---
variables:
  DEPLOYMENT_DOMAIN_NAME: example.com
  HELM_CHART_NAME: my-chart
  HELM_REPO_NAME: myrepo
  HELM_REPO_URL: https://charts.myrepo.com
  HELM_UPGRADE_EXTRA_ARGS: ""
  HELM_NAMESPACE: ${HELM_CHART_NAME}-${CI_ENVIRONMENT_SLUG}
  HELM_RELEASE: ${HELM_CHART_NAME}
  HELM_VALUES_FILE: values.yaml
  KUBE_CONTEXT: path/to/agent/repo:youragent-name

.helm:
  stage: deploy
  image: alpine/k8s:1.22.9
  before_script:
    - kubectl config get-contexts
    - kubectl config use-context ${KUBE_CONTEXT}

.helm:upgrade:
  extends: .helm
  environment:
    url: https://${CI_ENVIRONMENT_SLUG}.${DEPLOYMENT_DOMAIN}
  rules:
    - if: $CI_COMMIT_BRANCH
  script:
    - helm repo add ${HELM_REPO_NAME} ${HELM_REPO_URL}
    - helm upgrade --install ${HELM_RELEASE} ${HELM_REPO_NAME}/${HELM_CHART_NAME} --values ${HELM_VALUES_FILE} --create-namespace --namespace=${HELM_NAMESPACE} ${HELM_UPGRADE_EXTRA_ARGS}

.helm:uninstall:
  extends: .helm
  environment:
    action: stop
  script:
    - helm uninstall ${HELM_RELEASE}
  when: manual