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https://github.com/terraform-community-modules/tf_aws_elasticsearch

[DEPRECATED] Use https://github.com/terraform-aws-modules/terraform-aws-opensearch
https://github.com/terraform-community-modules/tf_aws_elasticsearch

aws elasticsearch opensearch terraform terraform-modules

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[DEPRECATED] Use https://github.com/terraform-aws-modules/terraform-aws-opensearch

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# tf_aws_elasticsearch



Terraform module for deploying and managing [Amazon Elasticsearch Service](https://aws.amazon.com/documentation/elasticsearch-service/).



This module has two options for creating an Elasticsearch domain:

  1) Create an Elasticsearch domain with a public endpoint. Access policy is then based on the intersection of the following two criteria

     * source IP address

     * client IAM role



     See [this Stack Overflow post](http://stackoverflow.com/questions/32978026/proper-access-policy-for-amazon-elastic-search-cluster) for further discussion of access policies for Elasticsearch.

  2) Create an Elasticsearch domain and join it to a VPC. Access policy is then based on the intersection of the following two criteria:

     * security groups applied to Elasticsearch domain

     * client IAM role



If `vpc_options` option is set, Elasticsearch domain is created within a VPC. If not, Elasticsearch domain is created with a public endpoint



NOTE: **You can either launch your domain within a VPC or use a public endpoint, but you can't do both.** Considering this, adding or removing `vpc_options` will force **DESTRUCTION** of the old Elasticsearch domain and **CREATION** of a new one. More INFO - [VPC support](http://docs.aws.amazon.com/elasticsearch-service/latest/developerguide/es-vpc.html)



Several options affect the resilience and scalability of your Elasticsearch domain.  For a production deployment:



- set `instance_count` to an even number (default: `6`) greater than or equal to the `dedicated_master_threshold` (default: `10`)

- choose an `instance_type` that is not in the T2 family

- set `es_zone_awareness` to `true`.



This will result in a cluster with three dedicated master nodes, balanced across two availability zones.



For a production deployment it may also make sense to use EBS volumes rather that instance storage; to do so, set `ebs_volume_size` greater than 0 and optionally specify a value for `ebs_volume_type` (right now the only supported values are `gp2` and `magnetic`).



## Terraform versions



Terraform 0.12. Pin module version to `~> v1.0`. Submit pull-requests to `master` branch.



Terraform 0.11. Pin module version to `~> v0.0`. Submit pull-requests to `terraform011` branch.



# Usage



Create Elasticsearch domain with public endpoint



```hcl

module "es" {

  source  = "git::https://github.com/terraform-community-modules/tf_aws_elasticsearch.git?ref=v1.1.0"



  domain_name                    = "my-elasticsearch-domain"

  management_public_ip_addresses = ["34.203.XXX.YYY"]

  instance_count                 = 16

  instance_type                  = "m4.2xlarge.elasticsearch"

  dedicated_master_type          = "m4.large.elasticsearch"

  es_zone_awareness              = true

  ebs_volume_size                = 100

}

```



Create Elasticsearch domain within a VPC and CloudWatch logs



```hcl

module "es" {

  source  = "git::https://github.com/terraform-community-modules/tf_aws_elasticsearch.git?ref=v1.1.0"



  domain_name                    = "my-elasticsearch-domain"

  vpc_options                    = {

    security_group_ids = ["sg-XXXXXXXX"]

    subnet_ids         = ["subnet-YYYYYYYY"]

  }

  instance_count                 = 1

  instance_type                  = "t2.medium.elasticsearch"

  dedicated_master_type          = "t2.medium.elasticsearch"

  es_zone_awareness              = false

  ebs_volume_size                = 35

  

  advanced_options = {

    "rest.action.multi.allow_explicit_index" = "true"   # double quotes are required here

  }



  log_publishing_options = [

    {

      cloudwatch_log_group_arn = "arn:aws:logs:eu-central-1:604506250243:log-group:es:*"

      log_type                 = "INDEX_SLOW_LOGS"

      enabled                  = true

    },

    {

      cloudwatch_log_group_arn = "arn:aws:logs:eu-central-1:604506250243:log-group:es:*"

      log_type                 = "SEARCH_SLOW_LOGS"

      enabled                  = true

    },

    {

      cloudwatch_log_group_arn = "arn:aws:logs:eu-central-1:604506250243:log-group:es:*"

      log_type                 = "ES_APPLICATION_LOGS"

      enabled                  = true

    }

  ]

}

```



Create small (4-node) Elasticsearch domain in a VPC with dedicated master nodes



```hcl

module "es" {

  source  = "git::https://github.com/terraform-community-modules/tf_aws_elasticsearch.git?ref=v1.1.0"



  domain_name                    = "my-elasticsearch-domain"

  vpc_options                    = {

    security_group_ids = ["sg-XXXXXXXX"]

    subnet_ids         = ["subnet-YYYYYYYY"]

  }

  instance_count                 = 4

  instance_type                  = "m4.2xlarge.elasticsearch"

  dedicated_master_threshold     = 4

  dedicated_master_type          = "m4.large.elasticsearch"

  es_zone_awareness              = true

  ebs_volume_size                = 100

}

```



## Inputs



| Name | Description | Type | Default | Required |

|------|-------------|:----:|:-----:|:-----:|

| advanced\_options | Map of key-value string pairs to specify advanced configuration options. Note that the values for these configuration options must be strings (wrapped in quotes) or they may be wrong and cause a perpetual diff, causing Terraform to want to recreate your Elasticsearch domain on every apply. | map(string) | `{}` | no |

| create\_iam\_service\_linked\_role | Whether to create IAM service linked role for AWS ElasticSearch service. Can be only one per AWS account. | bool | `"true"` | no |

| dedicated\_master\_threshold | The number of instances above which dedicated master nodes will be used. Default: 10 | number | `"10"` | no |

| dedicated\_master\_type | ES instance type to be used for dedicated masters (default same as instance_type) | string | `"false"` | no |

| domain\_name | Domain name for Elasticsearch cluster | string | `"es-domain"` | no |

| domain\_prefix | String to be prefixed to search domain. Default: tf- | string | `"tf-"` | no |

| ebs\_volume\_size | Optionally use EBS volumes for data storage by specifying volume size in GB (default 0) | number | `"0"` | no |

| ebs\_volume\_type | Storage type of EBS volumes, if used (default gp2) | string | `"gp2"` | no |

| encrypt\_at\_rest | Enable encrption at rest (only specific instance family types support it: m4, c4, r4, i2, i3 default: false) | bool | `"false"` | no |

| enforce\_https | Whether or not to require HTTPS. | bool | `"false"` | no |

| es\_version | Version of Elasticsearch to deploy (default 5.1) | string | `"5.1"` | no |

| es\_zone\_awareness | Enable zone awareness for Elasticsearch cluster (default false) | bool | `"false"` | no |

| es\_zone\_awareness\_count | Number of availability zones used for data nodes (default 2) | number | `"2"` | no |

| instance\_count | Number of data nodes in the cluster (default 6) | number | `"6"` | no |

| instance\_type | ES instance type for data nodes in the cluster (default t2.small.elasticsearch) | string | `"t2.small.elasticsearch"` | no |

| kms\_key\_id | KMS key used for elasticsearch | string | `""` | no |

| log\_publishing\_options | List of maps of options for publishing slow logs to CloudWatch Logs. | list(map(string)) | `[]` | no |

| management\_iam\_roles | List of IAM role ARNs from which to permit management traffic (default ['*']).  Note that a client must match both the IP address and the IAM role patterns in order to be permitted access. | list(string) | `[ "*" ]` | no |

| management\_public\_ip\_addresses | List of IP addresses from which to permit management traffic (default []).  Note that a client must match both the IP address and the IAM role patterns in order to be permitted access. | list(string) | `[]` | no |

| node\_to\_node\_encryption\_enabled | Whether to enable node-to-node encryption. | bool | `"false"` | no |

| snapshot\_start\_hour | Hour at which automated snapshots are taken, in UTC (default 0) | number | `"0"` | no |

| tags | tags to apply to all resources | map(string) | `{}` | no |

| tls\_security\_policy | The name of the TLS security policy that needs to be applied to the HTTPS endpoint. Example values: Policy-Min-TLS-1-0-2019-07 and Policy-Min-TLS-1-2-2019-07. Terraform will only perform drift detection if a configuration value is provided. | string | `"null"` | no |

| use\_prefix | Flag indicating whether or not to use the domain_prefix. Default: true | bool | `"true"` | no |

| vpc\_options | A map of supported vpc options | map(list(string)) | `{ "security_group_ids": [], "subnet_ids": [] }` | no |



## Outputs



| Name | Description |

|------|-------------|

| arn | Amazon Resource Name (ARN) of the domain |

| domain\_id | Unique identifier for the domain |

| domain\_name | The name of the Elasticsearch domain |

| endpoint | Domain-specific endpoint used to submit index, search, and data upload requests |

| kibana\_endpoint | Domain-specific endpoint for kibana without https scheme |



## Authors



Originally created by [Steve Huff](https://github.com/hakamadare), [Alexander Gramovich](https://github.com/ggramal) and [these awesome contributors](https://github.com/terraform-community-modules/tf_aws_elasticsearch/graphs/contributors).



Module managed by [Anton Babenko](https://github.com/antonbabenko).



## License



MIT licensed. See `LICENSE.md` for full details.