Merge pull request #104 from resgateio/feature/gh-92-scratch-docker-i…

…mage

Feature/gh 92 scratch docker image

Dockerfile

@@ -0,0 +1,12 @@
+FROM golang
+
+WORKDIR $GOPATH/src/github.com/resgateio/resgate
+COPY . .
+
+RUN go get -d -v
+RUN CGO_ENABLED=0 GO111MODULE=off go install -v -ldflags "-s -w"
+
+EXPOSE 8080
+
+ENTRYPOINT ["resgate"]
+CMD ["--help"]

docker/Dockerfile

@@ -0,0 +1,28 @@
+FROM golang:1.12.5-alpine3.9 as builder
+
+LABEL maintainer="Samuel Jirenius <samuel@jirenius.com>"
+
+WORKDIR $GOPATH/src/github.com/resgateio/resgate
+
+RUN apk update && apk add --no-cache git ca-certificates && update-ca-certificates
+RUN mkdir /user && \
+	echo 'nobody:x:65534:65534:nobody:/:' > /user/passwd && \
+	echo 'nobody:x:65534:' > /user/group
+
+COPY . .
+
+RUN go get -d -v
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 GO111MODULE=off go build -v -ldflags "-s -w" -o /resgate
+
+FROM scratch
+
+COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
+COPY --from=builder /user/group /user/passwd /etc/
+COPY --from=builder /resgate /resgate
+
+EXPOSE 8080
+
+USER nobody:nobody
+
+ENTRYPOINT ["/resgate"]
+CMD ["--config", "config.json"]

docker/Dockerfile.alpine

@@ -0,0 +1,23 @@
+FROM golang:1.12.5-alpine3.9 as builder
+
+LABEL maintainer="Samuel Jirenius <samuel@jirenius.com>"
+
+WORKDIR $GOPATH/src/github.com/resgateio/resgate
+
+RUN apk add --update git
+
+COPY . .
+
+RUN go get -d -v
+RUN GO111MODULE=off go build -v -ldflags "-s -w" -o /resgate
+
+FROM alpine:3.9
+
+RUN apk add --update ca-certificates
+
+COPY --from=builder /resgate /bin/resgate
+
+EXPOSE 8080
+
+ENTRYPOINT ["/bin/resgate"]
+CMD [""]

nats/nats.go

@@ -73,6 +73,8 @@ func (c *Client) Connect() error {
 	c.mu.Lock()
 	defer c.mu.Unlock()
 
+	c.Logf("Connecting to NATS at %s", c.URL)
+
 	// No reconnects as all resources are instantly stale anyhow
 	nc, err := nats.Connect(c.URL, nats.NoReconnect())
 	if err != nil {

server/mqClient.go

@@ -15,7 +15,6 @@ func (s *Service) initMQClient() {
 // startMQClients creates a connection to the messaging system.
 // Service.mu is held when called
 func (s *Service) startMQClient() error {
-	s.Logf("Connecting to messaging system")
 	if err := s.mq.Connect(); err != nil {
 		return err
 	}