build: add Docker support with CI/CD pipeline (#54)

- Add a Dockerfile for building a Docker image
- Add a GitHub Actions workflow for building and pushing Docker image to Docker Hub and GitHub Container Registry
- Modify Makefile to include build targets for different architecture

.github/workflows/docker.yml

@@ -0,0 +1,77 @@
+name: Docker Image
+
+on:
+  push:
+    branches:
+      - main
+    tags:
+      - 'v*'
+  pull_request:
+    branches:
+      - 'main'
+
+jobs:
+  build-docker:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Setup go
+        uses: actions/setup-go@v4
+        with:
+          go-version: '^1'
+      - name: Checkout repository
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - name: Build binary
+        run : |
+          make build_linux_amd64
+          make build_linux_arm
+          make build_linux_arm64
+      -
+        name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+
+      -
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      -
+        name: Login to Docker Hub
+        uses: docker/login-action@v2
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      -
+        name: Login to GitHub Container Registry
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      -
+        name: Docker meta
+        id: docker-meta
+        uses: docker/metadata-action@v4
+        with:
+          images: |
+            ${{ github.repository }}
+            ghcr.io/${{ github.repository }}
+          tags: |
+            type=raw,value=latest,enable={{is_default_branch}}
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+            type=semver,pattern={{major}}
+
+      -
+        name: Build and push
+        uses: docker/build-push-action@v4
+        with:
+          context: .
+          platforms: linux/amd64,linux/arm,linux/arm64
+          file: docker/Dockerfile
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.docker-meta.outputs.tags }}
+          labels: ${{ steps.docker-meta.outputs.labels }}

Makefile

@@ -27,3 +27,12 @@ install: $(GOFILES)
 
 test:
 	@$(GO) test -v -cover -coverprofile coverage.txt ./... && echo "\n==>\033[32m Ok\033[m\n" || exit 1
+
+build_linux_amd64:
+	CGO_ENABLED=0 GOOS=linux GOARCH=amd64 $(GO) build -a -tags '$(TAGS)' -ldflags '$(EXTLDFLAGS)-s -w $(LDFLAGS)' -o release/linux/amd64/$(EXECUTABLE)
+
+build_linux_arm64:
+	CGO_ENABLED=0 GOOS=linux GOARCH=arm64 $(GO) build -a -tags '$(TAGS)' -ldflags '$(EXTLDFLAGS)-s -w $(LDFLAGS)' -o release/linux/arm64/$(EXECUTABLE)
+
+build_linux_arm:
+	CGO_ENABLED=0 GOOS=linux GOARCH=arm GOARM=7 $(GO) build -a -tags '$(TAGS)' -ldflags '$(EXTLDFLAGS)-s -w $(LDFLAGS)' -o release/linux/arm/$(EXECUTABLE)

docker/Dockerfile

@@ -0,0 +1,20 @@
+FROM alpine:3.17
+
+ARG TARGETOS
+ARG TARGETARCH
+
+LABEL maintainer="Bo-Yi Wu <appleboy.tw@gmail.com>" \
+  org.label-schema.name="CodeGPT" \
+  org.label-schema.vendor="Bo-Yi Wu" \
+  org.label-schema.schema-version="1.0"
+
+LABEL org.opencontainers.image.source=/~https://github.com/appleboy/CodeGPT
+LABEL org.opencontainers.image.description="A CLI written in Go language that writes git commit messages or do a code review brief for you using ChatGPT AI."
+LABEL org.opencontainers.image.licenses=MIT
+
+RUN apk add --no-cache ca-certificates git && \
+  rm -rf /var/cache/apk/*
+
+COPY release/${TARGETOS}/${TARGETARCH}/codegpt /bin/
+
+CMD ["/bin/codegpt"]