Helm is a package manager for Kubernetes that bundles the manifests an application needs into reusable, versioned charts. Teams can then install, upgrade and roll back that application with one command.
Configuration management is the practice of defining and enforcing the settings and software on servers through automated, version-controlled tooling. It keeps environments consistent instead of hand-configured.
Kubernetes is an open-source platform for running containerised applications across a cluster of machines. It schedules containers, restarts failed ones, scales them with demand and routes traffic between them.
A platform engineer builds and runs the internal developer platform that product teams use to ship software. It bundles shared tooling, infrastructure and self-service workflows, and the role pays off once several teams keep reinventing the same infrastructure.
Docker builds and runs individual containers, while Kubernetes schedules and manages many containers across a cluster of machines. They are complementary: teams usually package applications with Docker tooling and run them in production on Kubernetes.
GitOps is an operating model in which the desired state of infrastructure and applications is stored in Git. Automated agents continuously reconcile live environments to match it.
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