feat: add Dockerfile and build workflow (#23)

Author: morremeyer

.github/workflows/build.yml

@@ -0,0 +1,45 @@
+name: Build and release
+
+on:
+  push:
+    branches:
+      - "main"
+  pull_request:
+    branches:
+      - "main"
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  build-and-push-image:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+
+      - name: Log in to the Container registry
+        uses: docker/[email protected]
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/[email protected]
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+
+      - name: Build and push Docker image
+        uses: docker/[email protected]
+        with:
+          context: .
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}

Dockerfile

@@ -0,0 +1,19 @@
+# syntax=docker/dockerfile:1
+FROM golang:1.18-alpine as builder
+
+# needed for github.com/mattn/go-sqlite3
+RUN apk add --no-cache gcc g++
+
+WORKDIR /app
+COPY go.mod go.sum ./
+RUN go mod download
+
+COPY internal ./internal
+COPY main.go ./
+RUN go build -o /backend
+
+# Build final image
+FROM alpine:3.15.1
+WORKDIR /app
+COPY --from=builder /backend /app/backend
+ENTRYPOINT ["/app/backend"]

go.mod

@@ -37,3 +37,5 @@ require (
 	google.golang.org/protobuf v1.27.1 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 )
+
+replace github.com/envelope-zero/backend/internal/routing => ./internal/routing