elasticsearch.yaml

# This playbook prepares the elasticsearch servers for a given inventory.
---
- hosts: elasticsearch
  sudo:  true

  vars:
    elasticsearch_version: 1.2.2

    elasticsearch_plugins:
      - name: mobz/elasticsearch-head

    elasticsearch_discovery_zen_ping_multicast_enabled: false
    elasticsearch_discovery_zen_ping_unicast_hosts:     "{{ groups['elasticsearch'] }}"
    elasticsearch_gateway_recover_after_nodes:          "{{ groups['elasticsearch']|length }}"
    elasticsearch_index_number_of_replicas:             "{{ groups['elasticsearch']|length - 1 }}"
    elasticsearch_number_of_replicas:                   "{{ groups['elasticsearch']|length - 1 }}"  # This is a hack to work around a bug in the gpstathis.elasticsearch role
    elasticsearch_memory_bootstrap_mlockall:            true

    elasticsearch_node_master: "{{ 'true' if [ansible_hostname, ansible_domain]|join('.') == 
                                             groups['elasticsearch']|first
                                   else 'false' }}"

    elasticsearch_node_name:                     node-{{ ansible_hostname }}
    elasticsearch_node_max_local_storage_nodes:  1
    elasticsearch_slowlog_threshold_fetch_warn:  3s
    elasticsearch_slowlog_threshold_query_debug: 2s
    elasticsearch_slowlog_threshold_query_warn:  3s
    elasticsearch_service_startonboot: yes
    elasticsearch_thread_pools:
      - 'threadpool.bulk.queue_size: -1'
      - 'indices.fielddata.cache.size: 50%'  # This is a hack and should be done somewhere else
      - 'script.disable_dynamic: false'      #

    elasticsearch_timezone: America/Phoenix

  roles:
    - role: notify-chat
      msg: "Updating elasticsearch"
    - gpstathis.elasticsearch
    - { role: elasticsearch-master, when: elasticsearch_node_master }
    - role: notify-chat
      msg: "Done updating elasticsearch"