docker api release

Author: vanetraj

.env

@@ -1 +1,3 @@
-PROJECT_PATH=github.com/vanetraj/go-api-quickstart
+GO_VERSION=latest
+PROJECT_PATH=github.com/vanetraj/go-api-quickstart
+PROJECT_NAME=go-api-quickstart

Dockerfile

@@ -1,5 +1,8 @@
 ARG GO_VERSION=latest
 
+#
+# dev image
+#
 FROM golang:${GO_VERSION} AS dev
 
 # Go dependency management tool 
@@ -8,6 +11,49 @@ RUN go get -u github.com/golang/dep/cmd/dep
 # Golang live reload and task runner
 RUN go get -u github.com/oxequa/realize
 
+
+#
+# builder image
+# 
+FROM golang:${GO_VERSION} as builder
+
+WORKDIR /go/src/project
+# Copy the current code into our workdir
+COPY . .
+
+# godep - dependency manager tool,
+RUN go get -u github.com/golang/dep/cmd/dep
+# Create a dep project, and run `ensure`, which will pull in all 
+# of the dependencies within this directory.
+RUN dep ensure -vendor-only
+# Build the binary, with a few flags which will allow
+# us to run this binary in Alpine. 
+RUN CGO_ENABLED=0 GOOS=linux go build  -o app -a -installsuffix cgo .
+
+# 
+# release image
+#
+FROM alpine:latest AS release
+
+# Security related package, good to have.
+RUN apk --no-cache add ca-certificates
+
+# Same as before, create a directory for our app.
+RUN mkdir /app
+WORKDIR /app
+
+# Here, instead of copying the binary from our host machine,
+# we pull the binary from the container named `builder`, within
+# this build context.
+COPY --from=builder /go/src/project/app .
+
+# Run the binary as per usual! This time with a binary build in a
+# separate container, with all of the correct dependencies and
+# run time libraries.
+CMD ["./app"]
+
+
+
 LABEL version="1.0" \
 	maintainer="[email protected]"
 

Makefile

@@ -0,0 +1,9 @@
+include .env
+
+build:
+	# docker build -t $(PROJECT_NAME) --target release .
+	docker-compose build --force-rm  api_release
+
+run:
+	# docker run $(PROJECT_NAME)
+	docker-compose run api_release

docker-compose.yml

@@ -4,11 +4,23 @@ services:
     build:
       context: .
       target: dev
+      args:
+        - GO_VERSION:${GO_VERSION}
     container_name: api
     volumes:
       - .:/go/src/${PROJECT_PATH}
     working_dir: /go/src/${PROJECT_PATH}
     command: realize start
     entrypoint: ./entrypoint.sh
+    ports:
+      - 8080:8080
+
+  api_release:
+    build:
+      context: .
+      target: release
+      args:
+        - GO_VERSION:${GO_VERSION}
+    image: ${PROJECT_NAME}
     ports:
       - 8080:8080