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A Buildout recipe to install and configure Postgres database with Anaconda.

Project description

Introduction

birdhousebuilder.recipe.postgres is a Buildout recipe to install and configure Postgres database with Anaconda. Postgres will be deployed as a Supervisor service.

The recipe is based on https://github.com/makinacorpus/makina.recipe.postgres.

This recipe is used by the Birdhouse project.

Usage

The recipe requires that Anaconda is already installed. It assumes that the default Anaconda location is in your home directory ~/anaconda. Otherwise you need to set the ANACONDA_HOME environment variable or the Buildout option anaconda-home.

It installs the postgresql package from a conda channel in a conda environment named birdhouse. The location of the birdhouse environment is .conda/envs/birdhouse. It deploys a Supervisor configuration for Postgres in ~/.conda/envs/birdhouse/etc/supervisor/conf.d/postgres.conf. Supervisor can be started with ~/.conda/envs/birdhouse/etc/init.d/supervisor start.

The Postgres database files are by default in ~/.conda/envs/birdhouse/var/lib/postgres.

The recipe depends on birdhousebuilder.recipe.conda and birdhousebuilder.recipe.supervisor.

Supported options

The recipe supports the following options:

anaconda-home

Buildout option with the root folder of the Anaconda installation. Default: $HOME/anaconda. The default location can also be set with the environment variable ANACONDA_HOME. Example:

export ANACONDA_HOME=/opt/anaconda

Search priority is:

  1. anaconda-home in buildout.cfg
  2. $ANACONDA_HOME
  3. $HOME/anaconda
port
Port used for Postgres. Default: 5433.
pgdata
path to the database files. Default: ~/.conda/envs/birdhouse/var/lib/postgres
initdb
Options for Postgres initialisation. Default: --auth=trust
cmds
psql commands to setup your database schema and users.

Example usage

The following example buildout.cfg installs Postgres with Anaconda:

[buildout]
parts = postgres

anaconda-home = /home/myself/anaconda

[postgres]
recipe = birdhousebuilder.recipe.postgres
port = 5433
cmds =
     createuser -p 5433 --createdb --no-createrole --no-superuser --login demo
     createdb -p 5433 --owner=demo demo

After installing with Buildout start the Postgres service with:

$ cd /home/myself/.conda/envs/birdhouse
$ etc/init.d/supervisord start  # start|stop|restart
$ bin/supervisorctl status      # check that postgres is running

Authors

Carsten Ehbrecht ehbrecht at dkrz.de

Change History

0.2.0 (2015-03-31)

  • using postgresql from anaconda
  • refactored postgres setup
  • using subprocess instead of os.system

0.1.0 (2015-03-30)

Initial Release.

Project details


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