kubernetes/helm
Helm
Helm is a package manager and application bundler for Kubernetes. It provides a system for defining, installing, and upgrading complex applications using shareable, versioned packages called charts.
The project functions as a template engine and release manager, rendering dynamic resource manifests from static charts using configurable values. It tracks the history of deployments to enable reliable updates and rollbacks to previous stable versions within a cluster.
The system handles the end-to-end lifecycle of application deployment, including the bundling of manifest files into reproducible archives and the retrieval of these bundles from local or remote repositories. It separates application logic from environment settings by merging default values with user-provided overrides.
Features
- Kubernetes Application Deployments - Installs and manages complex application resource packages on Kubernetes clusters.
- Chart Packages - Provides a system for bundling application manifests and metadata into versioned archives called charts.
- Application Charting - Bundles complex Kubernetes resource definitions into reusable charts for simplified distribution.
- Application Bundlers - Packages Kubernetes manifest files and metadata into reproducible templates for cross-cluster distribution.
- Kubernetes Deployment Management - Maintains the desired state of Kubernetes application deployments using templates to ensure environmental consistency.
- Kubernetes Tools - Acts as a package manager for defining, installing, and upgrading complex Kubernetes applications using charts.
- Manifest Template Engines - Generates final Kubernetes resource manifests by injecting user-defined values into Go templates.
- Release Lifecycle Management - Manages the end-to-end installation, upgrade, and rollback process of application releases.
- Release Tracking - Tracks the history and state of installed releases within the cluster to enable precise upgrades and rollbacks.
- Infrastructure Component Packaging - Bundles complex Kubernetes resource definitions into reusable packages to simplify cluster installations.
- Application Packaging Formats - Implements a specific packaging format for bundling manifests and metadata into shareable, reproducible units.
- Chart Repositories - Enables sharing pre-configured application bundles via remote repositories for standardized deployment.
- Semantic Versioning Systems - Uses semantic versioning to organize application packages in repositories for controlled update cycles.
- Kubernetes API Clients - Implements a client-side layer to process templates and orchestrate requests to the Kubernetes API server.
- Package Managers - Automates the retrieval of application bundles from remote storage or local disks for deployment.
- Default Configuration Values - Manages a hierarchy of default chart values and user-provided overrides to separate logic from environment settings.
- Release & Versioning - Tracks deployment history to facilitate reliable updates and quick rollbacks to previous stable versions.
- Infrastructure and Automation - Package manager for Kubernetes.
