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Manage GitHub resources like repositories, teams, members, integrations and workflows with the AWS CDK as Custom Resources in CloudFormation with [cdk-github](https://github.com/pepperize/cdk-github).

Project description

GitHub npm (scoped) PyPI Nuget Sonatype Nexus (Releases) GitHub Workflow Status (branch) GitHub release (latest SemVer) Gitpod ready-to-code

CDK Github

Manage GitHub resources like repositories, teams, members, integrations and workflows with the AWS CDK as Custom Resources in CloudFormation with cdk-github.

You configure the endpoint, method and parameters documented by @octokit/rest and AWS CloudFormation runs them anytime you create, update (if you changed the custom resource), or delete stacks. When CloudFormation sends a lifecycle event notification, then your custom resource sends the request to the GitHub REST API.

Install

TypeScript
npm install @pepperize/cdk-github

or

yarn add @pepperize/cdk-github
Python
pip install pepperize.cdk-github
C#
dotnet add package Pepperize.CDK.Github
Java
<dependency>
  <groupId>com.pepperize</groupId>
  <artifactId>cdk-github</artifactId>
  <version>${cdkGithub.version}</version>
</dependency>

Contributing

Contributions of all kinds are welcome :rocket: Check out our contributor's guide.

For a quick start, fork and check out a development environment:

git clone git@github.com:pepperize/cdk-github
cd cdk-github
# install dependencies
yarn
# build with projen
yarn build

Getting Started

  1. Creating a GitHub App

  2. Installing GitHub Apps

  3. Create an AWS Secrets Manager secret

    {
      "appId": "123456",
      "privateKey": "-----BEGIN RSA PRIVATE KEY-----\nExample==\n-----END RSA PRIVATE KEY-----",
      "installationId": "12345678"
    }
    
  4. Add @pepperize/cdk-github to your project dependencies

    yarn add @pepperize/cdk-github
    
  5. Add your main.ts

    const app = new App();
    const stack = new Stack(app, "GithubCustomResources");
    

    Just for simplicity, it's up to you how to organize your app :wink:

  6. Import your secret

    const secret = secrets_manager.Secret.fromSecretNameV2(stack, "Auth", "cdk-github/test");
    
  7. Configure GitHub App authenticate as an installation

    const authOptions = AuthOptions.appAuth(secret);
    
  8. Add your first GitHub Custom Resource with the AWS CDK

    new GithubCustomResource(stack, "GithubRepo", {
      onCreate: {
        // 👇The endpoint of the GitHub API.
        endpoint: "repos",
        // 👇The method of the GitHub API.
        method: "createInOrg",
        // https://octokit.github.io/rest.js/v19/#repos-create-in-org
        parameters: {
          // 👇The request parameters to send.
          org: "pepperize",
          name: "cdk-github",
        },
        // 👇The object keys from the GitHub API response to return to CFN.
        outputPaths: ["id", "full_name"],
        // 👇This becomes the CFN Physical ID visible in the Console.
        physicalResourceId: custom_resources.PhysicalResourceId.fromResponse("full_name"),
        // 👇Don't throw an error if message matching this regex.
        ignoreErrorCodesMatching: "name already exists on this account",
      },
      // 👇The implemented authentication strategy.
      authOptions: AuthOptions.appAuth(secret),
    });
    
  9. Deploy your first GitHub Custom Resource

    npx cdk deploy
    

Authentication

GitHub App or installation authentication

Configure the AWS SecretsManager Secret with the AuthOptions that will be passed to octokit.auth. i.e. as an installation:

{
  "appId": "123456",
  "privateKey": "-----BEGIN RSA PRIVATE KEY-----\nExample==\n-----END RSA PRIVATE KEY-----",
  "installationId": "12345678"
}

Lookup the secret in your AWS CDK app:

// 👇Lookup your secret containing the AuthOptions
const secret = secrets_manager.Secret.fromSecretNameV2(stack, "Auth", "cdk-github/test");
// 👇This will send the secret arn to the custom resource handler
const authOptions = AuthOptions.appAuth(secret);

The custom resource handler will configure octokit.js with the createAppAuth:

const getSecretValueResponse = await SSM.getSecretValue({ SecretId: secret }).promise();
const octokitOptions: OctokitOptions = {
  authStrategy: createAppAuth,
  auth: (auth = JSON.parse(getSecretValueResponse.SecretString)),
};

Supported through @octokit/auth-app

Personal Access Token authentication

Just add your PAT to an SSM StringParameter

// 👇Lookup your parameter containing the TOKEN
const parameter = ssm.StringParameter.fromStringParameterName(stack, "Auth", "cdk-github/test");
// 👇This will send the parameter arn to the custom resource handler
const authOptions = AuthOptions.tokenAuth(parameter);

Supported through @octokit/auth-token

Unauthenticated

// 👇This will configure octokit without authentication
const authOptions = AuthOptions.unauthenticated();

Example

@octokit/plugin-rest-endpoint-methods

const secret = secrets_manager.Secret.fromSecretNameV2(stack, "Auth", "cdk-github/test");

new GithubCustomResource(stack, "GithubRepo", {
  onCreate: {
    // https://octokit.github.io/rest.js/v19/#repos-create-in-org
    endpoint: "repos",
    method: "createInOrg",
    parameters: {
      org: "pepperize",
      name: "cdk-github",
    },
    outputPaths: ["id", "full_name"],
    physicalResourceId: custom_resources.PhysicalResourceId.fromResponse("full_name"),
    ignoreErrorCodesMatching: "name already exists on this account",
  },
  onUpdate: {
    // https://octokit.github.io/rest.js/v19#repos-get
    endpoint: "repos",
    method: "get",
    parameters: {
      owner: "pepperize",
      repo: "cdk-github",
    },
    outputPaths: ["id", "full_name"],
    physicalResourceId: custom_resources.PhysicalResourceId.fromResponse("full_name"),
  },
  onDelete: {
    // https://octokit.github.io/rest.js/v19#repos-delete
    endpoint: "repos",
    method: "delete",
    parameters: {
      owner: "pepperize",
      repo: "cdk-github",
    },
    outputPaths: [],
  },
  authOptions: AuthOptions.appAuth(secret),
});

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