Monthly Downloads: 378
Programming language: Elixir
License: MIT License
Latest version: v0.11.0

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Kazan is a Kubernetes API client for Elixir. It uses the OpenAPI specifications provided by kube to generate most of it's functions and datastructures. This allows the whole kube API to be supported with relatively little effort.

Kazan should mostly work though it's not thoroughly tested against the actual kubernetes API. If you find a bug in the library please file an issue (or submit a PR) and I'll try and get it fixed.

I'm reasonably happy with the API at the moment so I don't expect to change it too drastically. However I can't speak for the k8s API specifications that the kazan code is generated from. Also the library is still pre-1.0 so if I find a better way to put it together I may end up changing things.

Looking for some help? Check out kazan's Gitter chatroom.


  • Support for most Kubernetes API calls.
  • Structs for most Kubernetes API structures.
  • Documentation of all models & calls.
  • Client certificate, token and auth provider based authentication.
  • Loading config from kubeconfig files.
  • Support for watch requests.
  • Typespecs for functions and structs (though dialyzer outputs a lot of warnings when run on Kazan)
  • Limited support for custom resources. See the Kazan.Model documentation for more details.

Not Implemented

  • Other forms of authentication
  • Patching with application/json-patch+json or application/strategic-merge-patch+json content types.
  • Removing fields when patching with application/merge-patch+json.
  • Comprehensive tests.
  • Validation of requests.
  • Probably some other things.


If available in Hex, the package can be installed as:

  1. Add kazan to your list of dependencies in mix.exs:
def deps do
  [{:kazan, "~> 0.11"}]
  1. Ensure kazan is started before your application:
def application do
  [applications: [:kazan]]


Kazan uses the Kazan.Server struct to contain server & authentication configuration details. Kazan.Server also provides some convenience functions to create a Kazan.Server from external sources such as a kube config file, or a kube service account.

If your application is only going to be talking to a single kubernetes cluster, then it's recommended to configure that cluster in your mix config. This makes working with kazan slightly easier, as you can call Kazan.run without providing a server every time.

In Cluster Authentication

If your code is going to be running on a kubernetes cluster and you wish to use the kubernetes service account that can be configured like this:

config :kazan, :server, :in_cluster

Alternatively, the Kazan.Server.in_cluster function can be used to create a server for passing straight into Kazan.run

Configuration via kube config file.

If you have a kube config file that contains the cluster & auth details you wish to use, kazan can use that:

config :kazan, :server, {:kubeconfig, "path/to/file"}

Alternatively, the Kazan.Server.from_kubeconfig function can be used to create a server for passing straight into Kazan.run

Configuring server details directly

If you wish to configure the server details manually, kazan can also accept a map of server parameters:

config :kazan, :server, %{url: "kubernetes.default" auth: %{token: "your_token"}}

See the Kazan.Server documentation to see what fields this supports.

Google Kubernetes Engine Config via gcloud

If developing against GKE, gcloud can create a kube config file that Kazan can understand. However, in this case you will need to call Kazan.Server.resolve_auth/2 in order to query gcloud for a valid token. See the docs for Kazan.Server.resolve_auth/2 for more details.


Making a request with Kazan is done in two stages.

  1. Build the request object using one of the functions in Kazan.Api.*.
  2. Run that request using Kazan.run.

For example, to get all of the pods from the server configured in the mix config:

|> Kazan.run!()
# %Kazan.Models.V1.PodList{...}

Alternatively, you might want to specify the server to send the request to:

server = Kazan.Server.in_cluster()

|> Kazan.run!(server: server)
# %Kazan.Apis.Core.V1.PodList{...}

More details on building requests can be found in the documentation for Kazan.Apis.

Details on creating watch requests can be found in the documentation for Kazan.Watcher.