chirp

Chirp is meant to be set up with Travis CI to repeatedly build itself for purposes of real world monitoring. There is a server component called chirp-tracker that understands both github and travis webhook payloads and keeps a record of timestamps and commits from each such that a delta may be used as a simple metric for high level alerts.

setup

0. Add this gem as a dependency in a Gemfile, e.g. gem 'chirp', github: 'travis-infrastructure/chirp'
1. Add a .travis.yml with required bits
   • Ensure it is language: ruby or at least uses a language with bundler available
   • Ensure the script step includes bundle exec chirp scripts
   • Optionally, add an after_success step that includes:
     • bundle exec chirp pushback &>/dev/null
     • bundle exec chirp sendstats &>/dev/null
   • Optionally, add an after_failure step with bundle exec chirp dumplogs
   • Ensure there is a webhook set up to point at a chirp-tracker instance with on_success: always and on_failure: never
2. travis enable
3. Generate a github token with repo scope
4. travis env set GITHUB_OAUTH_TOKEN <github-token>
5. Add a webhook on github for chirp-tracker, e.g. https://chirp-tracker-production.herokuapp.com/github with content type of application/x-www-form-urlencoded and the secret token configured on the server side. Only the push event needs to be configured.