Cloudformation template to create codebuild service for scala libraries

codebuild-4scala_cfn.yml

# Code pipeline for scala applications
AWSTemplateFormatVersion: '2010-09-09'

Description: >
  Template to create codebuild service for components and libraries

#
#--------------------------------------------------------------------------
# PARAMETERS
#--------------------------------------------------------------------------
#
# Required and optional parameters to create simple build service
#
Parameters:

  #
  #--------------------------------------------------------------------------
  # General application settings
  #--------------------------------------------------------------------------
  #
  AppName:
    Description: Name of the application
    Type: String

  CodacyProjectToken:
    Description: Codacy Prject token for submitting code coverage information
    Type: String
    NoEcho: true

  #
  #--------------------------------------------------------------------------
  # GitHub settings
  #--------------------------------------------------------------------------
  #
  GitHubOwner:
    Type: String
    Description: GitHub repository owner
  GitHubRepo:
    Type: String
    Description: GitHub repository name
  GitHubBranch:
    Type: String
    Default: master
    Description: GitHub repository branch


  #
  #--------------------------------------------------------------------------
  # Code build settings
  #--------------------------------------------------------------------------
  #
  CodeBuildComputeType:
    Description: The build compute type
    Type: String
    Default: BUILD_GENERAL1_SMALL
    AllowedValues:
    - BUILD_GENERAL1_SMALL
    - BUILD_GENERAL1_MEDIUM
    - BUILD_GENERAL1_LARGE
  CodeBuildDockerImage:
    Description: The docker image to be used for code build
    Type: String
    Default: onema/scala-sbt:8u171-2.12.6-1.2.1-build


Metadata:
  AWS::CloudFormation::Interface:
    ParameterGroups:
    - Label:
        default: "Application Settings"
      Parameters:
      - AppName
      - CodacyProjectToken
    - Label:
        default: "CodeBuild Settings"
      Parameters:
      - CodeBuildComputeType
      - CodeBuildDockerImage
    - Label:
        default: "GitHub Settings"
      Parameters:
      - GitHubBranch
      - GitHubOwner
      - GitHubRepo

#
#--------------------------------------------------------------------------
# RESOURCES
#--------------------------------------------------------------------------
#
# Definition of all the resources required for the service
#
Resources:

  #
  #--------------------------------------------------------------------------
  # CodeBuild Role and permissions.
  #--------------------------------------------------------------------------
  #
  CodeBuildDeploymentRole:
    Type: AWS::IAM::Role
    Properties:
      RoleName: !Sub "${AppName}-code-build-role"
      AssumeRolePolicyDocument:
        Version: "2012-10-17"
        Statement:
        - Effect: "Allow"
          Principal:
            Service:
            - "codebuild.amazonaws.com"
          Action:
          - "sts:AssumeRole"
      ManagedPolicyArns:
      #================================================================
      # NOTE: This role has admin access
      #       lock down to fit your needs!
      #================================================================
      - arn:aws:iam::aws:policy/AdministratorAccess

  #
  #--------------------------------------------------------------------------
  # CodeBuild definitions
  #--------------------------------------------------------------------------
  #
  #========================================================================
  # NOTE: GitHub requires a one time manual oauth authentication step
  # see https://itonaut.com/2018/06/18/use-github-source-in-aws-codebuild-project-using-aws-cloudformation/
  # for more information.
  #========================================================================
  CodeBuild:
    Type: AWS::CodeBuild::Project
    Properties:
      Name: !Sub "${AppName}"
      Description: !Sub "Run unit test for ${AppName}"
      BadgeEnabled: true
      Artifacts:
        Type: NO_ARTIFACTS
      ServiceRole: !Ref CodeBuildDeploymentRole
      Environment:
        ComputeType: !Ref CodeBuildComputeType
        EnvironmentVariables:
        - Name: CODACY_PROJECT_TOKEN
          Value: !Ref CodacyProjectToken
        - Name: APP_NAME
          Value: !Ref AppName
        Image: !Ref CodeBuildDockerImage
        Type: LINUX_CONTAINER
      Source:
        Auth:
          Type: OAUTH
        Type: GITHUB
        GitCloneDepth: 1
        Location: !Sub "https://github.com/${GitHubOwner}/${GitHubRepo}.git"
        BuildSpec: "buildspec.yml"
        ReportBuildStatus: true
      Triggers:
        Webhook: true

#
#--------------------------------------------------------------------------
# OUTPUTS
#--------------------------------------------------------------------------
#
# Outputs of the resources generated by the code pipeline
#
Outputs:
  CodeBuild:
    Description: CodeBuild resource for the master branch
    Value: !Ref CodeBuild
    Export:
      Name: !Sub "${AppName}-codebuild"