Docker production build optimizations

.github/workflows/release-docker.yml

@@ -5,31 +5,30 @@ on:
     types: [created]
 
 env:
-  DOCKER_USERNAME: ${{ secrets.DOCKER_USERNAME }}
-  DOCKER_PASSWORD: ${{ secrets.DOCKER_PASSWORD }}
+  DOCKER_CLI_EXPERIMENTAL: enabled
   IMAGE_NAME: decred/dcrdex
 
 jobs:
   build-and-push:
     runs-on: ubuntu-22.04
 
     steps:
-    - name: Checkout code
-      uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c #v3.3.0
-
-    - name: Set up Docker Buildx
-      run: |
-        docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
-        docker buildx create --use --name mybuilder
-        docker buildx inspect --bootstrap
-    - name: Log in to Docker 
-      run: |
-        docker login -u ${{ env.DOCKER_USERNAME }}  -p ${{ env.DOCKER_PASSWORD }}
-    - name: Build and Push Docker Image
-      run: |
-        docker buildx build  -f client/Dockerfile --platform linux/arm64,linux/amd64 \
-          --tag ${{ env.IMAGE_NAME }}:${{ github.ref_name }} \
-          --output "type=registry" .
-      env:
-        DOCKER_USERNAME: ${{ env.DOCKER_USERNAME }}
-        DOCKER_PASSWORD: ${{ env.DOCKER_PASSWORD }}
+      - name: Login to Docker Hub
+        run: echo "${{ secrets.DOCKER_PASSWORD }}" | docker login -u "${{ secrets.DOCKER_USERNAME }}" --password-stdin
+
+      - name: Checkout project
+        uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c #v3.3.0
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@e81a89b1732b9c48d79cd809d8d81d79c4647a18 #v2.1.0
+
+      - name: Setup Docker buildx action
+        uses: docker/setup-buildx-action@f03ac48505955848960e80bbb68046aa35c7b9e7 #v2.4.1
+
+      - name: Build and Push Docker Image
+        run: |
+          docker buildx build  \
+            -f client/Dockerfile.release \
+            --platform linux/arm64,linux/amd64 \
+            --tag ${{ env.IMAGE_NAME }}:${{ github.ref_name }} \
+            --output "type=registry" .

client/Dockerfile.release

@@ -0,0 +1,34 @@
+#
+# Build a release Docker image
+# This file is used to build production images off of a release-vx.x branch
+# where the site build is checked in.  (This allows for faster image builds.)
+#
+# $ docker build -t user/dcrdex -f client/Dockerfile.release .
+#
+# Create docker volume to store client data
+# $ docker volume create --name=dcrdex_data
+#
+# Run the docker image, mapping web access port.
+# $ docker run -d --rm -p 127.0.0.1:5758:5758 -v dcrdex_data:/dex/.dexc user/dcrdex
+#
+
+# dexc binary build
+FROM golang:1.20-alpine AS gobuilder
+WORKDIR /root/dex
+COPY . . 
+WORKDIR /root/dex/client/cmd/dexc/
+RUN CGO_ENABLED=0 GOOS=linux GO111MODULE=on go build
+WORKDIR /root/dex/client/cmd/dexcctl/
+RUN CGO_ENABLED=0 GOOS=linux GO111MODULE=on go build
+
+# Final image
+FROM debian:buster-slim
+RUN apt-get update && apt-get install -y ca-certificates
+WORKDIR /dex
+ENV HOME /dex
+RUN mkdir -p /dex/.dexc && chown 1000 /dex/.dexc
+USER 1000
+COPY --from=gobuilder /root/dex/client/cmd/dexc/dexc ./
+COPY --from=gobuilder /root/dex/client/cmd/dexcctl/dexcctl ./
+EXPOSE 5758
+CMD [ "./dexc", "--webaddr=0.0.0.0:5758" ]