Add build rock and charm steps to CI

.github/workflows/pr.yml

@@ -6,6 +6,71 @@ env:
   SECRET_KEY: insecure_test_key
 
 jobs:
+  build-and-publish-image:
+    name: Build and Publish Image
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout Code
+        uses: actions/checkout@v3
+
+      - name: Use Node.js
+        uses: actions/setup-node@v3
+
+      - name: Build Assets
+        run: |
+          yarn install
+          yarn run build-css
+          yarn run build-js
+
+      - name: Install Rockcraft
+        run: sudo snap refresh rockcraft --classic --channel=edge/12f
+
+      - name: Install Charmcraft
+        run: sudo snap refresh charmcraft --classic --channel=edge/12f
+
+      - name: Build Rock Image
+        run: |
+          export ROCKCRAFT_ENABLE_EXPERIMENTAL_EXTENSIONS=true
+          rockcraft pack
+
+      - name: Publish Rock Image
+        run: >-
+          skopeo --insecure-policy copy
+          oci-archive:$(ls *.rock)
+          docker://ghcr.io/canonical/dqlite.io:$(git rev-parse --short HEAD)
+          --dest-creds "canonical:${{ secrets.GITHUB_TOKEN }}"
+
+  build-and-publish-charm:
+    name: Build Charm
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout Code
+        uses: actions/checkout@v3
+
+      - name: Use Node.js
+        uses: actions/setup-node@v3
+
+      - name: Build Assets
+        run: |
+          yarn install
+          yarn run build-css
+          yarn run build-js
+
+      - name: Install Charmcraft
+        run: sudo snap refresh charmcraft --classic --channel=edge/12f
+
+      - name: Build charm
+        run: cd charm/ && charmcraft pack
+
+      - name: Upload charm artifact
+        steps:
+        - uses: actions/upload-artifact@v4
+          with:
+            name: charm-${git rev-parse --short HEAD}.charm
+            path: ./*.charm
+
   run-dotrun:
     runs-on: ubuntu-latest