buildmaster-config

Buildbot master configuration for buildbot.python.org.

Private settings

The production server uses /etc/buildbot/settings.yaml configuration file which contains secrets like the IRC nickname password.

Update requirements

Run locally:

make git-update-requirements

Create a PR. Merge the PR. The new venv will be recreated automatically on the server.

If something goes wrong, commands to recreate the venv manually on the server:

make stop-master
git pull
mv venv old-venv
make venv
make start-master

# then you may watch logs in realtime:
# tail -F master/twistd.log

Upgrading buildbot sometimes requires to run the command:

./venv/bin/buildbot upgrade-master /data/buildbot/master

Make sure that the server is running, and then remove the old virtual environment:

rm -rf old-venv

Hosting

The buildbot master is hosted on the PSF Infrastructure and is managed via salt.

psycopg2 also requires libpq-dev:

sudo apt-get install libpq-dev

Backend host address is buildbot.nyc1.psf.io.
The host is behind the PSF HaProxy cluster which is CNAMEd by buildbot.python.org.
Database is hosted on a managed Postgres cluster, including backups.
Remote backups of /etc/buildbot/settings.yaml are taken hourly and retained for 90 days.
No other state for the buildbot host is backed up!

Configurations from this repository are applied from the master branch on a */15 cron interval using the update-master target in Makefile.

Python 3.9 is installed manually using pyenv (which was also installed manually). Commands to install Python 3.9:

pyenv update
pyenv install 3.9.1
pyenv global 3.8.1 3.9.1

Add a worker

The list of workers is stored in /etc/buildbot/settings.yaml on the server. A worker password should be made of 14 characters (a-z, A-Z, 0-9 and special characters), for example using KeePassX.

Generate a password
Add the password in /etc/buildbot/settings.yaml
Restart the buildbot server: make restart-master

Documentation: http://docs.buildbot.net/current/manual/configuration/workers.html#defining-workers

freakboy3742/buildmaster-config

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