Question 1

How to deploy a Bonny operator to Kubernetes?

Accepted Answer

Use `mix bonny.gen.manifest` to generate a YAML manifest, then apply it with `kubectl apply -f manifest.yaml`. Ensure your service account has the RBAC permissions configured in `bonny.exs`, as per the documentation.

Question 2

Bonny vs Kubebuilder: which should I choose for custom controllers?

Accepted Answer

Bonny is best if your team already uses Elixir and values its concurrency model, while Kubebuilder (Go-based) offers a larger community, more integrations, and is the CNCF standard. Consider your language stack and support needs.

Question 3

Can I test a Bonny operator without a real Kubernetes cluster?

Accepted Answer

Yes, you can run it locally by configuring kubeconfig, but the README warns this isn't for production. It's useful for development, though RBAC permissions must still be set up manually.

Question 4

What telemetry events does Bonny emit for monitoring?

Accepted Answer

Bonny emits events like `[:reconciler, :reconcile, :start]` and `[:watcher, :watch, :stop]` via the Telemetry library. You can integrate these with tools like Prometheus using telemetry handlers for real-time insights.

Question 5

How to handle CRD version migrations with Bonny?

Accepted Answer

Refer to the CRD Versions guide included in the repository, which covers strategies for managing custom resource definition updates, though implementation details may require custom Elixir code.

Question 6

Is Bonny good for building custom Kubernetes schedulers?

Accepted Answer

Yes, Bonny supports custom schedulers through its scheduler module, allowing advanced workload placement. However, it requires Elixir expertise and may have fewer examples compared to scheduler-specific tools.

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