SelfUpdate (Go)

A lightweight self-upgrading component for Go CLI/daemon apps.

Features

• Single binary supports self-upgrade
• Version check from HTTP (v-x.y.z)
• Locks to avoid systemd/supervisor restart conflict
• Configurable executable path and URLs
• Easy to import and use

Usage

up := selfupdate.New(selfupdate.Config{
	Version:        "v-1.0.0",
	CheckURL:       "http://localhost:8080/version.txt",
	UpgradeURL:     "http://localhost:8080/myapp",
	ExecutablePath: "/usr/local/bin/myapp",
	LockFile:       "/tmp/myapp.lock",
	Println:        fmt.Println,
})
up.MaybeUpgrade()

Example

go build -o myapp main.go
cp./myapp /usr/local/bin/myapp
cp./system/myapp.service /etc/systemd/system/
systemctl daemon-reexec
systemctl enable --now myapp.service

License

MIT