created gh actions simple file

Author: nvo87

.github/workflows/ci.yml

@@ -0,0 +1,35 @@
+name: ci
+
+on: push
+
+jobs:
+  docker:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Read image identifiers
+        id: image
+        uses: ASzc/change-string-case-action@v1
+        with:
+          string: ${{ github.repository }}
+
+      - name: Build and push
+        uses: docker/build-push-action@v3
+        with:
+          push: true
+          tags: |
+            ghcr.io/${{ steps.image.outputs.lowercase }}:latest
+            ghcr.io/${{ steps.image.outputs.lowercase }}:${{ github.sha }}
+