fluxv2

helmrelease.yaml

apiVersion: helm.toolkit.fluxcd.io/v2beta1
kind: HelmRelease
metadata:
  name: frontend
  namespace: default
spec:
  interval: 5m
  chart:
    spec:
      chart: ./frontend/frontend
      sourceRef:
        kind: GitRepository
        name: charts-repo
        namespace: default
      interval: 1m
  values:
    imagePullSecrets:
      - name: gitlab
    annotations:
      sidecar.istio.io/inject: "false"
    image:
      repository: registry.gitlab.com/company/project/frontend
      tag: release-0.8.0 # {"$imagepolicy": "default:frontend:tag"}
    resources:
      requests:
        cpu: 10m
        memory: 40Mi
      limits:
        cpu: 20m
        memory: 100Mi
    affinity:
      podAntiAffinity:
        preferredDuringSchedulingIgnoredDuringExecution:
        # Prefer to spread out across zones from similar pods
        - podAffinityTerm:
            labelSelector:
              matchExpressions:
              - key: app.kubernetes.io/name
                operator: In
                values:
                  - frontend
            topologyKey: topology.kubernetes.io/zone
          weight: 1

image-things.yaml

---
apiVersion: image.toolkit.fluxcd.io/v1alpha1
kind: ImagePolicy
metadata:
  name: frontend
  namespace: default
spec:
  imageRepositoryRef:
    name: frontend
  filterTags:
    pattern: '^release-(?P<v>.*)'
    extract: '$v'
  policy:
    semver:
      range: '^0'
---
apiVersion: image.toolkit.fluxcd.io/v1alpha1
kind: ImageRepository
metadata:
  name: frontend
  namespace: default
spec:
  image: registry.gitlab.com/company/project/frontend
  interval: 1m0s
  secretRef:
    name: gitlab

imageautoupdates.yaml

apiVersion: image.toolkit.fluxcd.io/v1alpha1
kind: ImageUpdateAutomation
metadata:
  name: staging
  namespace: flux-system
spec:
  checkout:
    branch: master
    gitRepositoryRef:
      name: flux-system
  commit:
    authorEmail: fluxbot@luminovo.ai
    authorName: fluxbot
    messageTemplate: |
      Automated image update

      Files:
      {{ range $filename, $_ := .Updated.Files -}}
      - {{ $filename }}
      {{ end -}}

      Objects:
      {{ range $resource, $_ := .Updated.Objects -}}
      - {{ $resource.Kind }} {{ $resource.Name }}
      {{ end -}}

      Images:
      {{ range .Updated.Images -}}
      - {{.}}
      {{ end -}}
  interval: 1m0s
  push:
    branch: master
  update:
    path: ./clusters/staging # this refers to the path where either the above kustomization or helmrelease are.
    strategy: Setters

kustomization.yaml

apiVersion: kustomize.toolkit.fluxcd.io/v1beta1
kind: Kustomization
metadata:
  name: frontend
  namespace: flux-system
spec:
  interval: 10m0s
  sourceRef:
    kind: GitRepository
    name: flux-system
  path: ./apps/frontend
  prune: true
  validation: client
  patchesStrategicMerge:
    - apiVersion: helm.toolkit.fluxcd.io/v2beta1
      kind: HelmRelease
      metadata:
        name: frontend
      spec:
        values:
          image:
            tag: release-0.8.0 # {"$imagepolicy": "default:frontend:tag"}