Create docker-publish.yml

fix #43

.github/workflows/docker-publish.yml

@@ -0,0 +1,38 @@
+name: Publish Docker image
+
+on:
+  release:
+    types: [published]
+  workflow_dispatch:
+
+jobs:
+  push_to_registry:
+    name: Push Docker image to Docker Hub
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out the repo
+        uses: actions/checkout@v3
+
+      - name: Log in to Docker Hub
+        uses: docker/login-action@f054a8b539a109f9f41c372932f1ae047eff08c9
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@98669ae865ea3cffbcbaa878cf57c20bbf1c6c38
+        with:
+          images: ${{ github.repository }}
+
+      - name: Copy Dockerfile to the root of the repository
+        shell: bash
+        run: cp ./docker/Dockerfile .
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@ad44023a93711e3deb337508980b4b5e9bcdc5dc
+        with:
+          context: .
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}

docker/Dockerfile

@@ -1,9 +1,5 @@
 FROM node:14-alpine3.12
 
-# Read the GitHub API token and release version from --build-arg
-ARG GITHUB_API_TOKEN
-ARG VERSION
-
 # Install dependencies not included in the base image
 RUN apk update
 RUN apk upgrade
@@ -27,6 +23,6 @@ RUN chmod +x dist/bin/*
 RUN yarn link
 
 # Set the entrypoint and main command
-# Runs the bot by default, but CMD can be overriden when running a container so it runs the reactions monitor server
+# Runs the default Infura gateway, but CMD can be overriden when running a container so it runs the reactions monitor server
 ENTRYPOINT ["npx"]
 CMD ["w3gw-infura"]