Init build

.github/workflows/build.yml

@@ -0,0 +1,40 @@
+name: Build and Push Docker Image
+
+on:
+  push:
+    branches:
+      - main
+
+env:
+  IMAGE_NAME: ghcr.io/cloudacademy/lab-dev-env
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Set outputs
+        id: vars
+        run: echo "sha_short=$(git rev-parse --short HEAD)" >> $GITHUB_OUTPUT
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: Login to GHCR
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build and push
+        uses: docker/build-push-action@v4
+        with:
+          push: true
+          platforms: linux/amd64
+          tags: ${{ env.IMAGE_NAME }}:latest,${{ env.IMAGE_NAME }}:${{ steps.vars.outputs.sha_short }}