installation.md

Installation

ssh keys exchange

Choose an admin node to use for the installation process. Distribute the ssh key to all the hosts in the cluster.

Install the deploy script

Add the ceph repository

yum install ceph-deploy
yum install ntp ntpdate ntp-doc

Purge cluster

ceph-deploy purge qn-cnfslhc ds-001 ds-002 ds-303 ds-304 ds-507
ceph-deploy purgedata qn-cnfslhc ds-001 ds-002 ds-303 ds-304 ds-507
ceph-deploy forgetkeys

Create first monitor nodes:

ceph-deploy new qn-cnfslhc

This will create the following files:

ceph.conf
ceph.mon.keyring

Add the public network to the configuration file:

public_network = 131.154.128.0/22

and then deploy the initial monitoring node:

ceph-deploy mon create-initial

and the admin keys to the nodes of your cluster

ceph-deploy admin qn-cnfslhc

Then deploy the manager node

ceph-deploy -v mgr create qn-cnfslhc

If you have a dirty installation you may receive errors like:

[qn-cnfslhc][ERROR ] [errno 1] error connecting to the cluster
[qn-cnfslhc][ERROR ] exit code from command was: 1
[ceph_deploy.mgr][ERROR ] could not create mgr
[ceph_deploy][ERROR ] GenericError: Failed to create 1 MGRs

This means that you must remove the old keys from /var/lib/ceph

rm -rf /var/lib/ceph/bootstrap-mgr/

Enable dashboard

yum install ceph-mgr-dashboard # for nautilus
ceph mgr module enable dashboard
ceph config set mgr mgr/dashboard/$name/server_addr 131.154.130.69
ceph config set mgr mgr/dashboard/$name/server_port 5000
ceph dashboard set-login-credentials admin <password>

Add a monitor node