updating Dockerfile

Dockerfile

@@ -1,18 +1,28 @@
 FROM golang:1.16
 
-RUN mkdir $GOPATH/app
-WORKDIR $GOPATH/app
+RUN mkdir -p /app/janus
+WORKDIR /app/janus
+
+
+COPY go.mod .
+COPY go.sum .
+RUN go mod download
+
 COPY . .
-
-RUN go version
-RUN go env
-
-# Download all the dependencies
-RUN go get -d -v ./...
-
-# Install the package
-RUN go install -v ./...
+RUN go build -o ./out/janus .
 
 EXPOSE 8000
 
-CMD ["go", "run", "main.go"]
+CMD ["./out/janus"]
+
+# COPY . .
+#
+# # Download all the dependencies
+# RUN go get -d -v ./...
+#
+# # Install the package
+# RUN go install -v ./...
+#
+# EXPOSE 8000
+#
+# CMD ["go", "run", "main.go"]