Ansible is a wonderful tool for many devops tasks, and can be used to automate Elasticsearch cluster management tasks.
Elasticsearch installation is very easy for a single node cluster - perhaps even a three node cluster - but installing by hand when the number of nodes increases further can become a daunting workload.
Elastic provide an Elasticsearch Ansible role that helps a lot with configuring a host, installing, copying configuration, restarting nodes, and other work required to build a node.
I have posted a tutorial on YouTube showing how to use the basic functionality of the role and install Elasticsearch on a fresh node using Ansible.
Ansible can be used to perform other Elasticsearch tasks such as:
- Updating mappings
- Making sure nodes have the correct roles
- Copying synonym files and scripts to all nodes
- Performing cluster upgrades and rolling restarts
Leave a like or comment on the video if you would like to see more.