go-github

With the migration of our GitHub organisation to Single Sign-On (SSO), the GitHub user that was being used in our tools (like Jenkins) was not beeing added as a new LDAP user. With this in mind, we had the need to have a way of authenticating using GitHub Apps.

The creation of this Go library is to be able to use in any code base that needs to authenticate on GitHub, like our fetch-bots-ips.

Usage

Get a new Access Token

To generate a new GitHub App access token that can be used to authenticate.

package main

import "github.com/kununu/go-github"

func main() {
	// Create a new GithubApp with JWT authentication
	ghApp, err := github.NewGitHubApp(&github.GitHubAppConfig{
		// GitHub APP ID to use to authenticate
		ApplicationID:  appId,
		// GitHub Installation ID for the APP
		InstallationID: instId,
		// GitHub APP generated private key
		PrivateKey:     keyBytes,
	})

	token, err := ghApp.GetAccessToken()
	if err != nil {
		panic(err)
	}
}

Provided binary

We also provide a binary that outputs a GitHub token and can be in any a linux command line by setting the GIT_ASKPASS env variable to the binary.

The binary can be configured to be used byt setting the environment variables GITHUB_APP_ID GITHUB_INST_ID and GITHUB_KEY_PATH or by passing the values using flags. Use the -h flag for more information on the available flags.

GIT_ASKPASS=<path_to_binary>