Peering Manager can run scheduled tasks to speed up some processes.
Before adding any of these tasks in a cron file, make sure that they use the Python virtual environment if you have one for Peering Manager (you should).
Since it is based on the PeeringDB API, querying these API can take quite a lot of time depending of the data that is needed to be retrieved. To avoid such time loss, Peering Manager is able to cache some of this data in its local database. This is required if you want to use PeeringDB data inside Peering Manager.
Caching in the Local Database
Assuming that Peering Manager is installed at
following command will retrieve data from PeeringDB and store it locally.
# venv/bin/python3 manage.py peeringdb_sync
PEERINGDB_API_KEY must be set in configuration if you
wish to sync Email Contacts from PeeringDB.
This command does not need to be run very often. For example, running it every 5 minutes is overkill, running it once a day should be enough.
The first cache synchronization can take a lot of time due to the amount of data to be stored. Later runs will be faster because only the differences with the previous synchronization will be retrieved.
This command can be called with the
--flush option to remove synchronized
# venv/bin/python3 manage.py peeringdb_sync --flush
Automatic Configuration Deployment
If Peering Manager is used to generate configuration stanzas and push them to routers, this task can be automated using the given command.
# venv/bin/python3 manage.py configure_routers --no-commit-check
This will generate the configuration for each router and push it. If there are no new peering sessions to be deployed, this command is also useful to deploy any new configuration information, such as maximum prefix changes peers may have made against existing peering sessions.
--no-commit-check flag is set, the command will try to push the
configuration on the router without checking if there are any changes to be
--limit flag is set, it expects a list of router hostnames on which
the new configuration must be installed. The router hostnames must be
separated by commas without spaces.
If no configuration template is attached to a given router, it will be ignored during the execution of the task.
Poll Peering Sessions
Poll peering sessions to update values shown in Peering Manager. The sessions must be in a BGP group or an Internet Exchange for them to be polled. They also have to be set in a reachable router.
# venv/bin/python3 manage.py poll_peering_sessions --all # can be -a (--all), # -g (--bgp-groups) or # -i (--internet-exchanges)
Storing IRR AS-SET Prefixes
bgpq3 each time to generate a prefix list for an autonomous system is
quite time consuming, even more if the prefix list is large. A command is
provided to perform the
bgpq3 calls and store the results in the database for
later use. A lookup in a database being less time consuming, this can improve
prefix list generation in template significantly. Note that there are no
invalidations of the prefixes found in the database, so make sure to run this
command at regular intervals to keep data up-to-date.
# venv/bin/python3 manage.py grab_prefixes --limit 100
--limit 100 flag is set, the command will not store prefixes for an IP
family if the number of prefixes is greater than 100. This can help to avoid
storing large number of prefixes for a single autonomous system, preventing out
of memory errors for future database lookups.
To avoid executing these commands by hand (which could be annoying) they can be run automatically.
Beside the systemd units for the main application and worker, the
also contains units to run the previously metioned tasks.
After copying the files, you have to enable the timer units you want to use by
systemctl enable peering-manager_peeringdb-sync.timer --now.
30 2 * * * user cd /opt/peering-manager && venv/bin/python3 manage.py peeringdb_sync 55 * * * * user cd /opt/peering-manager && venv/bin/python3 manage.py configure_routers 0 * * * * user cd /opt/peering-manager && venv/bin/python3 manage.py poll_peering_sessions --all 30 4 * * * user cd /opt/peering-manager && venv/bin/python3 manage.py grab_prefixes