ci: add release_build

.github/workflows/release_build.yml

@@ -0,0 +1,44 @@
+name: release_build
+
+on:
+  push:
+    tags:
+      - "v*.*.*"
+
+jobs:
+  docker:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v4
+        with:
+          # list of Docker images to use as base name for tags
+          images: |
+            julesmike/chatter
+          # generate Docker tags based on the following events/attributes
+          tags: |
+            type=semver,pattern=v{{version}}
+            type=semver,pattern=v{{major}}.{{minor}}
+            type=semver,pattern=v{{major}}
+      - 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: Build and push
+        uses: docker/build-push-action@v3
+        with:
+          context: .
+          platforms: linux/amd64,linux/arm64
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max

Dockerfile

@@ -0,0 +1,36 @@
+FROM --platform=$BUILDPLATFORM golang:1.21-alpine AS builder
+
+ARG TARGETPLATFORM
+ARG BUILDPLATFORM
+ARG TARGETOS
+ARG TARGETARCH
+
+# Add git, curl and upx support
+RUN apk add --no-cache git curl upx ca-certificates 
+
+WORKDIR /src
+
+# Pull modules
+COPY go.* ./
+RUN go mod download
+
+# Copy code into image
+COPY . ./
+
+# Build application for deployment
+RUN --mount=type=cache,target=/root/.cache/go-build \
+  --mount=type=cache,target=/go/pkg \
+  CGO_ENABLED=0 GOOS=$TARGETOS GOARCH=$TARGETARCH go build -trimpath -ldflags '-s -w' -o /tmp/chatter .
+
+# Compress binary
+RUN upx --best --lzma /tmp/chatter
+
+# Create minimal image
+FROM --platform=$TARGETPLATFORM gcr.io/distroless/base
+
+# Add the binary
+COPY --from=builder /tmp/chatter /chatter
+
+EXPOSE 80/tcp
+
+ENTRYPOINT ["/chatter"]