---

# Configure Elasticsearch Node

# Create an instance specific default file
- name: Copy Default File for Instance
  command: creates={{instance_default_file}} cp "{{default_file}}"  "{{instance_default_file}}"
  when: instance_default_file != default_file

- debug: msg="DEBUG {{ hostvars[inventory_hostname] }}"

# Create an instance specific init file
- name: Copy Init File for Instance
  command: creates={{instance_init_script}} cp "{{init_script}}" "{{instance_init_script}}"
  when: instance_init_script != init_script


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

#Copy the config template
- name: Copy configuration file
  template: src=elasticsearch.yml.j2 dest={{instance_config_directory}}/elasticsearch.yml owner={{ es_user }} group={{ es_group }} mode=0644 force=yes

# Apply changes to the default file for this instance
- name: Configure config directory
  lineinfile: dest={{instance_default_file}} regexp="^CONF_DIR" insertafter="^#CONF_DIR" line="CONF_DIR={{ instance_config_directory }}"
  register: elasticsearch_configure

- name: Configure config file
  lineinfile: dest={{instance_default_file}} regexp="^CONF_FILE" insertafter="^#CONF_FILE" line="CONF_FILE={{ instance_config_directory }}/elasticsearch.yml"
  register: elasticsearch_configure

- name: Configure memory in defaults
  lineinfile: dest={{instance_default_file}} regexp="^ES_HEAP_SIZE" insertafter="^#ES_HEAP_SIZE" line="ES_HEAP_SIZE={{ es_heap_size }}"
  when: es_heap_size is defined
  register: elasticsearch_configure

#We only have to set these if they are specified. The start scripts will by default use the NAME set later on constructing directory names to avoid collisions.

- name: Configure max open files
  lineinfile: dest={{instance_default_file}} regexp="^MAX_OPEN_FILES" insertafter="^#MAX_OPEN_FILES" line="MAX_OPEN_FILES={{ es_max_open_files }}"
  when: es_max_open_files is defined
  register: elasticsearch_configure

#For directories we also use the {{ es_config['node_name_prefix'] }}{{inventory_hostname}} - this helps if we have a shared SAN.  {{es_config['node_name_prefix']}}{{default_file | basename} could potentially be used -
#init script effectively means this is the default.

#Create PID directory
- name: Create PID Directory
  file: path={{pid_dir}}/{{ es_config['node_name_prefix'] }}{{inventory_hostname}} state=directory owner={{ es_user }} group={{ es_group }}

- name: Configure PID directory
  lineinfile: dest={{instance_default_file}} regexp="^PID_DIR" insertafter="^#PID_DIR" line="PID_DIR={{pid_dir}}/{{ es_config['node_name_prefix'] }}{{inventory_hostname}}"
  register: elasticsearch_configure

- set_fact: es_data_dir={{default_data_dir}}
  when: es_data_dir is undefined

#include the host name as potentially shared SAN
- name: Create data dir
  file: state=directory path={{ es_data_dir }}/{{ es_config['node_name_prefix'] }}{{inventory_hostname}} owner={{ es_user }} group={{ es_group }}

- name: Configure data store
  lineinfile: dest={{instance_default_file}} regexp="^DATA_DIR" insertafter="^#DATA_DIR" line="DATA_DIR={{ es_data_dir }}/{{ es_config['node_name_prefix'] }}{{inventory_hostname}}"
  register: elasticsearch_configure

- set_fact: es_work_dir={{default_work_dir}}
  when: es_work_dir is undefined

- name: Create work dir
  file: state=directory path={{ es_work_dir }}/{{ es_config['node_name_prefix'] }}{{inventory_hostname}} owner={{ es_user }} group={{ es_group }}

- name: Configure work directory
  lineinfile: dest={{instance_default_file}} regexp="^WORK_DIR" insertafter="^#WORK_DIR" line="WORK_DIR={{ es_work_dir }}/{{ es_config['node_name_prefix'] }}{{inventory_hostname}}"
  register: elasticsearch_configure

- set_fact: es_log_dir={{default_log_dir}}
  when: es_log_dir is undefined

- name: Create log dir
  file: state=directory path={{ es_log_dir }}/{{ es_config['node_name_prefix'] }}{{inventory_hostname}} owner={{ es_user }} group={{ es_group }}

- name: Configure log directory
  lineinfile: dest={{instance_default_file}} regexp="^LOG_DIR" insertafter="^#LOG_DIR" line="LOG_DIR={{ es_log_dir }}/{{ es_config['node_name_prefix'] }}{{inventory_hostname}}"
  register: elasticsearch_configure

#required so that the ES_HOME does not change between instances

- name: Configure elasticsearch home
  lineinfile: dest={{instance_default_file}} regexp="^ES_HOME" insertafter="^#ES_HOME" line="ES_HOME={{es_home}}"
  register: elasticsearch_configure

- name: Configure elasticsearch user
  lineinfile: dest={{instance_default_file}} regexp="^ES_USER" insertafter="^#ES_USER" line="ES_USER={{ es_user }}"
  when: es_user is defined
  register: elasticsearch_configure

- name: Configure elasticsearch group
  lineinfile: dest={{instance_default_file}} regexp="^ES_GROUP" insertafter="^#ES_GROUP" line="ES_GROUP={{ es_group }}"
  when: es_group is defined
  register: elasticsearch_configure

#Apply changes to init script - NAME can be changed in Debian start script
- name: Name Node in Init Script
  lineinfile: dest={{instance_init_script}} regexp="^NAME" line="NAME={{es_config['node_name_prefix']}}{{default_file | basename}}"
  register: elasticsearch_configure
  when: ansible_os_family == 'Debian'

- debug: msg="For {{ instance_init_script }} using default {{ instance_default_file }}"

- name: Environment in Init Script
  lineinfile: dest={{instance_init_script}} regexp="^ES_ENV_FILE" line="ES_ENV_FILE={{instance_default_file}}"
  register: elasticsearch_configure
  when: ansible_os_family == 'RedHat'