three color signal light for monitoring software build status
The project is built with Gradle. Use the commited Gradle wrapper script to obtain Gradle. Type ./gradlew tasks to get an overview of executable Gradle tasks. The task distZip is used to build a ZIP file that can be distributed.
The file /etc/jambel.json is used for configuring the Jambel. All jobs that are mapped onto this Jambel are listed in jobs. The signal light configuration includes the following items:
- the position of the green light (
topvs.bottom) - the host and port of the signal light
- the timeout that is used when waiting for a reply and upon establishing a TCP connection Furthermore, the port of the web interface can be configured.
The app must be started within the jambel folder with the command bin/jambel.
The web interface of the Jambel can be found at http://<HOSTNAME>:<HTTP-PORT>/web/. It can be used to see the last statuses of the jobs, the last sent configuration of the signal light and to reset the signal light.
Here is a list of ideas what to improve:
- Poll mode if push notifications cannot be made to the jambel (e.g. SZ, Anton!)
- control multiple signal lights and offer a flexible configuration from jobs to signal lights
- WebSocket for web UI to monitor the build status in the browser in real time
- retry sending signal light command after 5 seconds when connection was refused upon the first try (happens from time to time)
- set up application task of Gradle to generate start scripts for a daemon process (maybe using http://gradle.org/docs/current/dsl/org.gradle.api.tasks.application.CreateStartScripts.html)