Update Dockerfile

Dockerfile

@@ -1,28 +1,36 @@
-ARG name="email-collector"
-ARG repo="github.com/productionwentdown/${name}"
+FROM golang:1.10-alpine as build
 
+# args
+ARG version="1.0.0"
+ARG repo="github.com/productionwentdown/email-collector"
 
-FROM golang:1.10-alpine as go
-
+# dependencies
 RUN apk add --no-cache ca-certificates
-ARG name
-ARG repo
 
-WORKDIR /go/src/${repo}
+# source
+WORKDIR $GOPATH/src/${repo}
 COPY . .
+
+# build
 ENV CGO_ENABLED=0
 ENV GOOS=linux
 ENV GOARCH=amd64
-RUN go build -ldflags '-extldflags "-static"' -o ${name}
+RUN go build -ldflags "-s -w" -o /email-collector
 
 
 FROM scratch
 
-ARG name
-ARG repo
+ARG version
+
+# labels
+LABEL org.label-schema.vcs-url="https://github.com/productionwentdown/email-collector"
+LABEL org.label-schema.version=${version}
+LABEL org.label-schema.schema-version="1.0"
+
+# copy binary and ca certs
+COPY --from=build /email-collector /email-collector
+COPY --from=build /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt
 
 EXPOSE 8080
-COPY --from=go /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt
-COPY --from=go /go/src/${repo}/${name} /${name}
 
 ENTRYPOINT ["/email-collector"]