---

# Configure Elasticsearch Node

#Use systemd for the following distributions:
#
#Ubuntu 15 and up
#Debian 8 and up
#Centos 7 and up
#Relies on elasticsearch distribution installing a serviced script to determine whether one should be copied.


- set_fact: use_system_d={{(ansible_distribution == 'Debian' and ansible_distribution_version | version_compare('8', '>=')) or (ansible_distribution == 'CentOS' and ansible_distribution_version | version_compare('7', '>=')) or (ansible_distribution == 'Ubuntu' and ansible_distribution_version | version_compare('15', '>=')) }}

- set_fact: instance_sysd_script={{sysd_script | dirname }}/{{es_instance_name}}_{{sysd_script | basename}}
  when: use_system_d

#For directories we also use the {{inventory_hostname}}-{{ es_instance_name }} - this helps if we have a shared SAN.

- set_fact: pid_dir={{ es_pid_dir }}/{{inventory_hostname}}-{{ es_instance_name }}

- set_fact: data_dir={{ es_data_dir }}/{{inventory_hostname}}-{{ es_instance_name }}

- set_fact: log_dir={{ es_log_dir }}/{{inventory_hostname}}-{{ es_instance_name }}

- set_fact: work_dir={{ es_work_dir }}/{{inventory_hostname}}-{{ es_instance_name }}

#Create required directories
- name: Create PID Directory
  file: path={{ pid_dir }} state=directory owner={{ es_user }} group={{ es_group }}

- name: Create data dir
  file: state=directory path={{ data_dir }} owner={{ es_user }} group={{ es_group }}

- name: Create work dir
  file: state=directory path={{ work_dir }} owner={{ es_user }} group={{ es_group }}

- name: Create log dir
  file: state=directory path={{ log_dir }} owner={{ es_user }} group={{ es_group }}

- name: Create Config Directory
  file: path={{ conf_dir }} state=directory owner={{ es_user }} group={{ es_group }}

- name: Create Plugin Directory
  file: state=directory path={{ plugin_dir }} owner={{ es_user }} group={{ es_group }}

#Copy the config template
- name: Copy Configuration File
  template: src=elasticsearch.yml.j2 dest={{conf_dir}}/elasticsearch.yml owner={{ es_user }} group={{ es_group }} mode=0644 force=yes
  notify: restart elasticsearch

#Copy the instance specific default file
- name: Copy Default File for Instance
  template: src=elasticsearch.j2 dest={{instance_default_file}} mode=0644 force=yes
  notify: restart elasticsearch

#Copy the instance specific init file
- name: Copy Debian Init File for Instance
  template: src=init/debian/elasticsearch.j2 dest={{instance_init_script}} mode=0755 force=yes
  when: ansible_os_family == 'Debian'
  notify: restart elasticsearch

#Copy the instance specific init file
- name: Copy Redhat Init File for Instance
  template: src=init/redhat/elasticsearch.j2 dest={{instance_init_script}} mode=0755 force=yes
  when: ansible_os_family == 'RedHat'
  notify: restart elasticsearch

#Copy the systemd specific file if systemd is installed
- name: Copy Systemd File for Instance
  template: src=systemd/elasticsearch.j2 dest={{instance_sysd_script}} mode=0644 force=yes
  when: use_system_d
  notify: restart elasticsearch

#Copy the logging.yml
- name: Copy Logging.yml File for Instance
  template: src=logging.yml.j2 dest={{conf_dir}}/logging.yml owner={{ es_user }} group={{ es_group }} mode=0644 force=yes
  notify: restart elasticsearch

#Clean up un-wanted package scripts to avoid confusion

- name: Delete Default Init
  file: dest=/etc/init.d/elasticsearch state=absent

- name: Delete Default Environment File
  file: dest=/etc/default/elasticsearch state=absent
  when: ansible_os_family == 'Debian'

- name: Delete Default Environment File
  file: dest=/etc/sysconfig/elasticsearch state=absent
  when: ansible_os_family == 'RedHat'

- name: Delete Default Sysconfig File
  file: dest=/usr/lib/systemd/system/elasticsearch.service state=absent