build: add workflows

.github/workflows/build-check.yml

@@ -0,0 +1,25 @@
+name: Build Docker Image (Check)
+
+on:
+  # trigger on any pull requests
+  pull_request:
+    branches:
+      - "**"
+concurrency:
+  group: ${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: "Checkout"
+        uses: actions/checkout@v3
+
+      - name: "Docker: Build and Push Image"
+        id: ghcr-docker
+        uses: 'penguin-statistics/actions/ghcr-docker@main'
+        with:
+          version: '__check__'
+          repository: 'penguin-statistics/gopkgserver'
+          push: false

.github/workflows/build-release.yml

@@ -0,0 +1,39 @@
+name: Build Docker Image (Release)
+
+on:
+  push:
+    # trigger on version tag push
+    tags:
+      - "v*"
+
+concurrency:
+  group: ${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: "Checkout"
+        uses: actions/checkout@v3
+
+      - name: "Metadata: Git"
+        id: git-meta
+        uses: 'penguin-statistics/actions/git-meta@main'
+
+      - name: "Docker: Build and Push Image"
+        id: ghcr-docker
+        uses: 'penguin-statistics/actions/ghcr-docker@main'
+        with:
+          version: ${{ steps.git-meta.outputs.version }}
+          repository: 'penguin-statistics/gopkgserver'
+
+      - name: "Release: Call Dispatcher"
+        id: release-dispatcher
+        uses: 'penguin-statistics/actions/release-dispatcher@main'
+        with:
+          version: ${{ steps.git-meta.outputs.version }}
+          use-ghrelease: true
+          # use-manifestbot: true
+          # manifestbot-file-path: 'applications/gopkgserver/values-prod.yaml'
+          # manifestbot-token: ${{ secrets.PAT_FOR_MANIFESTBOT }}