socket-event(8) System Manager's Manual socket-event(8)
NAME
socket - event signalling that a socket connection has been made
SYNOPSIS
socket PROTO=PROTO PORT=PORT ADDR=ADDR
socket PROTO=PROTO PATH=PATH
DESCRIPTION
The socket event is generated by the upstart-socket-bridge(8) daemon when a socket connection is made whose details match the socket event
condition and environment specified in a jobs start on or stop on stanza.
When an incoming connection is detected, the file descriptor representing the socket is passed to the job in question to allow it to
accept(2) the connection. Additionally, the environment variable UPSTART_JOB will contain the name of the event ("socket") and the environ-
ment variable UPSTART_FDS will contain the number of the file descriptor corresponding to the listening socket.
EXAMPLES
Internet socket
Start web server when first client connects from localhost:
start on socket PROTO=inet PORT=80 ADDR=127.0.0.1
Local socket
start on socket PROTO=unix PATH=/var/run/.s.pgsql.1234
Abstract socket
start on socket PROTO=unix PATH=@/at/upstart/example
AUTHOR
Written by Scott James Remnant <scott@netsplit.com>
Manual page written by James Hunt <james.hunt@ubuntu.com>
BUGS
Report bugs at <https://launchpad.net/upstart/+bugs>
COPYRIGHT
Copyright (C) 2011 Canonical Ltd.
This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU-
LAR PURPOSE.
SEE ALSO
init(5) init(8) socket(2) socket(7) upstart-socket-bridge(8)
upstart 2011-03-08 socket-event(8)
