cassandra.yml

---
# Copyright (c) 2014 Lekane Oy. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
#    * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#    * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
#    * Neither the name of Lekane Oy nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# Create/configure Cassandra cluster & OpsCenter
# ==============================================
#
# To create node for new empty cluster: 
# ansible-playbook -i <inventory> --extra-vars="init_server=true empty_cluster=true" cassandra.yml 
#
# To create node for existing cluster: 
# ansible-playbook -i <inventory> --extra-vars="init_server=true" cassandra.yml 
#
# To replace node in existing cluster: 
# ansible-playbook -i <inventory> --extra-vars="init_server=true replace_dead_server=true replace_address=<address>" -l <node_to_replace> cassandra.yml 
#
# To update/upgrade nodes in existing cluster:
# ansible-playbook -i <inventory> cassandra.yml 
#
# To update/upgrade node extra config (backup, cron etc) without configuring & restarting main Cassandra service in existing cluster:
# ansible-playbook -i <inventory> --extra-vars="restart_cassandra=false" cassandra.yml 
#
# To target specific node/nodes, add -l node1[:node2][:nodeN]

- name: Cassandra base requirements installation
  hosts:
    - all_cassandra_nodes
  user: install_user
  sudo: yes
  environment: "{{ proxy_env }}"
  roles:
  - { role: cassandra_common, tags: ['cassandra_common'] }

- name: Cassandra installation
  serial: 1
  hosts:
    - cassandra_nodes
  user: install_user
  sudo: yes
  environment: "{{ proxy_env }}"
  roles:
  - { role: cassandra, tags: ['cassandra'] }

- name: OpcCenter installation
  hosts: all_cassandra_nodes
  user: install_user
  sudo: yes
  environment: "{{ proxy_env }}"
  roles:
  - { role: opscenter, tags: ['opscenter'], when: install_version == "dse" and (opscenter_enabled | default(false)) == "true"  }

- name: Cassandra cron install
  hosts: cassandra_nodes
  user: install_user
  sudo: yes
  environment: "{{ proxy_env }}"
  roles:
  - { role: cassandra_cron, tags: ['cron'] }

- name: Spark install
  hosts: 
    - spark_master_nodes
    - cassandra_nodes
  user: install_user
  sudo: yes
  environment: "{{ proxy_env }}"
  roles:
  - { role: spark, tags: ['spark'], when: install_version == "apache" and (spark_enabled | default(false)) == "true" }