feat: publish docker images

.github/workflows/docker-image.yml

@@ -0,0 +1,50 @@
+name: ci
+
+on:
+  push:
+    branches:
+      - 'master'
+      - 'docker-images'
+    tags:
+      - '*.*.*'
+
+jobs:
+  docker:
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v2
+        submodules: 'true'
+      -
+        name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v3
+        with:
+          # list of Docker images to use as base name for tags
+          images: |
+            pokeapi/pokeapi
+      -
+        name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+      -
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+      -
+        name: Login to DockerHub
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v1 
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME_NARAMSIM }}
+          password: ${{ secrets.DOCKERHUB_TOKEN_NARAMSIM }}
+      -
+        name: Build and push
+        id: docker_build
+        uses: docker/build-push-action@v2
+        with:
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+      -
+        name: Image digest
+        run: echo ${{ steps.docker_build.outputs.digest }}