oidc-setup.yaml

Parameters:
  GithubOrg:
    Type: String
    Default: example-org
  RepoName:
    Type: String
    Default: cfn-cicd
  RoleName:
    Type: String
    Default: GitHubOidcRole

Resources:
  Role:
    Type: AWS::IAM::Role
    Properties:
      RoleName: !Ref RoleName
      AssumeRolePolicyDocument: 
        Statement:
          - Effect: Allow
            Action: sts:AssumeRoleWithWebIdentity
            Principal: 
              Federated: !Ref GithubOidc
            Condition:
              StringLike: 
                token.actions.githubusercontent.com:sub: !Sub repo:${GithubOrg}/${RepoName}:*
      Policies:
        - PolicyName: GitHubOidcPolicy
          PolicyDocument:
            Version: '2012-10-17'
            Statement:
              - Effect: Allow
                Action: sts:AssumeRole
                Resource: !Sub arn:aws:iam::${AWS::AccountId}:role/cdk-*

  GithubOidc:
    Type: AWS::IAM::OIDCProvider
    Properties:
      Url: https://token.actions.githubusercontent.com
      ThumbprintList: [1b511abead59c6ce207077c0bf0e0043b1382612]
      ClientIdList: 
        - sts.amazonaws.com

Outputs:
  Role:
    Value: !GetAtt Role.Arn