hooks.json

[
  {
    "id": "webhook",
    "execute-command": "/home/you/webhooks/myapp.sh",
    "command-working-directory": "/home/you/webhooks",
    "response-message": "Deploying new application from Github",
    "trigger-rule": {
      "match": {
        "type": "payload-hash-sha1",
        "secret": "the-password-to-protect-the-webhook",
        "parameter": {
          "source": "header",
          "name": "X-Hub-Signature"
        }
      }
    }
  }
]