Apache Solr (SolrCloud)

Ansible role for installing and configuring Apache SolrCloud on RHEL / CentOS 7.

This role can be used to install and cluster multiple Solr nodes, this uses all hosts defined for the "solr" group in the inventory file by default.

Requirements

Platform: RHEL / CentOS 7

Java: Java 8 Zookeeper:

The Zookeeper role from Ansible Galaxy can be used if one is needed.

$ ansible-galaxy install sleighzy.zookeeper

Role Variables

solr_version - Solr version
solr_auth_user - Solr admin user
solr_auth_pass - Solr admin password
solr_port - Solr port
solr_zookeeper_hosts - Zookeeper connection string (e.g. server-1:2181,server-2:2181,server-3:2181)
solr_zookeeper_client_timeout - Zookeeper client timeout

solr_servers: "{{groups['solr']}}" - Group of solr servers

Default Ports

Port	Description
2181	Client connection port
2888	Quorum port for clustering
3888	Leader election port for clustering
8983	Solr Web Client

Default Directories and Files

Description	Directory / File
Installation directory	`/opt/solr/solr-<version>`
Symlink to install directory	`/opt/solr`
Configuration	`/etc/default/solr.in.sh`
Log files	`/var/log/solr`
Solr home directory	`/var/solr`
Data directory	`/var/solr/data`
Systemd service	`/usr/lib/systemd/system/solr.service`

Starting and Stopping ZooKeeper services

The ZooKeeper service can be started via: systemctl start zookeeper
The ZooKeeper service can be stopped via: systemctl stop zookeeper

Starting and Stopping Solr services

The Solr service can be started via: systemctl start solr
The Solr service can be stopped via: systemctl stop solr

Dependencies

Zookeeper

Example Playbook

- hosts: zookeeper-nodes

  tasks:
  - name: Install Java 8 (OpenJDK)
    yum:
      name: java-1.8.0-openjdk
      state: latest

  roles:
    - sleighzy.zookeeper

# Install Solr
- hosts: solr-nodes

  tasks:
  - name: Install Java 8 (OpenJDK)
    yum:
      name: java-1.8.0-openjdk
      state: latest
      
  - name: Install lsof
    yum:
      name: lsof
      state: latest

  roles:
    - ansible-solrcloud

renepajta/ansible-solrcloud