Description

A cookbook for a chef_handler that sends reports and exceptions to Slack. There are two options for use:
1. Providing a team name and api_key (Uses the slackr gem)
2. Providing a hash containing incoming webhook url(s)

This cookbook was originally a fork of dcm-ops/chef-slack_handler by [Dan Ryan](dan.ryan@enstratius.com). We have taken over maintenance of this cookbook and released it to Supermarket.

Requirements

• The chef_handler cookbook
• An existing Slack incoming webhook(s)

Usage 1

1. Create a new Slack webhook (https://slack.com/services/new/incoming-webhook)
2. Set the team and api_key attributes above on the node/environment/etc.
3. Include this slack_handler recipe.

Usage 1 Attributes

• node['chef_client']['handler']['slack']['team'] - Your Slack team name (<team-name>.slack.com)
• node['chef_client']['handler']['slack']['api_key'] - The API key of your Slack incoming webhook
• node['chef_client']['handler']['slack']['channel'] - The #channel to send the results, should include the hash

Optional attributes
* node['chef_client']['handler']['slack']['username'] - The username of the Slack message, defaults to the node name
* node['chef_client']['handler']['slack']['icon_url'] - The Slack message icon, defaults to nil
* node['chef_client']['handler']['slack']['icon_emoji'] - The Slack message icon defined by available :emoji:, defaults to nil
* node['chef_client']['handler']['slack']['timeout'] - Timeout in seconds for the Slack API call, defaults to 15
* node['chef_client']['handler']['slack']['fail_only'] - Only report when runs fail as opposed to every single occurrence, defaults to false
* node['chef_client']['handler']['slack']['message_detail_level'] - The level of detail in the message. Valid options are basic, elapsed and resources, defaults to basic
* node['chef_client']['handler']['slack']['cookbook_detail_level'] - The level of detail about the cookbook used in the message. Valid options are off and all, defaults to off

NOTE: If both icon_url and icon_emoji are set, icon_url will take precedence.

Usage 2

1. Create a new Slack webhook (https://slack.com/services/new/incoming-webhook)
2. Set the attributes as specified below
3. Include this slack_handler recipe.

Usage 2 Attributes

Push as many webhooks as you wish onto the node config:
```

Add webhook1 URL

node['chef_client']['handler']['slack']['webhooks']['name'].push('webhook1')
node['chef_client']['handler']['slack']['webhooks']['webhook1']['url'] = 'https://hooks.slack.com/1/2/3'

Add webhook2 URL

node['chef_client']['handler']['slack']['webhooks']['name'].push('webhook2')
node['chef_client']['handler']['slack']['webhooks']['webhook2']['url'] = 'https://hooks.slack.com/1/2/4'
```

Optional attributes global to all webhooks:
```

Timeout in seconds for the Slack API call, defaults to 15

node['chef_client']['handler']['slack']['timeout'] = 30

Customizations for Slack WebHook config

See https://api.slack.com/incoming-webhooks#customizations_for_custom_integrations

The username of the Slack message, defaults to Slack WebHook config (i.e. nil)

node['chef_client']['handler']['slack']['username'] = 'Chef Bot'

Icon URL, defaults to Slack WebHook config (i.e. nil)

node['chef_client']['handler']['slack']['icon_url'] = 'https://avatars1.githubusercontent.com/u/29740'

Emoji for the Slack call, defaults to Slack WebHook config (i.e. nil)

node['chef_client']['handler']['slack']['icon_emoji'] = ':fork_and_knife:'

Only report when runs fail as opposed to every single occurrence, defaults to false

node['chef_client']['handler']['slack']['fail_only'] = true

The level of detail in the message. Valid options are 'basic', 'elapsed' and 'resources', defaults to 'basic'

node['chef_client']['handler']['slack']['message_detail_level'] = 'resources'

The level of detail about the cookbook used in the message. Valid options are 'off' and 'all', defaults to 'off'

node['chef_client']['handler']['slack']['cookbook_detail_level'] = 'all'
``
NOTE: If bothicon_urlandicon_emojiare set,icon_url` will take precedence.

Each webhook may also override the fail_only, message_detail_level and cookbook_detail_level global optional attributes:
```

Optional attributes for webhook1

node['chef_client']['handler']['slack']['webhooks']['webhook1']['fail_only'] = true
node['chef_client']['handler']['slack']['webhooks']['webhook1']['message_detail_level'] = 'elapsed'
node['chef_client']['handler']['slack']['webhooks']['webhook1']['cookbook_detail_level'] = 'all'
```

Credits

Borrowed everything from the logstash_handler cookbook here, who in turn borrowed quite a bit from the graphite_handler cookbook here.

License

slack_handler is provided under the Apache License 2.0. See LICENSE for details.