supervisor supervises a single process.
It ensures to preserve the same PID of that process through any arbitrary
number of restarts, executable upgrades, and crashes.
- preserves the supervisor-PID over your application for easy tooling with init systems
- keeps track application PID changes by using Linux Control Groups (cgroups).
- restarts your application on crashes
- minimalisticly not overbloated with unnecessary features
supervisor -- /usr/sbin/x0d -X -f /etc/xzero/x0d.conf supervisor -- /usr/bin/haproxy -f /etc/haproxy/haproxy.cfg
supervisor: a process supervising tool (c) 2009-2014 Christian Parpart <firstname.lastname@example.org> usage: supervisor [supervisor options] -- /path/to/app [app options ...] options: -f,--fork fork supervisor into background -p,--pidfile=PATH location to store the current supervisor PID -u,--user=NAME drops application user-privileges -g,--group=NAME drops application group-privileges -l,--delay-limit=N maximum delay to sleep between restarts  -e,--restart-on-error Restart the application also on normal termination but with an exit code != 0. -c,--restart-on-crash restart application on crash (SIGSEGV) -q,--quiet decreases verbosity level, use -qq to void runtime errors too -v,--version Prints program version number and exits -h,--help Prints this help and exits. Examples: supervisor -c -- /usr/sbin/x0d supervisor -p /var/run/xzero/supervisor.pid -- /usr/sbin/x0d \ --no-fork
- The project is still pretty young, so expect things to break.
- Application PID tracking via
supervisorto run as root. But that's not a problem for now as the application is meant to drop root (or get dropped) anyways.
Copyright (c) 2009-2014 Christian Parpart <email@example.com> Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.