template.yml

AWSTemplateFormatVersion: '2010-09-09'
Transform: AWS::Serverless-2016-10-31

Globals:
  Function:
      Runtime: nodejs18.x
      Timeout: 900
      Handler: index.handler

Description: CloudFormation Custom Resources to create EKS IAM Role for Service Account

Resources:
  RoleCreationFunction:
    Type: AWS::Serverless::Function
    Properties:
      CodeUri: ./role_handler
      Policies:
      - Statement:
        - Sid: Default
          Effect: Allow
          Action:
          - eks:DescribeCluster
          - iam:AttachRolePolicy
          - iam:CreateRole
          - iam:DeleteRole
          - iam:DeleteRolePolicy
          - iam:DescribeRole
          - iam:DetachRolePolicy
          - iam:GetRole
          - iam:ListAttachedRolePolicies
          - iam:ListRoles
          - iam:PutRolePermissionsBoundary
          - iam:PutRolePolicy
          - iam:TagRole
          - iam:UntagRole
          - iam:UpdateAssumeRolePolicy
          - iam:UpdateRole
          - sts:GetCallerIdentity
          Resource: '*'

  OIDCIdentityProviderCreationFunction:
    Type: AWS::Serverless::Function
    Properties:
      CodeUri: ./identity_provider_handler
      Policies:
      - Statement:
        - Sid: Default
          Effect: Allow
          Action:
          - eks:DescribeCluster
          - iam:CreateOpenIDConnectProvider
          - iam:DeleteOpenIDConnectProvider
          Resource: '*'

Outputs:
  RoleCreationFunction:
    Description: Role creation Lambda function ARN
    Value: !GetAtt RoleCreationFunction.Arn
    Export:
      Name: EKSIRSARoleCreationFunction
  OIDCIdentityProviderCreationFunction:
    Description: OIDC identity provider creation Lambda function ARN
    Value: !GetAtt OIDCIdentityProviderCreationFunction.Arn
    Export:
      Name: EKSIRSAOIDCIdentityProviderCreationFunction