151 lines
5.6 KiB
YAML
151 lines
5.6 KiB
YAML
# This is a pre-release of a Helm 2to3 migration template to facilitate
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# the migration of Auto DevOps releases to Helm 3.
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#
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# To use, set the CI variable MIGRATE_HELM_2TO3 to "true".
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# For more details, go to https://docs.gitlab.com/ee/topics/autodevops/upgrading_auto_deploy_dependencies.html#helm-v3
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.helm-2to3-migrate:
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image: "${CI_TEMPLATE_REGISTRY_HOST}/gitlab-org/cluster-integration/helm-install-image/releases/helm-2to3-2.17.0-3.5.3-kube-1.16.15-alpine-3.12"
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# NOTE: We use the deploy stage because:
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# - It exists in all versions of Auto DevOps.
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# - It is _empty_.
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# - It precedes any Kubernetes deployments.
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# Users on older versions of GitLab can include this template without adjusting their stages.
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stage: deploy
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needs: []
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artifacts:
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when: always
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expire_in: 1 week
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paths:
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- helm-2-release-backups/
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before_script:
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- mkdir helm-2-release-backups
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- apk add jq
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- export TILLER_NAMESPACE=$KUBE_NAMESPACE
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- export HELM_HOST="localhost:44134"
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- nohup tiller -listen "${HELM_HOST}" >tiller.log 2>&1 &
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- helm2 init --client-only
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script:
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# check for releases
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- releases=$(helm2 ls --output json | jq -r '.Releases[].Name')
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# back up entire namespace if the user opts into it
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- |
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if [[ -n "$releases" && -n "$BACKUP_HELM2_RELEASES" ]]; then
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echo "Backing up releases"
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kubectl get configmap -n "$KUBE_NAMESPACE" -l "OWNER=TILLER" -o yaml > "helm-2-release-backups/$KUBE_NAMESPACE.yaml"
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fi
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# adopt manifests from each release
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- |
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for release in $releases; do
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chart=$(helm2 ls "^$release\$" --output json | jq -r '.Releases[0].Chart')
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echo "Adopting Helm v2 manifests from $release"
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# some resource kinds must be listed explicitly https://github.com/kubernetes/kubernetes/issues/42885
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for name in $(kubectl -n "$KUBE_NAMESPACE" get all,ingress,daemonset -o name -l chart="$chart"); do
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kubectl annotate -n "$KUBE_NAMESPACE" --overwrite "$name" meta.helm.sh/release-name="$release"
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kubectl annotate -n "$KUBE_NAMESPACE" --overwrite "$name" meta.helm.sh/release-namespace="$KUBE_NAMESPACE"
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kubectl label -n "$KUBE_NAMESPACE" --overwrite "$name" app.kubernetes.io/managed-by=Helm
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done
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done
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# migrate each release
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- |
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for release in $releases; do
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echo "Migrating release: $release"
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helm3 2to3 convert --ignore-already-migrated --release-storage configmaps --tiller-out-cluster --tiller-ns "$TILLER_NAMESPACE" "$release"
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done
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.helm-2to3-cleanup:
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image: "${CI_TEMPLATE_REGISTRY_HOST}/gitlab-org/cluster-integration/helm-install-image/releases/helm-2to3-2.17.0-3.5.3-kube-1.16.15-alpine-3.12"
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stage: cleanup
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environment:
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action: prepare
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before_script:
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- export TILLER_NAMESPACE=$KUBE_NAMESPACE
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- export HELM_HOST="localhost:44134"
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- nohup tiller -listen "${HELM_HOST}" >tiller.log 2>&1 &
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- helm2 init --client-only
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script:
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- helm3 2to3 cleanup --skip-confirmation --release-storage configmaps --tiller-out-cluster --tiller-ns "$TILLER_NAMESPACE"
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.review:
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environment:
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name: review/$CI_COMMIT_REF_NAME
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rules:
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- if: '$MIGRATE_HELM_2TO3 != "true"'
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when: never
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- if: '($CI_KUBERNETES_ACTIVE == null || $CI_KUBERNETES_ACTIVE == "") && ($KUBECONFIG == null || $KUBECONFIG == "")'
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when: never
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- if: '$CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH'
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when: never
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- if: '$REVIEW_DISABLED'
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when: never
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- if: '$CI_COMMIT_TAG || $CI_COMMIT_BRANCH'
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when: manual
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review:helm-2to3:migrate:
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extends: [.review, .helm-2to3-migrate]
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review:helm-2to3:cleanup:
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extends: [.review, .helm-2to3-cleanup]
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rules:
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- if: '$MIGRATE_HELM_2TO3 != "true" && $CLEANUP_HELM_2TO3 == null'
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when: never
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- if: '($CI_KUBERNETES_ACTIVE == null || $CI_KUBERNETES_ACTIVE == "") && ($KUBECONFIG == null || $KUBECONFIG == "")'
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when: never
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- if: '$CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH'
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when: never
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- if: '$REVIEW_DISABLED'
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when: never
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- if: '$CI_COMMIT_TAG || $CI_COMMIT_BRANCH'
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when: manual
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.staging:
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environment:
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name: staging
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rules:
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- if: '$MIGRATE_HELM_2TO3 != "true"'
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when: never
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- if: '($CI_KUBERNETES_ACTIVE == null || $CI_KUBERNETES_ACTIVE == "") && ($KUBECONFIG == null || $KUBECONFIG == "")'
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when: never
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- if: '$CI_COMMIT_BRANCH != $CI_DEFAULT_BRANCH'
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when: never
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- if: '$STAGING_ENABLED'
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when: manual
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staging:helm-2to3:migrate:
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extends: [.staging, .helm-2to3-migrate]
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staging:helm-2to3:cleanup:
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extends: [.staging, .helm-2to3-cleanup]
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rules:
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- if: '$MIGRATE_HELM_2TO3 != "true" && $CLEANUP_HELM_2TO3 == null'
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when: never
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- if: '($CI_KUBERNETES_ACTIVE == null || $CI_KUBERNETES_ACTIVE == "") && ($KUBECONFIG == null || $KUBECONFIG == "")'
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when: never
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- if: '$CI_COMMIT_BRANCH != $CI_DEFAULT_BRANCH'
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when: never
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- if: '$STAGING_ENABLED'
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when: manual
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.production:
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environment:
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name: production
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rules:
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- if: '$MIGRATE_HELM_2TO3 != "true"'
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when: never
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- if: '($CI_KUBERNETES_ACTIVE == null || $CI_KUBERNETES_ACTIVE == "") && ($KUBECONFIG == null || $KUBECONFIG == "")'
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when: never
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- if: '$CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH'
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when: manual
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production:helm-2to3:migrate:
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extends: [.production, .helm-2to3-migrate]
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production:helm-2to3:cleanup:
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extends: [.production, .helm-2to3-cleanup]
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rules:
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- if: '$MIGRATE_HELM_2TO3 != "true" && $CLEANUP_HELM_2TO3 == null'
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when: never
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- if: '($CI_KUBERNETES_ACTIVE == null || $CI_KUBERNETES_ACTIVE == "") && ($KUBECONFIG == null || $KUBECONFIG == "")'
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when: never
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- if: '$CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH'
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when: manual
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