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README.md

Create http server listening on unix sockets and systemd socket activated fds

Quick Usage

go get go.balki.me/anyhttp

Just replace http.ListenAndServe with anyhttp.ListenAndServe.

- http.ListenAndServe(addr, h)
+ anyhttp.ListenAndServe(addr, h)

Address Syntax

Unix socket

Syntax

unix/<path to socket>

Examples

unix/relative/path.sock
unix//var/run/app/absolutepath.sock

Systemd Socket activated fd:

Syntax

sysd/fdidx/<fd index starting at 0>
sysd/fdname/<fd name set using FileDescriptorName socket setting >

Examples:

# First (or only) socket fd passed to app
sysd/fdidx/0

# Socket with FileDescriptorName
sysd/fdname/myapp

# Using default name
sysd/fdname/myapp.socket

TCP port

If the address is a number less than 65536, it is assumed as a port and passed as http.ListenAndServe(":<port>",...) Anything else is directly passed to http.ListenAndServe as well. Below examples should work

:http
:8888
127.0.0.1:8080

Idle server auto shutdown

When using systemd socket activation, idle servers can be shut down to save on resources. They will be restarted with socket activation when new request arrives. Quick example for the case. (Error checking skipped for brevity)

addrType, httpServer, done, _ := anyhttp.Serve(addr, idle.WrapHandler(nil))
if addrType == anyhttp.SystemdFD {
    idle.Wait(30 * time.Minute)
    httpServer.Shutdown(context.TODO())
}
<-done

Documentation

https://pkg.go.dev/go.balki.me/anyhttp