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Bonny: Kubernetes Operator Development Framework. Extend Kubernetes with Elixir

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bonny lib bonny pluggable add_missing_gvk.ex
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lib/bonny/pluggable/add_missing_gvk.ex 

defmodule Bonny.Pluggable.AddMissingGVK do

  @moduledoc """

  The Kubernetes API sometimes doesn't set the fields `apiVersion` and `kind` on

  items of a list operation. E.g. if you use `K8s.Client` to get a list of

  deployments, the deployments won't contains those two fields. This is being

  discussed on https://github.com/kubernetes/kubernetes/issues/3030.



  Bonny sometimes depends on `apiVersion` and `kind` to be defined on the

  resource being handled. This is the case for setting the status, e.g. when

  using `Bonny.Pluggable.SkipObservedGenerations` or `Bonny.Axn.update_status/2`.



  Add this step to your controller in order to set those values on all resources

  being handled.





  ## Examples



      step Bonny.Pluggable.AddMissingGVK,

        apiVersion: "apps/v1",

        kind: "Deployment"

  """



  @behaviour Pluggable



  @impl true

  def init(opts),

    do: %{

      "apiVersion" => Keyword.fetch!(opts, :apiVersion),

      "kind" => Keyword.fetch!(opts, :kind)

    }



  @impl true

  def call(axn, config) do

    resource = Map.merge(config, axn.resource)

    struct!(axn, resource: resource)

  end

end