Skip to main content
Version: 1.0

How to Prepare and Use Ceph Ansible

Introduction​

Should you want to reconfigure your Private Cloud's Ceph cluster, you can do so using Ceph Ansible. In this guide, we explain how to prepare an environment from which Ceph Ansible can be used. Making specific configuration changes to your Ceph cluster is outside the scope of this guide.

Prerequisites​

Root Access to OpenStack Control Plane​

Root access to your cloud's control plane nodes is required.

Path to the Ceph Configuration Files​

  • Ceph Ansible Inventory
    • /etc/fm-deploy/ceph-inventory.yml
  • Ceph Ansible Config
    • /opt/ceph-ansible/group_vars/all.yml

Preparation​

To prepare Ceph Ansible:

docker cp fm-deploy:/opt/ceph-ansible /opt/ceph-ansible
chmod 700 /opt/ceph-ansible
cd /opt/ceph-ansible
virtualenv .venv
source .venv/bin/activate
pip install -r requirements.txt
pip install six

Deploy a Ceph Cluster:

ansible-playbook \
    -i /etc/fm-deploy/ceph-inventory.yml \
    --private-key /root/.ssh/fm-deploy \
    /opt/ceph-ansible/site.yml

Attempt to repair a broken Ceph cluster:

ansible-playbook \
    -i /etc/fm-deploy/ceph-inventory.yml \
    --private-key /root/.ssh/fm-deploy \
    /opt/ceph-ansible/site.yml