Missing way to add annotations to deployment

[evangelion1204]

Hi,

I couldn't find a way to add annotations to a deployment. For service, ingress and even pods it's straight forward. The annotation is at Zalando to define a custom log parsers for Scalyr.
Maybe I just missed the way to achieve it.

[mikkeloscar]

That annotation is added at the pod level i.e. the podTemplate part of the spec.

Example:

apiVersion: zalando.org/v1
kind: StackSet
metadata:
  name: my-app
spec:
  ingress:
    hosts: [my-app.example.org, alt.name.org]
    backendPort: 80
  stackLifecycle:
    scaledownTTLSeconds: 300
    limit: 5
  stackTemplate:
    spec:
      version: v1
      replicas: 3
      podTemplate:
        metadata:
          annotations:
            kubernetes-log-watcher/scalyr-parser: '[{"container": "nginx", "parser": "my-parser"}]'
        spec:
          containers:
          - name: nginx
            image: nginx
            ports:
            - containerPort: 80
              name: ingress

[evangelion1204]

Thanks a lot, I will try 😄

[evangelion1204]

Hi, now we really need to add a annotation on deployment level. Is there any way to do it?

[mikkeloscar]

Not right now, what is the use case? :)

[evangelion1204]

Our SRE added a custom scaleup/scaledown annotation that is currently only supported at deployments. I asked to move it to the service itself but he argumented that the ReplicaSet is actually owned by the deployment therefor the annotation should belong to the deployment and not service.

[mikkeloscar]

As discussed in private this use case might not be solved by allowing specifying annotations on deployments. Rather the annotations should be on the stacks and the tool which rely on the annotation should operate on stacks instead of deployments.

[szuecs]

@mikkeloscar we have the same with docker-meta in our test cluster that we need for e2e image webhook tests.
People annotated their stackset with kube-downscaler annotation : downscaler/force-uptime: "true" which is not propagated to deployment from stackset. So either we need an option to have metadata for deployment or propagate the annotation.