Discover the power of Continuous Integration and Continuous Deployment (CI/CD) for your Flutter projects! With this write-up, we unveil the secrets of setting up an efficient CI/CD pipeline using two industry-leading tools.
By Vinamra Singh
09 Jun, 2023
In today's fast-paced software development landscape, ensuring the efficient and reliable delivery of applications is paramount. Implementing a CI/CD (Continuous Integration/Continuous Deployment) pipeline for Flutter projects can significantly streamline the development process, enabling faster feedback, automated testing, and smooth deployments.
By combining the power of Jenkins, an automation server, with BitBucket, a version control repository, developers can establish a robust CI/CD pipeline for their Flutter projects. But how can you set up the CI/CD pipeline for your Flutter projects using Jenkins and BitBucket? This blog will explore how to implement CI-CD using Jenkins with BitBucket repos.
Let's start with a brief introduction to CI/CD pipeline & Jenkins.
A CI/CD pipeline is a set of automated processes and tools that enable developers to integrate code changes, test them, and deploy the application consistently and efficiently. In the context of Flutter projects, a CI/CD pipeline helps streamline the development workflow, automate build and test processes, and ensure the smooth deployment of Flutter applications
Workflow of CI/CD
CI regularly merges code changes from multiple developers into a shared repository. It involves committing code changes to a version control system like BitBucket for Flutter projects whenever a developer completes a task or adds a feature.
The CI pipeline for Flutter projects typically involves the following steps:
CD focuses on automating the application's deployment to production or staging environments after successful integration and testing. CD involves packaging the application for Flutter projects, generating release artifacts (e.g., APK or IPA files), and deploying them to the target platforms or servers.
The CD pipeline for Flutter projects typically includes the following steps:
NOTE: Besides Jenkins, several other ways exist to achieve a CI/CD workflow. Some popular options are GitHub Action, CircleCI, GitLab CI/CD, Travis CI, AWS CodePipeline, Bamboo, etc.
Jenkins is an open-source automation server that facilitates continuous integration and delivery of software projects. It provides a robust platform for automating various stages of the software development lifecycle, including building, testing, and deploying applications. Jenkins is highly flexible and extensible, supporting various plugins and integrations with other tools and technologies.
Continuous Integration: Jenkins is primarily known for its CI capabilities. It allows developers to regularly integrate code changes from multiple contributors into a shared repository. Jenkins can automatically trigger builds whenever changes are pushed to the repository, enabling early detection of integration issues.
Build Automation: Jenkins supports the automation of build processes. It can pull the latest code changes from version control, compile the code, and create build artifacts, such as executable files or deployable packages. Jenkins provides extensive support for various build tools and technologies, including support for Flutter projects.
Testing & Quality Assurance: Jenkins enables the execution of automated tests as part of the CI pipeline. It can run unit tests, integration tests, and other types of tests to ensure the quality and functionality of the code. Jenkins can generate reports and metrics based on the test results, helping developers identify and address issues quickly.
Plugin Ecosystem: Jenkins has many plugins that extend its functionality. These plugins cover many areas, such as version control systems, build tools, testing frameworks, deployment technologies, and notification systems. Developers can leverage these plugins to customize and enhance their Jenkins pipelines according to project requirements.
Scalability & Distribution: Jenkins is designed to handle large-scale projects and distribute build and test workloads across multiple machines or agents. This allows for parallel execution of tasks, reducing build times and increasing overall efficiency.
Extensibility: Jenkins provides a flexible architecture that allows developers to create custom plugins and integrations. This extensibility enables Jenkins to integrate with various tools, technologies, and services in the software development ecosystem, making it adaptable to diverse project environments.
Community & Support: Jenkins has a vibrant community of users and contributors who actively develop plugins, provide support, and share best practices. This active community ensures that Jenkins remains up to date with the latest industry trends and fosters a collaborative environment for knowledge exchange.
Open-Source & User friendly: Jenkins is free to use and has a large community of developers contributing to its ecosystem. It offers numerous plugins that enhance its functionality. Jenkins can be scaled to meet the needs of even the largest organizations. It has a user-friendly web interface that makes it easy to get started.
Overall, Jenkins is a powerful automation server that facilitates continuous integration and delivery. It enables developers to automate build, test, and deployment processes, resulting in faster feedback, improved software quality, and streamlined development workflows.
Now, let’s check out the step-by-step Implementation of CI/CD using Jenkins.
Note: *You can also follow this- macOS Installers for Jenkins LTS to learn more about the installation process. It’s configured with http port 8080, so now you can access the Jenkins panel from your local host.
Read More: CI-CD using GitLab
Before writing the script, let's discuss some essential points related to the script.
Script: (Test Pass)
flutter pub get
# First Creating & Uploading iOS Build
flutter build ipa --no-tree-shake-icons IPA_PATH="$JENKINS_HOME/workspace/demo/build/ios/ipa/demo.ipa"
xcrun altool --upload-app -f "$IPA_PATH" -t ios -u "$APPLE_ID" -p "$APPLE_ID_PASSWORD" --verbose
# Here Creating Android Build
flutter build appbundle --release --no-tree-shake-icons
Note 1: Here we are using the google-play-android-publisher plugin to upload a build. For more context, please follow the given link: https://plugins.jenkins.io/google-play-android-publisher/ Note 2: no-tree-shake-icons (Adding this line just to ignore flutter default AppIcon). If you have a real app, then no need to add this line.
Note 3: We can also use the ngrok app for this (BitBucket repos.) process. It is a simplified API-first ingress-as-a-service that adds connectivity, security, and observability to your apps in one line.
Implementing Jenkins can come with several challenges that developers may encounter. Here are some common difficulties faced during the implementation process:
Challenge 1: Flutter command may not be recognized. Reason: The Jenkins server could not find Flutter, so ensure you have installed Flutter & required software like Android Studio & Xcode on your machine. Also, ensure you have added the Flutter SDK path to the Jenkins server.
Challenge 2: Generate signed AAB file failed Reason: Don't forget to configure the release build in my app build.gradle file. So, ensure you have added it already.
Challenge 3: Generate IPA file failed.
Reason: If you didn’t configure the provisioning profile & certificate. Also, ensure all things are configured in your Xcode.
Challenge 4: AAB file upload sometimes failed.
Reason: You should have owner access to your Google Service Account. The rollout percentage should be zero when uploading a build as a draft.
By following these steps, you can establish a robust CI/CD pipeline for your Flutter projects using Jenkins & BitBucket. This pipeline will enable continuous integration, automated testing, artifact generation, and deployment automation, ensuring your Flutter applications are built, tested, and deployed efficiently.
Hence, Implementing a CI/CD pipeline enhances collaboration among developers and promotes faster, more reliable software releases, ultimately improving the success of your Flutter projects. Thanks!!!
Ans: Bitbucket is a web-based version control repository hosting service. It provides features like Git and Mercurial repositories, pull requests, and issue tracking. Using Bitbucket allows us to manage the Flutter project's source code and collaborate with a team.
Ans: The frequency of triggering builds depends on your development workflow and requirements. Common approaches include triggering builds on every commit, on a schedule (e.g., nightly builds), or when specific events occur (e.g., pull requests or tag creation).
Ans: While Jenkins can build and package your Flutter app, deploying app stores requires additional steps specific to each store's guidelines and tools. Jenkins can be configured to trigger these deployment steps, but you must set up the appropriate tools and credentials for each app store.
Ans: Yes, there are several alternatives to Jenkins for CI/CD, such as GitLab CI/CD, CircleCI, Travis CI, and Azure DevOps.
Ans: Yes, Jenkins supports integration with various version control systems, including GitHub, GitLab, and Bitbucket.
Mastering Swift 5 for iOS App Development- A Beginner's Guide
By Ayushi Shrivastava
5 min read
Top DevOps Best Practices to Streamline Your Development Pipeline in 2024
By Dhruv Joshi
5 min read
Latest Web Development Technologies- Explore Top 8
By Anupam Singh
8 min read
Latest Cybersecurity Trends- From Innovation to Protection
By Anupam Singh
8 min read
Dive into our comprehensive beginner's guide to mastering Swift5 for iOS app development. Learn everything you need to know about SwiftUI, from the basics to advanced techniques, and kickstart your journey towards building stunning iOS applications.
Unlock unparalleled agility and efficiency with our comprehensive guide to DevOps best practices in 2024. Streamline your development pipeline and stay ahead in today's DevOps trends in 2024 with Quokka Labs.
Web development is an ever-evolving industry demanding constant adaptation from developers. Staying abreast of the latest web technologies is essential, as they directly influence user experience, site speed, and overall performance. As we venture into 2024, it's imperative to familiarize oneself with the prevailing technologies shaping the industry.