cephadm deploys and manages a Ceph cluster. It does this by connecting the
manager daemon to hosts via SSH. The manager daemon is able to add, remove, and
update Ceph containers.
cephadm does not rely on external configuration
tools such as Ansible, Rook, and Salt.
cephadm manages the full lifecycle of a Ceph cluster. This lifecycle
starts with the bootstrapping process, when
cephadm creates a tiny
Ceph cluster on a single node. This cluster consists of one monitor and
cephadm then uses the orchestration interface (“day 2”
commands) to expand the cluster, adding all hosts and provisioning all
Ceph daemons and services. Management of this lifecycle can be performed
either via the Ceph command-line interface (CLI) or via the dashboard (GUI).
cephadm is new in Ceph release v15.2.0 (Octopus) and does not support older
versions of Ceph.
- Compatibility and Stability
- Deploying a new Ceph cluster
- Converting an existing cluster to cephadm
- Host Management
- MON Service
- OSD Service
- RGW Service
- MDS Service
- NFS Service
- iSCSI Service
- Custom Container Service
- Monitoring Services
- Service Management
- Upgrading Ceph
- Cephadm operations
- Client Setup
- Cephadm Feature Planning