Cloud Source Repositories Tutorial

Introduction

Cloud Source Repositories (CSR) is a service provided by Google Cloud that allows you to host Git repositories. It integrates seamlessly with other Google Cloud services, making it an excellent choice for teams already using Google Cloud Platform (GCP). This tutorial will guide you through the process of setting up and using Cloud Source Repositories, from creating your first repository to managing your code.

Prerequisites

Before you start using Cloud Source Repositories, ensure you have the following:

• A Google Cloud Platform (GCP) account
• gcloud command-line tool installed and configured
• Basic knowledge of Git

Setting Up a Cloud Source Repository

Follow these steps to create and set up a Cloud Source Repository:

Step 1: Enable the Cloud Source Repositories API

To use Cloud Source Repositories, you need to enable its API. Run the following command:

gcloud services enable sourcerepo.googleapis.com

Step 2: Create a New Repository

To create a new repository, use the following command:

gcloud source repos create [REPOSITORY_NAME]

Replace [REPOSITORY_NAME] with your desired repository name. For example:

gcloud source repos create my-sample-repo

Step 3: Clone the Repository

You can clone the repository to your local machine using the following command:

gcloud source repos clone [REPOSITORY_NAME] --project=[PROJECT_ID]

Replace [REPOSITORY_NAME] with the name of your repository and [PROJECT_ID] with your GCP project ID. For example:

gcloud source repos clone my-sample-repo --project=my-gcp-project

Using Your Cloud Source Repository

Adding Files and Committing Changes

After cloning the repository, navigate to the repository's directory:

cd my-sample-repo

Add your files and commit changes as you would with any Git repository:

git add .
git commit -m "Initial commit"
                

Pushing Changes

Push your changes to the Cloud Source Repository:

git push origin master

Integrating with Other Google Cloud Services

Cloud Source Repositories can be integrated with other Google Cloud services, such as Cloud Build for continuous integration and continuous deployment (CI/CD). For instance, you can set up a trigger to automatically build and deploy your code whenever changes are pushed to your repository.

Step 1: Create a Cloud Build Trigger

Navigate to the Cloud Build section in the Google Cloud Console and create a new trigger. Specify the Cloud Source Repository and the branch to be monitored.

Step 2: Configure the Build Steps

Define the build steps in a cloudbuild.yaml file in your repository. Here is an example:

steps:
- name: 'gcr.io/cloud-builders/gcloud'
  args: ['app', 'deploy']
                

Managing Access and Permissions

To manage access to your Cloud Source Repository, use IAM roles and permissions. You can grant specific roles to users or service accounts to control their level of access.

Granting Access

To grant access to a user, use the following command:

gcloud projects add-iam-policy-binding [PROJECT_ID] --member='user:[USER_EMAIL]' --role='roles/source.reader'

Replace [PROJECT_ID] with your project ID and [USER_EMAIL] with the user's email address. For example:

gcloud projects add-iam-policy-binding my-gcp-project --member='user:example@example.com' --role='roles/source.reader'

Conclusion

Cloud Source Repositories is a powerful service for hosting Git repositories on Google Cloud. It offers seamless integration with other Google Cloud services, making it an excellent choice for teams using GCP. This tutorial has covered the basics of setting up and using Cloud Source Repositories. For more advanced features and configurations, refer to the official documentation.