theshire/.taskfiles/talos/Taskfile.yaml

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

tasks:
  bootstrap:
    desc: Bootstrap Talos
    summary: |
      Args:
        cluster: Cluster to run command against (default: homelab)
        controller: Controller node to run command against (required) (IP/DNS)      
    prompt: Bootstrap Talos on the cluster... continue?
    cmds:
      - task: bootstrap-etcd
        vars: &vars
          cluster: '{{.cluster | default "homelab"}}'
          controller: "{{.controller}}"
      - task: fetch-kubeconfig
        vars: *vars
      - task: bootstrap-integrations
        vars: *vars
    requires:
      vars:
        - controller

  bootstrap-etcd:
    desc: Bootstrap Etcd
    cmd: until talosctl --context {{.cluster}} --nodes {{.controller}} bootstrap; do sleep 10; done
    requires:
      vars:
        - cluster
        - controller

  bootstrap-integrations:
    desc: Bootstrap core integrations needed for Talos
    cmds:
      - until kubectl --context {{.cluster}} wait --for=condition=Ready=False nodes --all --timeout=600s; do sleep 10; done
      - helmfile --kube-context {{.cluster}} --file {{.KUBERNETES_DIR}}/bootstrap/helmfile.yaml apply --skip-diff-on-install --suppress-diff
      - until kubectl --context {{.cluster}} wait --for=condition=Ready nodes --all --timeout=600s; do sleep 10; done
    requires:
      vars:
        - cluster
    preconditions:
      - which helmfile
      - sh: kubectl config get-contexts {{.cluster}}
        msg: "Kubectl context {{.cluster}} not found"
      - test -f {{.KUBERNETES_DIR}}/bootstrap/helmfile.yaml

  fetch-kubeconfig:
    desc: Fetch kubeconfig from Talos controllers
    vars:
      CONTROLPLANE_NODE:
        sh: |
          talosctl --context {{.cluster}} config info \
          | grep Endpoints: \
          | awk '{split($0,u," "); print u[2]}' \
          | sed -E 's/,//'          
    cmd: |
      talosctl --context {{.cluster}} kubeconfig --nodes {{.CONTROLPLANE_NODE}} \
          --force --force-context-name {{.cluster}} {{.ROOT_DIR}}/kubeconfig      
    requires:
      vars:
        - cluster
    preconditions:
      - talosctl config get-contexts | grep {{.cluster}}

  generate-clusterconfig:
    desc: Generate clusterconfig for Talos
    cmds:
      - talhelper genconfig
        --env-file {{.KUBERNETES_DIR}}/bootstrap/talos/talenv.sops.yaml
        --secret-file {{.KUBERNETES_DIR}}/bootstrap/talos/talsecret.sops.yaml
        --config-file {{.KUBERNETES_DIR}}/bootstrap/talos/talconfig.yaml
        --out-dir {{.KUBERNETES_DIR}}/bootstrap/talos/clusterconfig
    requires:
      vars:
        - cluster
    preconditions:
      - which talhelper
      - test -f {{.KUBERNETES_DIR}}/bootstrap/talos/talenv.sops.yaml
      - test -f {{.KUBERNETES_DIR}}/bootstrap/talos/talsecret.sops.yaml
      - test -f {{.KUBERNETES_DIR}}/bootstrap/talos/talconfig.yaml

  upgrade:
    desc: Upgrade Talos version for a node
    vars:
      TALOS_VERSION:
        sh: |
          yq -r ".talosVersion" {{.KUBERNETES_DIR}}/bootstrap/talos/talconfig.yaml          
      TALOS_IMAGE:
        sh: |
          talhelper genurl installer \
            --env-file {{.KUBERNETES_DIR}}/bootstrap/talos/talenv.sops.yaml \
            --config-file {{.KUBERNETES_DIR}}/bootstrap/talos/talconfig.yaml          
    cmds:
      - talosctl --context {{.cluster}} upgrade -n {{.node}} --image {{.TALOS_IMAGE }} --preserve # single node talos cluster needs to be preserved
    requires:
      vars:
        - cluster
        - node
    preconditions:
      - which talhelper
      - talosctl config get-contexts | grep {{.cluster}}
      - test -f {{.KUBERNETES_DIR}}/bootstrap/talos/talenv.sops.yaml
      - test -f {{.KUBERNETES_DIR}}/bootstrap/talos/talconfig.yaml
      - msg: "Talos image could not be determined for {{.node}}"
        sh: 'test -n "{{.TALOS_IMAGE}}"'

  upgrade-k8s:
    desc: Upgrade Kubernetes version for a Talos cluster
    vars:
      KUBERNETES_VERSION:
        sh: |
          yq -r ".kubernetesVersion" {{.KUBERNETES_DIR}}/bootstrap/talos/talconfig.yaml          
      CONTROLPLANE_NODE:
        sh: |
          talosctl --context homelab config info \
          | grep Endpoints: \
          | awk '{split($0,u," "); print u[2]}' \
          | sed -E 's/,//'          
    cmds:
      - talosctl upgrade-k8s -n {{.CONTROLPLANE_NODE}} --to {{.KUBERNETES_VERSION}}
    requires:
      vars:
        - cluster
    preconditions:
      - which talhelper
      - talosctl config get-contexts | grep {{.cluster}}
      - test -f {{.KUBERNETES_DIR}}/bootstrap/talos/talenv.sops.yaml
      - test -f {{.KUBERNETES_DIR}}/bootstrap/talos/talconfig.yaml
      - msg: "Kubernetes version could not be determined for cluster {{.cluster}}"
        sh: 'test -n "{{.KUBERNETES_VERSION}}"'
      - msg: "Control plane node could not be determined for cluster {{.cluster}}"
        sh: 'test -n "{{.CONTROLPLANE_NODE}}"'

  apply-clusterconfig:
    desc: Apply clusterconfig for a Talos cluster
    vars:
      CLUSTERCONFIG_FILES:
        sh: find {{.KUBERNETES_DIR}}/bootstrap/talos/clusterconfig -type f -name '*.yaml' -printf '%f\n'
    cmds:
      - for:
          var: CLUSTERCONFIG_FILES
        task: _apply-machineconfig
        vars:
          cluster: "{{ .cluster }}"
          filename: "{{.ITEM}}"
          hostname: |-
            {{ trimPrefix (printf "%s-" .cluster) .ITEM | trimSuffix ".yaml" }}            
          dry_run: "{{ .dry_run }}"
    requires:
      vars:
        - cluster
    preconditions:
      - talosctl config get-contexts | grep {{.cluster}}
      - test -d {{.KUBERNETES_DIR}}/bootstrap/talos/clusterconfig

  _apply-machineconfig:
    internal: true
    desc: Apply a single Talos machineConfig to a Talos node
    cmds:
      - talosctl --context {{.cluster}} apply-config
        --nodes "{{.hostname}}"
        --file "{{.KUBERNETES_DIR}}/bootstrap/talos/clusterconfig/{{.filename}}"
        {{ if eq "true" .dry_run }}--dry-run{{ end }}
    requires:
      vars:
        - cluster
        - hostname
        - filename
    preconditions:
      - talosctl config get-contexts | grep {{.cluster}}
      - test -f {{.KUBERNETES_DIR}}/bootstrap/talos/clusterconfig/{{.filename}}