lita-cookbook

Installs and configures the lita chatbot.

Supported Platforms

• Ubuntu
  • 12.04 (precise)
  • 14.04 (trusty)

It will likely work on other Ubuntu versions, however the automatic methods of installing ruby and redis will have issues.

Tunable Attributes

All tunable attributes are in the lita heirarchy.

Important Note

It turns out that creating a valid ruby file from Chef attributes is trickier than I originally thought. Attributes can be added to the node object via JSON strings (node attributes or environment/role in JSON form) or Ruby methods (wrapper cookbooks or the ruby version of environments/roles). There is a library file called helpers.rb which includes the typecast method which is used in the lita_config.rb.erb template to build out valid ruby configuration.

This method is new and I've tested it with contrived data. However, if you find a situation that doesn't work, you can can create a wrapper cookbook and set the config_cookbook and config_template attributes to your own template. Then be sure to notify me through GitHub issues and I'll attempt to adjust the method to support whatever case I missed.

Usage

lita::default

Installs and configures the lita chatbot.

Configuration

Adapter

To make this effective you'll need to choose a non-default adapter from the Lita plugin page. The :shell adapter will not startup in daemon mode so the only way to test with it is to spin up a node, change into the node["lita"]["install_dir"] and run bin/lita

Adapter Configuration

The adapter config now supports complex ruby data types (i.e. hashes, hash of arrays, etc.)

Plugins

Plugins can be listed in an array or, optionally listed as an array of hashes using plugin name as the key and Gemfile line syntax:

default["lita"]["plugins"] = [
  "ping",
  { "jenkins" => ">= 0.0.1" }
  { "foo" => ">= 1.2.3, :git => 'git://github.com/foo/foo.git'" }
  { "bar" => ":path => '/path/to/local/plugin/lita-bar'" }
]

The above example has four different ways to install / manage plugins:

• the latest version of the lita-ping plugin from rubygems.org
• the version greater than 0.0.1 of lita-jenkins plugin from rubygems.org
• the repository for foo-lita from git want having version greater than or equal to 1.2.3 (This could be public or private depending on whether the node/user has access to git.)
• A local plugin called 'lita-bar' on the filesystem of the lita node found at the path /path/to/local/plugin/lita-bar

Plugin Configuration

The plugins can also be configured with complex data types in ruby or json:

default["lita"]["plugin_config"] = {
  "foo" => {
    "bar" => {
      "key1" => "val1"
    }
  }
}

{
  "lita": {
    "plugin_config": {
      "foo": {
        "bar": {
          "key1": "val1"
        }
      }
    }
  }
}

It can even take a string that looks like a hash and convert it appropriately:

{
  "lita": {
    "plugin_config": {
      "foo": "{ \"bar\": { \"key1\": \"val1\" } }"
    }
  }
}

Ruby and Redis

Lita requires recent versions of Ruby and Redis. By default, the lita cookbook will automatically try to find appropriate ruyb and redis versions for your platform and version.

To install those dependencies yourself, simple set the install type attributes to none as such:

node.default["lita"]["ruby_install_type"] = "none"
node.default["lita"]["redis_install_type"] = "none"

If these versions don't work for you (or the cookbook doesn't currently support your platform/version), you can manage the installation of ruby and redis yourself through various methods:

• Add ruby and redis using community cookbooks in your node/role run_list
• Creating a wrapper cookbook that does the same
• Using a base image that already includes the dependencies

The only requirement for the lita cookbook is that ruby, gem and bundler are in the system path and provide the appropriate versions to work with lita.

Example

Here's an example node configuration for leveraging lita-hipchat:

{
  "lita": {
    "adapters": ["hipchat"],
    "adapter_config": {
      "hipchat": {
        "jid": "99999_0000000@chat.hipchat.com",
        "password": "sekret1",
        "rooms": ":all",
        "muc_domain": "conf.hipchat.com"
      }
    },
    "gems": {
      "pagerduty-sdk", ":git => \"https://github.com/kryptek/pagerduty-sdk.git\""
    },
    "plugins": [
      "jenkins",
      "pagerduty",
      "cron",
      "dig",
      "youtube",
      "xkcd",
      "jenkins",
      "wikipedia"
    ],
    "plugin_config": {
      "jenkins": {
        "url": "http://jenkins.notreally.com/",
        "auth": "lita:sekret1"
      },
      "pagerduty": {
        "api_key": "kkkkkkkkkkkkkkkkkkkkkk",
        "subdomain": "notreally"
      }
    }
}

License and Authors

• Author:: Harlan Barnes (hbarnes@pobox.com)

Copyright:: 2014 Harlan Barnes

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.