build docker image the correct way lol

kujov · Feb 28, 2024 · 3f6e715 · 3f6e715
1 parent 8558e05
commit 3f6e715
Showing 1 changed file with 8 additions and 5 deletions.
diff --git a/Dockerfile b/Dockerfile
@@ -1,14 +1,17 @@
-FROM golang:1.21
+FROM golang:1.21 as builder
 
 WORKDIR /app
 
 COPY . .
 
-RUN go mod download
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -a -installsuffix cgo -o gosubscriber ./main.go
 
-EXPOSE 8080
+FROM debian:bullseye-slim
+
+WORKDIR /app
 
-RUN GOOS=linux GOARCH=amd64 go build -o ./gosubscriber ./main.go
+COPY --from=builder /app/gosubscriber .
 
+EXPOSE 8080
 
-CMD ["go", "run", "."]
+CMD ["./gosubscriber"]