K8 config file

Question 1

3 parts of a Kubernetes config file

Answer 1

config file main thing for configuring components in k8 cluster

metadata
specification
status (this is generated by K8) (k8 looks at desired state and actual state, if does not match k8 will try to fix this)

Question 2

What does etcd do?

Answer 2

This holds the status of any k8 cluster

Question 3

Whats template?

Answer 3

Where pod has its own configuration. Port to open, image based on etc etc

Question 4

How do you know which pods belong to which

Answer 4

using labels (this is in config file) and selectors (this is in service component)

Question 5

kubectl get secret

Answer 5

get secret

Question 6

How to reference a secret in k8 config file without values

Answer 6

Template >> specificiation
ValueFrom
SecretkeyRef
Name
Key

Question 7

kubectl describe

Answer 7

can see information about the pod

Question 8

how to reference ConfigMap in yaml file

Answer 8

very similar to secret. different is putting ‘configmapkeyref’ instead