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universal-helm

This repository contains the universal-helm Helm chart, which can generate Kubernetes manifests to deploy and expose a blockchain node using Ingress.

Motivation to Use a Common Helm Chart for All Blockchain Nodes

Pros:

  • More DRY Infra as Code: All blockchain nodes share a significant amount of configuration, which is generalized in this Helm chart.
  • Easier Infra as Code Development: Using the same Helm chart for all nodes allows changes to be made in one place to bring new features or fix bugs for all nodes.
  • Unified Code and Naming Conventions: All nodes follow the same code and naming conventions specified in the Helm chart, resulting in a more uniform infrastructure that is easier to read and develop.

Cons:

  • Increased Configuration Items: Due to generalization, nodes' configurations include more items, resulting in more lines of code.

Structure of the Repository

The Helm chart includes templates for the following objects:

  • StatefulSets: Deploys blockchain node containers. Init containers can be used to download snapshots, initialize data, etc. It will also automatically add a sidecar container with health probes to check the node's status.
  • Services: Generated for each container's port.
  • Ingresses: Exposes ports to the outside world; see example.

Example node configurations can be found in examples folder.

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