Heroes journey: Working with GitLab's Kubernetes agent

What this post added

This post introduces the GitLab Agent for Kubernetes as a successor to the previous certificate-based integration. It details the agent's architecture, its GitOps 'pull' mode capabilities, and the installation process using a configuration file and a Docker command. It also highlights the integration with the 'GitLab Cluster Management' template for deploying tools like Prometheus and Sentry, and the CI/CD tunnel feature for direct `kubectl` commands without explicit secret configuration. The post notes that the agent's ability to display pod states on the environment page is a future enhancement.