issue#19 recompile service on file change

Updated web-app and web-api to auto build the service when running with
docker-compose.

cmd/web-api/Dockerfile

@@ -29,8 +29,9 @@ ENV GO111MODULE="on"
 COPY go.mod .
 COPY go.sum .
 RUN go mod download
+RUN go get github.com/pilu/fresh
 
-FROM build_base_golang AS builder
+FROM build_base_golang AS dev
 
 ARG service
 ARG commit_ref=-
@@ -40,20 +41,24 @@ ARG swagInit
 COPY internal ./internal
 
 # Copy cmd specific packages.
-COPY cmd/${service} ./cmd/web-api
+COPY cmd/${service} ./cmd/${service}
 COPY cmd/${service}/templates /templates
 #COPY cmd/${service}/static /static
 
 # Copy the global templates.
 ADD resources/templates/shared /templates/shared
+ADD fresh-auto-reload.conf /runner.conf
 
 WORKDIR ./cmd/${service}
 
+ENTRYPOINT ["fresh", "-c", "/runner.conf"]
+
+FROM dev AS builder
+
 # Update the API documentation.
 # Disabled for the moment as it takes forever to run, rely on manual execution.
 RUN if [ "$swagInit" != "" ]; then swag init ; fi
 
-
 RUN CGO_ENABLED=0 GOOS=linux go build -ldflags "-X main.build=${commit_ref}" -a -installsuffix nocgo -o /gosrv .
 
 FROM alpine:3.9