service + httpserver + graceful shutdown

[dryaf]

Hi,

I'd like to use "service" with my webservice.
I use https://github.com/facebookgo/grace for graceful shutdown.
-> server waits until connections are closed so no data gets lost.

This only works when I change your code to not being async.

// Program structures.
//  Define Start and Stop methods.
type program struct {

}

func (p *program) Start(s service.Service) error {
        //go p.run()
    //return nil
    return gracehttp.Serve(e.Routes().Server("0.0.0.0:3000"))
}

func (p *program) Stop(s service.Service) error {
    // Any work in Stop should be quick, usually a few seconds at most.
    logger.Info("I'm Stopping!")
    return nil
}

Does it have to be async? Will I have problems using "service"?

best
ps: govendor is great! Saved my sanity today :)

[kardianos]

I integrated something similar for a PR for Caddy. However I've never looked closely at facebook's grace. It might be possible to integrate, but I'll need to look into how grace works. Feel free to also describe how it works too.

[kardianos]

I don't have time today to look into this, but you may be instersted in the Caddy patch which supported a hot reload: caddyserver/caddy#588

[dryaf]

Well I tested the code I posted here. And the gracefull shutdown works. Though maybe not being async in your code isn't a problem.