Run Bazel Build on Semaphore

Semaphore is a CI/CD solution designed to automate the building, testing, and deploying of projects, offering an intuitive drag-and-drop interface that simplifies configuring pipelines for developers who may not be comfortable writing custom configurations. It supports various tech stacks and project sizes, from small startups to large-scale operations, with features like caching and monorepo support. Bazel, an open-source build tool, complements Semaphore by efficiently compiling large monorepo projects through reproducibility, high-performance builds, and multi-language dependency support. The integration process involves setting up Semaphore with a GitHub repository, creating a project, and defining workflows with pipelines, blocks, and promotions guided by a YAML configuration file. The article provides a detailed tutorial on setting up a Bazel build workflow on Semaphore, emphasizing the setup of environment variables, creating and configuring blocks for installing dependencies and building the project, and ensuring a functional NodeJS environment through prologue commands. The tutorial also highlights the importance of translating visual configurations into a semaphore.yml file and running the workflow to facilitate continuous integration on the cloud.