add ci workflows

.github/workflows/build.yaml

@@ -0,0 +1,27 @@
+name: Build ROCK
+
+on:
+  workflow_call:
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    timeout-minutes: 15
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: Setup LXD
+        uses: canonical/setup-lxd@main
+      - name: Install dependencies
+        run: |
+          sudo snap install yq
+          sudo snap install rockcraft --classic
+      - name: Build ROCK
+        run: |
+          rockcraft pack
+      - name: Upload locally built ROCK artifact
+        uses: actions/upload-artifact@v3
+        with:
+          name: valkey-rock
+          path: charmed-valkey_*_amd64.rock

.github/workflows/release.yaml

@@ -0,0 +1,55 @@
+name: Publish to GHCR
+
+env:
+  RELEASE: edge
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  build:
+    uses: ./.github/workflows/build.yaml
+  publish:
+    needs: build
+    runs-on: ubuntu-latest
+    timeout-minutes: 15
+    permissions:
+      packages: write
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: Setup Docker
+        run: |
+          sudo snap install docker
+          sudo addgroup --system docker; sudo adduser $USER docker
+          newgrp docker
+          sudo snap disable docker; sudo snap enable docker
+      - name: Install skopeo
+        run: |
+          sudo snap install --devmode --channel edge skopeo
+      - name: Install yq
+        run: |
+          sudo snap install yq
+      - uses: actions/download-artifact@v3
+        with:
+          name: valkey-rock
+          path: .
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ secrets.GHCR_USER }}
+          password: ${{ secrets.GHCR_TOKEN }}
+      - name: Import and push to GHCR
+        run: |
+          version=$(yq '(.version|split("-"))[0]' rockcraft.yaml)
+          rock_image_version=$(yq '(.version)' rockcraft.yaml)
+          base=$(yq '(.base|split("@"))[1]' rockcraft.yaml)
+          tag=${version}-${base}-${{ env.RELEASE }}
+          echo "Publishing charmed-valkey:${tag}"
+          sudo skopeo --insecure-policy copy \
+            oci-archive:charmed-valkey_${rock_image_version}_amd64.rock \
+            docker-daemon:ghcr.io/canonical/charmed-valkey:${tag}
+          docker push ghcr.io/canonical/charmed-valkey:${tag}

rockcraft.yaml

@@ -17,7 +17,7 @@ platforms:  # The platforms this ROCK should be built on and run on
   amd64:
 
 services:
-  redis:
+  valkey:
     override: replace
     startup: enabled
     summary: Start Valkey