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CentOS7x_Install-Elasticsearch5x-in-Stand-Alone-Mode-playbook.yml
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CentOS7x_Install-Elasticsearch5x-in-Stand-Alone-Mode-playbook.yml
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---
################################################################################
# description: Installs Elasticsearch 5x in Stand-Alone Mode on CentOS7x
# usage: ansible-playbook CentOS7x_Install-Elasticsearch5x-in-Stand-Alone-Mode-playbook.yml --extra-vars 'HostOrGroup=YourServerOrGroupNameGoesHere'
# author: Ernest G. Wilson II <ErnestGWilsonII@gmail.com> (https://github.com/ernestgwilsonii)
# license: MIT
################################################################################
# Ansible Playbook options
# REF: http://docs.ansible.com/ansible/playbooks.html
#####################################################
- name: Install Elasticsearch 5x in Stand-Alone Mode on CentOS7x
hosts: "{{ HostOrGroup|default ('FATAL ERROR --> HostOrGroup NOT SET! You must specify either a Host or a Group name!') }}"
serial: "100%"
gather_facts: False
tasks:
# Install or configure repository used on the OS by yum
# REF: https://docs.ansible.com/ansible/yum_repository_module.html
##################################################################
# /etc/yum.repos.d/elasticsearch.repo
- name: Install repository Elasticsearch
yum_repository:
name: elasticsearch
description: Elasticsearch repository
file: elasticsearch
baseurl: https://artifacts.elastic.co/packages/5.x/yum
enabled: yes
gpgcheck: yes
gpgkey: https://packages.elastic.co/GPG-KEY-elasticsearch
# Install yum packages
# REF: http://docs.ansible.com/ansible/yum_module.html
######################################################
- name: Install elasticsearch
yum:
name=elasticsearch
state=latest
# Restart firewalld to make sure it is running OK before changing any rules
# REF: http://docs.ansible.com/ansible/service_module.html
##########################################################
- name: Ensure the firewalld service is enabled and re-started before changing any rules
service:
name=firewalld
enabled=yes
state=restarted
# Update the firewalld configuration
# REF: http://docs.ansible.com/ansible/firewalld_module.html
############################################################
- name: Update firewall to allow port TCP 9200 for incoming Elasticsearch connections
firewalld:
port=9200/tcp
permanent=true
immediate=yes
state=enabled
zone=public
- name: Update firewall to allow port TCP 9300 for incoming Elasticsearch connections
firewalld:
port=9300/tcp
permanent=true
immediate=yes
state=enabled
zone=public
# Use the template module to populate files with data
# REF: http://docs.ansible.com/ansible/template_module.html
###########################################################
# /etc/elasticsearch/elasticsearch.yml
- name: Fill in the variables and copy templates/Elasticsearch/stand-alone-mode-elasticsearch.yml.j2 to remote /etc/elasticsearch/elasticsearch.yml
template:
src=templates/Elasticsearch/stand-alone-mode-elasticsearch.yml.j2
dest=/etc/elasticsearch/elasticsearch.yml
owner=root
group=root
mode=0644
# Enable and start elasticsearch.service
# REF: http://docs.ansible.com/ansible/service_module.html
##########################################################
- name: Enable and start the elasticsearch.service service
service:
name=elasticsearch.service
enabled=yes
state=restarted
# Note: Command line verification:
# systemctl status elasticsearch.service
# systemctl status elasticsearch.service -l
# service elasticsearch status
# cat /etc/elasticsearch/elasticsearch.yml
# cat /var/log/elasticsearch/elasticsearch.log
# cat /var/log/elasticsearch/elasticsearch_index_search_slowlog.log
# cat /var/log/elasticsearch/elasticsearch_index_indexing_slowlog.log
# cat /var/log/elasticsearch/elasticsearch_deprecation.log
# curl 'localhost:9200/_cat/health?v' # Get health
# curl 'localhost:9200/_cat/nodes?v' # Get nodes
# curl 'localhost:9200/_cat/indices?v' # Get indices
# curl -XGET 'http://localhost:9200/_cluster/health?pretty=true'
# curl -XGET 'http://localhost:9200/_cluster/state?pretty'
# curl -XGET http://localhost:9200/_cluster/settings?pretty
# ss -ntlup | grep 9200
# ss -ntlup | grep 9300