CI: Add a workflow to build images

.github/workflows/kolla-images.yml

@@ -0,0 +1,88 @@
+---
+name: Build kolla images
+on:
+  workflow_dispatch:
+    inputs:
+      regexes:
+        description: Space-separated list of regular expressions matching images to build
+        type: string
+        required: false
+        default: ""
+
+env:
+  ANSIBLE_FORCE_COLOR: True
+jobs:
+  build:
+    name: Build kolla images
+    runs-on: [self-hosted, stackhpc-kayobe-config-kolla-builder]
+    steps:
+      - uses: actions/checkout@master
+        with:
+          path: src/kayobe-config
+
+      - name: Clone StackHPC Kayobe repository
+        uses: actions/checkout@master
+        with:
+          repository: stackhpc/kayobe
+          ref: refs/heads/stackhpc/wallaby
+          path: src/kayobe
+
+      # FIXME: Failed in kolla-ansible : Ensure the latest version of pip is installed
+      - name: Install dependencies
+        run: |
+          sudo dnf -y install python3-virtualenv
+
+      - name: Setup networking
+        run: |
+          if ! ip l show breth1 >/dev/null 2>&1; then
+              sudo ip l add breth1 type bridge
+          fi
+          sudo ip l set breth1 up
+          if ! ip a show breth1 | grep 192.168.33.3/24; then
+              sudo ip a add 192.168.33.3/24 dev breth1
+          fi
+          if ! ip l show dummy1 >/dev/null 2>&1; then
+              sudo ip l add dummy1 type dummy
+          fi
+          sudo ip l set dummy1 up
+          sudo ip l set dummy1 master breth1
+
+      - name: Install Kayobe
+        run: |
+          mkdir -p venvs &&
+          pushd venvs &&
+          python3 -m venv kayobe &&
+          source kayobe/bin/activate &&
+          pip install -U pip &&
+          pip install ../src/kayobe
+
+      - name: Bootstrap the control host
+        run: |
+          source venvs/kayobe/bin/activate &&
+          source src/kayobe-config/kayobe-env --environment builder &&
+          kayobe control host bootstrap
+
+      - name: Configure the seed host
+        run: |
+          source venvs/kayobe/bin/activate &&
+          source src/kayobe-config/kayobe-env --environment builder &&
+          kayobe seed host configure
+        env:
+          KAYOBE_VAULT_PASSWORD: ${{ secrets.KAYOBE_VAULT_PASSWORD }}
+
+      - name: Build and push kolla overcloud images
+        run: |
+          source venvs/kayobe/bin/activate &&
+          source src/kayobe-config/kayobe-env --environment builder &&
+          kayobe overcloud container image build ${{ github.events.input.regexes }} --push
+        env:
+          KAYOBE_VAULT_PASSWORD: ${{ secrets.KAYOBE_VAULT_PASSWORD }}
+
+      - name: Get the container image tag
+        run: |
+          echo "::set-output name=kolla_tag::$(cat ~/kolla_tag)"
+        id: kolla_tag
+
+      - name: Display the container image tag
+        run: |
+          echo "${{ steps.kolla_tag.outputs.kolla_tag }}"