React Native CI/CD for Android – Fastlane + Semaphore

The blog post explores the integration of Continuous Integration and Continuous Deployment (CI/CD) pipelines for React Native Android apps using Fastlane and Semaphore, aiming to streamline the app distribution process. Fastlane, an open-source tool backed by Google, automates repetitive build tasks such as incrementing build numbers and deploying to distribution platforms like the Play Store. The post details the setup process for incorporating Fastlane into React Native projects and demonstrates creating CI workflows using Semaphore, a service known for its optimized build times and extensive configuration options. Semaphore facilitates the establishment of CI workflows by offering templates and allows the use of different agents for tasks like linting, unit testing, and end-to-end testing. The post also discusses setting up a CD workflow with Semaphore, which involves promoting builds through different environments, such as alpha, develop, and master, using Fastlane to automate distribution to Firebase and the Play Store. This structured approach to CI/CD is highlighted as a significant resource-saving strategy that enhances productivity and accelerates the development cycle.