initial

.github/workflows/infra.yaml

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+name: Infrastructure
+on:
+  pull_request:
+    branches:
+      - main
+  push:
+    branches:
+      - main
+    tags:
+      - infra/**
+    paths:
+      - infra/**-playbook.yaml
+      - .github/workflows/infra.yaml
+
+jobs:
+  check:
+    name: Check infrastructure definitions
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Setup Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: "3.11"
+
+      - name: Install dependencies
+        run: -|
+          python3 -m venv venv
+          source venv/bin/activate
+          pip3 install -r requirements.txt
+          ansible-galaxy collection install community.general
+
+      - name: Get changed playbooks
+        id: changed-playbooks
+        uses: tj-actions/changed-files@v38
+        with:
+          files: infra/**-playbook.yaml
+
+      - name: Check modified playbooks
+        run: -|
+          for file in ${{ steps.changed-playbooks.outputs.all_changed_files }}; do
+            ansible --inventory ./inventory --check "$file"
+          done