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README.md

Overview#

This is a simple Ansible playbook to setup a Rook Storage Cluster inside an already available Kubernetes Cluster.

Pre-Requisites#

Node in the k8s_master group of the inventory/hosts.cfg is the Kubernetes cluster's master node. It's assumed that kubectl command is available and setup there for the tasks in the playbook to work. Along with the Kubernetes cluster, Rook Operator also need to be setup in the same cluster as mentioned here

Approach & Configuration#

The approach to setup Rook Storage cluster in this playbook is that a particular mount point in all the nodes assigned for storage will be used as the storage cluster's directories. This same information is mentioned in the templates/rook-cluster-config.ymk.j2.

Along with the Rook cluster, this playbook also sets up Rook Toolbox required to monitor the Rook / Ceph cluster.

The storage_nodes in the inventory/hosts.cfg denotes the storage node details. Other relvant values for the Rook cluster setup is in the inventory/group_vars/k8s_master.yml. The inventory/group_vars/all/vault.yml contain some sensitive information like the actual IPs and ssh user, please make sure to edit them before executing the playbook.

For more details check on Rook, Rook Cluster setup template and Rook toolbox

Playbook execution#

$ ansible-playbook -i inventory/hosts.cfg -kK -v --ask-vault-pass playbook.yml