🏭️ Set up automated builds

.github/workflows/automated-build.yaml

@@ -0,0 +1,46 @@
+name: Automated Build
+
+on:
+  push:
+    branches:
+      - main
+
+env:
+  DOCKER_BUILDKIT: 1
+
+jobs:
+  push:
+
+    runs-on: ubuntu-latest
+    if: github.event_name == 'push'
+
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - 
+        uses: actions/checkout@v3
+
+      -
+        name: Log into GitHub Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ github.token }}
+
+      -
+        uses: docker/setup-qemu-action@v3
+
+      #-
+      #  uses: docker/setup-buildx-action@v3
+
+      -
+        name: hasher
+        uses: docker/build-push-action@v5
+        with:
+          context: "{{defaultContext}}:hasher"
+          platforms: linux/amd64 #,linux/arm64,linux/arm/v7
+          push: true
+          tags: ghcr.io/jpetazzo/dockercoins/hasher:v0.1

hasher/Dockerfile

@@ -1,6 +1,6 @@
 FROM ruby:alpine
 RUN apk add --update build-base curl
-RUN gem install sinatra --version `~> 3`
+RUN gem install sinatra --version '~> 3'
 RUN gem install thin
 ADD hasher.rb /
 CMD ["ruby", "hasher.rb"]