DumbMonit
IntegrationsStorage and backups
Monitor Ceph with DumbMonit
BetaA Ceph cluster through the REST API of the manager's dashboard: health and its checks, OSDs down or nearly full, placement groups not clean, capacity, pools, monitors out of the quorum.
DocumentationOfficial website: Ceph
Product descriptions are in English, as in the product. The page labels follow your language.
What DumbMonit watches
This integration was built from the Ceph manager dashboard REST API documentation, not against a running cluster yet. It only reads. Tell us what breaks. A Ceph cluster through the REST API of the manager's dashboard module: the health status and the checks behind it, OSDs that are down, out or nearly full, placement groups that are not active+clean, raw capacity, pools and monitors that left the quorum.
Typical use. Storage cluster (beta): health checks, OSDs, placement groups, capacity, pools, monitors
Examples
- Ceph 18 (Reef)
- Ceph 19 (Squid)
- cephadm clusters
How it connects
What you need
- Dashboard user and passwordThe dumbmonit user of the Ceph dashboard, with the read-only role.
Network ports to open
8443/TCPDashboard REST API (HTTPS, default)8080/TCPOnly with the HTTP protocol option
Setup steps: Create a read-only dashboard user for DumbMonit
Check that the dashboard is enabled and note the address of the active manager.
ceph mgr servicesWrite a long random password to a file, and keep it: DumbMonit needs it.
openssl rand -base64 24 | tr -d '\n' | tee /tmp/dumbmonit.pwdCreate the user with the built-in read-only role.
ceph dashboard ac-user-create dumbmonit -i /tmp/dumbmonit.pwd read-onlyDelete the password file.
shred -u /tmp/dumbmonit.pwdIn DumbMonit, enter the address of the active manager (for example ceph.lan) with that user name and password.
Heads-up. A standby manager redirects to the active one: use the address of the active manager. The dashboard ships a self-signed certificate: tick "Accept an unverifiable certificate" unless you installed your own.