Update Dockerfile to use multi-stage build

This reduces the image size from 1.04GB to 31.3MB, which makes it easier to stay within cloud provider free tiers.
davidramiro · Jun 5, 2024 · 84eda73 · 84eda73
1 parent 397f972
commit 84eda73
Showing 1 changed file with 8 additions and 3 deletions.
diff --git a/Dockerfile b/Dockerfile
@@ -1,12 +1,17 @@
-FROM golang:1.22
+FROM golang:1.22 AS build-stage
 
-WORKDIR /app
 COPY go.mod go.sum ./
 RUN go mod download
 
 COPY . ./
 
 RUN CGO_ENABLED=0 GOOS=linux go build -o /frigabun
+
+FROM gcr.io/distroless/static-debian11 AS build-release-stage
+
+COPY --from=build-stage /frigabun /frigabun
+
+WORKDIR /app
 EXPOSE 9595
 
-CMD ["/frigabun"]
+CMD ["/frigabun"]