CMD to ENTRYPOINT in docker (#85)

Fix for the Dockerfile using CMD. ENTRYPOINT is nicer.

Signed-off-by: Phil <phil@ucode.space>

Dockerfile

@@ -1,16 +1,25 @@
 FROM golang:alpine as builder
 
+# Install dependencies for copy
 RUN apk add -U --no-cache ca-certificates tzdata
 
+# Use an valid GOPATH and copy the files
 WORKDIR /go/src/github.com/cooperspencer/gickup
 COPY . .
 
+# Fetching dependencies and build the app
 RUN go get -d -v ./...
 RUN CGO_ENABLED=0 go build -a -installsuffix cgo -o app .
 
+# Use scratch as production environment -> Small builds
 FROM scratch as production
 WORKDIR /
+# Copy valid SSL certs from the builder for fetching github/gitlab/...
 COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
-COPY --from=builder /go/src/github.com/cooperspencer/gickup/app /gickup/app
+# Copy zoneinfo for getting the right cron timezone
 COPY --from=builder /usr/share/zoneinfo /usr/share/zoneinfo
-CMD ["./gickup/app"]
+# Copy the main executable from the builder
+COPY --from=builder /go/src/github.com/cooperspencer/gickup/app /gickup/app
+
+ENTRYPOINT [ "/gickup/app" ]
+CMD [ "/gickup/conf.yml" ]

docker-compose.yml

@@ -4,5 +4,5 @@ services:
     # build: . # If you want to Build the Image locally (You need the complete Repo on your PC)
     image: buddyspencer/gickup:latest
     volumes:
-      - ${PWD}/conf.yml:/gickup/conf.yml
-    command: ["./gickup/app", "/gickup/conf.yml"]
+      - ${PWD}/conf.yml:/gickup/conf.yml # Change the path of your local config ${PWD} is your current directory (where the docker-compose.yml is located)
+    command: ["/gickup/conf.yml"] # Changes the path of the internal bound config