Automate multi arch builds on GitHub Actions (#65)

.github/workflows/on-master-push.yml

@@ -0,0 +1,39 @@
+name: Build on master push
+
+on:
+  push:
+    branches:
+      - master
+
+env:
+  DOCKER_CLI_EXPERIMENTAL: enabled
+
+jobs:
+  build:
+    name: Build Docker image
+    runs-on: ubuntu-18.04
+    env:
+      VERSION: 1.16.0
+    steps:
+      - name: Login to Docker Hub
+        run: echo "${{ secrets.DOCKER_PASSWORD }}" | docker login -u lukechilds --password-stdin
+
+      - name: Checkout project
+        uses: actions/checkout@v2
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+        id: qemu
+
+      - name: Setup Docker buildx action
+        uses: docker/setup-buildx-action@v1
+        id: buildx
+
+      - name: Run Docker buildx
+        run: |
+          docker buildx build \
+          --platform linux/amd64,linux/arm64 \
+          --build-arg VERSION=$VERSION \
+          --tag lukechilds/electrumx:v$VERSION \
+          --tag lukechilds/electrumx:latest \
+          --output "type=registry" .

.travis.yml

@@ -1,7 +0,0 @@
-sudo: required
-services:
-  - docker
-script: docker build -t electrumx .
-notifications:
-  email:
-    on_success: never

Dockerfile

@@ -1,11 +1,13 @@
+ARG VERSION=1.16.0
+
 FROM python:3.7-alpine3.11
 LABEL maintainer="Luke Childs <lukechilds123@gmail.com>"
 
+ARG VERSION
+
 COPY ./bin /usr/local/bin
-COPY ./VERSION /tmp
 
-RUN VERSION=$(cat /tmp/VERSION) && \
-    chmod a+x /usr/local/bin/* && \
+RUN chmod a+x /usr/local/bin/* && \
     apk add --no-cache git build-base openssl && \
     apk add --no-cache --repository http://dl-cdn.alpinelinux.org/alpine/v3.11/main leveldb-dev && \
     apk add --no-cache --repository http://dl-cdn.alpinelinux.org/alpine/edge/testing rocksdb-dev && \

VERSION

@@ -1 +0,0 @@
-1.16.0