Implement publish workflow to docker hub/ghcr via github actions

.github/workflows/docker-publish.yaml

@@ -0,0 +1,79 @@
+name: Publish Docker image
+
+on:
+  push:
+    branches:
+      - "develop"
+    tags:
+      - "*"
+
+env:
+  IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  push_to_registry:
+    name: Push Docker image to Docker Hub
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2.3.4
+        with:
+          submodules: recursive
+
+      - name: Cache Docker layers
+        uses: actions/cache@v2
+        with:
+          path: /tmp/.buildx-cache
+          key: ${{ runner.os }}-buildx-${{ github.sha }}
+          restore-keys: |
+            ${{ runner.os }}-buildx-
+
+      - name: Docker Setup Buildx
+        uses: docker/setup-buildx-action@v1.5.1
+        with:
+          driver: docker-container
+          driver-opts: |
+            image=moby/buildkit:master
+
+      - name: Docker Login
+        uses: docker/login-action@v1.10.0
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Docker Login
+        uses: docker/login-action@v1.10.0
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+
+      - name: Docker Metadata action
+        id: meta
+        uses: docker/metadata-action@v3.4.1
+        with:
+          images: |
+            otterscan/otterscan
+            ghcr.io/${{ env.IMAGE_NAME }}
+
+      - name: Build and push Docker images
+        uses: docker/build-push-action@v2.6.1
+        with:
+          context: .
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          cache-from: type=local,src=/tmp/.buildx-cache
+          cache-to: type=local,dest=/tmp/.buildx-cache-new
+
+        # Temp fix
+        # https://github.com/docker/build-push-action/issues/252
+        # https://github.com/moby/buildkit/issues/1896
+      - name: Move cache
+        run: |
+          rm -rf /tmp/.buildx-cache
+          mv /tmp/.buildx-cache-new /tmp/.buildx-cache