--rootfs stringThe path to the 'real' host root filesystem. This will cause kubeadm to chroot into the pr


Question: How does kubeadm join phase work?

Answer: kubeadm join phasekubeadm join phase enables you to invoke atomic steps of the join process. Hence, you can let kubeadm do some of the work and you can fill in the gaps if you wish to apply customization.kubeadm join phase is consistent with the kubeadm join workflow, and behind the scene both use the same code.kubeadm join phaseSynopsisUse this command to invoke single phase of the "join" workflowkubeadm join phase [flags] Options-h, --helphelp for phaseOptions inherited from parent commands--rootfs stringThe path to the 'real' host root filesystem. This will cause kubeadm to chroot into the provided path.kubeadm join phase preflightUsing this phase you can execute preflight checks on a joining node.Run join pre-flight checksSynopsisRun pre-flight checks for kubeadm join.kubeadm join phase preflight [api-server-endpoint] [flags] Examples # Run join pre-flight checks using a config file. kubeadm join phase preflight --config kubeadm-config.yaml Options--apiserver-advertise-address stringIf the node should host a new control plane instance, the IP address the API Server will advertise it's listening on. If not set the default network interface will be used.--apiserver-bind-port int32 Default: 6443If the node should host a new control plane instance, the port for the API Server to bind to.--certificate-key stringUse this key to decrypt the certificate secrets uploaded by init. The certificate key is a hex encoded string that is an AES key of size 32 bytes.--config stringPath to a kubeadm configuration file.--control-planeCreate a new control plane instance on this node--cri-socket stringPath to the CRI socket to connect. If empty kubeadm will try to auto-detect this value; use this option only if you have more than one CRI installed or if you have non-standard CRI socket.--discovery-file stringFor file-based discovery, a file or URL from which to load cluster information.--discovery-token stringFor token-based discovery, the token used to validate cluster information fetched from the API server.--discovery-token-ca-cert-hash stringsFor token-based discovery, validate that the root CA public key matches this hash (format: "<type>:<value>").--discovery-token-unsafe-skip-ca-verificationFor token-based discovery, allow joining without --discovery-token-ca-cert-hash pinning.--dry-runDon't apply any changes; just output what would be done.-h, --helphelp for preflight--ignore-preflight-errors stringsA list of checks whose errors will be shown as warnings. Example: 'IsPrivilegedUser,Swap'. Value 'all' ignores errors from all checks.--node-name stringSpecify the node name.--tls-bootstrap-token stringSpecify the token used to temporarily authenticate with the Kubernetes Control Plane while joining the node.--token stringUse this token for both discovery-token and tls-bootstrap-token when those values are not provided.Options inherited from parent commands--rootfs stringThe path to the 'real' host root filesystem. This will cause kubeadm to chroot into the pr


Question: When would you use kubeadm join phase?

Answer: kubeadm join phasekubeadm join phase enables you to invoke atomic steps of the join process. Hence, you can let kubeadm do some of the work and you can fill in the gaps if you wish to apply customization.kubeadm join phase is consistent with the kubeadm join workflow, and behind the scene both use the same code.kubeadm join phaseSynopsisUse this command to invoke single phase of the "join" workflowkubeadm join phase [flags] Options-h, --helphelp for phaseOptions inherited from parent commands--rootfs stringThe path to the 'real' host root filesystem. This will cause kubeadm to chroot into the provided path.kubeadm join phase preflightUsing this phase you can execute preflight checks on a joining node.Run join pre-flight checksSynopsisRun pre-flight checks for kubeadm join.kubeadm join phase preflight [api-server-endpoint] [flags] Examples # Run join pre-flight checks using a config file. kubeadm join phase preflight --config kubeadm-config.yaml Options--apiserver-advertise-address stringIf the node should host a new control plane instance, the IP address the API Server will advertise it's listening on. If not set the default network interface will be used.--apiserver-bind-port int32 Default: 6443If the node should host a new control plane instance, the port for the API Server to bind to.--certificate-key stringUse this key to decrypt the certificate secrets uploaded by init. The certificate key is a hex encoded string that is an AES key of size 32 bytes.--config stringPath to a kubeadm configuration file.--control-planeCreate a new control plane instance on this node--cri-socket stringPath to the CRI socket to connect. If empty kubeadm will try to auto-detect this value; use this option only if you have more than one CRI installed or if you have non-standard CRI socket.--discovery-file stringFor file-based discovery, a file or URL from which to load cluster information.--discovery-token stringFor token-based discovery, the token used to validate cluster information fetched from the API server.--discovery-token-ca-cert-hash stringsFor token-based discovery, validate that the root CA public key matches this hash (format: "<type>:<value>").--discovery-token-unsafe-skip-ca-verificationFor token-based discovery, allow joining without --discovery-token-ca-cert-hash pinning.--dry-runDon't apply any changes; just output what would be done.-h, --helphelp for preflight--ignore-preflight-errors stringsA list of checks whose errors will be shown as warnings. Example: 'IsPrivilegedUser,Swap'. Value 'all' ignores errors from all checks.--node-name stringSpecify the node name.--tls-bootstrap-token stringSpecify the token used to temporarily authenticate with the Kubernetes Control Plane while joining the node.--token stringUse this token for both discovery-token and tls-bootstrap-token when those values are not provided.Options inherited from parent commands--rootfs stringThe path to the 'real' host root filesystem. This will cause kubeadm to chroot into the pr


Question: What are the benefits of kubeadm join phase?

Answer: kubeadm join phasekubeadm join phase enables you to invoke atomic steps of the join process. Hence, you can let kubeadm do some of the work and you can fill in the gaps if you wish to apply customization.kubeadm join phase is consistent with the kubeadm join workflow, and behind the scene both use the same code.kubeadm join phaseSynopsisUse this command to invoke single phase of the "join" workflowkubeadm join phase [flags] Options-h, --helphelp for phaseOptions inherited from parent commands--rootfs stringThe path to the 'real' host root filesystem. This will cause kubeadm to chroot into the provided path.kubeadm join phase preflightUsing this phase you can execute preflight checks on a joining node.Run join pre-flight checksSynopsisRun pre-flight checks for kubeadm join.kubeadm join phase preflight [api-server-endpoint] [flags] Examples # Run join pre-flight checks using a config file. kubeadm join phase preflight --config kubeadm-config.yaml Options--apiserver-advertise-address stringIf the node should host a new control plane instance, the IP address the API Server will advertise it's listening on. If not set the default network interface will be used.--apiserver-bind-port int32 Default: 6443If the node should host a new control plane instance, the port for the API Server to bind to.--certificate-key stringUse this key to decrypt the certificate secrets uploaded by init. The certificate key is a hex encoded string that is an AES key of size 32 bytes.--config stringPath to a kubeadm configuration file.--control-planeCreate a new control plane instance on this node--cri-socket stringPath to the CRI socket to connect. If empty kubeadm will try to auto-detect this value; use this option only if you have more than one CRI installed or if you have non-standard CRI socket.--discovery-file stringFor file-based discovery, a file or URL from which to load cluster information.--discovery-token stringFor token-based discovery, the token used to validate cluster information fetched from the API server.--discovery-token-ca-cert-hash stringsFor token-based discovery, validate that the root CA public key matches this hash (format: "<type>:<value>").--discovery-token-unsafe-skip-ca-verificationFor token-based discovery, allow joining without --discovery-token-ca-cert-hash pinning.--dry-runDon't apply any changes; just output what would be done.-h, --helphelp for preflight--ignore-preflight-errors stringsA list of checks whose errors will be shown as warnings. Example: 'IsPrivilegedUser,Swap'. Value 'all' ignores errors from all checks.--node-name stringSpecify the node name.--tls-bootstrap-token stringSpecify the token used to temporarily authenticate with the Kubernetes Control Plane while joining the node.--token stringUse this token for both discovery-token and tls-bootstrap-token when those values are not provided.Options inherited from parent commands--rootfs stringThe path to the 'real' host root filesystem. This will cause kubeadm to chroot into the pr


Question: What is kubeadm join phase?

Answer: k u b e a d m   j o i n   p h a s e   e n a b l e s   y o u   t o   i n v o k e   a t o m i c   s t e p s   o f   t h e   j o i n   p r o c e s s .   H e n c e ,   y o u   c a n   l e t   k u b e a d m   d o   s o m e   o f   t h e   w o r k   a n d   y o u   c a n   f i l l   i n   t h e   g a p s   i f   y o u   w i s h   t o   a p p l y   c u s t o m i z a t i o n .   k u b e a d m   j o i n   p h a s e   i s   c o n s i s t e n t   w i t h   t h e   k u b e a d m   j o i n   w o r k f l o w ,   a n d   b e h i n d   t h e   s c e n e   b o t h   u s e   t h e   s a m e   c o d e .


Question: What is kubeadm join phase?

Answer: S y n o p s i s U s e   t h i s   c o m m a n d   t o   i n v o k e   s i n g l e   p h a s e   o f   t h e   " j o i n "   w o r k f l o w k u b e a d m   j o i n   p h a s e   [ f l a g s ]   O p t i o n s - h ,   - - h e l p h e l p   f o r   p h a s e O p t i o n s   i n h e r i t e d   f r o m   p a r e n t   c o m m a n d s - - r o o t f s   s t r i n g T h e   p a t h   t o   t h e   ' r e a l '   h o s t   r o o t   f i l e s y s t e m .   T h i s   w i l l   c a u s e   k u b e a d m   t o   c h r o o t   i n t o   t h e   p r o v i d e d   p a t h .


Question: What is Synopsis?

Answer: U s e   t h i s   c o m m a n d   t o   i n v o k e   s i n g l e   p h a s e   o f   t h e   " j o i n "   w o r k f l o w   k u b e a d m   j o i n   p h a s e   [ f l a g s ]


Question: What is Options?

Answer: h e l p   f o r   p h a s e


Question: What is Options inherited from parent commands?

Answer: T h e   p a t h   t o   t h e   ' r e a l '   h o s t   r o o t   f i l e s y s t e m .   T h i s   w i l l   c a u s e   k u b e a d m   t o   c h r o o t   i n t o   t h e   p r o v i d e d   p a t h .


Question: What is kubeadm join phase preflight?

Answer: U s i n g   t h i s   p h a s e   y o u   c a n   e x e c u t e   p r e f l i g h t   c h e c k s   o n   a   j o i n i n g   n o d e .   R u n   j o i n   p r e - f l i g h t   c h e c k s S y n o p s i s R u n   p r e - f l i g h t   c h e c k s   f o r   k u b e a d m   j o i n . k u b e a d m   j o i n   p h a s e   p r e f l i g h t   [ a p i - s e r v e r - e n d p o i n t ]   [ f l a g s ]   E x a m p l e s   #   R u n   j o i n   p r e - f l i g h t   c h e c k s   u s i n g   a   c o n f i g   f i l e .   k u b e a d m   j o i n   p h a s e   p r e f l i g h t   - - c o n f i g   k u b e a d m - c o n f i g . y a m l   O p t i o n s - - a p i s e r v e r - a d v e r t i s e - a d d r e s s   s t r i n g I f   t h e   n o d e   s h o u l d   h o s t   a   n e w   c o n t r o l   p l a n e   i n s t a n c e ,   t h e   I P   a d d r e s s   t h e   A P I   S e r v e r   w i l l   a d v e r t i s e   i t ' s   l i s t e n i n g   o n .   I f   n o t   s e t   t h e   d e f a u l t   n e t w o r k   i n t e r f a c e   w i l l   b e   u s e d . - - a p i s e r v e r - b i n d - p o r t   i n t 3 2   D e f a u l t :   6 4 4 3 I f   t h e   n o d e   s h o u l d   h o s t   a   n e w   c o n t r o l   p l a n e   i n s t a n c e ,   t h e   p o r t   f o r   t h e   A P I   S e r v e r   t o   b i n d   t o . - - c e r t i f i c a t e - k e y   s t r i n g U s e   t h i s   k e y   t o   d e c r y p t   t h e   c e r t i f i c a t e   s e c r e t s   u p l o a d e d   b y   i n i t .   T h e   c e r t i f i c a t e   k e y   i s   a   h e x   e n c o d e d   s t r i n g   t h a t   i s   a n   A E S   k e y   o f   s i z e   3 2   b y t e s . - - c o n f i g   s t r i n g P a t h   t o   a   k u b e a d m   c o n f i g u r a t i o n   f i l e . - - c o n t r o l - p l a n e C r e a t e   a   n e w   c o n t r o l   p l a n e   i n s t a n c e   o n   t h i s   n o d e - - c r i - s o c k e t   s t r i n g P a t h   t o   t h e   C R I   s o c k e t   t o   c o n


Question: What is Synopsis?

Answer: R u n   p r e - f l i g h t   c h e c k s   f o r   k u b e a d m   j o i n .   k u b e a d m   j o i n   p h a s e   p r e f l i g h t   [ a p i - s e r v e r - e n d p o i n t ]   [ f l a g s ]


Question: What is Examples?

Answer: #   R u n   j o i n   p r e - f l i g h t   c h e c k s   u s i n g   a   c o n f i g   f i l e .   k u b e a d m   j o i n   p h a s e   p r e f l i g h t   - - c o n f i g   k u b e a d m - c o n f i g . y a m l


Question: What is Options?

Answer: I f   t h e   n o d e   s h o u l d   h o s t   a   n e w   c o n t r o l   p l a n e   i n s t a n c e ,   t h e   I P   a d d r e s s   t h e   A P I   S e r v e r   w i l l   a d v e r t i s e   i t ' s   l i s t e n i n g   o n .   I f   n o t   s e t   t h e   d e f a u l t   n e t w o r k   i n t e r f a c e   w i l l   b e   u s e d .   I f   t h e   n o d e   s h o u l d   h o s t   a   n e w   c o n t r o l   p l a n e   i n s t a n c e ,   t h e   p o r t   f o r   t h e   A P I   S e r v e r   t o   b i n d   t o .   U s e   t h i s   k e y   t o   d e c r y p t   t h e   c e r t i f i c a t e   s e c r e t s   u p l o a d e d   b y   i n i t .   T h e   c e r t i f i c a t e   k e y   i s   a   h e x   e n c o d e d   s t r i n g   t h a t   i s   a n   A E S   k e y   o f   s i z e   3 2   b y t e s .   P a t h   t o   a   k u b e a d m   c o n f i g u r a t i o n   f i l e .   C r e a t e   a   n e w   c o n t r o l   p l a n e   i n s t a n c e   o n   t h i s   n o d e   P a t h   t o   t h e   C R I   s o c k e t   t o   c o n n e c t .   I f   e m p t y   k u b e a d m   w i l l   t r y   t o   a u t o - d e t e c t   t h i s   v a l u e ;   u s e   t h i s   o p t i o n   o n l y   i f   y o u   h a v e   m o r e   t h a n   o n e   C R I   i n s t a l l e d   o r   i f   y o u   h a v e   n o n - s t a n d a r d   C R I   s o c k e t .   F o r   f i l e - b a s e d   d i s c o v e r y ,   a   f i l e   o r   U R L   f r o m   w h i c h   t o   l o a d   c l u s t e r   i n f o r m a t i o n .   F o r   t o k e n - b a s e d   d i s c o v e r y ,   t h e   t o k e n   u s e d   t o   v a l i d a t e   c l u s t e r   i n f o r m a t i o n   f e t c h e d   f r o m   t h e   A P I   s e r v e r .   F o r   t o k e n - b a s e d   d i s c o v e r y ,   v a l i d a t e   t h a t   t h e   r o o t   C A   p u b l i c   k e y   m a t c h e s   t h i s   h a s h   ( f o r m a t :   " < t y p e > : < v a l u e > " ) .   F o r   t o k e n - b a s e d   d


Question: What is Options inherited from parent commands?

Answer: T h e   p a t h   t o   t h e   ' r e a l '   h o s t   r o o t   f i l e s y s t e m .   T h i s   w i l l   c a u s e   k u b e a d m   t o   c h r o o t   i n t o   t h e   p r o v i d e d   p a t h .


Question: What is kubeadm join phase control-plane-prepare?

Answer: U s i n g   t h i s   p h a s e   y o u   c a n   p r e p a r e   a   n o d e   f o r   s e r v i n g   a   c o n t r o l - p l a n e .   S y n o p s i s P r e p a r e   t h e   m a c h i n e   f o r   s e r v i n g   a   c o n t r o l   p l a n e k u b e a d m   j o i n   p h a s e   c o n t r o l - p l a n e - p r e p a r e   [ f l a g s ]   E x a m p l e s   #   P r e p a r e s   t h e   m a c h i n e   f o r   s e r v i n g   a   c o n t r o l   p l a n e   k u b e a d m   j o i n   p h a s e   c o n t r o l - p l a n e - p r e p a r e   a l l   O p t i o n s - h ,   - - h e l p h e l p   f o r   c o n t r o l - p l a n e - p r e p a r e O p t i o n s   i n h e r i t e d   f r o m   p a r e n t   c o m m a n d s - - r o o t f s   s t r i n g T h e   p a t h   t o   t h e   ' r e a l '   h o s t   r o o t   f i l e s y s t e m .   T h i s   w i l l   c a u s e   k u b e a d m   t o   c h r o o t   i n t o   t h e   p r o v i d e d   p a t h .


Question: What is Synopsis?

Answer: P r e p a r e   t h e   m a c h i n e   f o r   s e r v i n g   a   c o n t r o l   p l a n e   k u b e a d m   j o i n   p h a s e   c o n t r o l - p l a n e - p r e p a r e   [ f l a g s ]


Question: What is Examples?

Answer: #   P r e p a r e s   t h e   m a c h i n e   f o r   s e r v i n g   a   c o n t r o l   p l a n e   k u b e a d m   j o i n   p h a s e   c o n t r o l - p l a n e - p r e p a r e   a l l


Question: What is Options?

Answer: h e l p   f o r   c o n t r o l - p l a n e - p r e p a r e


Question: What is Options inherited from parent commands?

Answer: T h e   p a t h   t o   t h e   ' r e a l '   h o s t   r o o t   f i l e s y s t e m .   T h i s   w i l l   c a u s e   k u b e a d m   t o   c h r o o t   i n t o   t h e   p r o v i d e d   p a t h .   S y n o p s i s P r e p a r e   t h e   m a c h i n e   f o r   s e r v i n g   a   c o n t r o l   p l a n e k u b e a d m   j o i n   p h a s e   c o n t r o l - p l a n e - p r e p a r e   a l l   [ a p i - s e r v e r - e n d p o i n t ]   [ f l a g s ]   O p t i o n s - - a p i s e r v e r - a d v e r t i s e - a d d r e s s   s t r i n g I f   t h e   n o d e   s h o u l d   h o s t   a   n e w   c o n t r o l   p l a n e   i n s t a n c e ,   t h e   I P   a d d r e s s   t h e   A P I   S e r v e r   w i l l   a d v e r t i s e   i t ' s   l i s t e n i n g   o n .   I f   n o t   s e t   t h e   d e f a u l t   n e t w o r k   i n t e r f a c e   w i l l   b e   u s e d . - - a p i s e r v e r - b i n d - p o r t   i n t 3 2   D e f a u l t :   6 4 4 3 I f   t h e   n o d e   s h o u l d   h o s t   a   n e w   c o n t r o l   p l a n e   i n s t a n c e ,   t h e   p o r t   f o r   t h e   A P I   S e r v e r   t o   b i n d   t o . - - c e r t i f i c a t e - k e y   s t r i n g U s e   t h i s   k e y   t o   d e c r y p t   t h e   c e r t i f i c a t e   s e c r e t s   u p l o a d e d   b y   i n i t .   T h e   c e r t i f i c a t e   k e y   i s   a   h e x   e n c o d e d   s t r i n g   t h a t   i s   a n   A E S   k e y   o f   s i z e   3 2   b y t e s . - - c o n f i g   s t r i n g P a t h   t o   a   k u b e a d m   c o n f i g u r a t i o n   f i l e . - - c o n t r o l - p l a n e C r e a t e   a   n e w   c o n t r o l   p l a n e   i n s t a n c e   o n   t h i s   n o d e - - d i s c o v e r y - f i l e   s t r i n g F o r   f i l e - b a s e d   d i s c o v e r y ,   a   f i l e   o r   U R L   f r o m   w h i c h   t o   l o a d   c l u s t e r   i n f o r m a t i o n . - - d i s c o v e r y - t o k e n   s t r i n g F o r   t o k


Question: What is Synopsis?

Answer: P r e p a r e   t h e   m a c h i n e   f o r   s e r v i n g   a   c o n t r o l   p l a n e   k u b e a d m   j o i n   p h a s e   c o n t r o l - p l a n e - p r e p a r e   a l l   [ a p i - s e r v e r - e n d p o i n t ]   [ f l a g s ]


Question: What is Options?

Answer: I f   t h e   n o d e   s h o u l d   h o s t   a   n e w   c o n t r o l   p l a n e   i n s t a n c e ,   t h e   I P   a d d r e s s   t h e   A P I   S e r v e r   w i l l   a d v e r t i s e   i t ' s   l i s t e n i n g   o n .   I f   n o t   s e t   t h e   d e f a u l t   n e t w o r k   i n t e r f a c e   w i l l   b e   u s e d .   I f   t h e   n o d e   s h o u l d   h o s t   a   n e w   c o n t r o l   p l a n e   i n s t a n c e ,   t h e   p o r t   f o r   t h e   A P I   S e r v e r   t o   b i n d   t o .   U s e   t h i s   k e y   t o   d e c r y p t   t h e   c e r t i f i c a t e   s e c r e t s   u p l o a d e d   b y   i n i t .   T h e   c e r t i f i c a t e   k e y   i s   a   h e x   e n c o d e d   s t r i n g   t h a t   i s   a n   A E S   k e y   o f   s i z e   3 2   b y t e s .   P a t h   t o   a   k u b e a d m   c o n f i g u r a t i o n   f i l e .   C r e a t e   a   n e w   c o n t r o l   p l a n e   i n s t a n c e   o n   t h i s   n o d e   F o r   f i l e - b a s e d   d i s c o v e r y ,   a   f i l e   o r   U R L   f r o m   w h i c h   t o   l o a d   c l u s t e r   i n f o r m a t i o n .   F o r   t o k e n - b a s e d   d i s c o v e r y ,   t h e   t o k e n   u s e d   t o   v a l i d a t e   c l u s t e r   i n f o r m a t i o n   f e t c h e d   f r o m   t h e   A P I   s e r v e r .   F o r   t o k e n - b a s e d   d i s c o v e r y ,   v a l i d a t e   t h a t   t h e   r o o t   C A   p u b l i c   k e y   m a t c h e s   t h i s   h a s h   ( f o r m a t :   " < t y p e > : < v a l u e > " ) .   F o r   t o k e n - b a s e d   d i s c o v e r y ,   a l l o w   j o i n i n g   w i t h o u t   - - d i s c o v e r y - t o k e n - c a - c e r t - h a s h   p i n n i n g .   D o n ' t   a p p l y   a n y   c h a n g e s ;   j u s t   o u t p u t   w h a t   w o u l d   b e   d o n e .   h e l p   f o r   a l l   S p e c i f y   t h e   n o d e   n a m e .   P a t h   t o   a   d i r e c t o r y   t h a t


Question: What is Options inherited from parent commands?

Answer: T h e   p a t h   t o   t h e   ' r e a l '   h o s t   r o o t   f i l e s y s t e m .   T h i s   w i l l   c a u s e   k u b e a d m   t o   c h r o o t   i n t o   t h e   p r o v i d e d   p a t h .   S y n o p s i s D o w n l o a d   c e r t i f i c a t e s   s h a r e d   a m o n g   c o n t r o l - p l a n e   n o d e s   f r o m   t h e   k u b e a d m - c e r t s   S e c r e t k u b e a d m   j o i n   p h a s e   c o n t r o l - p l a n e - p r e p a r e   d o w n l o a d - c e r t s   [ a p i - s e r v e r - e n d p o i n t ]   [ f l a g s ]   O p t i o n s - - c e r t i f i c a t e - k e y   s t r i n g U s e   t h i s   k e y   t o   d e c r y p t   t h e   c e r t i f i c a t e   s e c r e t s   u p l o a d e d   b y   i n i t .   T h e   c e r t i f i c a t e   k e y   i s   a   h e x   e n c o d e d   s t r i n g   t h a t   i s   a n   A E S   k e y   o f   s i z e   3 2   b y t e s . - - c o n f i g   s t r i n g P a t h   t o   a   k u b e a d m   c o n f i g u r a t i o n   f i l e . - - c o n t r o l - p l a n e C r e a t e   a   n e w   c o n t r o l   p l a n e   i n s t a n c e   o n   t h i s   n o d e - - d i s c o v e r y - f i l e   s t r i n g F o r   f i l e - b a s e d   d i s c o v e r y ,   a   f i l e   o r   U R L   f r o m   w h i c h   t o   l o a d   c l u s t e r   i n f o r m a t i o n . - - d i s c o v e r y - t o k e n   s t r i n g F o r   t o k e n - b a s e d   d i s c o v e r y ,   t h e   t o k e n   u s e d   t o   v a l i d a t e   c l u s t e r   i n f o r m a t i o n   f e t c h e d   f r o m   t h e   A P I   s e r v e r . - - d i s c o v e r y - t o k e n - c a - c e r t - h a s h   s t r i n g s F o r   t o k e n - b a s e d   d i s c o v e r y ,   v a l i d a t e   t h a t   t h e   r o o t   C A   p u b l i c   k e y   m a t c h e s   t h i s   h a s h   ( f o r m a t :   " < t y p e > : < v a l u e > " ) . - - d i s c o v e r y - t o k e n - u n s a f e - s k i p - c a - v e r i f i c a t i o n F o r   t o k


Question: What is Synopsis?

Answer: D o w n l o a d   c e r t i f i c a t e s   s h a r e d   a m o n g   c o n t r o l - p l a n e   n o d e s   f r o m   t h e   k u b e a d m - c e r t s   S e c r e t   k u b e a d m   j o i n   p h a s e   c o n t r o l - p l a n e - p r e p a r e   d o w n l o a d - c e r t s   [ a p i - s e r v e r - e n d p o i n t ]   [ f l a g s ]


Question: What is Options?

Answer: U s e   t h i s   k e y   t o   d e c r y p t   t h e   c e r t i f i c a t e   s e c r e t s   u p l o a d e d   b y   i n i t .   T h e   c e r t i f i c a t e   k e y   i s   a   h e x   e n c o d e d   s t r i n g   t h a t   i s   a n   A E S   k e y   o f   s i z e   3 2   b y t e s .   P a t h   t o   a   k u b e a d m   c o n f i g u r a t i o n   f i l e .   C r e a t e   a   n e w   c o n t r o l   p l a n e   i n s t a n c e   o n   t h i s   n o d e   F o r   f i l e - b a s e d   d i s c o v e r y ,   a   f i l e   o r   U R L   f r o m   w h i c h   t o   l o a d   c l u s t e r   i n f o r m a t i o n .   F o r   t o k e n - b a s e d   d i s c o v e r y ,   t h e   t o k e n   u s e d   t o   v a l i d a t e   c l u s t e r   i n f o r m a t i o n   f e t c h e d   f r o m   t h e   A P I   s e r v e r .   F o r   t o k e n - b a s e d   d i s c o v e r y ,   v a l i d a t e   t h a t   t h e   r o o t   C A   p u b l i c   k e y   m a t c h e s   t h i s   h a s h   ( f o r m a t :   " < t y p e > : < v a l u e > " ) .   F o r   t o k e n - b a s e d   d i s c o v e r y ,   a l l o w   j o i n i n g   w i t h o u t   - - d i s c o v e r y - t o k e n - c a - c e r t - h a s h   p i n n i n g .   D o n ' t   a p p l y   a n y   c h a n g e s ;   j u s t   o u t p u t   w h a t   w o u l d   b e   d o n e .   h e l p   f o r   d o w n l o a d - c e r t s   S p e c i f y   t h e   t o k e n   u s e d   t o   t e m p o r a r i l y   a u t h e n t i c a t e   w i t h   t h e   K u b e r n e t e s   C o n t r o l   P l a n e   w h i l e   j o i n i n g   t h e   n o d e .   U s e   t h i s   t o k e n   f o r   b o t h   d i s c o v e r y - t o k e n   a n d   t l s - b o o t s t r a p - t o k e n   w h e n   t h o s e   v a l u e s   a r e   n o t   p r o v i d e d .


Question: What is Options inherited from parent commands?

Answer: T h e   p a t h   t o   t h e   ' r e a l '   h o s t   r o o t   f i l e s y s t e m .   T h i s   w i l l   c a u s e   k u b e a d m   t o   c h r o o t   i n t o   t h e   p r o v i d e d   p a t h .   S y n o p s i s G e n e r a t e   t h e   c e r t i f i c a t e s   f o r   t h e   n e w   c o n t r o l   p l a n e   c o m p o n e n t s k u b e a d m   j o i n   p h a s e   c o n t r o l - p l a n e - p r e p a r e   c e r t s   [ a p i - s e r v e r - e n d p o i n t ]   [ f l a g s ]   O p t i o n s - - a p i s e r v e r - a d v e r t i s e - a d d r e s s   s t r i n g I f   t h e   n o d e   s h o u l d   h o s t   a   n e w   c o n t r o l   p l a n e   i n s t a n c e ,   t h e   I P   a d d r e s s   t h e   A P I   S e r v e r   w i l l   a d v e r t i s e   i t ' s   l i s t e n i n g   o n .   I f   n o t   s e t   t h e   d e f a u l t   n e t w o r k   i n t e r f a c e   w i l l   b e   u s e d . - - c o n f i g   s t r i n g P a t h   t o   a   k u b e a d m   c o n f i g u r a t i o n   f i l e . - - c o n t r o l - p l a n e C r e a t e   a   n e w   c o n t r o l   p l a n e   i n s t a n c e   o n   t h i s   n o d e - - d i s c o v e r y - f i l e   s t r i n g F o r   f i l e - b a s e d   d i s c o v e r y ,   a   f i l e   o r   U R L   f r o m   w h i c h   t o   l o a d   c l u s t e r   i n f o r m a t i o n . - - d i s c o v e r y - t o k e n   s t r i n g F o r   t o k e n - b a s e d   d i s c o v e r y ,   t h e   t o k e n   u s e d   t o   v a l i d a t e   c l u s t e r   i n f o r m a t i o n   f e t c h e d   f r o m   t h e   A P I   s e r v e r . - - d i s c o v e r y - t o k e n - c a - c e r t - h a s h   s t r i n g s F o r   t o k e n - b a s e d   d i s c o v e r y ,   v a l i d a t e   t h a t   t h e   r o o t   C A   p u b l i c   k e y   m a t c h e s   t h i s   h a s h   ( f o r m a t :   " < t y p e > : < v a l u e > " ) . - - d i s c o v e r y - t o k e n - u n s a f e - s k i p - c a - v e r i f i c a t i o n


Question: What is Synopsis?

Answer: G e n e r a t e   t h e   c e r t i f i c a t e s   f o r   t h e   n e w   c o n t r o l   p l a n e   c o m p o n e n t s   k u b e a d m   j o i n   p h a s e   c o n t r o l - p l a n e - p r e p a r e   c e r t s   [ a p i - s e r v e r - e n d p o i n t ]   [ f l a g s ]


Question: What is Options?

Answer: I f   t h e   n o d e   s h o u l d   h o s t   a   n e w   c o n t r o l   p l a n e   i n s t a n c e ,   t h e   I P   a d d r e s s   t h e   A P I   S e r v e r   w i l l   a d v e r t i s e   i t ' s   l i s t e n i n g   o n .   I f   n o t   s e t   t h e   d e f a u l t   n e t w o r k   i n t e r f a c e   w i l l   b e   u s e d .   P a t h   t o   a   k u b e a d m   c o n f i g u r a t i o n   f i l e .   C r e a t e   a   n e w   c o n t r o l   p l a n e   i n s t a n c e   o n   t h i s   n o d e   F o r   f i l e - b a s e d   d i s c o v e r y ,   a   f i l e   o r   U R L   f r o m   w h i c h   t o   l o a d   c l u s t e r   i n f o r m a t i o n .   F o r   t o k e n - b a s e d   d i s c o v e r y ,   t h e   t o k e n   u s e d   t o   v a l i d a t e   c l u s t e r   i n f o r m a t i o n   f e t c h e d   f r o m   t h e   A P I   s e r v e r .   F o r   t o k e n - b a s e d   d i s c o v e r y ,   v a l i d a t e   t h a t   t h e   r o o t   C A   p u b l i c   k e y   m a t c h e s   t h i s   h a s h   ( f o r m a t :   " < t y p e > : < v a l u e > " ) .   F o r   t o k e n - b a s e d   d i s c o v e r y ,   a l l o w   j o i n i n g   w i t h o u t   - - d i s c o v e r y - t o k e n - c a - c e r t - h a s h   p i n n i n g .   D o n ' t   a p p l y   a n y   c h a n g e s ;   j u s t   o u t p u t   w h a t   w o u l d   b e   d o n e .   h e l p   f o r   c e r t s   S p e c i f y   t h e   n o d e   n a m e .   S p e c i f y   t h e   t o k e n   u s e d   t o   t e m p o r a r i l y   a u t h e n t i c a t e   w i t h   t h e   K u b e r n e t e s   C o n t r o l   P l a n e   w h i l e   j o i n i n g   t h e   n o d e .   U s e   t h i s   t o k e n   f o r   b o t h   d i s c o v e r y - t o k e n   a n d   t l s - b o o t s t r a p - t o k e n   w h e n   t h o s e   v a l u e s   a r e   n o t   p r o v i d e d .


Question: What is Options inherited from parent commands?

Answer: T h e   p a t h   t o   t h e   ' r e a l '   h o s t   r o o t   f i l e s y s t e m .   T h i s   w i l l   c a u s e   k u b e a d m   t o   c h r o o t   i n t o   t h e   p r o v i d e d   p a t h .   S y n o p s i s G e n e r a t e   t h e   k u b e c o n f i g   f o r   t h e   n e w   c o n t r o l   p l a n e   c o m p o n e n t s k u b e a d m   j o i n   p h a s e   c o n t r o l - p l a n e - p r e p a r e   k u b e c o n f i g   [ a p i - s e r v e r - e n d p o i n t ]   [ f l a g s ]   O p t i o n s - - c e r t i f i c a t e - k e y   s t r i n g U s e   t h i s   k e y   t o   d e c r y p t   t h e   c e r t i f i c a t e   s e c r e t s   u p l o a d e d   b y   i n i t .   T h e   c e r t i f i c a t e   k e y   i s   a   h e x   e n c o d e d   s t r i n g   t h a t   i s   a n   A E S   k e y   o f   s i z e   3 2   b y t e s . - - c o n f i g   s t r i n g P a t h   t o   a   k u b e a d m   c o n f i g u r a t i o n   f i l e . - - c o n t r o l - p l a n e C r e a t e   a   n e w   c o n t r o l   p l a n e   i n s t a n c e   o n   t h i s   n o d e - - d i s c o v e r y - f i l e   s t r i n g F o r   f i l e - b a s e d   d i s c o v e r y ,   a   f i l e   o r   U R L   f r o m   w h i c h   t o   l o a d   c l u s t e r   i n f o r m a t i o n . - - d i s c o v e r y - t o k e n   s t r i n g F o r   t o k e n - b a s e d   d i s c o v e r y ,   t h e   t o k e n   u s e d   t o   v a l i d a t e   c l u s t e r   i n f o r m a t i o n   f e t c h e d   f r o m   t h e   A P I   s e r v e r . - - d i s c o v e r y - t o k e n - c a - c e r t - h a s h   s t r i n g s F o r   t o k e n - b a s e d   d i s c o v e r y ,   v a l i d a t e   t h a t   t h e   r o o t   C A   p u b l i c   k e y   m a t c h e s   t h i s   h a s h   ( f o r m a t :   " < t y p e > : < v a l u e > " ) . - - d i s c o v e r y - t o k e n - u n s a f e - s k i p - c a - v e r i f i c a t i o n F o r   t o k e n - b a s e d   d i s c o v e r y ,   a l l o w   j o


Question: What is Synopsis?

Answer: G e n e r a t e   t h e   k u b e c o n f i g   f o r   t h e   n e w   c o n t r o l   p l a n e   c o m p o n e n t s   k u b e a d m   j o i n   p h a s e   c o n t r o l - p l a n e - p r e p a r e   k u b e c o n f i g   [ a p i - s e r v e r - e n d p o i n t ]   [ f l a g s ]


Question: What is Options?

Answer: U s e   t h i s   k e y   t o   d e c r y p t   t h e   c e r t i f i c a t e   s e c r e t s   u p l o a d e d   b y   i n i t .   T h e   c e r t i f i c a t e   k e y   i s   a   h e x   e n c o d e d   s t r i n g   t h a t   i s   a n   A E S   k e y   o f   s i z e   3 2   b y t e s .   P a t h   t o   a   k u b e a d m   c o n f i g u r a t i o n   f i l e .   C r e a t e   a   n e w   c o n t r o l   p l a n e   i n s t a n c e   o n   t h i s   n o d e   F o r   f i l e - b a s e d   d i s c o v e r y ,   a   f i l e   o r   U R L   f r o m   w h i c h   t o   l o a d   c l u s t e r   i n f o r m a t i o n .   F o r   t o k e n - b a s e d   d i s c o v e r y ,   t h e   t o k e n   u s e d   t o   v a l i d a t e   c l u s t e r   i n f o r m a t i o n   f e t c h e d   f r o m   t h e   A P I   s e r v e r .   F o r   t o k e n - b a s e d   d i s c o v e r y ,   v a l i d a t e   t h a t   t h e   r o o t   C A   p u b l i c   k e y   m a t c h e s   t h i s   h a s h   ( f o r m a t :   " < t y p e > : < v a l u e > " ) .   F o r   t o k e n - b a s e d   d i s c o v e r y ,   a l l o w   j o i n i n g   w i t h o u t   - - d i s c o v e r y - t o k e n - c a - c e r t - h a s h   p i n n i n g .   D o n ' t   a p p l y   a n y   c h a n g e s ;   j u s t   o u t p u t   w h a t   w o u l d   b e   d o n e .   h e l p   f o r   k u b e c o n f i g   S p e c i f y   t h e   t o k e n   u s e d   t o   t e m p o r a r i l y   a u t h e n t i c a t e   w i t h   t h e   K u b e r n e t e s   C o n t r o l   P l a n e   w h i l e   j o i n i n g   t h e   n o d e .   U s e   t h i s   t o k e n   f o r   b o t h   d i s c o v e r y - t o k e n   a n d   t l s - b o o t s t r a p - t o k e n   w h e n   t h o s e   v a l u e s   a r e   n o t   p r o v i d e d .


Question: What is Options inherited from parent commands?

Answer: T h e   p a t h   t o   t h e   ' r e a l '   h o s t   r o o t   f i l e s y s t e m .   T h i s   w i l l   c a u s e   k u b e a d m   t o   c h r o o t   i n t o   t h e   p r o v i d e d   p a t h .   S y n o p s i s G e n e r a t e   t h e   m a n i f e s t s   f o r   t h e   n e w   c o n t r o l   p l a n e   c o m p o n e n t s k u b e a d m   j o i n   p h a s e   c o n t r o l - p l a n e - p r e p a r e   c o n t r o l - p l a n e   [ f l a g s ]   O p t i o n s - - a p i s e r v e r - a d v e r t i s e - a d d r e s s   s t r i n g I f   t h e   n o d e   s h o u l d   h o s t   a   n e w   c o n t r o l   p l a n e   i n s t a n c e ,   t h e   I P   a d d r e s s   t h e   A P I   S e r v e r   w i l l   a d v e r t i s e   i t ' s   l i s t e n i n g   o n .   I f   n o t   s e t   t h e   d e f a u l t   n e t w o r k   i n t e r f a c e   w i l l   b e   u s e d . - - a p i s e r v e r - b i n d - p o r t   i n t 3 2   D e f a u l t :   6 4 4 3 I f   t h e   n o d e   s h o u l d   h o s t   a   n e w   c o n t r o l   p l a n e   i n s t a n c e ,   t h e   p o r t   f o r   t h e   A P I   S e r v e r   t o   b i n d   t o . - - c o n f i g   s t r i n g P a t h   t o   a   k u b e a d m   c o n f i g u r a t i o n   f i l e . - - c o n t r o l - p l a n e C r e a t e   a   n e w   c o n t r o l   p l a n e   i n s t a n c e   o n   t h i s   n o d e - - d r y - r u n D o n ' t   a p p l y   a n y   c h a n g e s ;   j u s t   o u t p u t   w h a t   w o u l d   b e   d o n e . - h ,   - - h e l p h e l p   f o r   c o n t r o l - p l a n e - - p a t c h e s   s t r i n g P a t h   t o   a   d i r e c t o r y   t h a t   c o n t a i n s   f i l e s   n a m e d   " t a r g e t [ s u f f i x ] [ + p a t c h t y p e ] . e x t e n s i o n " .   F o r   e x a m p l e ,   " k u b e - a p i s e r v e r 0 + m e r g e . y a m l "   o r   j u s t   " e t c d . j s o n " .   " t a r g e t "   c a n   b e   o n e   o f   " k u b e - a p i s e r v e r " ,


Question: What is Synopsis?

Answer: G e n e r a t e   t h e   m a n i f e s t s   f o r   t h e   n e w   c o n t r o l   p l a n e   c o m p o n e n t s   k u b e a d m   j o i n   p h a s e   c o n t r o l - p l a n e - p r e p a r e   c o n t r o l - p l a n e   [ f l a g s ]


Question: What is Options?

Answer: I f   t h e   n o d e   s h o u l d   h o s t   a   n e w   c o n t r o l   p l a n e   i n s t a n c e ,   t h e   I P   a d d r e s s   t h e   A P I   S e r v e r   w i l l   a d v e r t i s e   i t ' s   l i s t e n i n g   o n .   I f   n o t   s e t   t h e   d e f a u l t   n e t w o r k   i n t e r f a c e   w i l l   b e   u s e d .   I f   t h e   n o d e   s h o u l d   h o s t   a   n e w   c o n t r o l   p l a n e   i n s t a n c e ,   t h e   p o r t   f o r   t h e   A P I   S e r v e r   t o   b i n d   t o .   P a t h   t o   a   k u b e a d m   c o n f i g u r a t i o n   f i l e .   C r e a t e   a   n e w   c o n t r o l   p l a n e   i n s t a n c e   o n   t h i s   n o d e   D o n ' t   a p p l y   a n y   c h a n g e s ;   j u s t   o u t p u t   w h a t   w o u l d   b e   d o n e .   h e l p   f o r   c o n t r o l - p l a n e   P a t h   t o   a   d i r e c t o r y   t h a t   c o n t a i n s   f i l e s   n a m e d   " t a r g e t [ s u f f i x ] [ + p a t c h t y p e ] . e x t e n s i o n " .   F o r   e x a m p l e ,   " k u b e - a p i s e r v e r 0 + m e r g e . y a m l "   o r   j u s t   " e t c d . j s o n " .   " t a r g e t "   c a n   b e   o n e   o f   " k u b e - a p i s e r v e r " ,   " k u b e - c o n t r o l l e r - m a n a g e r " ,   " k u b e - s c h e d u l e r " ,   " e t c d " ,   " k u b e l e t c o n f i g u r a t i o n " ,   " c o r e d n s d e p l o y m e n t " .   " p a t c h t y p e "   c a n   b e   o n e   o f   " s t r a t e g i c " ,   " m e r g e "   o r   " j s o n "   a n d   t h e y   m a t c h   t h e   p a t c h   f o r m a t s   s u p p o r t e d   b y   k u b e c t l .   T h e   d e f a u l t   " p a t c h t y p e "   i s   " s t r a t e g i c " .   " e x t e n s i o n "   m u s t   b e   e i t h e r   " j s o n "   o r   " y a m l " .   " s u f f i x "   i s   a n   o p t i o n a l   s t r i n g   t h a t   c a n   b e   u s e d   t o   d e t e r m i n e   w h i c h   p a t c h e s   a r e   a p


Question: What is Options inherited from parent commands?

Answer: T h e   p a t h   t o   t h e   ' r e a l '   h o s t   r o o t   f i l e s y s t e m .   T h i s   w i l l   c a u s e   k u b e a d m   t o   c h r o o t   i n t o   t h e   p r o v i d e d   p a t h .


Question: What is kubeadm join phase kubelet-start?

Answer: U s i n g   t h i s   p h a s e   y o u   c a n   w r i t e   t h e   k u b e l e t   s e t t i n g s ,   c e r t i f i c a t e s   a n d   ( r e ) s t a r t   t h e   k u b e l e t .   W r i t e   k u b e l e t   s e t t i n g s ,   c e r t i f i c a t e s   a n d   ( r e ) s t a r t   t h e   k u b e l e t S y n o p s i s W r i t e   a   f i l e   w i t h   K u b e l e t C o n f i g u r a t i o n   a n d   a n   e n v i r o n m e n t   f i l e   w i t h   n o d e   s p e c i f i c   k u b e l e t   s e t t i n g s ,   a n d   t h e n   ( r e ) s t a r t   k u b e l e t . k u b e a d m   j o i n   p h a s e   k u b e l e t - s t a r t   [ a p i - s e r v e r - e n d p o i n t ]   [ f l a g s ]   O p t i o n s - - c o n f i g   s t r i n g P a t h   t o   a   k u b e a d m   c o n f i g u r a t i o n   f i l e . - - c r i - s o c k e t   s t r i n g P a t h   t o   t h e   C R I   s o c k e t   t o   c o n n e c t .   I f   e m p t y   k u b e a d m   w i l l   t r y   t o   a u t o - d e t e c t   t h i s   v a l u e ;   u s e   t h i s   o p t i o n   o n l y   i f   y o u   h a v e   m o r e   t h a n   o n e   C R I   i n s t a l l e d   o r   i f   y o u   h a v e   n o n - s t a n d a r d   C R I   s o c k e t . - - d i s c o v e r y - f i l e   s t r i n g F o r   f i l e - b a s e d   d i s c o v e r y ,   a   f i l e   o r   U R L   f r o m   w h i c h   t o   l o a d   c l u s t e r   i n f o r m a t i o n . - - d i s c o v e r y - t o k e n   s t r i n g F o r   t o k e n - b a s e d   d i s c o v e r y ,   t h e   t o k e n   u s e d   t o   v a l i d a t e   c l u s t e r   i n f o r m a t i o n   f e t c h e d   f r o m   t h e   A P I   s e r v e r . - - d i s c o v e r y - t o k e n - c a - c e r t - h a s h   s t r i n g s F o r   t o k e n - b a s e d   d i s c o v e r y ,   v a l i d a t e   t h a t   t h e   r o o t   C A   p u b l i c   k e y   m a t c h e s   t h i s   h a s h   ( f o r m a t :   " < t y p e > : < v a l u e > " ) . - - d i s c


Question: What is Synopsis?

Answer: W r i t e   a   f i l e   w i t h   K u b e l e t C o n f i g u r a t i o n   a n d   a n   e n v i r o n m e n t   f i l e   w i t h   n o d e   s p e c i f i c   k u b e l e t   s e t t i n g s ,   a n d   t h e n   ( r e ) s t a r t   k u b e l e t .   k u b e a d m   j o i n   p h a s e   k u b e l e t - s t a r t   [ a p i - s e r v e r - e n d p o i n t ]   [ f l a g s ]


Question: What is Options?

Answer: P a t h   t o   a   k u b e a d m   c o n f i g u r a t i o n   f i l e .   P a t h   t o   t h e   C R I   s o c k e t   t o   c o n n e c t .   I f   e m p t y   k u b e a d m   w i l l   t r y   t o   a u t o - d e t e c t   t h i s   v a l u e ;   u s e   t h i s   o p t i o n   o n l y   i f   y o u   h a v e   m o r e   t h a n   o n e   C R I   i n s t a l l e d   o r   i f   y o u   h a v e   n o n - s t a n d a r d   C R I   s o c k e t .   F o r   f i l e - b a s e d   d i s c o v e r y ,   a   f i l e   o r   U R L   f r o m   w h i c h   t o   l o a d   c l u s t e r   i n f o r m a t i o n .   F o r   t o k e n - b a s e d   d i s c o v e r y ,   t h e   t o k e n   u s e d   t o   v a l i d a t e   c l u s t e r   i n f o r m a t i o n   f e t c h e d   f r o m   t h e   A P I   s e r v e r .   F o r   t o k e n - b a s e d   d i s c o v e r y ,   v a l i d a t e   t h a t   t h e   r o o t   C A   p u b l i c   k e y   m a t c h e s   t h i s   h a s h   ( f o r m a t :   " < t y p e > : < v a l u e > " ) .   F o r   t o k e n - b a s e d   d i s c o v e r y ,   a l l o w   j o i n i n g   w i t h o u t   - - d i s c o v e r y - t o k e n - c a - c e r t - h a s h   p i n n i n g .   D o n ' t   a p p l y   a n y   c h a n g e s ;   j u s t   o u t p u t   w h a t   w o u l d   b e   d o n e .   h e l p   f o r   k u b e l e t - s t a r t   S p e c i f y   t h e   n o d e   n a m e .   P a t h   t o   a   d i r e c t o r y   t h a t   c o n t a i n s   f i l e s   n a m e d   " t a r g e t [ s u f f i x ] [ + p a t c h t y p e ] . e x t e n s i o n " .   F o r   e x a m p l e ,   " k u b e - a p i s e r v e r 0 + m e r g e . y a m l "   o r   j u s t   " e t c d . j s o n " .   " t a r g e t "   c a n   b e   o n e   o f   " k u b e - a p i s e r v e r " ,   " k u b e - c o n t r o l l e r - m a n a g e r " ,   " k u b e - s c h e d u l e r " ,   " e t c d " ,   " k u b e l e t c o n f i g u r a t i o n " ,   " c o r e d n s d e p l o y m e n t " .


Question: What is Options inherited from parent commands?

Answer: T h e   p a t h   t o   t h e   ' r e a l '   h o s t   r o o t   f i l e s y s t e m .   T h i s   w i l l   c a u s e   k u b e a d m   t o   c h r o o t   i n t o   t h e   p r o v i d e d   p a t h .


Question: What is kubeadm join phase control-plane-join?

Answer: U s i n g   t h i s   p h a s e   y o u   c a n   j o i n   a   n o d e   a s   a   c o n t r o l - p l a n e   i n s t a n c e .   S y n o p s i s J o i n   a   m a c h i n e   a s   a   c o n t r o l   p l a n e   i n s t a n c e k u b e a d m   j o i n   p h a s e   c o n t r o l - p l a n e - j o i n   [ f l a g s ]   E x a m p l e s   #   J o i n s   a   m a c h i n e   a s   a   c o n t r o l   p l a n e   i n s t a n c e   k u b e a d m   j o i n   p h a s e   c o n t r o l - p l a n e - j o i n   a l l   O p t i o n s - h ,   - - h e l p h e l p   f o r   c o n t r o l - p l a n e - j o i n O p t i o n s   i n h e r i t e d   f r o m   p a r e n t   c o m m a n d s - - r o o t f s   s t r i n g T h e   p a t h   t o   t h e   ' r e a l '   h o s t   r o o t   f i l e s y s t e m .   T h i s   w i l l   c a u s e   k u b e a d m   t o   c h r o o t   i n t o   t h e   p r o v i d e d   p a t h .


Question: What is Synopsis?

Answer: J o i n   a   m a c h i n e   a s   a   c o n t r o l   p l a n e   i n s t a n c e   k u b e a d m   j o i n   p h a s e   c o n t r o l - p l a n e - j o i n   [ f l a g s ]


Question: What is Examples?

Answer: #   J o i n s   a   m a c h i n e   a s   a   c o n t r o l   p l a n e   i n s t a n c e   k u b e a d m   j o i n   p h a s e   c o n t r o l - p l a n e - j o i n   a l l


Question: What is Options?

Answer: h e l p   f o r   c o n t r o l - p l a n e - j o i n


Question: What is Options inherited from parent commands?

Answer: T h e   p a t h   t o   t h e   ' r e a l '   h o s t   r o o t   f i l e s y s t e m .   T h i s   w i l l   c a u s e   k u b e a d m   t o   c h r o o t   i n t o   t h e   p r o v i d e d   p a t h .   S y n o p s i s J o i n   a   m a c h i n e   a s   a   c o n t r o l   p l a n e   i n s t a n c e k u b e a d m   j o i n   p h a s e   c o n t r o l - p l a n e - j o i n   a l l   [ f l a g s ]   O p t i o n s - - a p i s e r v e r - a d v e r t i s e - a d d r e s s   s t r i n g I f   t h e   n o d e   s h o u l d   h o s t   a   n e w   c o n t r o l   p l a n e   i n s t a n c e ,   t h e   I P   a d d r e s s   t h e   A P I   S e r v e r   w i l l   a d v e r t i s e   i t ' s   l i s t e n i n g   o n .   I f   n o t   s e t   t h e   d e f a u l t   n e t w o r k   i n t e r f a c e   w i l l   b e   u s e d . - - c o n f i g   s t r i n g P a t h   t o   a   k u b e a d m   c o n f i g u r a t i o n   f i l e . - - c o n t r o l - p l a n e C r e a t e   a   n e w   c o n t r o l   p l a n e   i n s t a n c e   o n   t h i s   n o d e - - d r y - r u n D o n ' t   a p p l y   a n y   c h a n g e s ;   j u s t   o u t p u t   w h a t   w o u l d   b e   d o n e . - h ,   - - h e l p h e l p   f o r   a l l - - n o d e - n a m e   s t r i n g S p e c i f y   t h e   n o d e   n a m e . - - p a t c h e s   s t r i n g P a t h   t o   a   d i r e c t o r y   t h a t   c o n t a i n s   f i l e s   n a m e d   " t a r g e t [ s u f f i x ] [ + p a t c h t y p e ] . e x t e n s i o n " .   F o r   e x a m p l e ,   " k u b e - a p i s e r v e r 0 + m e r g e . y a m l "   o r   j u s t   " e t c d . j s o n " .   " t a r g e t "   c a n   b e   o n e   o f   " k u b e - a p i s e r v e r " ,   " k u b e - c o n t r o l l e r - m a n a g e r " ,   " k u b e - s c h e d u l e r " ,   " e t c d " ,   " k u b e l e t c o n f i g u r a t i o n " ,   " c o r e d n s d e p l o y m e n t " .   " p a t c h t y p e "   c a n   b e   o n e   o f   " s t r a t e g i c


Question: What is Synopsis?

Answer: J o i n   a   m a c h i n e   a s   a   c o n t r o l   p l a n e   i n s t a n c e   k u b e a d m   j o i n   p h a s e   c o n t r o l - p l a n e - j o i n   a l l   [ f l a g s ]


Question: What is Options?

Answer: I f   t h e   n o d e   s h o u l d   h o s t   a   n e w   c o n t r o l   p l a n e   i n s t a n c e ,   t h e   I P   a d d r e s s   t h e   A P I   S e r v e r   w i l l   a d v e r t i s e   i t ' s   l i s t e n i n g   o n .   I f   n o t   s e t   t h e   d e f a u l t   n e t w o r k   i n t e r f a c e   w i l l   b e   u s e d .   P a t h   t o   a   k u b e a d m   c o n f i g u r a t i o n   f i l e .   C r e a t e   a   n e w   c o n t r o l   p l a n e   i n s t a n c e   o n   t h i s   n o d e   D o n ' t   a p p l y   a n y   c h a n g e s ;   j u s t   o u t p u t   w h a t   w o u l d   b e   d o n e .   h e l p   f o r   a l l   S p e c i f y   t h e   n o d e   n a m e .   P a t h   t o   a   d i r e c t o r y   t h a t   c o n t a i n s   f i l e s   n a m e d   " t a r g e t [ s u f f i x ] [ + p a t c h t y p e ] . e x t e n s i o n " .   F o r   e x a m p l e ,   " k u b e - a p i s e r v e r 0 + m e r g e . y a m l "   o r   j u s t   " e t c d . j s o n " .   " t a r g e t "   c a n   b e   o n e   o f   " k u b e - a p i s e r v e r " ,   " k u b e - c o n t r o l l e r - m a n a g e r " ,   " k u b e - s c h e d u l e r " ,   " e t c d " ,   " k u b e l e t c o n f i g u r a t i o n " ,   " c o r e d n s d e p l o y m e n t " .   " p a t c h t y p e "   c a n   b e   o n e   o f   " s t r a t e g i c " ,   " m e r g e "   o r   " j s o n "   a n d   t h e y   m a t c h   t h e   p a t c h   f o r m a t s   s u p p o r t e d   b y   k u b e c t l .   T h e   d e f a u l t   " p a t c h t y p e "   i s   " s t r a t e g i c " .   " e x t e n s i o n "   m u s t   b e   e i t h e r   " j s o n "   o r   " y a m l " .   " s u f f i x "   i s   a n   o p t i o n a l   s t r i n g   t h a t   c a n   b e   u s e d   t o   d e t e r m i n e   w h i c h   p a t c h e s   a r e   a p p l i e d   f i r s t   a l p h a - n u m e r i c a l l y .


Question: What is Options inherited from parent commands?

Answer: T h e   p a t h   t o   t h e   ' r e a l '   h o s t   r o o t   f i l e s y s t e m .   T h i s   w i l l   c a u s e   k u b e a d m   t o   c h r o o t   i n t o   t h e   p r o v i d e d   p a t h .   S y n o p s i s A d d   a   n e w   l o c a l   e t c d   m e m b e r k u b e a d m   j o i n   p h a s e   c o n t r o l - p l a n e - j o i n   e t c d   [ f l a g s ]   O p t i o n s - - a p i s e r v e r - a d v e r t i s e - a d d r e s s   s t r i n g I f   t h e   n o d e   s h o u l d   h o s t   a   n e w   c o n t r o l   p l a n e   i n s t a n c e ,   t h e   I P   a d d r e s s   t h e   A P I   S e r v e r   w i l l   a d v e r t i s e   i t ' s   l i s t e n i n g   o n .   I f   n o t   s e t   t h e   d e f a u l t   n e t w o r k   i n t e r f a c e   w i l l   b e   u s e d . - - c o n f i g   s t r i n g P a t h   t o   a   k u b e a d m   c o n f i g u r a t i o n   f i l e . - - c o n t r o l - p l a n e C r e a t e   a   n e w   c o n t r o l   p l a n e   i n s t a n c e   o n   t h i s   n o d e - - d r y - r u n D o n ' t   a p p l y   a n y   c h a n g e s ;   j u s t   o u t p u t   w h a t   w o u l d   b e   d o n e . - h ,   - - h e l p h e l p   f o r   e t c d - - n o d e - n a m e   s t r i n g S p e c i f y   t h e   n o d e   n a m e . - - p a t c h e s   s t r i n g P a t h   t o   a   d i r e c t o r y   t h a t   c o n t a i n s   f i l e s   n a m e d   " t a r g e t [ s u f f i x ] [ + p a t c h t y p e ] . e x t e n s i o n " .   F o r   e x a m p l e ,   " k u b e - a p i s e r v e r 0 + m e r g e . y a m l "   o r   j u s t   " e t c d . j s o n " .   " t a r g e t "   c a n   b e   o n e   o f   " k u b e - a p i s e r v e r " ,   " k u b e - c o n t r o l l e r - m a n a g e r " ,   " k u b e - s c h e d u l e r " ,   " e t c d " ,   " k u b e l e t c o n f i g u r a t i o n " ,   " c o r e d n s d e p l o y m e n t " .   " p a t c h t y p e "   c a n   b e   o n e   o f   " s t r a t e g i c " ,   " m e r g e "   o r


Question: What is Synopsis?

Answer: A d d   a   n e w   l o c a l   e t c d   m e m b e r   k u b e a d m   j o i n   p h a s e   c o n t r o l - p l a n e - j o i n   e t c d   [ f l a g s ]


Question: What is Options?

Answer: I f   t h e   n o d e   s h o u l d   h o s t   a   n e w   c o n t r o l   p l a n e   i n s t a n c e ,   t h e   I P   a d d r e s s   t h e   A P I   S e r v e r   w i l l   a d v e r t i s e   i t ' s   l i s t e n i n g   o n .   I f   n o t   s e t   t h e   d e f a u l t   n e t w o r k   i n t e r f a c e   w i l l   b e   u s e d .   P a t h   t o   a   k u b e a d m   c o n f i g u r a t i o n   f i l e .   C r e a t e   a   n e w   c o n t r o l   p l a n e   i n s t a n c e   o n   t h i s   n o d e   D o n ' t   a p p l y   a n y   c h a n g e s ;   j u s t   o u t p u t   w h a t   w o u l d   b e   d o n e .   h e l p   f o r   e t c d   S p e c i f y   t h e   n o d e   n a m e .   P a t h   t o   a   d i r e c t o r y   t h a t   c o n t a i n s   f i l e s   n a m e d   " t a r g e t [ s u f f i x ] [ + p a t c h t y p e ] . e x t e n s i o n " .   F o r   e x a m p l e ,   " k u b e - a p i s e r v e r 0 + m e r g e . y a m l "   o r   j u s t   " e t c d . j s o n " .   " t a r g e t "   c a n   b e   o n e   o f   " k u b e - a p i s e r v e r " ,   " k u b e - c o n t r o l l e r - m a n a g e r " ,   " k u b e - s c h e d u l e r " ,   " e t c d " ,   " k u b e l e t c o n f i g u r a t i o n " ,   " c o r e d n s d e p l o y m e n t " .   " p a t c h t y p e "   c a n   b e   o n e   o f   " s t r a t e g i c " ,   " m e r g e "   o r   " j s o n "   a n d   t h e y   m a t c h   t h e   p a t c h   f o r m a t s   s u p p o r t e d   b y   k u b e c t l .   T h e   d e f a u l t   " p a t c h t y p e "   i s   " s t r a t e g i c " .   " e x t e n s i o n "   m u s t   b e   e i t h e r   " j s o n "   o r   " y a m l " .   " s u f f i x "   i s   a n   o p t i o n a l   s t r i n g   t h a t   c a n   b e   u s e d   t o   d e t e r m i n e   w h i c h   p a t c h e s   a r e   a p p l i e d   f i r s t   a l p h a - n u m e r i c a l l y .


Question: What is Options inherited from parent commands?

Answer: T h e   p a t h   t o   t h e   ' r e a l '   h o s t   r o o t   f i l e s y s t e m .   T h i s   w i l l   c a u s e   k u b e a d m   t o   c h r o o t   i n t o   t h e   p r o v i d e d   p a t h .   S y n o p s i s M a r k   a   n o d e   a s   a   c o n t r o l - p l a n e k u b e a d m   j o i n   p h a s e   c o n t r o l - p l a n e - j o i n   m a r k - c o n t r o l - p l a n e   [ f l a g s ]   O p t i o n s - - c o n f i g   s t r i n g P a t h   t o   a   k u b e a d m   c o n f i g u r a t i o n   f i l e . - - c o n t r o l - p l a n e C r e a t e   a   n e w   c o n t r o l   p l a n e   i n s t a n c e   o n   t h i s   n o d e - - d r y - r u n D o n ' t   a p p l y   a n y   c h a n g e s ;   j u s t   o u t p u t   w h a t   w o u l d   b e   d o n e . - h ,   - - h e l p h e l p   f o r   m a r k - c o n t r o l - p l a n e - - n o d e - n a m e   s t r i n g S p e c i f y   t h e   n o d e   n a m e . O p t i o n s   i n h e r i t e d   f r o m   p a r e n t   c o m m a n d s - - r o o t f s   s t r i n g T h e   p a t h   t o   t h e   ' r e a l '   h o s t   r o o t   f i l e s y s t e m .   T h i s   w i l l   c a u s e   k u b e a d m   t o   c h r o o t   i n t o   t h e   p r o v i d e d   p a t h .


Question: What is Synopsis?

Answer: M a r k   a   n o d e   a s   a   c o n t r o l - p l a n e   k u b e a d m   j o i n   p h a s e   c o n t r o l - p l a n e - j o i n   m a r k - c o n t r o l - p l a n e   [ f l a g s ]


Question: What is Options?

Answer: P a t h   t o   a   k u b e a d m   c o n f i g u r a t i o n   f i l e .   C r e a t e   a   n e w   c o n t r o l   p l a n e   i n s t a n c e   o n   t h i s   n o d e   D o n ' t   a p p l y   a n y   c h a n g e s ;   j u s t   o u t p u t   w h a t   w o u l d   b e   d o n e .   h e l p   f o r   m a r k - c o n t r o l - p l a n e   S p e c i f y   t h e   n o d e   n a m e .


Question: What is Options inherited from parent commands?

Answer: T h e   p a t h   t o   t h e   ' r e a l '   h o s t   r o o t   f i l e s y s t e m .   T h i s   w i l l   c a u s e   k u b e a d m   t o   c h r o o t   i n t o   t h e   p r o v i d e d   p a t h .


Question: What is What's next?

Answer: k u b e a d m   i n i t   t o   b o o t s t r a p   a   K u b e r n e t e s   c o n t r o l - p l a n e   n o d e k u b e a d m   j o i n   t o   c o n n e c t   a   n o d e   t o   t h e   c l u s t e r k u b e a d m   r e s e t   t o   r e v e r t   a n y   c h a n g e s   m a d e   t o   t h i s   h o s t   b y   k u b e a d m   i n i t   o r   k u b e a d m   j o i n k u b e a d m   a l p h a   t o   t r y   e x p e r i m e n t a l   f u n c t i o n a l i t y


Question: What is Install Tools?

Answer: Install ToolsSet up Kubernetes tools on your computer.kubectlThe Kubernetes command-line tool, kubectl, allows you to run commands against Kubernetes clusters. You can use kubectl to deploy applications, inspect and manage cluster resources, and view logs. For more information including a complete list of kubectl operations, see the kubectl reference documentation.kubectl is installable on a variety of Linux platforms, macOS and Windows. Find your preferred operating system below.Install kubectl on LinuxInstall kubectl on macOSInstall kubectl on Windowskindkind lets you run Kubernetes on your local computer. This tool requires that you have either Docker or Podman installed.The kind Quick Start page shows you what you need to do to get up and running with kind.View kind Quick Start GuideminikubeLike kind, minikube is a tool that lets you run Kubernetes locally. minikube runs an all-in-one or a multi-node local Kubernetes cluster on your personal computer (including Windows, macOS and Linux PCs) so that you can try out Kubernetes, or for daily development work.You can follow the official Get Started! guide if your focus is on getting the tool installed.View minikube Get Started! GuideOnce you have minikube working, you can use it to run a sample application.kubeadmYou can use the kubeadm tool to create and manage Kubernetes clusters. It performs the actions necessary to get a minimum viable, secure cluster up and running in a user friendly way.Installing kubeadm shows you how to install kubeadm. Once installed, you can use it to create a cluster.View kubeadm Install Guide