generic Dockerfile.

Makefile

@@ -261,7 +261,7 @@ $(BINARY)_$(VERSION)-$(ITERATION)_armhf.deb: package_build_linux_armhf check_fpm
 		--chdir $<
 
 docker:
-	docker build -f init/docker/Dockerfile -t $(DHUSER)/$(BINARY) .
+	docker build -f init/docker/Dockerfile -t $(DHUSER)/$(BINARY):local .
 
 # Build an environment that can be packaged for linux.
 package_build_linux: readme man linux

init/docker/Dockerfile

@@ -1,22 +1,26 @@
 #
 # building static go binary with Debian golang container
 #
+ARG BINARY=unifi-poller
+ARG REPO=github.com/davidnewhall/${BINARY}
 
 FROM golang:stretch as builder
 ARG ARCH=amd64
 ARG OS=linux
+ARG BINARY
+ARG REPO
 
-RUN mkdir -p $GOPATH/pkg/mod $GOPATH/bin $GOPATH/src/github.com/davidnewhall
+RUN mkdir -p $GOPATH/pkg/mod $GOPATH/bin $GOPATH/src/${REPO}
 RUN apt-get update \
   && apt-get install -y curl  \
   && curl https://raw.githubusercontent.com/golang/dep/master/install.sh | sh
 
-COPY . $GOPATH/src/github.com/davidnewhall/unifi-poller
-WORKDIR $GOPATH/src/github.com/davidnewhall/unifi-poller
+COPY . $GOPATH/src/${REPO}
+WORKDIR $GOPATH/src/${REPO}
 
 RUN dep ensure --vendor-only \
-  && CGO_ENABLED=0 make unifi-poller.${ARCH}.${OS} \
-  && mv unifi-poller.${ARCH}.${OS} unifi-poller
+  && CGO_ENABLED=0 make ${BINARY}.${ARCH}.${OS} \
+  && mv ${BINARY}.${ARCH}.${OS} ${BINARY}
 
 #
 # creating container for run
@@ -28,9 +32,11 @@ RUN dep ensure --vendor-only \
 #
 
 FROM scratch
+ARG REPO
+ARG BINARY
 
-COPY --from=builder /go/src/github.com/davidnewhall/unifi-poller/unifi-poller /unifi-poller
-COPY --from=builder /go/src/github.com/davidnewhall/unifi-poller/examples/up.conf.example /etc/unifi-poller/up.conf
+COPY --from=builder /go/src/${REPO}/${BINARY} /${BINARY}
+COPY --from=builder /go/src/${REPO}/examples/up.conf.example /etc/${BINARY}/up.conf
 
-VOLUME [ "/etc/unifi-poller" ]
-ENTRYPOINT [ "/unifi-poller" ]
+VOLUME [ "/etc/${BINARY}" ]
+ENTRYPOINT [ "/${BINARY}" ]