birdhousebuilder.recipe.supervisor

Introduction

birdhousebuilder.recipe.supervisor is a Buildout recipe to configure Supervisor services with Anaconda. This recipe is used by the Birdhouse project.

Usage

The recipe requires that Anaconda is already installed. You can use the buildout option anaconda-home to set the prefix for the anaconda installation. Otherwise the environment variable CONDA_PREFIX (variable is set when activating a conda environment) is used as conda prefix.

The recipe will install the supervisor package from a conda channel in a conda environment defined by CONDA_PREFIX. It deploys a supervisor configuration for a given service. The intallation folder is given by the prefix buildout option. The configuration will be deployed in the birdhouse enviroment ${prefix}/etc/supervisor/conf.d/myapp.conf. Supervisor can be started with ${prefix}/etc/init.d/supervisord start.

The recipe depends on birdhousebuilder.recipe.conda and zc.recipe.deployment.

Supported options

This recipe supports the following options:

anaconda-home

Buildout option pointing to the root folder of the Anaconda installation. Default: $HOME/anaconda.

Buildout options for supervisord:

supervisor-port

Buildout option to set the supervisor port. Default is 9001.

supervisor-host

Buildout option to set supervisor host. Default is 127.0.0.1.

supervisor-username

Buildout option to set username for http monitor access. Default: None

supervisor-password

Buildout option to set password for http monitor access. Default: None

supervisor-use-monitor

Buildout option wheather to enable http monitor interface. Default: true

supervisor-loglevel

Buildout option for supervisor log level. Default: info

Buildout part options for the program section:

prefix

Deployment option to set the prefix of the installation folder. Default: /

user

Deployment option to set the run user.

etc-user

Deployment option to set the user of the /etc directory. Default: root

program

The name of the supervisor service.

command

The command to start the service.

directory

The directory where the command is started.

priority

The priority to start service (optional). Default is 999.

autostart

Start service automatically (optional). Default is true.

autorestart

Restart service automatically (optional). Default is false.

stdout-logfile

logfile for stdout (optional). Default is ${prefix}/var/log/supervisor/${program}.log

stderr-logfile

logfile for stderr (optional). Default is ${prefix}/var/log/supervisor/${program}.log

startsecs

Seconds the service needs to be online before marked as started (optional). Default is 1.

stopwaitsecs

Seconds to wait before killing service (optional). Default 10.

killasgroup

Kill also child processes (optional). Default false.

Note

The DAEMON_OPTS environment variable can be used to set additional start parameters for supervisord. For example DAEMON_OPTS=-n to start supervisord in foreground.

For supervisor configuration details see the documentation.

Example usage

The following example buildout.cfg installs a Supervisor configuration for myapp web application:

[buildout]
parts = myapp

anaconda-home = /opt/anaconda
supervisor-host = 127.0.0.1
supervisor-port = 9001
supervisor-use-monitor = true

[myapp]
recipe = birdhousebuilder.recipe.supervisor
prefix = /
user = www-data
program = myapp
command = ${buildout:bin-directory}/gunicorn -b unix:///tmp/myapp.socket myapp:app
directory = /tmp