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IntégrationsStockage et sauvegardes

Surveiller Ceph avec DumbMonit

Bêta

A 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.

DocumentationSite officiel : Ceph

Les descriptions des produits sont en anglais, comme dans le produit. Les libellés de la page suivent votre langue.

Ce que DumbMonit surveille

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.

Usage typique. Storage cluster (beta): health checks, OSDs, placement groups, capacity, pools, monitors

Exemples

  • Ceph 18 (Reef)
  • Ceph 19 (Squid)
  • cephadm clusters

Comment il se connecte

Ce qu'il faut

  • Dashboard user and passwordThe dumbmonit user of the Ceph dashboard, with the read-only role.

Ports réseau à ouvrir

  • 8443/TCPDashboard REST API (HTTPS, default)
  • 8080/TCPOnly with the HTTP protocol option
Étapes de mise en place: Create a read-only dashboard user for DumbMonit

  1. Check that the dashboard is enabled and note the address of the active manager.

    ceph mgr services

  2. Write a long random password to a file, and keep it: DumbMonit needs it.

    openssl rand -base64 24 | tr -d '\n' | tee /tmp/dumbmonit.pwd

  3. Create the user with the built-in read-only role.

    ceph dashboard ac-user-create dumbmonit -i /tmp/dumbmonit.pwd read-only

  4. Delete the password file.

    shred -u /tmp/dumbmonit.pwd

  5. In DumbMonit, enter the address of the active manager (for example ceph.lan) with that user name and password.

À savoir. 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.

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