synapse
Puppet configuration for Airbnbs system for service discovery. Configures a dynamic HAproxy based on zookeeper entries
Version information
released Sep 7th 2016
Start using this module
Add this module to your Puppetfile:
mod 'KyleAnderson-synapse', '0.0.6'Learn more about managing modules with a PuppetfileDocumentation
KyleAnderson/synapse — version 0.0.6 Sep 7th 2016
#synapse
Description
This puppet module configures Synapse, a service discovery system by Airbnb. Synapse configures a local HAproxy running on every node, configured dynamically from Zookeeper entries.
##Installation
puppet module install KyleAnderson/synapse
# Or librarian-puppet, r10k, whatever.
What this module affects
- /etc/synapse/ for configs
- Installs synapse (either via gem or system package
- Installs and configures HAproxy
HAproxy considerations
This module is incompatible with an existing instance of HAProxy running. Synapse overwrites the HAProxy config file.
Usage Examples
Start off by getting synapse installed and running:
class { 'synapse':
package_provider => 'gem'
}
Now you can prep synapse for listening for services. Syntax is a little tricky, but follows the syntax in example configs. All parameters are validated, so puppet won't let you insert invalid syntax:
synapse::service { 'service1':
ensure => 'present',
default_servers => [
{
"name" => "default1",
"host" => "localhost",
"port" => 8422
}
],
discovery => {
"method" => "zookeeper",
"path" => "/airbnb/service/service2",
"hosts" => [
"zk0.airbnb.com:2181",
"zk1.airbnb.com:2181"
]
},
haproxy => {
"port" => '3214',
"server_options" => "check inter 2s rise 3 fall 2",
"listen" => [
"mode http",
"option httpchk /health",
]
},
}
Limitations
I assume that you are using a modern version of ruby on the puppetmaster. It outputs json, so either use ruby 1.9 with built in JSON or have the JSON gem available. Pull requests welcome for a better way to do this.
##Development Open an issue or fork and open a Pull Request
Change Log
v0.0.5 (2016-09-08)
Merged pull requests:
- Remove hasrestart=>true from Synapse initscript #11 (hashbrowncipher)
- Re-tool config, initscript, and upgrading #9 (hashbrowncipher)
v0.0.4 (2015-04-10)
v0.0.3 (2015-03-20)
Merged pull requests:
- use initctl to control service on redhat 6 #8 (georgebashi)
- Read extra sections from a variable #6 (vulpine)
- Allow user-specified global log entries #5 (vulpine)
- Allow service to not be managed, tidy bools #2 (bobtfish)
- librarian-puppet doesn't like modules without at least some dependency #1 (bobtfish)
v0.0.2 (2013-12-01)
v0.0.1 (2013-12-01)
* This Change Log was automatically generated by github_changelog_generator
Dependencies
- puppetlabs/stdlib (>= 3.0.0)
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