feat: Add GitHub Actions CI pipeline

Signed-off-by: Christoph Heiss <contact@christoph-heiss.at>

.github/workflows/build.yml

@@ -0,0 +1,63 @@
+name: Lint and build
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-node@v3
+        with:
+          node-version: 17
+      - run: npm clean-install
+      - run: npm run lint:types
+      - run: npm run lint:tsx
+      - run: npm run lint:scss
+
+  build:
+    needs: lint
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-node@v3
+        with:
+          node-version: 17
+      - run: npm clean-install
+
+      - uses: actions/cache@v2
+        with:
+          path: ${{ github.workspace }}/.next/cache
+          # Generate a new cache whenever packages or source files change.
+          key: ${{ runner.os }}-nextjs-${{ hashFiles('**/package-lock.json') }}-${{ hashFiles('**.[jt]s', '**.[jt]sx') }}
+          # If source files changed but packages didn't, rebuild from a prior cache.
+          restore-keys: |
+            ${{ runner.os }}-nextjs-${{ hashFiles('**/package-lock.json') }}-
+
+      - run: npm run build
+
+  docker-image:
+    needs: build
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - uses: docker/setup-buildx-action@v2
+
+      - uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - uses: docker/build-push-action@v3
+        with:
+          context: .
+          tags: |
+            ghcr.io/christoph-heiss/wgdash:latest
+          push: ${{ github.ref == 'refs/heads/main' }}
+          build-args: |
+            GIT_COMMIT_SHA=${{ github.sha }}