Building a control system with cloud native technologies: leveraging kubernetes and tango-controls for CI/CD practices in SKA Observatory software

Building on the Square Kilometre Array's (SKA) Continuous Integration/Continuous Deployment (CI/CD) advancements, this paper focuses on the adoption and evolution of cloud-native technologies in the integration environment and subsystem-level orchestration. We present SKA's transformative journey employing Kubernetes, Integration environment and release process to streamline development workflows, automate integration testing, and ensure high-velocity deployments. The paper discusses strategies for dynamic environment provisioning, the seamless integration of independently developed subsystems, and the management of complex workflows with advanced CI/CD capabilities. We highlight the implementation of Kubernetes cluster integration environments with software's lifecycle management across multi-cloud environments, accentuating a robust, scalable, and transparent infrastructure. These cloud-native paradigms have not only optimised observatory operations but have also paved the way for enhanced collaboration, observability, and reliability in the era of large-scale astronomical projects.