Understanding Helm
Kubernetes provides many ways to organize and orchestrate your containers at runtime, but it lacks a higher-level organization of grouping sets of images together. This is where Helm comes in. In this section, we'll go over the motivation for Helm, its architecture and components, and discuss what has changed in the transition from Helm Classic to Helm.
The motivation for Helm
Helm provides support for several important use cases:
- Managing complexity
- Easy upgrades
- Simple sharing
- Safe rollbacks
Charts can describe even the most complex apps, provide repeatable application installation, and serve as a single point of authority. In-place upgrades and custom hooks allow for easy updates. It's simple to share charts that can be versioned and hosted on public or private servers. When you need to rollback recent upgrades, Helm provides a single command to rollback a cohesive set of changes to your infrastructure.
The Helm architecture
Helm is designed to perform the following...
