Dockerfile: tidying it up

Dockerfile

@@ -1,19 +1,22 @@
+# Stage - Build
 FROM golang:alpine as build-env
+
 LABEL MAINTAINER Naveen Kumar Sangi <naveenkumarsangi@protonmail.com>
 
 RUN apk --no-cache add git
-ENV SOURCE /go/src/gitlab.com/nkprince007/listen
-RUN mkdir -p $SOURCE
-ADD . $SOURCE
-WORKDIR $SOURCE
+RUN mkdir -p /go/src/gitlab.com/nkprince007/listen
+ADD . /go/src/gitlab.com/nkprince007/listen
+WORKDIR /go/src/gitlab.com/nkprince007/listen
+
 RUN go get -v ./...
-RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o app .
+RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -ldflags '-w -s' -o listen .
 
 
+# Stage - Deploy
 FROM alpine:latest
 
 RUN apk --no-cache add ca-certificates
-ENV SOURCE /go/src/gitlab.com/nkprince007/listen
 WORKDIR /root/
-COPY --from=build-env $SOURCE .
-CMD ["./app"]
+COPY --from=build-env /go/src/gitlab.com/nkprince007/listen .
+
+CMD ["./listen"]

docker-compose.yml

@@ -31,8 +31,8 @@ services:
       - RABBITMQ_DEFAULT_PASS=password
   listen:
     # listen is the actual listener service
-    command: /bin/sh -c "sleep 5; ./app;"
-    image: registry.gitlab.com/nkprince007/listen:latest
+    command: /bin/sh -c "sleep 5; ./listen;"
+    image: registry.gitlab.com/nkprince007/listen:docker
     ports:
       - 80
     environment: