Improve Dockerfile

Dockerfile

@@ -1,8 +1,12 @@
-FROM golang:1.21-alpine
-WORKDIR /app
+FROM golang:1.21-alpine as builder
+WORKDIR /build
 COPY go.mod go.sum ./
 RUN go mod download
 COPY *.go ./
 RUN go build -o hardfiles main.go
+
+FROM golang:1.21-alpine as app
+WORKDIR /app
+COPY --from=builder /build/hardfiles .
 RUN mkdir files
 CMD ["./hardfiles"]

docker-compose.yml

@@ -2,6 +2,7 @@ services:
   hardfiles:
     container_name: hardfiles
     image: git.supernets.org/supernets/hardfiles:latest
+    build: .
     volumes:
       - "$PWD/files:/app/files"
       - "$PWD/www:/app/www"