Thomas PEDOT

CTO Jokosun

Renovate your code dependencies with GitLab CI and renovate

Title Image

In today’s fast-paced and constantly evolving software development landscape, managing code dependencies is a critical aspect of maintaining the stability, security, and efficiency of your projects. GitLab CI and Renovate are two powerful tools that can help streamline the process of handling code dependencies, ensuring that your projects stay up-to-date and secure. In this article, we will delve into the inner workings of GitLab CI and Renovate, exploring how they function and why they are essential for effective code dependency management. We’ll also provide practical guidance on setting up GitLab CI and Renovate, along with the numerous benefits they offer, such as streamlined dependency management, increased security, and significant time and cost savings.

We will discuss best practices for utilizing GitLab CI and Renovate, including the importance of regular updates, automated testing, and implementing a rollback plan. By the end of this article, you’ll have a comprehensive understanding of how to leverage GitLab CI and Renovate to enhance your code dependency management practices and elevate the overall quality of your software projects.

What is GitLab CI?

GitLab CI is a continuous integration tool that allows developers to automate the process of testing and deploying their code changes.

It seamlessly integrates with version control systems like GitLab, enabling developers to easily manage their codebase and automate the build process. With GitLab CI, users have the flexibility to set up custom CI/CD pipelines, providing them with the ability to tailor their deployment processes to the specific needs of their projects.

This helps in streamlining the software development lifecycle and ensuring faster delivery of high-quality code. Its support for automation simplifies the testing and deployment workflows, ultimately enhancing productivity and efficiency within development teams.

What is Renovate?

Renovate is an open-source tool designed to automate the process of updating dependencies in code repositories, including JavaScript, Docker, and other language-specific packages.

This robust tool is capable of scanning through various types of dependencies, such as npm, Maven, pip, gems, and more, ensuring that your project’s dependencies are always up to date without manual intervention.

By automatically detecting outdated dependencies and creating pull requests to update them, Renovate streamlines the workflow for developers, saving time and reducing the risk of using outdated or vulnerable packages in their projects.

How does GitLab CI work?

GitLab CI works by automatically building and testing code changes as they are pushed to the repository, ensuring that new changes do not introduce errors or break existing functionality.

When a developer pushes their code to the shared repository, GitLab CI detects the changes and triggers the CI/CD pipeline. The pipeline then runs the configured build jobs, which compile the code, run automated tests, and perform static code analysis. If all the steps pass successfully, the code is considered for deployment, where it can be automatically deployed to staging or production environments.

This seamless integration of continuous integration, automated testing, and deployment pipelines helps streamline the development process and ensures that only the validated code reaches production.

How does Renovate work?

Renovate works by scanning code repositories for outdated dependencies and automatically creating pull requests to update them to the latest compatible versions, streamlining the process of managing dependency updates.

It operates as a time-efficient and hassle-free tool, sparing developers the manual effort of monitoring and updating dependencies one by one. When Renovate recognizes an outdated dependency, it uses automated logic and versioning analysis to propose and implement the necessary updates via pull requests, ensuring smooth integration into the codebase.

This seamless automation enhances project stability, security, and overall efficiency, as it minimizes the risk of overlooking crucial updates and introduces the latest features and bug fixes without delay.

Why use GitLab CI for code dependencies?

Using GitLab CI for code dependencies offers the advantage of automating the testing and integration of dependencies, ensuring that any updates or changes to dependencies are seamlessly integrated into the codebase.

This automation of dependency updates not only saves time and effort but also reduces the likelihood of manual errors or oversights. With the streamlined workflow, developers can focus on writing and enhancing code, knowing that the GitLab CI is managing the dependency updates efficiently.

The ability to integrate dependency updates into the development process seamlessly allows for a more synchronized and controlled environment, fostering collaboration among team members and ensuring that the application remains stable and secure.

Why use Renovate for code dependencies?

Using Renovate for managing code dependencies offers the benefit of significant time efficiency by automating the identification and updating of outdated dependencies, freeing up developers to focus on other critical tasks.

Plus saving time, Renovate also enhances the reliability of dependency updates by consistently monitoring and applying the latest patches and versions, thereby reducing the risk of using outdated or vulnerable libraries.

The platform minimizes the need for manual intervention in dependency management, streamlining the entire process and ensuring that updates are seamlessly integrated into the codebase without disrupting other development activities.

Setting Up GitLab CI and Renovate

Setting up GitLab CI and Renovate involves configuring automated processes, integrating with version control systems, and securing the necessary access tokens and permissions for seamless operation.

Use a gitlab template

The most stable way is to use a GitlabCI template.

What we will do to

establish a new project for hosting the runner.

Set up credentials through CI variables configuration.

Develop a main pipeline integrating the template from this project.

Arrange a schedule for the regular execution of the pipeline.

Create a new project to host the runner:

We recommend using a new and dedicated private project for the Renovate runner. However, a public project with private CI logs is also considered safe.

Public projects currently enjoy unrestricted CI minutes, but soon they will have the same restrictions as private projects.

Configure CI/CD variables:

Add a GitLab Personal Access Token with scopes read_user, api, and write_repository as RENOVATE_TOKEN to CI/CD variables.

You need to add a GitLab Personal Access Token with scopes: read_user, api, and write_repository as RENOVATE_TOKEN to CI/CD variables. Alternatively, you can utilize a GitLab Group Access Token. Check Renovate platform docs and #53 for additional information.

Decide how the bot should choose projects to run against by setting RENOVATE_EXTRA_FLAGS. Options include autodiscovery, onboarding, and manual specification.

Create a GitLab CI file:

Add a .gitlab-ci.yml file to the repository, either by including the default template or using the full renovate image.

include: - project: 'renovate-bot/renovate-runner' file: '/templates/renovate.gitlab-ci.yml'

It is also advisable to set up a GitHub.com Personal Access Token with minimum scopes as GITHUB_COM_TOKEN. This allows your bot to make authenticated requests to github.com for Changelog retrieval and any dependency utilizing GitHub tags. Failure to provide such a token may lead to rate limiting by github.com's API, rendering lookups unreliable.

Finally, determine the criteria for your bot to select projects to operate on. By default, Renovate won’t identify any repository, and you must choose one of the following options for RENOVATE_EXTRA_FLAGS.

If you want your bot to operate on any project accessible to the RENOVATE_TOKEN PAT, but already having a renovate.json or a similar config file, add this variable: RENOVATE_EXTRA_FLAGS: --autodiscover=true. This implies that no new projects will be onboarded.

However, it is recommended to use an autodiscoverFilter value like the following to prevent the bot from running on projects it gets invited to without your knowledge: RENOVATE_EXTRA_FLAGS: --autodiscover=true --autodiscover-filter=*/*. Refer to the renovate docs for more information about GitLab security.

include: - project: 'renovate-bot/renovate-runner' file: '/templates/renovate.gitlab-ci.yml' variables: RENOVATE_EXTRA_FLAGS: '--autodiscover=true --onboarding=true --autodiscover-filter=group1/*' GITHUB_COM_TOKEN: $GITHUB_TOKENrenovate: image: ghcr.io/renovatebot/renovate:full script: - echo "Running Renovate..." - renovate --token $RENOVATE_TOKEN

In this example:

  • We include the Renovate Runner template from the specified project and file path.
  • Set variables, including RENOVATE_EXTRA_FLAGS for customization and GITHUB_COM_TOKEN using the environment variable $GITHUB_TOKEN.
  • The renovate job uses the full Renovate image and executes a script with Renovate commands. Adjust the script as needed for your specific requirements.

This example demonstrates a more customized setup, including autodiscovery, onboarding, and the use of a GitHub token. Adjust the variables and script based on your project’s needs and Renovate configuration.

Configure the Schedule:

Configure a schedule under CI/CD > Schedules to ensure regular execution of Renovate.

Add Gitlab Scheduler

It is recommended to set the schedule to run hourly. For example, the following schedule runs Renovate on the third minute of every hour: 3 * * * *.

Exemple of gitlab Scheduler fro Renovate every Day at 6:00am

As the default pipeline operates solely on schedules, initiate a manual run by using the play button associated with the schedule. This step ensures that Renovate runs as needed outside the scheduled intervals.

Other config options:

Feel free to refer to Renovate platform docs and #53 for more information.

For security reasons, onboarding and autodiscovery are disabled by default, but you can enable them based on your project’s needs. For further details on GitLab security, consult the Renovate docs. Additionally, explore the Renovate GitLab Configuration for more self-hosted GitLab samples.

Benefits of Using GitLab CI and Renovate for Code Dependencies

Utilizing GitLab CI and Renovate for managing code dependencies offers benefits such as streamlined dependency management, increased security and stability, and significant time and cost savings.

With GitLab CI and Renovate, developers experience an efficient and organized workflow, thanks to the automated build, test, and deployment processes. This not only accelerates the development cycle but also enhances the overall security and stability of the codebase. By automatically detecting and resolving outdated dependencies, Renovate ensures that the project remains up-to-date while minimizing the risk of vulnerabilities. These tools significantly reduce the time and resources spent on manual management tasks, leading to substantial cost savings for businesses.

Streamlined code dependency management

Streamlined code dependency management with GitLab CI and Renovate involves automating the identification, updating, and integration of dependencies, ensuring a seamless and efficient process.

This approach facilitates the continuous improvement of software by automatically identifying outdated dependencies and updating them. GitLab CI and Renovate work in tandem to automatically create merge requests, run tests, and merge successful updates, eliminating manual interventions and improving overall development efficiency.

The automated dependency management process ensures that developers can focus on building and enhancing features without worrying about outdated dependencies, leading to a more robust and stable codebase.

Increased security and stability

Utilizing GitLab CI and Renovate enhances security and stability by performing regular dependency scans, securing the repository, and ensuring that only approved and updated dependencies are integrated into the codebase.

By automating the process of dependency scanning, GitLab CI and Renovate significantly reduce the risk of vulnerabilities in the codebase. This continuous monitoring and updating of dependencies not only fortify the security of the project but also contribute to the overall stability of the application. With these tools in place, developers can remain confident that their codebase is shielded from potential security threats and that any changes to dependencies will align with the approved standards, further solidifying the reliability of the system.

Time and cost savings

Implementing GitLab CI and Renovate results in significant time efficiency and cost savings through automation, seamless integration, and the utilization of pre-commit hooks to prevent problematic dependency updates.

By leveraging these tools, development teams can automate the build, test, and deployment processes, reducing the need for extensive manual intervention and enabling faster delivery of high-quality code.

The seamless integration of Renovate facilitates the automatic upgrading of dependencies, ensuring that the project codebase is always up-to-date with the latest improvements, patches, and security fixes.

With pre-commit hooks, potential issues related to dependency updates are detected and resolved before they can impact the project, thereby preventing costly delays and debugging efforts.

Best Practices for Using GitLab CI and Renovate

desktop-line-code
Desktop Line Code

Adhering to best practices when using GitLab CI and Renovate involves regularly reviewing and updating dependencies, utilizing automated testing for compatibility, and implementing a robust rollback plan for unexpected issues.

Regular review and update of dependencies is crucial to ensure that the software is built on the most stable and secure foundation. By incorporating automated testing for compatibility, developers can catch potential issues early, avoiding costly errors in production.

Having a solid rollback plan in place is essential to quickly address any unforeseen problems that might arise, providing a safety net for seamless recovery.

Regularly review and update dependencies

Regularly reviewing and updating dependencies with GitLab CI and Renovate ensures that the codebase remains up-to-date, secure, and free from vulnerabilities that may arise due to outdated dependencies.

By regularly inspecting and refreshing dependencies, developers can proactively identify and mitigate potential security risks and compatibility issues. GitLab CI and Renovate play a pivotal role in automating this crucial process, ensuring that projects stay resilient against evolving threats and maintain smooth functionality.

With GitLab CI’s robust pipeline capabilities and Renovate’s automated dependency updates, developers can conveniently streamline the review and update mechanisms for third-party libraries and packages. This integration not only enhances efficiency but also fosters a collaborative environment for continuous improvement within the development workflow.

Utilize automated testing

The utilization of automated testing with GitLab CI and Renovate ensures the compatibility and stability of updated dependencies, reducing the risk of introducing issues or breaking existing functionality.

Automated testing plays a crucial role in the development process, especially when it comes to managing dependencies. By employing GitLab CI and Renovate, teams can streamline the process of checking the compatibility and stability of updated dependencies. Through automation, potential issues and conflicts between dependencies are identified early on, allowing for prompt resolution and ensuring a smooth integration of updates.

This approach facilitates seamless collaboration across teams, as it provides a consistently stable environment for development and minimizes the chances of unexpected complications during the integration of dependency updates.

Implement a rollback plan

Implementing a robust rollback plan with GitLab CI and Renovate is essential to address unforeseen issues or incompatibilities arising from dependency updates, ensuring a reliable mechanism to revert to the previous stable state.

Such a plan not only offers a safety net in case of unexpected challenges but also contributes to the overall management of code dependencies, safeguarding the stability and functionality of the project. Integrating pre-commit hooks further enhances the system by enabling early detection of problematic updates, thereby preventing potential disruptions down the line. This approach helps to maintain the integrity of the codebase and ensures a smoother development process, fostering a culture of efficiency and reliability within the team.