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NOTE: This repo contains only the documentation for the private BoltsOps Pro repo code. Original file: https://github.com/boltopspro/iam-role/blob/master/README.md The docs are publish so they are available for interested customers. For access to the source code, you must be a paying BoltOps Pro subscriber. If are interested, you can contact us at contact@boltops.com or https://www.boltops.com

IAM Role CloudFormation Blueprint

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This blueprint creates a single IAM Role.

Usage

  1. Add blueprint to Gemfile
  2. Configure: configs/iam-role values
  3. Deploy

Add

Add the blueprint to your lono project's Gemfile.

gem "iam-role", git: "git@github.com:boltopspro/iam-role.git"

Configure

First you want to configure the configs files. Use lono seed to configure starter values quickly.

LONO_ENV=development lono seed iam-role

To deploy to additional environments:

LONO_ENV=production  lono seed iam-role

The generated files in config/iam-role folder look something like this:

configs/iam-role/
├── params
│   ├── development.txt
│   └── production.txt
└── variables
    ├── development.rb
    └── production.rb

These files will contain placeholder data so that you can see which values you can modify to configure the stack. The development files will look something like this:

configs/iam-role/params/development.txt:

# Parameter Group: AWS::IAM::Role
# Description=
# MaxSessionDuration=
# Path=
# PermissionsBoundary=
# RoleName=

configs/iam-role/variables/development.rb:

@iam_role_json = <<~JSON
# ... Paste IAM role json here
JSON

@assumed_role_policy_document = {
  Version: "2012-10-17",
  Statement: [
    {
      Effect: "Allow",
      Principal: {
        Service: "ec2.amazonaws.com"
      },
      Action: "sts:AssumeRole"
    }
  ]
}

@managed_policy_arns = ["arn:aws:iam::aws:policy/AmazonSSMManagedInstanceCore"]

@policies = [
  {
    PolicyName: "logs",
    PolicyDocument: {
      Version: "2012-10-17",
      Statement: [
        {
          Effect: "Allow",
          Action: [
            "logs:CreateLogGroup",
            "logs:CreateLogStream",
            "logs:PutLogEvents",
            "logs:DescribeLogStreams"
          ],
          Resource: "arn:aws:logs:*:*:*"
        }
      ]
    }
  }
]

@tags = {Name: sub("${AWS::StackName}")}

Deploy

Use the lono cfn deploy command to deploy. Example:

LONO_ENV=development lono cfn deploy iam-role-development --blueprint iam-role --sure
LONO_ENV=production  lono cfn deploy iam-role-production  --blueprint iam-role --sure

Configure: More Details

Stack Name Convention

By leveraging the lono Stack Name and CLI conventions, we can organize the configs files in a way that matches the stack name. Example:

lono cfn deploy developer   --blueprint iam-role
lono cfn deploy image-server --blueprint iam-role

Will use the corresponding config files:

configs/iam-role/development/developer.txt
configs/iam-role/development/image-server.txt

IAM Permissions

The IAM permissions required for this stack are described below.

Service Description
cloudformation To launch the CloudFormation stack.

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