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Intro to Docker Swarm

@ e v e r e t t _ t o e w sD e v e l o p e r A d v o c a t e @ R a c k s p a c e

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Docker Swarm

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• C l u s t e r i n g f o r m u l t i p l e D o c ke r n o d e s

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Container Orchestrat ion Engines

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Benefits

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• L e s s c o m p l e x i t y•D o c ke r A P I• E c o s y s t e m• S c h e d u l i n g• S t r a t e g i e s•C o n s t r a i n t s• Fi l t e r s• Re s c h e d u l i n g•D N S

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Docker Swarm

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• C l u s t e r i s t h e n e w n o r m a l• C l u s t e r a w a r e

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EffectiveDocker Swarm

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Images

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• d o c k e r b u i l d• B u i l d a c u s t o m i m a g e• Ru n a c o n t a i n e r t a k i n g u p a l i m i t e d r e s o u r c e• Tw i c e

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Images

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• C o n s t r a i n t• A ffi n i t y• P u b l i c r e g i s t r y• P r i v a t e r e g i s t r y

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Volumes

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• d o c k e r v o l u m e• C r e a t e a v o l u m e•Wr i t e s o m e d a t a• Re a d i t b a c k

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Volumes

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•D i s t r i b u t e d fi l e s y s t e m• S t o r e d a t a o ff -c l u s t e r•D a t a v o l u m e c o n t a i n e r s• B a c k u p a n d r e s t o r e !

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Networks

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• Ru n a c o n t a i n e r w i t h p u b l i s h e d p o r t ( s )• Re f e r t o a n o t h e r c o n t a i n e r b y n a m e

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Networks

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• d o c k e r n e t w o r k•O v e r l a y n e t w o r k s•D N S

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Security

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• I A N A S E• S w a r m• T L S•O v e r l a y n e t w o r k s• C o n t a i n e r•Wa t c h t o w e r•D o c ke r B e n c h

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Security

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•D a e m o n• A u t h Z p l u g i n•U p d a t e s•N o d e• s e c c o m p• A p p A r m o r

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Service Discovery

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• S e r v i c e r e g i s t r a t i o n• S e r v i c e d i s c o v e r y• L o a d b a l a n c i n g

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Service Discovery

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•D N S• I n t e r l o c k• e t c d + r e g i s t r a t o r + c o n f d + h a p r o x y / n g i n x• c o n s u l + r e g i s t r a t o r + c o n s u l t e m p l a t e + h a p r o x y / n g i n x

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Where to Swarm?

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• d o c k e r - m a c h i n e•M i c r o s o f t A z u r e•D o c ke r U C P•D o c ke r D a t a c e n t e r• C a r i n a b y R a c k s p a c e• g e t c a r i n a . c o m

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Effect ive Docker Swarm• 11 :05am|Wednesday |Room 16BOffice Hours• 1 :05am|Wednesday |O ’Re i l l y

Boo thThink outs ide the container• 2 :40am|Wednesday |Room 16BRackspace Booth• Wednesday & Thursday |Expo Ha l l

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Thank You!@ e v e r e t t _ t o e w s

D e v e l o p e r A d v o c a t e @ R a c k s p a c e