Pre-built docker image (#119)

Signed-off-by: Galo Navarro <anglorvaroa@gmail.com>

.github/workflows/release_dockerfile.yml

@@ -0,0 +1,33 @@
+name: Create and publish a Docker image
+
+on: 
+  workflow_dispatch:
+    inputs:
+      release_tag:
+        description: 'Tag to publish'
+        required: true
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  build-and-push-image:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@65b78e6e13532edd9afa3aa52ac7964289d1a9c1
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build and push image
+        run: |
+          docker build -t ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ inputs.release_tag}} -f Dockerfile.release .

Dockerfile.release

@@ -0,0 +1,12 @@
+FROM alpine:3.17.2
+
+LABEL "com.github.actions.name"="Condition-based Pull Request labeller" \
+    "com.github.actions.description"="Automatically label pull requests based on rules" \
+    "com.github.actions.icon"="award" \
+    "com.github.actions.color"="blue" \
+    "maintainer"="Galo Navarro <anglorvaroa@gmail.com>" \
+    "repository"="https://github.com/srvaroa/labeler"
+
+WORKDIR /
+ADD action /action
+ENTRYPOINT ["/action"]