terraform-aws-emr-cluster

Terraform module to provision an Elastic MapReduce (EMR) cluster on AWS.

[!TIP]

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Usage

For a complete example, see examples/complete

For automated tests of the complete example using bats and Terratest (which tests and deploys the example on AWS), see test.

provider "aws" {
  region = "us-east-2"
}

module "vpc" {
  source  = "cloudposse/vpc/aws"
  # Cloud Posse recommends pinning every module to a specific version
  # version     = "x.x.x"

  ipv4_primary_cidr_block = "172.19.0.0/16"

  context = module.this.context
}

module "subnets" {
  source = "cloudposse/dynamic-subnets/aws"
  # Cloud Posse recommends pinning every module to a specific version
  # version     = "x.x.x"

  availability_zones   = var.availability_zones
  vpc_id               = module.vpc.vpc_id
  igw_id               = [module.vpc.igw_id]
  ipv4_cidr_block      = [module.vpc.vpc_cidr_block]
  nat_gateway_enabled  = false
  nat_instance_enabled = false

  context = module.this.context
}

module "s3_log_storage" {
  source = "cloudposse/s3-log-storage/aws"
  # Cloud Posse recommends pinning every module to a specific version
  # version     = "x.x.x"
  
  region        = var.region
  namespace     = var.namespace
  stage         = var.stage
  name          = var.name
  attributes    = ["logs"]
  force_destroy = true
}

module "aws_key_pair" {
  source = "cloudposse/key-pair/aws"
  # Cloud Posse recommends pinning every module to a specific version
  # version     = "x.x.x"
  namespace           = var.namespace
  stage               = var.stage
  name                = var.name
  attributes          = ["ssh", "key"]
  ssh_public_key_path = var.ssh_public_key_path
  generate_ssh_key    = var.generate_ssh_key
}

module "emr_cluster" {
  source = "cloudposse/emr-cluster/aws"
  # Cloud Posse recommends pinning every module to a specific version
  # version     = "x.x.x"
  
  namespace                                      = var.namespace
  stage                                          = var.stage
  name                                           = var.name
  master_allowed_security_groups                 = [module.vpc.vpc_default_security_group_id]
  slave_allowed_security_groups                  = [module.vpc.vpc_default_security_group_id]
  region                                         = var.region
  vpc_id                                         = module.vpc.vpc_id
  subnet_id                                      = module.subnets.private_subnet_ids[0]
  route_table_id                                 = module.subnets.private_route_table_ids[0]
  subnet_type                                    = "private"
  ebs_root_volume_size                           = var.ebs_root_volume_size
  visible_to_all_users                           = var.visible_to_all_users
  release_label                                  = var.release_label
  applications                                   = var.applications
  configurations_json                            = var.configurations_json
  core_instance_group_instance_type              = var.core_instance_group_instance_type
  core_instance_group_instance_count             = var.core_instance_group_instance_count
  core_instance_group_ebs_size                   = var.core_instance_group_ebs_size
  core_instance_group_ebs_type                   = var.core_instance_group_ebs_type
  core_instance_group_ebs_volumes_per_instance   = var.core_instance_group_ebs_volumes_per_instance
  master_instance_group_instance_type            = var.master_instance_group_instance_type
  master_instance_group_instance_count           = var.master_instance_group_instance_count
  master_instance_group_ebs_size                 = var.master_instance_group_ebs_size
  master_instance_group_ebs_type                 = var.master_instance_group_ebs_type
  master_instance_group_ebs_volumes_per_instance = var.master_instance_group_ebs_volumes_per_instance
  create_task_instance_group                     = var.create_task_instance_group
  log_uri                                        = format("s3n://%s/", module.s3_log_storage.bucket_id)
  key_name                                       = module.aws_key_pair.key_name
}

[!IMPORTANT] In Cloud Posse's examples, we avoid pinning modules to specific versions to prevent discrepancies between the documentation and the latest released versions. However, for your own projects, we strongly advise pinning each module to the exact version you're using. This practice ensures the stability of your infrastructure. Additionally, we recommend implementing a systematic approach for updating versions to avoid unexpected changes.

Makefile Targets

Available targets:

  help                                Help screen
  help/all                            Display help for all targets
  help/short                          This help short screen
  lint                                Lint terraform code

Requirements

Providers

Modules

Resources

Inputs

list(object({
    path = string
    name = string
    args = list(string)
  }))

{
  "additional_tag_map": {},
  "attributes": [],
  "delimiter": null,
  "descriptor_formats": {},
  "enabled": true,
  "environment": null,
  "id_length_limit": null,
  "label_key_case": null,
  "label_order": [],
  "label_value_case": null,
  "labels_as_tags": [
    "unset"
  ],
  "name": null,
  "namespace": null,
  "regex_replace_chars": null,
  "stage": null,
  "tags": {},
  "tenant": null
}

[
  "default"
]

list(object({
    name              = string
    action_on_failure = string
    hadoop_jar_step = object({
      args       = list(string)
      jar        = string
      main_class = string
      properties = map(string)
    })
  }))

Outputs

Related Projects

Check out these related projects.

• terraform-aws-rds-cluster - Terraform module to provision an RDS Aurora cluster for MySQL or Postgres
• terraform-aws-rds - Terraform module to provision AWS RDS instances
• terraform-aws-rds-cloudwatch-sns-alarms - Terraform module that configures important RDS alerts using CloudWatch and sends them to an SNS topic

[!TIP]

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✨ Contributing

This project is under active development, and we encourage contributions from our community.

Many thanks to our outstanding contributors:

For 🐛 bug reports & feature requests, please use the issue tracker.

In general, PRs are welcome. We follow the typical "fork-and-pull" Git workflow.

1. Review our Code of Conduct and Contributor Guidelines.
2. Fork the repo on GitHub
3. Clone the project to your own machine
4. Commit changes to your own branch
5. Push your work back up to your fork
6. Submit a Pull Request so that we can review your changes

NOTE: Be sure to merge the latest changes from "upstream" before making a pull request!

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License

Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements.  See the NOTICE file
distributed with this work for additional information
regarding copyright ownership.  The ASF licenses this file
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License.  You may obtain a copy of the License at

  https://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, either express or implied.  See the License for the
specific language governing permissions and limitations
under the License.

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