Added Dockerfile Healthcheck (fix: #63)

Dockerfile.amd64

@@ -4,7 +4,7 @@ LABEL maintainer="Max Schmitt <max@schmitt.mx>"
 LABEL readme.md="https://github.com/maxibanki/golang-url-shortener/blob/master/README.md"
 LABEL description="This Dockerfile will install the Golang URL Shortener."
 
-RUN apk update && apk add ca-certificates
+RUN apk update && apk add ca-certificates curl
 
 EXPOSE 8080
 
@@ -12,4 +12,6 @@ COPY docker_releases/golang-url-shortener_linux_amd64/golang-url-shortener /
 
 VOLUME ["/data"]
 
+HEALTHCHECK --interval=30s CMD curl -f http://127.0.0.1:8080/api/v1/info || exit 1
+
 CMD ["/golang-url-shortener"]

Dockerfile.arm

@@ -4,7 +4,7 @@ LABEL maintainer="Max Schmitt <max@schmitt.mx>"
 LABEL readme.md="https://github.com/maxibanki/golang-url-shortener/blob/master/README.md"
 LABEL description="This Dockerfile will install the Golang URL Shortener."
 
-RUN apk update && apk add ca-certificates
+RUN apk update && apk add ca-certificates curl
 
 EXPOSE 8080
 
@@ -12,4 +12,6 @@ COPY docker_releases/golang-url-shortener_linux_arm/golang-url-shortener /
 
 VOLUME ["/data"]
 
+HEALTHCHECK --interval=30s CMD curl -f http://127.0.0.1:8080/api/v1/info || exit 1
+
 CMD ["/golang-url-shortener"]

Makefile

@@ -4,13 +4,13 @@ runUnitTests:
 	go test -v ./...
 
 buildNodeFrontend:
-	@cd static && yarn install
-	@cd static && yarn build
-	@cd static && rm build/static/**/*.map
+	cd static && yarn install
+	cd static && yarn build
+	cd static && rm build/static/**/*.map
 
 embedFrontend:
-	@cd handlers/tmpls && esc -o tmpls.go -pkg tmpls -include ^*\.html .
-	@cd handlers && esc -o static.go -pkg handlers -prefix ../static/build ../static/build
+	cd handlers/tmpls && esc -o tmpls.go -pkg tmpls -include ^*\.html .
+	cd handlers && esc -o static.go -pkg handlers -prefix ../static/build ../static/build
 	bash build/info.sh
 
 getCMDDependencies:
@@ -22,13 +22,15 @@ getGoDependencies:
 	go get -v ./...
 
 buildProject:
-	@mkdir releases
+	rm -rf releases 
+	mkdir releases
 	gox -output="releases/{{.Dir}}_{{.OS}}_{{.Arch}}/{{.Dir}}" -osarch="linux/amd64 linux/arm windows/amd64 windows/386"
 	find releases -maxdepth 1 -mindepth 1 -type d -exec cp build/config.yaml {} \;
 	find releases -maxdepth 1 -mindepth 1 -type d -exec tar -cvjf {}.tar.bz2 {} \;
 
 buildDockerImage:
-	@mkdir docker_releases
+	rm -rf docker_releases 
+	mkdir docker_releases
 	CGO_ENABLED=0 gox -output="docker_releases/{{.Dir}}_{{.OS}}_{{.Arch}}/{{.Dir}}" -osarch="linux/amd64 linux/arm"
 	docker build -t maxibanki/golang_url_shortener:arm -f Dockerfile.arm .
 	docker build -t maxibanki/golang_url_shortener -f Dockerfile.amd64 .