---
# yaml-language-server: $schema=https://taskfile.dev/schema.json
version: "3"

vars:
  # renovate: datasource=github-releases depName=prometheus-operator/prometheus-operator
  PROMETHEUS_OPERATOR_VERSION: "v0.70.0"

tasks:

  bootstrap:
    desc: Bootstrap Flux into a Kubernetes cluster
    cmds:
      # Install essential Prometheus Operator CRDs
      - kubectl apply --server-side --filename https://raw.githubusercontent.com/prometheus-operator/prometheus-operator/{{.PROMETHEUS_OPERATOR_VERSION}}/example/prometheus-operator-crd/monitoring.coreos.com_podmonitors.yaml
      - kubectl apply --server-side --filename https://raw.githubusercontent.com/prometheus-operator/prometheus-operator/{{.PROMETHEUS_OPERATOR_VERSION}}/example/prometheus-operator-crd/monitoring.coreos.com_prometheusrules.yaml
      - kubectl apply --server-side --filename https://raw.githubusercontent.com/prometheus-operator/prometheus-operator/{{.PROMETHEUS_OPERATOR_VERSION}}/example/prometheus-operator-crd/monitoring.coreos.com_scrapeconfigs.yaml
      - kubectl apply --server-side --filename https://raw.githubusercontent.com/prometheus-operator/prometheus-operator/{{.PROMETHEUS_OPERATOR_VERSION}}/example/prometheus-operator-crd/monitoring.coreos.com_servicemonitors.yaml
      # Install Flux
      - kubectl apply --server-side --kustomize {{.KUBERNETES_DIR}}/bootstrap
      # Install Secrets and Kustomizations
      - cat {{.ROOT_DIR}}/age.key | kubectl -n flux-system create secret generic sops-age --from-file=age.agekey=/dev/stdin
      - sops --decrypt {{.KUBERNETES_DIR}}/flux/vars/cluster-secrets.sops.yaml | kubectl apply --server-side --filename -
      - sops --decrypt {{.KUBERNETES_DIR}}/flux/vars/cluster-secrets-user.sops.yaml | kubectl apply --server-side --filename -
      - kubectl apply --server-side --filename {{.KUBERNETES_DIR}}/flux/vars/cluster-settings.yaml
      - kubectl apply --server-side --filename {{.KUBERNETES_DIR}}/flux/vars/cluster-settings-user.yaml
      - kubectl apply --server-side --kustomize {{.KUBERNETES_DIR}}/flux/config
    preconditions:
      - { msg: "Flux already appears installed", sh: "kubectl get namespace flux-system &>/dev/null && exit 1 || exit 0" }
      - { msg: "Age private key not found",      sh: "test -f {{.ROOT_DIR}}/age.key" }

  github-deploy-key:
    cmds:
      - sops --decrypt {{.KUBERNETES_DIR}}/bootstrap/github-deploy-key.sops.yaml | kubectl apply -f -
    preconditions:
      - { msg: "Flux is not installed", sh: "kubectl get namespace flux-system &>/dev/null && exit 0 || exit 1" }

  apply:
    desc: Apply a Flux Kustomization resource for a cluster
    summary: |
      Args:
        path: Path containing the Flux Kustomization resource (ks.yaml) (required)
        ns: Namespace the Flux Kustomization exists in (default: flux-system)
    cmd: |
      flux build ks $(basename {{.path}}) \
          --namespace {{.ns}} \
          --kustomization-file {{.KUBERNETES_DIR}}/apps/{{.path}}/ks.yaml \
          --path {{.KUBERNETES_DIR}}/apps/{{.path}} \
          {{- if contains "not found" .ks }}--dry-run \{{ end }}
      | \
      kubectl apply --server-side \
          --field-manager=kustomize-controller -f -
    vars:
      path: '{{ or .path (fail "Argument (path) is required") }}'
      ns: '{{.ns | default "flux-system"}}'
      ks:
        sh: flux --namespace {{.ns}} get kustomizations $(basename {{.path}}) 2>&1
    preconditions:
      - { msg: "Kustomization file not found", sh: "test -f {{.KUBERNETES_DIR}}/apps/{{.path}}/ks.yaml" }

  reconcile:
    desc: Force update Flux to pull in changes from your Git repository
    cmd: flux reconcile --namespace flux-system kustomization cluster --with-source