helm: Add job for linting helm charts

This job runs 'helm lint' on the user specified charts.

Change-Id: Ie6f39bab366b683e773add181de516c3ac913866

doc/source/helm-jobs.rst

@@ -3,3 +3,4 @@ Helm Jobs
 
 .. zuul:autojob:: apply-helm-charts
 .. zuul:autojob:: chart-testing-lint
+.. zuul:autojob:: helm-lint

doc/source/helm-roles.rst

@@ -5,3 +5,4 @@ Helm Roles
 .. zuul:autorole:: ensure-chart-testing
 .. zuul:autorole:: chart-testing
 .. zuul:autorole:: helm-template
+.. zuul:autorole:: helm-lint

playbooks/helm-lint/pre.yaml

@@ -0,0 +1,3 @@
+- hosts: all
+  roles:
+    - role: ensure-helm

playbooks/helm-lint/run.yaml

@@ -0,0 +1,10 @@
+- hosts: all
+  tasks:
+    - name: Lint helm charts
+      include_role:
+        name: helm-lint
+      vars:
+        helm_chart: "{{ zj_item }}"
+      loop: "{{ helm_charts }}"
+      loop_control:
+        loop_var: 'zj_item'

roles/helm-lint/README.rst

@@ -0,0 +1,13 @@
+Run Helm lint on a chart to verify correctness. It assumes that the Helm
+executable is installed.
+
+**Role Variables**
+
+.. zuul:rolevar:: helm_chart
+
+   Directory of the Helm chart.
+
+.. zuul:rolevar:: zuul_work_dir
+   :default: {{ zuul.project.src_dir }}
+
+   Directory in which to run helm.

roles/helm-lint/defaults/main.yaml

@@ -0,0 +1 @@
+zuul_work_dir: "{{ zuul.project.src_dir }}"

roles/helm-lint/tasks/main.yaml

@@ -0,0 +1,4 @@
+- name: Run lint
+  command: "helm lint {{ helm_chart }}"
+  args:
+    chdir: "{{ zuul_work_dir }}"

test-playbooks/helm-lint/create-helm-chart.yaml

@@ -0,0 +1,9 @@
+- hosts: all
+  roles:
+    - role: ensure-helm
+  tasks:
+    - name: Create helm chart
+      shell: |
+        helm create test-chart
+      args:
+        chdir: "{{ zuul.project.src_dir }}"

zuul-tests.d/helm-jobs.yaml

@@ -0,0 +1,131 @@
+- job:
+    name: zuul-jobs-test-helm-lint
+    description: Test the helm-lint job
+    parent: helm-lint
+    tags: all-platforms
+    files:
+      - playbooks/helm-lint/.*
+      - roles/helm-lint/.*
+      - roles/ensure-helm/.*
+    pre-run: test-playbooks/helm-lint/create-helm-chart.yaml
+    vars:
+      helm_version: 3.10.1
+      helm_charts: [test-chart]
+
+- job:
+    name: zuul-jobs-test-helm-lint-centos-7
+    description: Test the helm-lint job on centos-7
+    parent: zuul-jobs-test-helm-lint
+    tags: auto-generated
+    nodeset:
+      nodes:
+        - name: centos-7
+          label: centos-7
+
+- job:
+    name: zuul-jobs-test-helm-lint-centos-8-stream
+    description: Test the helm-lint job on centos-8-stream
+    parent: zuul-jobs-test-helm-lint
+    tags: auto-generated
+    nodeset:
+      nodes:
+        - name: centos-8-stream
+          label: centos-8-stream
+
+- job:
+    name: zuul-jobs-test-helm-lint-centos-9-stream
+    description: Test the helm-lint job on centos-9-stream
+    parent: zuul-jobs-test-helm-lint
+    tags: auto-generated
+    nodeset:
+      nodes:
+        - name: centos-9-stream
+          label: centos-9-stream
+
+- job:
+    name: zuul-jobs-test-helm-lint-debian-bullseye
+    description: Test the helm-lint job on debian-bullseye
+    parent: zuul-jobs-test-helm-lint
+    tags: auto-generated
+    nodeset:
+      nodes:
+        - name: debian-bullseye
+          label: debian-bullseye
+
+- job:
+    name: zuul-jobs-test-helm-lint-debian-buster
+    description: Test the helm-lint job on debian-buster
+    parent: zuul-jobs-test-helm-lint
+    tags: auto-generated
+    nodeset:
+      nodes:
+        - name: debian-buster
+          label: debian-buster
+
+- job:
+    name: zuul-jobs-test-helm-lint-fedora-36
+    description: Test the helm-lint job on fedora-36
+    parent: zuul-jobs-test-helm-lint
+    tags: auto-generated
+    nodeset:
+      nodes:
+        - name: fedora-36
+          label: fedora-36
+
+- job:
+    name: zuul-jobs-test-helm-lint-opensuse-15
+    description: Test the helm-lint job on opensuse-15
+    parent: zuul-jobs-test-helm-lint
+    tags: auto-generated
+    nodeset:
+      nodes:
+        - name: opensuse-15
+          label: opensuse-15
+
+- job:
+    name: zuul-jobs-test-helm-lint-ubuntu-bionic
+    description: Test the helm-lint job on ubuntu-bionic
+    parent: zuul-jobs-test-helm-lint
+    tags: auto-generated
+    nodeset:
+      nodes:
+        - name: ubuntu-bionic
+          label: ubuntu-bionic
+
+- job:
+    name: zuul-jobs-test-helm-lint-ubuntu-focal
+    description: Test the helm-lint job on ubuntu-focal
+    parent: zuul-jobs-test-helm-lint
+    tags: auto-generated
+    nodeset:
+      nodes:
+        - name: ubuntu-focal
+          label: ubuntu-focal
+
+- job:
+    name: zuul-jobs-test-helm-lint-ubuntu-jammy
+    description: Test the helm-lint job on ubuntu-jammy
+    parent: zuul-jobs-test-helm-lint
+    tags: auto-generated
+    nodeset:
+      nodes:
+        - name: ubuntu-jammy
+          label: ubuntu-jammy
+
+- project:
+    check:
+      jobs: &id001
+        - zuul-jobs-test-helm-lint-centos-7
+        - zuul-jobs-test-helm-lint-centos-8-stream
+        - zuul-jobs-test-helm-lint-centos-9-stream
+        - zuul-jobs-test-helm-lint-debian-bullseye
+        - zuul-jobs-test-helm-lint-debian-buster
+        - zuul-jobs-test-helm-lint-fedora-36
+        - zuul-jobs-test-helm-lint-opensuse-15
+        - zuul-jobs-test-helm-lint-ubuntu-bionic
+        - zuul-jobs-test-helm-lint-ubuntu-focal
+        - zuul-jobs-test-helm-lint-ubuntu-jammy
+    gate:
+      jobs: *id001
+    periodic-weekly:
+      jobs: *id001

zuul.d/helm-jobs.yaml

@@ -12,3 +12,10 @@
     pre-run: playbooks/helm/pre.yaml
     run: playbooks/helm/run.yaml
     post-run: playbooks/helm/post.yaml
+
+- job:
+    name: helm-lint
+    description: |
+      Run helm lint on a Helm chart
+    pre-run: playbooks/helm-lint/pre.yaml
+    run: playbooks/helm-lint/run.yaml