Technical session from Container World, Feb 17 2016, Santa Clara Convention Center

1. Turning Containers
into Cattle
Subbu Allamaraju
Container World Feb 2016

2. null hypothesis
Containers don’t matter
Cluster managers don’t matter
Schedulers don’t matter
2

3. Heterogeneity
is the norm
Operational
overhead
3

4. 4

5. Change fragility
Ephemeral touch points
Mortal boxes
5

6. Classical
automation
cycle
Remediate
Provision
Deploy
Monitor
Poorly or incompletely
implemented in reality
6

7. Image from http://www.creatiline.com/tag/dog-clip-art-black-and-white
That’s how pets
are born!
7

8. Remediate
Provision
Deploy
Monitor
Implement
desired state
Observe the
current state
Converge
current state to
the desired
state 8

9. Implement
desired state
Observe the
current state
Converge
current state to
the desired
state
Describe the
desired state
Run the app
in its desired
state
9
App’s view

10. App’s view
Here is my
app’s
desired state
Run the app
in its desired
state
A format to
build + ship
+ run
Policies to
describe
the desired
state
Cluster
manager
10

11. Containers matter … to standardize how to
build, ship and run
Cluster managers matter … to let apps
declare intent and to coerce the
infrastructure to maintain that intent
11

12. 12

13. 1. Genericity
13

14. 2. Declarative
14

15. 3. Hide full
infrastructure
stack
Compute Network Storage
Cluster manager
...
15

16. Invisible infrastructureImmutable infrastructureDisposable infrastructure
16

17. 17
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