Add the Slack recipe to send notifications to a Slack channel on deployment. This contains some predefined settings to make it easier to send notifications to Slack.
require 'vendor/studio24/deployer-recipes/recipe/slack.php';
You need to set up a Slack webhook URL and save this as an environment variable in your .env file:
.env file:
SLACK_WEBHOOK=https://hooks.slack.com/services/your/webhook/url
In your deploy.php you need to load environment variables:
set('dotenv', '{{current_path}}/.env');
You can also set this in your deploy.php script instead of an environment variable, but this is not recommended since it contains sensitive information.
set('slack_webhook', 'https://hooks.slack.com/services/your/webhook/url');