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Light weight configuration management using Consul
Passport is a command line tool for rendering templates containing information gained from Consul’s Service Discovery API and Key/Value database.
Installation
Passport is available via pypi and can be installed with easy_install or pip:
pip install passportUsage
usage: passport.py [-h] [--host HOST] [--port PORT] [--datacenter DATACENTER]
{kv,file} path destinationExample
As an example, the following template is stored in the KV database as templates/memcached/memcached.conf
{% set nodes = ['%s:%s' % (r['Address'], r['ServicePort']) for r in consul.catalog.service('memcached')] %}
[memcached]
servers = {{ ','.join(nodes) }}Invoking passport will render the file with a list of all memcached nodes to /etc/memcached.conf.
passport kv templates/memcached/memcached.conf /etc/memcached.confAnd the output would look something like:
[memcached]
servers = 172.17.0.7:11211,172.17.0.8:11211Template rendering is done via the Tornado Template engine.
Todo
Add a managed mode where Passport will check for new services on a regular interval and when changes occur, update the rendered template and notify a process using HUP
Add daemonization for managed mode
Add the ability to specify pairs of templates/destinations in a single invocation
1 maintainer
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