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Annotations

Les annotations sont utilisé pour ajouter de petites information:

  • Used to add additional information about your cluster resources
  • Mostly used by people or tooling to make decisions
  • Build, release, and image information exposed in easily accessible areas
  • Saves you from having to write integrations to retrieve data from external data sources
  • Non-hierarchical, key/value pair
  • Can’t be used to query/select Pods or other resources
  • Data is used for “other” purposes
  • Keys can be up to 63 characters
  • Values can be up to 256KB

Imperative annotations​

kubectl annotate pod nginx-pod owner=Anthony
kubectl annotate pod nginx-pod owner=NotAnthony --overwrite

Declarative annotations​

apiVersion: v1
kind: Pod
    metadata:
        name: nginx-pod
        annotation: owner: Anthony
spec:
    containers:
        - name: nginx
        image: nginx
...