This is a simple example of using socket activation with systemd to serve a simple HTTP server on http://127.0.0.1:8076
To try it out
go get the httpserver and run it under the systemd-activate helper
export GOPATH="$PWD" go get github.com/coreos/go-systemd/examples/activation/httpserver /usr/lib/systemd/systemd-activate -l 127.0.0.1:8076 ./bin/httpserver
Then curl the URL and you will notice that it starts up:
curl 127.0.0.1:8076 hello socket activated world!