vscode go devcontainer example

.devcontainer.json

{
	"name": "Go",
	"build": {
		"dockerfile": "./Dockerfile",
		"context": "./",
		"target": "dev"
	},

	"forwardPorts": [3000],

	"settings": { 
		"terminal.integrated.shell.linux": "/bin/sh",
		"go.gopath": "/go",
		"go.useLanguageServer": true,
		"gopls": {
			"usePlaceholders": true
		},
		"files.eol": "\n"
	},
	
	"extensions": [
		"golang.Go",
		"2gua.rainbow-brackets",
		"oderwat.indent-rainbow"
	]
}

Dockerfile

FROM golang:1.15-alpine as dev

RUN apk add --no-cache git
WORKDIR /work

RUN go get github.com/uudashr/gopkgs/cmd/gopkgs \
    github.com/ramya-rao-a/go-outline \
    github.com/go-delve/delve/cmd/dlv \
    golang.org/x/lint/golint
RUN GO111MODULE=on go get golang.org/x/tools/gopls@master golang.org/x/tools@master