MuninCloudPlugins

Simple Munin plugins for monitoring Owncloud (tested with Owncloud 9.1) or Nextcloud (should be compatible with Nextcloud 9 and 10, tested with Nextcloud 11)

Plugins

cloud_storage show the disk space usage per user (size of the file folder only, this does not include the content of file_trashbin or file_versions ones for instance). Include a quota lookup per user (if a quota is set) and provide a critical thresholds trigger when 95% of the quota is reached (parametrizable through env.quotaratio).
cloud_disk show the disk space usage per user (real size, including the file, file_trashbin, file_versions and other working folders).
cloud_quota show the users quotas (none or default are shown as 0)
cloud_session show the number of users opened sessions
cloud_share show the numbers of shares (shared files or folders) per user

Configuration

Sample setup for '/etc/munin/plugin-conf.d/munin-node':

[cloud_*]
env.dbuser owncloud
env.dbpassword password
env.dbname owncloud
env.dbtableprefix oc_
env.quotaratio 0.95

env.dbuser can be any user having a SELECT right on the env.dbname database used by Owncloud/Nextcloud. Or at least a SELECT right on the following tables:

cloud_storage: oc_users, oc_filecache, oc_mounts, oc_preferences
cloud_disk: oc_users, oc_filecache, oc_mounts
cloud_quota: oc_users, oc_preferences
cloud_session: oc_users, oc_authtoken
cloud_share: oc_users, oc_share

The pulgins are currently assuming that the owncloud database is a MySQL one, on localhost. The table prefix can changed using env.dbtableprefix (by default, it's the owncloud default one which is used: oc_).