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221 lines
8.4 KiB
ReStructuredText
221 lines
8.4 KiB
ReStructuredText
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.. _orchestrator-cli-module:
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================
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Orchestrator CLI
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================
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This module provides a command line interface (CLI) to orchestrator
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modules (``ceph-mgr`` modules which interface with external orchestration services).
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As the orchestrator CLI unifies multiple external orchestrators, a common nomenclature
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for the orchestrator module is needed.
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+--------------------------------------+---------------------------------------+
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| *host* | hostname (not DNS name) of the |
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| | physical host. Not the podname, |
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| | container name, or hostname inside |
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| | the container. |
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+--------------------------------------+---------------------------------------+
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| *service type* | The type of the service. e.g., nfs, |
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| | mds, osd, mon, rgw, mgr, iscsi |
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+--------------------------------------+---------------------------------------+
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| *service* | A logical service, Typically |
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| | comprised of multiple service |
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| | instances on multiple hosts for HA |
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| | |
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| | * ``fs_name`` for mds type |
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| | * ``rgw_zone`` for rgw type |
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| | * ``ganesha_cluster_id`` for nfs type |
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+--------------------------------------+---------------------------------------+
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| *daemon* | A single instance of a service. |
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| | Usually a daemon, but maybe not |
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| | (e.g., might be a kernel service |
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| | like LIO or knfsd or whatever) |
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| | |
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| | This identifier should |
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| | uniquely identify the instance |
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+--------------------------------------+---------------------------------------+
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The relation between the names is the following:
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* A *service* has a specific *service type*
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* A *daemon* is a physical instance of a *service type*
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.. note::
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Orchestrator modules may only implement a subset of the commands listed below.
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Also, the implementation of the commands may differ between modules.
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Status
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======
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::
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ceph orch status [--detail]
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Show current orchestrator mode and high-level status (whether the orchestrator
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plugin is available and operational)
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..
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Turn On Device Lights
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^^^^^^^^^^^^^^^^^^^^^
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::
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ceph orch device ident-on <dev_id>
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ceph orch device ident-on <dev_name> <host>
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ceph orch device fault-on <dev_id>
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ceph orch device fault-on <dev_name> <host>
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ceph orch device ident-off <dev_id> [--force=true]
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ceph orch device ident-off <dev_id> <host> [--force=true]
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ceph orch device fault-off <dev_id> [--force=true]
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ceph orch device fault-off <dev_id> <host> [--force=true]
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where ``dev_id`` is the device id as listed in ``osd metadata``,
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``dev_name`` is the name of the device on the system and ``host`` is the host as
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returned by ``orchestrator host ls``
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ceph orch osd ident-on {primary,journal,db,wal,all} <osd-id>
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ceph orch osd ident-off {primary,journal,db,wal,all} <osd-id>
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ceph orch osd fault-on {primary,journal,db,wal,all} <osd-id>
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ceph orch osd fault-off {primary,journal,db,wal,all} <osd-id>
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where ``journal`` is the filestore journal device, ``wal`` is the bluestore
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write ahead log device, and ``all`` stands for all devices associated with the OSD
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.. _orchestrator-cli-stateless-services:
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Stateless services (MDS/RGW/NFS/rbd-mirror/iSCSI)
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=================================================
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(Please note: The orchestrator will not configure the services. Please look into the corresponding
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documentation for service configuration details.)
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The ``name`` parameter is an identifier of the group of instances:
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* a CephFS file system for a group of MDS daemons,
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* a zone name for a group of RGWs
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Creating/growing/shrinking/removing services::
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ceph orch apply mds <fs_name> [--placement=<placement>] [--dry-run]
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ceph orch apply rgw <name> [--realm=<realm>] [--zone=<zone>] [--port=<port>] [--ssl] [--placement=<placement>] [--dry-run]
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ceph orch apply nfs <name> <pool> [--namespace=<namespace>] [--placement=<placement>] [--dry-run]
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ceph orch rm <service_name> [--force]
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where ``placement`` is a :ref:`orchestrator-cli-placement-spec`.
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e.g., ``ceph orch apply mds myfs --placement="3 host1 host2 host3"``
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Service Commands::
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ceph orch <start|stop|restart|redeploy|reconfig> <service_name>
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.. note:: these commands applies to cephadm containerized daemons only.
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Options
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=======
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.. option:: start
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Start the daemon on the corresponding host.
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.. option:: stop
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Stop the daemon on the corresponding host.
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.. option:: restart
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Restart the daemon on the corresponding host.
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.. option:: redeploy
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Redeploy the Ceph daemon on the corresponding host. This will recreate the daemon directory
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structure under ``/var/lib/ceph/<fsid>/<daemon-name>`` (if it doesn't exist), refresh its
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configuration files, regenerate its unit-files and restarts the systemd daemon.
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.. option:: reconfig
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Reconfigure the daemon on the corresponding host. This will refresh configuration files then restart the daemon.
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.. note:: this command assumes the daemon directory ``/var/lib/ceph/<fsid>/<daemon-name>`` already exists.
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Configuring the Orchestrator CLI
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================================
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To enable the orchestrator, select the orchestrator module to use
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with the ``set backend`` command::
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ceph orch set backend <module>
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For example, to enable the Rook orchestrator module and use it with the CLI::
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ceph mgr module enable rook
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ceph orch set backend rook
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Check the backend is properly configured::
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ceph orch status
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Disable the Orchestrator
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------------------------
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To disable the orchestrator, use the empty string ``""``::
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ceph orch set backend ""
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ceph mgr module disable rook
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Current Implementation Status
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=============================
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This is an overview of the current implementation status of the orchestrators.
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=================================== ====== =========
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Command Rook Cephadm
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=================================== ====== =========
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apply iscsi ⚪ ✔
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apply mds ✔ ✔
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apply mgr ⚪ ✔
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apply mon ✔ ✔
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apply nfs ✔ ✔
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apply osd ✔ ✔
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apply rbd-mirror ✔ ✔
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apply cephfs-mirror ⚪ ✔
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apply grafana ⚪ ✔
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apply prometheus ❌ ✔
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apply alertmanager ❌ ✔
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apply node-exporter ❌ ✔
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apply rgw ✔ ✔
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apply container ⚪ ✔
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apply snmp-gateway ❌ ✔
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host add ⚪ ✔
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host ls ✔ ✔
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host rm ⚪ ✔
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host maintenance enter ❌ ✔
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host maintenance exit ❌ ✔
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daemon status ⚪ ✔
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daemon {stop,start,...} ⚪ ✔
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device {ident,fault}-(on,off} ⚪ ✔
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device ls ✔ ✔
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iscsi add ⚪ ✔
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mds add ⚪ ✔
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nfs add ⚪ ✔
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rbd-mirror add ⚪ ✔
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rgw add ⚪ ✔
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ls ✔ ✔
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ps ✔ ✔
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status ✔ ✔
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upgrade ❌ ✔
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=================================== ====== =========
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where
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* ⚪ = not yet implemented
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* ❌ = not applicable
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* ✔ = implemented
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