Terraform module to provision an Elasticsearch cluster with built-in integrations with Kibana and Logstash.
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This module will create:
- Elasticsearch cluster with the specified node count in the provided subnets in a VPC
- Elasticsearch domain policy that accepts a list of IAM role ARNs from which to permit management traffic to the cluster
- Security Group to control access to the Elasticsearch domain (inputs to the Security Group are other Security Groups or CIDRs blocks to be allowed to connect to the cluster)
- DNS hostname record for Elasticsearch cluster (if DNS Zone ID is provided)
- DNS hostname record for Kibana (if DNS Zone ID is provided)
NOTE: To enable zone awareness to deploy Elasticsearch nodes into two different Availability Zones, you need to set zone_awareness_enabled to true and provide two different subnets in subnet_ids.
If you enable zone awareness for your domain, Amazon ES places an endpoint into two subnets.
The subnets must be in different Availability Zones in the same region.
If you don't enable zone awareness, Amazon ES places an endpoint into only one subnet
Basic example
module "elasticsearch" {
source = "git::https://github.com/cloudposse/terraform-aws-elasticsearch.git?ref=master"
namespace = "eg"
stage = "dev"
name = "es"
dns_zone_id = "Z14EN2YD427LRQ"
security_groups = ["sg-XXXXXXXXX", "sg-YYYYYYYY"]
vpc_id = "vpc-XXXXXXXXX"
subnet_ids = ["subnet-XXXXXXXXX", "subnet-YYYYYYYY"]
zone_awareness_enabled = "true"
elasticsearch_version = "6.2"
instance_type = "t2.small.elasticsearch"
instance_count = 4
iam_role_arns = ["arn:aws:iam::XXXXXXXXX:role/ops", "arn:aws:iam::XXXXXXXXX:role/dev"]
iam_actions = ["es:ESHttpGet", "es:ESHttpPut", "es:ESHttpPost"]
encrypt_at_rest_enabled = "true"
kibana_subdomain_name = "kibana-es"
advanced_options {
"rest.action.multi.allow_explicit_index" = "true"
}
}Available targets:
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| Name | Description | Type | Default | Required |
|---|---|---|---|---|
| advanced_options | Key-value string pairs to specify advanced configuration options | map | <map> |
no |
| allowed_cidr_blocks | List of CIDR blocks to be allowed to connect to the cluster | list | <list> |
no |
| attributes | Additional attributes (e.g. 1) |
list | <list> |
no |
| automated_snapshot_start_hour | Hour at which automated snapshots are taken, in UTC | string | 0 |
no |
| create_iam_service_linked_role | Whether to create AWSServiceRoleForAmazonElasticsearchService service-linked role. Set it to false if you already have an ElasticSearch cluster created in the AWS account and AWSServiceRoleForAmazonElasticsearchService already exists. See hashicorp/terraform-provider-aws#5218 for more info |
string | true |
no |
| dedicated_master_count | Number of dedicated master nodes in the cluster | string | 0 |
no |
| dedicated_master_enabled | Indicates whether dedicated master nodes are enabled for the cluster | string | false |
no |
| dedicated_master_type | Instance type of the dedicated master nodes in the cluster | string | t2.small.elasticsearch |
no |
| delimiter | Delimiter to be used between namespace, stage, name and attributes |
string | - |
no |
| dns_zone_id | Route53 DNS Zone ID to add hostname records for Elasticsearch domain and Kibana | string | `` | no |
| ebs_iops | The baseline input/output (I/O) performance of EBS volumes attached to data nodes. Applicable only for the Provisioned IOPS EBS volume type | string | 0 |
no |
| ebs_volume_size | Optionally use EBS volumes for data storage by specifying volume size in GB | string | 0 |
no |
| ebs_volume_type | Storage type of EBS volumes | string | gp2 |
no |
| elasticsearch_version | Version of Elasticsearch to deploy | string | 6.2 |
no |
| enabled | Set to false to prevent the module from creating any resources | string | true |
no |
| encrypt_at_rest_enabled | Whether to enable encryption at rest | string | true |
no |
| encrypt_at_rest_kms_key_id | The KMS key id to encrypt the Elasticsearch domain with. If not specified, then it defaults to using the AWS/Elasticsearch service KMS key | string | `` | no |
| iam_actions | List of actions to allow for the IAM roles, e.g. es:ESHttpGet, es:ESHttpPut, es:ESHttpPost |
list | <list> |
no |
| iam_role_arns | List of IAM role ARNs to permit access to the Elasticsearch domain | list | <list> |
no |
| instance_count | Number of data nodes in the cluster | string | 4 |
no |
| instance_type | Elasticsearch instance type for data nodes in the cluster | string | t2.small.elasticsearch |
no |
| kibana_subdomain_name | The name of the subdomain for Kibana in the DNS zone (e.g. kibana, ui, ui-es, search-ui, kibana.elasticsearch) |
string | kibana |
no |
| log_publishing_application_cloudwatch_log_group_arn | ARN of the CloudWatch log group to which log for ES_APPLICATION_LOGS needs to be published | string | `` | no |
| log_publishing_application_enabled | Specifies whether log publishing option for ES_APPLICATION_LOGS is enabled or not | string | false |
no |
| log_publishing_index_cloudwatch_log_group_arn | ARN of the CloudWatch log group to which log for INDEX_SLOW_LOGS needs to be published | string | `` | no |
| log_publishing_index_enabled | Specifies whether log publishing option for INDEX_SLOW_LOGS is enabled or not | string | false |
no |
| log_publishing_search_cloudwatch_log_group_arn | ARN of the CloudWatch log group to which log for SEARCH_SLOW_LOGS needs to be published | string | `` | no |
| log_publishing_search_enabled | Specifies whether log publishing option for SEARCH_SLOW_LOGS is enabled or not | string | false |
no |
| name | Name of the application | string | - | yes |
| namespace | Namespace (e.g. eg or cp) |
string | - | yes |
| node_to_node_encryption_enabled | Whether to enable node-to-node encryption | string | false |
no |
| security_groups | List of security group IDs to be allowed to connect to the cluster | list | <list> |
no |
| stage | Stage (e.g. prod, dev, staging) |
string | - | yes |
| subnet_ids | Subnet ids | list | - | yes |
| tags | Additional tags (e.g. map(BusinessUnit,XYZ) |
map | <map> |
no |
| vpc_id | VPC ID | string | - | yes |
| zone_awareness_enabled | Enable zone awareness for Elasticsearch cluster | string | true |
no |
| Name | Description |
|---|---|
| domain_arn | ARN of the Elasticsearch domain |
| domain_endpoint | Domain-specific endpoint used to submit index, search, and data upload requests |
| domain_hostname | Elasticsearch domain hostname to submit index, search, and data upload requests |
| domain_id | Unique identifier for the Elasticsearch domain |
| kibana_endpoint | Domain-specific endpoint for Kibana without https scheme |
| kibana_hostname | Kibana hostname |
| security_group_id | Security Group ID to control access to the Elasticsearch domain |
For additional context, refer to some of these links.
- What is Amazon Elasticsearch Service - Complete description of Amazon Elasticsearch Service
- Amazon Elasticsearch Service Access Control - Describes several ways of controlling access to Elasticsearch domains
- VPC Support for Amazon Elasticsearch Service Domains - Describes Elasticsearch Service VPC Support and VPC architectures with and without zone awareness
- Creating and Configuring Amazon Elasticsearch Service Domains - Provides a complete description on how to create and configure Amazon Elasticsearch Service (Amazon ES) domains
- Kibana and Logstash - Describes some considerations for using Kibana and Logstash with Amazon Elasticsearch Service
- Amazon Cognito Authentication for Kibana - Amazon Elasticsearch Service uses Amazon Cognito to offer user name and password protection for Kibana
- Control Access to Amazon Elasticsearch Service Domain - Describes how to Control Access to Amazon Elasticsearch Service Domain
- elasticsearch_domain - Terraform reference documentation for the
elasticsearch_domainresource - elasticsearch_domain_policy - Terraform reference documentation for the
elasticsearch_domain_policyresource
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