ansible-role-elasticsearch

Overview

This role installs and configures Elasticsearch easily.

What It Does

• Installs Elasticsearch
• Configures Elasticsearch settings
• Sets up secure HTTP and transport TLS
• Creates passwords for built-in user accounts
• Syncs all configurations with the Ansible controller for later use

You can change default settings using a YAML dictionary called elastic_config.

Requirements

• No additional requirements.

Dependencies

• Java must be installed on the target system.
• Generate certificates for secure communications if needed.

You can use other Ansible roles for these tasks, like geerlingguy.java and nkakouros.easyrsa. Check the example playbook for guidance.

Role Variables

See the defaults/main.yml file for available variables and their descriptions.

By default, this role simply installs Elasticsearch and sets it up as a master, data, and ingest node.

Comparison with Other Roles

Before creating this role, I tried:

• geerlingguy/ansible-role-elasticsearch
• elastic/ansible-elasticsearch

These didn’t meet my needs. The first one is too basic and often has delays in updates. The second is complicated with outdated code and confusing documentation.

Example Playbook

Here’s a simple example to quickly install Elasticsearch without certificates for development:

- hosts: elastic-server
  roles:
    - nkakouros.elasticsearch

For a complete example to set up a full ELK stack, check the molecule/default/ folder. The prepare.yml file installs necessary dependencies, and the playbook.yml file provides a detailed example of using this role.

License

GPLv3

Author

Nikolaos Kakouros (nkak@kth.se)