Elasticsearch Terraform Module

Terraform module for creating Elasticsearch nodes and various cluster topologies.

Usage

module "es" {
  source       = "git::https://github.com/danisla/terraform-google-elasticsearch.git?ref=v1.0.0"
  name         = "es-single-node"
  region       = "us-central1"
  zones        = ["us-central1-f"]
  machine_type = "n1-standard-1"
  heap_size    = "2g"
  master_node  = true
  data_node    = true
  disk_size_gb = 50
}

Examples

single-node

Example single node cluster deployment.

multi-node

Example multi-node cluster deployment

multi-node-stateful

Similar example as the multi-node cluster deployment but with data nodes outside of a instance group manager.

Module Best Practices

• Rebuild disk images using the packer repository.
• Set disk_auto_delete = false in production to avoid losing data when instances are recreated.

Scaling

In the multi-node example each node tier can be scaled independently. When scaling UP, simply, increase the number of nodes using the num_nodes module variable. The new nodes will be created by the Regional Instance Group Manager and the index shards will self-balance.

Upgrading

TBD

Monitoring

TBD