chore: initialize proof of concept

build/Dockerfile.dev

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+FROM golang:1.11.1-alpine3.8
+
+# install git, curl and realize
+RUN apk add --no-cache git curl && \
+  go get -u github.com/tockins/realize && \
+  go get -u github.com/derekparker/delve/cmd/dlv

docker-compose.yml

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+version: "3.5"
+
+services:
+
+  post:
+    build:
+      context: ./
+      dockerfile: ./build/Dockerfile.dev
+    volumes:
+      - ./services/post:/src/go
+      - $GOPATH/pkg/mod:/go/pkg/mod
+    working_dir: /src/go
+    command: go run main.go
+
+  user:
+    build:
+      context: ./
+      dockerfile: ./build/Dockerfile.dev
+    volumes:
+      - ./services/user:/src/go
+      - $GOPATH/pkg/mod:/go/pkg/mod
+    working_dir: /src/go
+    command: go run main.go

go.mod

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+module github.com/notsu/gomono

services/post/go.mod

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+module github.com/notsu/gomono/services/post

services/post/hello/hello.go

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+package hello
+
+// Hello to another services
+func Hello() string {
+	return "Hello, World"
+}

services/post/main.go

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+package main
+
+import "fmt"
+
+func main() {
+	fmt.Println("Hello from POST")
+}

services/user/go.mod

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+module github.com/notsu/gomono/services/user

services/user/main.go

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+package main
+
+import (
+	"fmt"
+
+	hello "github.com/notsu/gomono/services/post/hello"
+)
+
+func main() {
+	fmt.Println("Hello from USER")
+	fmt.Println(hello.Hello())
+}