ophidia-cluster

Role Name

The ansible role deploys and configures all services required for an Ophidia cluster.

Introduction

The repository contains ansible-roles that are published in ansible galaxy: https://galaxy.ansible.com/indigo-dc/ophidia-cluster/

Requirements

No additional requirements

Role Variables

Role variables for Ophidia cluster are:

cert_passwd: the password for the certificates and user account
ophdb_passwd: the password for MySQL
oph_user: user that will run the framework
base_path: base path for shared data folder
server_ip: Ophidia server ip address
compute_subnet: subnetwork for Ophidia io-compute nodes
mysql_subnet: subnetwork for Ophidia io-compute nodes (for database grant)
deploy_type: type of deployment ('install' or 'configure')
io_nodes_ips: list of IPs of io-compute nodes
node_type: type of node ('server' or 'io')

Dependencies

It requires indigo-dc.nfs and indigo-dc.slurm ansible role.

Example Playbook

An example of playbook to install an Ophidia cluster:

---
- hosts: oph-server
  roles:
    - {role: 'indigo-dc.ophidia-cluster', node_type: 'server', deploy_type: 'install'}

- hosts: oph-io
  roles:
    - {role: 'indigo-dc.ophidia-cluster', node_type: 'io', deploy_type: 'install'}

An example of playbook to configure an Ophidia cluster:

---
- hosts: oph-server
  roles:
    - {role: 'indigo-dc.ophidia-cluster', node_type: 'server', deploy_type: 'configure', io_nodes_ips: "{{ groups['oph-io']|map('extract', hostvars, 'ansible_default_ipv4')|list }}", mysql_subnet: "{{ ansible_default_ipv4.network }}/{{ ansible_default_ipv4.netmask }}", compute_subnet: "{{ ansible_default_ipv4.network }}/24", server_ip: '{{ ansible_default_ipv4.address }}'}

- hosts: oph-io
  roles:
    - {role: 'indigo-dc.ophidia-cluster', node_type: 'io', deploy_type: 'configure', mysql_subnet: "{{ ansible_default_ipv4.network }}/{{ ansible_default_ipv4.netmask }}", server_ip: "{{hostvars['oph-server']['ansible_default_ipv4']['address']}}"}