Ceph/MicroCeph

MicroCeph

Ubuntu 22.04 LTS MicroCeph with Snap

These installation instructions use MicroCeph - Ceph in a snap. MicroCeph is a pure upstream Ceph distribution designed for small scale and edge deployments, which can be installed and maintained with minimal knowledge and effort.

Install Ceph on Ubuntu | Ubuntu
https://ubuntu.com/ceph/install

Note: If snap is not installed:

sudo apt install snapd

Install microceph:

sudo snap install microceph

Bootstrap cluster from first node:

sudo microceph cluster bootstrap

From first node add other nodes:

sudo microceph cluster add node[x]

Copy join output onto node[x]:

sudo microceph cluster join [pasted-output-from-node1]

Check status:

sudo microceph.ceph status

Add some disks to each node (as OSDs):

sudo microceph disk add /dev/sd[x] --wipe

Config files are found at:

/var/snap/microceph/current/conf/
  /var/snap/microceph/current/conf/ceph.conf
  /var/snap/microceph/current/conf/metadata.yaml
  /var/snap/microceph/current/conf/ceph.keyring

ln -s /var/snap/microceph/current/conf/ceph.conf /etc/ceph/ceph.conf

Verify cluster:

sudo microceph.ceph status
sudo microceph.ceph osd status

microceph disk list

Documentation

Charmed Ceph Documentation | Ubuntu
https://ubuntu.com/ceph/docs