| `webhook_url` | Yes | The URL to your Slack WebHook |
| `room` | No | Your Slack room name. Default - #phpci |
| `username` | No | The name to send the message as. Default - PHPCI |
| `icon` | No | The URL to the user icon or an emoji such as :ghost:. Default - The value configured on Slack's WebHook setup |
| `message` | No | The message to send to the room. Default - `<%PROJECT_URI%|%PROJECT_TITLE%> - <%BUILD_URI%|Build #%BUILD%> has finished for commit <%COMMIT_URI%|%SHORT_COMMIT% (%COMMIT_EMAIL%)> on branch <%BRANCH_URI%|%BRANCH%>` |
| `show_status` | No | Whether or not to append the build status as an attachment in slack. Default - true