Upgrade image automation to v1alpha2 APIs

[stefanprodan]

In the v0.13 release of flux we have promoted the image automation APIs from v1alpha1 to v1alpha2, this new version comes with breaking changes.

API changes

For ImageRepository and ImagePolicy there are no changes to the specification besides the version bump from image.toolkit.fluxcd.io/v1alpha1 to image.toolkit.fluxcd.io/v1alpha2.

For ImageUpdateAutomation, v1alpha2 rearranges the API types to provide for future extension. Here are the differences, and where each v1alpha1 field goes:

v1alpha1 field	change in v1alpha2
.spec.checkout	moved to .spec.git.checkout, and optional
	gitRepositoryRef is now .spec.sourceRef
	branch is now ref, and optional
.spec.commit	moved to .spec.git.commit
	authorName and authorEmail now author.name and author.email
.spec.push	moved to .spec.git.push

For more details, see the v1alpha2 API spec documentation.

Upgrade procedure

Upgrade the Flux CLI

Upgrade your Flux CLI to v0.13 by downloading the binary from GitHub or using Homebrew:

brew upgrade fluxcd/tap/flux

Upgrade the Flux components

Run bootstrap:

flux bootstrap git \
 --components-extra=image-reflector-controller,image-automation-controller \
 ......

After the upgraded, the image-automation-controller will start logging errors like:

$ flux logs --level=error

ImageUpdateAutomation.image.toolkit.fluxcd.io "flux-system" is invalid: spec.sourceRef: Required value

Update the manifests in Git

Clone the repo locally and change the version of all your ImageRepository, ImagePolicy, ImageUpdateAutomation manifests:

apiVersion: image.toolkit.fluxcd.io/v1alpha1

# becomes

apiVersion: image.toolkit.fluxcd.io/v1alpha2

Rewrite your ImageUpdateAutomation v1alpha1 manifests to v1alpha2:

From:

apiVersion: image.toolkit.fluxcd.io/v1alpha1
kind: ImageUpdateAutomation
metadata:
  name: flux-system
  namespace: flux-system
spec:
  interval: 1m0s
  sourceRef:
    kind: GitRepository
    name: flux-system
    branch: main
  interval: 5m
  update:
    strategy: Setters
    path: ./clusters/my-cluster
  commit:
    authorName: fluxbot
    authorEmail: fluxbot@example.com
    messageTemplate: '{{range .Updated.Images}}{{println .}}{{end}}'
  push:
    branch: auto

To:

apiVersion: image.toolkit.fluxcd.io/v1alpha2
kind: ImageUpdateAutomation
metadata:
  name: flux-system
  namespace: flux-system
spec:
  sourceRef: # moved from `.spec.checkout`
    kind: GitRepository
    name: flux-system
  interval: 5m
  update:
    strategy: Setters
    path: ./clusters/my-cluster
  git:
    checkout: # moved under `git`, loses `gitRepositoryRef`
      ref:
        branch: main # moved into `ref` struct
    commit: # moved under `git`
      author:
        name: fluxbot  # moved from `authorName`
        email: fluxbot@example.com # moved from `authorEmail`
      messageTemplate: '{{range .Updated.Images}}{{println .}}{{end}}'
    push: # moved under `git`
      branch: auto

Commit and push the manifests change to Git, then tell flux to pull and apply changes with:

flux reconcile kustomization flux-system --with-source

Finally verify that the image update automation is working again:

flux get images all --all-namespaces

[gabecazares-cc]

Your first line has a typo "from v1alpha1 to v1alpha1" but is cleared up by the rest of the post. Thank you for all your hard work!!