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consul (41) Versions 0.8.2

Application cookbook which installs and configures Consul.

Berkshelf/Librarian
Policyfile
Knife
cookbook 'consul', '= 0.8.2'
cookbook 'consul', '= 0.8.2', :supermarket
knife cookbook site install consul
knife cookbook site download consul
README
Dependencies
Changelog
Quality

consul-cookbook

Release Build Status Code Coverage

Installs and configures Consul client, server and UI.

Supported Platforms

  • CentOS 5.10, 6.5, 7.0
  • RHEL 5.10, 6.5, 7.0
  • Ubuntu 10.04, 12.04, 14.04

Attributes

<table> <tr> <th>Key</th> <th>Type</th> <th>Description</th> <th>Default</th> </tr> <tr> <td><tt>['consul']['version']</tt></td> <td>String</td> <td>Version to install</td> <td><tt>0.4.1</tt></td> </tr> <tr> <td><tt>['consul']['base_url']</tt></td> <td>String</td> <td>Base URL for binary downloads</td> <td><tt>https://dl.bintray.com/mitchellh/consul/</tt></td> </tr> <tr> <td><tt>['consul']['encrypt']</tt></td> <td>String</td> <td>Encryption string for consul cluster.</td> <td><tt>nil</tt></td> </tr> <tr> <td><tt>['consul']['install_method']</tt></td> <td>String</td> <td>Method to install consul with when using default recipe: binary or source</td> <td><tt>binary</tt></td> </tr> <tr> <td><tt>['consul']['install_dir']</tt></td> <td>String</td> <td>Directory to install binary to.</td> <td><tt>/usr/local/bin</tt></td> </tr> <tr> <td><tt>['consul']['service_mode']</tt></td> <td>String</td> <td>Mode to run consul as: bootstrap, cluster, server, or client</td> <td><tt>bootstrap</tt></td> </tr> <tr> <td><tt>['consul']['bootstrap_expect']</tt></td> <td>String</td> <td>When bootstrapping a cluster, the number of server nodes to expect.</td> <td><tt>nil</tt></td> </tr> <tr> <td><tt>['consul']['data_dir']</tt></td> <td>String</td> <td>Location to store consul's data in</td> <td><tt>/var/lib/consul</tt></td> </tr> <tr> <td><tt>['consul']['config_dir']</tt></td> <td>String</td> <td>Location to read service definitions from (directoy will be created)</td> <td><tt>/etc/consul.d</tt></td> </tr> <tr> <td><tt>['consul']['servers']</tt></td> <td>Array Strings</td> <td>Consul servers to join</td> <td><tt>[]</tt></td> </tr> <tr> <td><tt>['consul']['retry_on_join']</tt></td> <td>Boolean</td> <td>Set to true to wait for servers to be up before try to elect a leader</td> <td><tt>false</tt></td> </tr> <tr> <td><tt>['consul']['bind_addr']</tt></td> <td>String</td> <td>address that should be bound to for internal cluster communications</td> <td><tt>0.0.0.0</tt></td> </tr> <tr> <td><tt>['consul']['datacenter']</tt></td> <td>String</td> <td>Name of Datacenter</td> <td><tt>dc1</tt></td> </tr> <tr> <td><tt>['consul']['domain']</tt></td> <td>String</td> <td>Domain for service lookup dns queries</td> <td><tt>.consul</tt></td> </tr> <tr> <td><tt>['consul']['enable_syslog']</tt></td> <td>Boolean</td> <td>enables logging to syslog</td> <td><tt>nil</tt></td> </tr> <tr> <td><tt>['consul']['log_level']</tt></td> <td>String</td> <td> The level of logging to show after the Consul agent has started. Available: "trace", "debug", "info", "warn", "err" </td> <td><tt>info</tt></td> </tr> <tr> <td><tt>['consul']['node_name']</tt></td> <td>String</td> <td>The name of this node in the cluster</td> <td>hostname of the machine</td> </tr> <tr> <td><tt>['consul']['advertise_addr']</tt></td> <td>String</td> <td>address that we advertise to other nodes in the cluster</td> <td>Value of <i>bind_addr</i></td> </tr> <tr> <td><tt>['consul']['init_style']</tt></td> <td>String</td> <td>Service init mode for running consul as: init or runit</td> <td><tt>init</tt></td> </tr> <tr> <td><tt>['consul']['service_user']</tt></td> <td>String</td> <td>For runit service: run consul as this user (init uses 'root')</td> <td><tt>consul</tt></td> </tr> <tr> <td><tt>['consul']['service_group']</tt></td> <td>String</td> <td>For runit service: run consul as this group (init uses 'root')</td> <td><tt>consul</tt></td> </tr> <tr> <td><tt>['consul']['bind_interface']</tt></td> <td>String</td> <td> Interface to bind to, such as 'eth1'. Sets bind_addr attribute to the IP of the specified interface if it exists. </td> <td><tt>nil</tt></td> </tr> <tr> <td><tt>['consul']['advertise_interface']</tt></td> <td>String</td> <td> Interface to advertise, such as 'eth1'. Sets advertise_addr attribute to the IP of the specified interface if it exists. </td> <td><tt>nil</tt></td> </tr> <tr> <td><tt>['consul']['extra_params']</tt></td> <td>hash</td> <td> Pass a hash of extra params to the default.json config file </td> <td><tt>{}</tt></td> </tr> <tr> <td><tt>['consul']['encrypt_enabled']</tt></td> <td>Boolean</td> <td> To enable Consul gossip encryption </td> <td><tt>false</tt></td> </tr> <tr> <td><tt>['consul']['verify_incoming']</tt></td> <td>Boolean</td> <td> If set to True, Consul requires that all incoming connections make use of TLS. </td> <td><tt>false</tt></td> </tr> <tr> <td><tt>['consul']['verify_outgoing']</tt></td> <td>Boolean</td> <td> If set to True, Consul requires that all outgoing connections make use of TLS. </td> <td><tt>false</tt></td> </tr> <tr> <td><tt>['consul']['key_file']</tt></td> <td>String</td> <td> The content of PEM encoded private key </td> <td><tt>nil</tt></td> </tr> <tr> <td><tt>['consul']['key_file_path']</tt></td> <td>String</td> <td> Path where the private key is stored on the disk </td> <td><tt>/etc/consul.d/key.pem</tt></td> </tr> <tr> <td><tt>['consul']['ca_file']</tt></td> <td>String</td> <td> The content of PEM encoded ca cert </td> <td><tt>nil</tt></td> </tr> <tr> <td><tt>['consul']['ca_file_path']</tt></td> <td>String</td> <td> Path where ca is stored on the disk </td> <td><tt>/etc/consul.d/ca.pem</tt></td> </tr> <tr> <td><tt>['consul']['cert_file']</tt></td> <td>String</td> <td> The content of PEM encoded cert. It should only contain the public key. </td> <td><tt>nil</tt></td> </tr> <tr> <td><tt>['consul']['cert_file_path']</tt></td> <td>String</td> <td> Path where cert is stored on the disk </td> <td><tt>/etc/consul.d/cert.pem</tt></td> </tr> </table>

Databag Attributes (optional)

Following attributes, if exist in the encrypted databag, override the node attributes

<table> <tr> <th>Key</th> <th>Databag item</th> <th>Type</th> <th>Description</th> </tr> <tr> <td><tt>key_file</tt></td> <td>['consul']['encrypt']</td> <td>String</td> <td>The content of PEM encoded private key</td> </tr> <tr> <td><tt>key_file_{fqdn}</tt></td> <td>['consul']['encrypt']</td> <td>String</td> <td>Node's(identified by fqdn) unique PEM encoded private key. If it exists, it will override the databag and node key_file attribute</td> </tr> <tr> <td><tt>ca_file</tt></td> <td>['consul']['encrypt']</td> <td>String</td> <td>The content of PEM encoded ca cert</td> </tr> <tr> <td><tt>encrypt</tt></td> <td>['consul']['encrypt']</td> <td>String</td> <td>Consul Gossip encryption key</td> </tr> <tr> <td><tt>cert_file</tt></td> <td>['consul']['encrypt']</td> <td>String</td> <td>The content of PEM encoded cert</td> </tr> <tr> <td><tt>cert_file_{fqdn}</tt></td> <td>['consul']['encrypt']</td> <td>String</td> <td>Node's(identified by fqdn) unique PEM encoded cert. If it exists, it will override the databag and node cert_file attribute</td> </tr> </table>

Consul UI Attributes

<table> <tr> <th>Key</th> <th>Type</th> <th>Description</th> <th>Default</th> </tr> <tr> <td><tt>['consul']['client_address']</tt></td> <td>String</td> <td>Address to bind to</td> <td><tt>0.0.0.0</tt></td> </tr> <tr> <td><tt>['consul']['client_interface']</tt></td> <td>String</td> <td> Interface to advertise, such as 'eth1'. Sets advertise_addr attribute to the IP of the specified interface if it exists. </td> <td><tt>nil</tt></td> </tr> <tr> <td><tt>['consul']['serve_ui']</tt></td> <td>Boolean</td> <td>Determines whether the consul service also serve's the UI</td> <td><tt>false</tt></td> </tr> </table>

Usage

The easiest way to bootstrap a cluster is to use the cluster recipe and use Chef provisioning which is a relatively new extension. This extension allows you to use any driver and easily stand up a cluster. Once the Chef Development Kit has been installed you can run the following command to provision a cluster.

gem install chef-provisioning chef-provisioning-fog
export CHEF_DRIVER=fog:AWS
chef-client -z cluster.rb

Please follow the Chef provisioning README which provides more detailed information about provisioning. You'll need to configure your credentials prior to provisioning.

consul::default

The default recipe will install the Consul agent using the consul::install_binary recipe. It will also configure and start consul at the machine boot.

consul::install_binary

If you only wish to simply install the binary from the official mirror you simply include consul::install_binary in your node's run_list:

{
  "run_list": [
    "recipe[consul::install_binary]"
  ]
}

consul::install_source

Instead if you wish to install Consul from source you simply need to include consul::install_source in your node's run_list. This will also configure the Go language framework on the node to build the application.

{
  "run_list": [
    "recipe[consul::install_source]"
  ]
}

consul::ui

Installing the separate Consul UI simply requires you to include the consul::ui recipe in your node's run_list.

{
  "run_list": [
    "recipe[consul::ui]"
  ]
}

LWRP

Adding key watch
consul_key_watch_def 'key-watch-name' do
  key "/key/path"
  handler "chef-client"
end
Adding event watch
consul_event_watch_def 'event-name' do
  handler "chef-client"
end
Adding service watch
consul_service_watch_def 'service-name' do
      passingonly true
  handler "chef-client"
end
Adding service without check
consul_service_def 'voice1' do
  port 5060
  tags ['_sip._udp']
  notifies :reload, 'service[consul]'
end
Adding service with check
consul_service_def 'voice1' do
  port 5060
  tags ['_sip._udp']
  check(
    interval: '10s',
    script: 'echo ok'
  )
  notifies :reload, 'service[consul]'
end
Removing service
consul_service_def 'voice1' do
  action :delete
  notifies :reload, 'service[consul]'
end

Be sure to notify the Consul resource to restart when your service def changes.

Getting Started

To bootstrap a consul cluster follow the following steps: 0. Make sure that ports 8300-8302 (by default, if you configured different ones open those) UDP/TCP are all open. 1. Bootstrap a few (preferablly 3 nodes) to be your consul servers, these will be the KV masters. 2. Put node['consul']['servers'] =["Array of the bootstrapped servers ips or dns names"] in your environment. 3. Apply the consul cookbook to these nodes with node['consul']['service_mode'] = 'cluster' (I put this in this in a CONSUL_MASTER role). 4. Let these machines converge, once you can run consul members and get a list of all of the servers your ready to move on 5. Apply the consul cookbook to the rest of your nodes with node['consul']['service_mode'] = 'client' (I put this in the environment) 6. Start added services and checks to your cookbooks. 7. If you want to get values out of consul to power your chef, curl localhost:8500/v1/kv/key/path?raw in your cookbook.

Authors

Created and maintained by John Bellone @johnbellone (jbellone@bloomberg.net) and a growing community of contributors.

0.8.2

  • Bug Fixes
    • Set GOMAXPROCS when using runit service style

0.8.1

  • Bug Fixes
    • Vanilla init script now points to the proper Consul binary and data dir

0.8.0

  • Enhancements

    • Upgrading from one version to another of Consul is now supported. The Consul service will automatically restart after upgrade.
  • Bug Fixes

    • Partial convergeances will now gracefully recover on the next chef run
    • Upstart will now respawn Consul on crash
    • It is no longer possible to set an invalid install method
  • Backwards incompatible changes

    • 'consul/ui_dir' attribute was removed. This will automatically be placed within the directory configured by 'consul/data_dir' as 'ui'

0.7.1

  • Bug Fixes
    • Fixed: Reloading the Consul service when using the runit init style will

0.7.0

  • Enhancements

    • Added cluster recipe for easily provisioning new Consul clusters. See the README for details
    • Added support for additional options for service_config
    • Added support for Ubuntu 10.04
    • Allow custom data bag / data bag item for Consul encrypt. Default data bag is still consul and default item is still encrypt
    • Bump support for Golan cookbook ~> 1.4
    • Added consul/retry_on_join attribute which to specify retry_join strategy instead of the default: start_join
    • Added consul_service_watch LWRP
  • Bug Fixes

    • No longer overwrite service user/group attribute when using non-runit init styles
    • Setting the version attribute will now point to the appropriate download URL
    • Use ID attribute to identify consul check definition files instead of name. If no ID is present name will be used

0.6.0

  • Add support for TLS, and gossip encryption

New features: - Add Chef Provisioning recipe for bootstrapping a cluster. - Add LWRP for defining an event watch (thanks @ericfode

0.4.4

  • Adds server list to a consul instance running as a cluster with a bootstrap_expect value greater than one.

0.4.3

  • Fix race condition when installing Consul as a runit service
  • Documentation fixes

0.4.2

Bumps default version of Consul to 0.4.0

0.4.1

Bumps default version of Consul to 0.3.1.

Adds support to bind to the IP of a named interface. - bind_interface, advertise_interface, client_interface attributes (thanks @romesh-mccullough)

Test/Quality Coverage - Expands test coverage to the consul::ui and consul::_service recipes. - Passes some more rubocop and foodcritic code quality tests. - Only test in Travis against rubies of future past.

0.4.0

Adds ChefSpec tests and software lint/metrics.

Breaking Changes - Renames binary_install recipe to install_binary - Renames source_install recipe to source_binary

0.3.0

Bumps the release of Consul to 0.3.0.

Adds Service LWRP (thanks @reset!)

0.2.0

Bumps the release of Consul to 0.2.0.

Adds consul::service recipe. Adds more tests.

Bug Smashing - Source installation now works properly. - Test Kitchen shows all green!

0.1.0

Initial release of Consul cookbook.

Source and binary installation recipes.

Foodcritic Metric
            

0.8.2 failed this metric

FC001: Use strings in preference to symbols to access node attributes: /tmp/cook/87e5fa7d4da302b5c0f7b269/consul/recipes/_service.rb:124
FC001: Use strings in preference to symbols to access node attributes: /tmp/cook/87e5fa7d4da302b5c0f7b269/consul/templates/default/sv-consul-log-run.erb:2
FC019: Access node attributes in a consistent manner: /tmp/cook/87e5fa7d4da302b5c0f7b269/consul/recipes/_service.rb:124
FC021: Resource condition in provider may not behave as expected: /tmp/cook/87e5fa7d4da302b5c0f7b269/consul/providers/check_def.rb:21
FC023: Prefer conditional attributes: /tmp/cook/87e5fa7d4da302b5c0f7b269/consul/recipes/_service.rb:166
FC031: Cookbook without metadata file: /tmp/cook/87e5fa7d4da302b5c0f7b269/consul/metadata.rb:1
FC045: Consider setting cookbook name in metadata: /tmp/cook/87e5fa7d4da302b5c0f7b269/consul/metadata.rb:1