go/.devcontainer/devcontainer.json

{
	"name": "Go Sample",
	"dockerFile": "Dockerfile",
	"runArgs": [ "--cap-add=SYS_PTRACE", "--security-opt", "seccomp=unconfined" ],

	// Use 'appPort' to create a container with published ports. If the port isn't working, be sure
	// your server accepts connections from all interfaces (0.0.0.0 or '*'), not just localhost.
	"appPort": [9000],

	// Use 'settings' to set *default* container specific settings.json values on container create. 
	// You can edit these settings after create using File > Preferences > Settings > Remote.
	"settings": { 
		"terminal.integrated.shell.linux": "/bin/bash",
		"go.gopath": "/go",
		"go.inferGopath": true,
		"go.useLanguageServer": true
	},

	// Uncomment the next line to run commands after the container is created.
	// "postCreateCommand": "go version",

	// Comment out the next line to run as root
	"remoteUser": "vscode",

	// Add the IDs of extensions you want installed when the container is created in the array below.
	"extensions": [
		"ms-vscode.go"
	]
}