Github Actions (#1)

- Update ci workflow
- Manage image tagging

Co-authored-by: Simon Hulme <[email protected]>

.github/workflows/github-actions.yml

@@ -1,14 +1,35 @@
+---
 name: ci
 
 on:
   push:
+    tags:
+      - 'v*.*.*'
+  pull_request:
     branches:
       - 'master'
 
 jobs:
   docker:
     runs-on: ubuntu-latest
     steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v2
+      -
+        name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v3
+        with:
+          # list of Docker images to use as base name for tags
+          images: |
+            uberjew666/kf2server
+            ghcr.io/uberjew666/kf2server
+          # generate Docker tags based on the following events/attributes
+          tags: |
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+            type=semver,pattern={{major}}
       -
         name: Set up QEMU
         uses: docker/setup-qemu-action@v1
@@ -17,14 +38,24 @@ jobs:
         uses: docker/setup-buildx-action@v1
       -
         name: Login to DockerHub
-        uses: docker/login-action@v1 
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v1
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
+      -
+        name: Login to GHCR
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v1
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
       -
         name: Build and push
-        id: docker_build
         uses: docker/build-push-action@v2
         with:
-          push: true
-          tags: uberjew666/kf2server:latest
+          context: .
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}