Terraform Module : terraform-module-launch-template

Terraform Module for AWS Launch Template

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This is a stable example. It should successfully build out of the box

This examples does is built on Construct Libraries marked "Stable" and does not have any infrastructure prerequisites to build.

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General

This module may be used to create Launch Template resources in AWS cloud provider......

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Prerequisites

This module needs Terraform 0.12.19 or newer. You can download the latest Terraform version from here.

This module deploys aws services details are in respective feature branches.

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Features

Below we are able to check the resources that are being created as part of this module call:

• Launch Template

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Usage

Using this repo

To use this module, add the following call to your code:

module "launch_template" {
  source = "git::https://github.com/nitinda/terraform-module-aws-launch-template.git?ref=master"

  providers = {
    aws = aws.services
  }

  name_prefix            = "lt-"
  description            = "EC2 Launch Template"
  ebs_optimized          = true
  image_id               = var.image_id
  monitoring             = { enabled = false }
  tags                   = var.tags
  vpc_security_group_ids = [ var.vpc_security_group_ids ]
  user_data              = base64encode("${data.template_file.template_data.rendered}")
  iam_instance_profile   = { name = module.iam_instance_profile_ec2.name }
  block_device_mappings = []
  tag_specifications    = [
    {
      resource_type = "instance"
      tags          = merge(var.common_tags, map("Name", "demo-ec2-instance",))
    },
    {
      resource_type = "volume"
      tags          = merge(var.common_tags, map("Name", "demo-ec2-instance-volume",))
    }
  ]
}

module "launch_template" {
  source = "git::https://github.com/nitinda/terraform-module-aws-launch-template.git?ref=master"

  providers = {
    aws = aws.services
  }

  name_prefix            = "lt-"
  description            = "RabbitMQ EC2 Launch Template"
  ebs_optimized          = true
  image_id               = data.aws_ami.ami_ubuntu.id
  vpc_security_group_ids = [ module.security_group_ec2.id ]
  user_data              = base64encode("${data.template_file.template_data.rendered}")
  iam_instance_profile   = [
      {
          name = module.iam_instance_profile_ec2.name
      }
  ]
  block_device_mappings = [
      {
          device_name = "/dev/sda1"
          ebs = {
            volume_size = 20
          }
      },
      {
          device_name = "/dev/sdf"
          ebs = {
            volume_size = 20
          }
      }
  ]

  tag_specifications    = [
    {
      resource_type = "instance"
      tags          = merge(var.common_tags, map("Name", "ec2-instance",))
    },
    {
      resource_type = "volume"
      tags          = merge(var.common_tags, map("Name", "ec2-instance-volume",))
    }
  ]
  tags = merge(
    var.common_tags,
    {
      Environment = "prod"
      Name        = "iam-role-ec2"
    }
  )
}

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Inputs

The variables required in order for the module to be successfully called from the deployment repository are the following:

Variable	Description	Type	Argument Status	Default Value
name	The name of the launch template	string	Optional	null
name_prefix	Creates a unique name beginning with the specified prefix	string	Optional	null
description	Description of the launch template	string	Optional	null
block_device_mappings	Specify volumes to attach to the instance besides the volumes specified by the AMI	any	Optional	[]
capacity_reservation_specification	Targeting for EC2 capacity reservations	any	Optional	{}
cpu_options	_The CPU options for the instance	any	Optional	{}
credit_specification	Customize the credit specification of the instance	map(string)	Optional	{}
disable_api_termination	If true, enables EC2 Instance Termination Protection	boolean	Optional	false
ebs_optimized	If true, the launched instance will be EBS Optimized	boolean	Optional	[]
elastic_gpu_specifications	The elastic GPU to attach to the instance	any	Optional	{}
elastic_inference_accelerator	Configuration block containing an Elastic Inference Accelerator to attach to the instance	any	Optional	{}
iam_instance_profile	The IAM Instance Profile to launch the instance with	map(string)	Optional	{}
image_id	The AMI id	string	Required
instance_initiated_shutdown_behavior	Shutdown behavior for the instance	string	Optional	stop
instance_market_options	The market (purchasing) option for the instance	any	Optional	{}
instance_type	The type of the instance	string	Optional	null
kernel_id	The kernel ID	string	Optional	null
key_name	The key name to use for the instance	string	Optional	null
license_specification	A list of license specifications to associate with	map(string)	Optional	{}
metadata_options	Customize the metadata options for the instance	any	Optional	{}
monitoring	The monitoring option for the instance. See Monitoring below for more details	map(string)	Optional	{}
network_interfaces	Customize network interfaces to be attached at instance boot time	any	Optional	{}
placement	The placement of the instance	any	Optional	{}
ram_disk_id	The ID of the RAM disk	string	Optional	null
security_group_names	A list of security group names to associate with	any	Optional	[]
vpc_security_group_ids	A list of security group IDs to associate with	list(string)	Optional	[]
tag_specifications	The tags to apply to the resources during launch	any	Optional	[]
tags	A mapping of tags to assign to the launch template	map(string)	Optional	{}
user_data	The Base64-encoded user data to provide when launching the instance	string	Optional	null
hibernation_options	The hibernation options for the instance	any	Optional	{}

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Outputs

General

This module has the following outputs:

• latest_version
• id
• arn

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Usage

In order for the variables to be accessed on module level please use the syntax below:

module.<module_name>.<output_variable_name>

The output variable is able to be accessed through terraform state file using the syntax below:

data.terraform_remote_state.<module_name>.<output_variable_name>

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Authors

Module maintained by Module maintained by the - Nitin Das