Kubernetes Client Lambda

What is Kubernetes Client Lambda?

Kubernetes Client Lambda (aka KCL) is a wrapper library for kubernetes/client-go. Basically it contains these following feature:

• Dynamic client & client pool
• Hide details about client-go's informer and lister.
• Hide annoying group & versions and use resources as enum.
• Lambda styled resource filtering & manipulating. (inspired by Groovy)
• It's really easy to use.

With KCL, you can operate kubernetes resources like this example:

// See doc for more info about lambda functions Grep / Map..
import kubernetes "github.com/yue9944882/kubernetes-client-lambda"

// In-Cluster example
// var kcl kubernetes.KubernetesClientLambda = kubernetes.InCluster()
kubernetes.InCluster().Type(kubernetes.ReplicaSet).InNamespace("test").
    List().
    NamePrefix("foo-").
    Map(func(rs *api_ext_v1.ReplicaSet) rs*api_ext_v1.ReplicaSet {
        // Edit in-place or clone a new one
        rs.Meta.Labels["foo-label1"] = "test" 
        return rs
    }).Update()


// Out-Of-Cluster example
kubernetes.OutOfClusterDefault().Type(kubernetes.Pod).InNamespace("devops").
    List().
    NameEqual("test-pod").Each(
        func(pod *api_v1.Pod) {
            count++
    })

As the following example is shown, Calling Mock() on Kubernetes Type Enumeration will create the expected mocking resources for you:

import kubernetes "github.com/yue9944882/kubernetes-client-lambda"

var kcl KubernetesClientLambda = kubernetes.Mock()

How to Get it?

go get github.com/yue9944882/kubernetes-client-lambda

Supported Lambda Function Type

We support following types of lambda function:

Primitive Lambda Type

Kubernetes Resource Lambda Snippet

And these lambda can be consumed by following function:

Primitive Pipeline Type

Primitive methods like CreateIfNotExist, DeleteIfExist have no parameter and just consumes all elements at the end of the pipelining. Here are supported primitive kubernetes operation functions below:

Basic Operation

Kubernetes Operation