Create http server listening on unix sockets and systemd socket activated fds
go get go.balki.me/anyhttp
Just replace http.ListenAndServe with anyhttp.ListenAndServe.
- http.ListenAndServe(addr, h)
+ anyhttp.ListenAndServe(addr, h)Syntax
unix/<path to socket>
Examples
unix/relative/path.sock
unix//var/run/app/absolutepath.sock
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
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
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