github: workflow reorg (#315)

.github/workflows/image-amazonlinux.yml

@@ -23,7 +23,7 @@ jobs:
       fail-fast: false
       matrix:
         release:
-          - 2 # Requires cgroups v1 for tests. They will pass on ubuntu-20.04 runner.
+          - 2  # Requires cgroups v1 for tests. They will pass on ubuntu-20.04 runner.
           - 2023
         variant:
           - default

.github/workflows/image-oracle.yml

@@ -23,7 +23,7 @@ jobs:
       fail-fast: false
       matrix:
         release:
-          - 7 # Requires cgroups v1 for tests. They will pass on ubuntu-20.04 runner.
+          - 7  # Requires cgroups v1 for tests. They will pass on ubuntu-20.04 runner.
           - 8
           - 9
         variant:

.github/workflows/lint.yml

@@ -0,0 +1,32 @@
+name: Lint
+on:
+  pull_request:
+    paths:
+      - '.github/workflows/**'
+
+permissions:
+  contents: read
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}-${{ github.event_name }}
+  cancel-in-progress: true
+
+defaults:
+  run:
+    # Make sure bash is always invoked with `-eo pipefail`
+    # https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idstepsshell
+    shell: bash
+
+jobs:
+  lint-tests:
+    name: Lint
+    runs-on: ubuntu-24.04
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: yamllint
+        uses: ibiqlik/action-yamllint@v3
+        with:
+          file_or_dir: .github/workflows/
+          strict: true

.github/workflows/tests.yml

@@ -1,6 +1,5 @@
 name: Tests
 on:
-  push:
   pull_request:
     paths:
       - '.github/**'
@@ -56,11 +55,6 @@ jobs:
           # A non-shallow clone is needed for the Differential ShellCheck
           fetch-depth: 0
 
-      - name: yamllint
-        uses: ibiqlik/action-yamllint@v3
-        with:
-          file_or_dir: .github/workflows/
-
       - id: ShellCheck
         name: Differential ShellCheck
         uses: redhat-plumbers-in-action/differential-shellcheck@v5