Semaphore Webhook Server

A small Python webservice to extend the API of Semaphore UI with a "webhook" enpoint to start tasks.

Installation

1. Put the script onto your Semaphore server.
2. Run it e.g. as a systemd service.
3. Configure the reverse proxy to proxy a path of your choice to http://localhost:3042/webhook rather than Semaphore.

   • Apache example:

       ProxyPass /.well-known !
       # Webhook server - must be before semaphre
       ProxyPass /webhook http://localhost:3042/webhook
       ProxyPassReverse /webhook http://localhost:3042/webhook
       # Semaphore
       ProxyPass /api/ws ws://localhost:3000/api/ws
       ProxyPass / http://localhost:3000/
       ProxyPassReverse / http://localhost:3000/
     

Usage

The easiest to use this webhook endpoint, simply GET or POST the /webhook endpoint with the project_id and template_id parameters:

GET /webhook?project_id=1&template_id=1 HTTP/1.1
Host: semaphore.example.org
Authorization: Bearer ...

These two parameters are required. The total set of supporter parameters are:

• project_id (required): int
• template_id (required): int
• debug: bool, true or false
• dry_run: bool
• diff: bool

Each request to the webhook server is transformed into a request to the Semaphore API's POST /project/{project_id}/tasks endpoint.

The authorization header is passed on to Semaphore unmodified.