kubetools

A collection of small tools to speed up deployments and administrative tasks on different Kubernetes clusters

Requirements

Drop each cluster's configuration file under the directory .kube in your home directory, and rename it in the format config.NS_NAME.

For example, assuming we have 2 clusters: sandbox and dev, then the ~/.kube directory must have the following files

user@hostname $ ls ~/.kube
config.dev
config.sandbox

Now, lets assume we just deployed a namespace called qa in the same infrastructure hosting dev, then all we have to do is just copy the config file with a different NS_NAME

user@hostname $ cp ~/.kube/config.dev ~/config.qa
user@hostname $ ls ~/.kube
config.dev
config.qa
config.sandbox

Notice that you must copy the file, not a symlink to config.NS_NAME file, as this might create conflict with the way how kubeconfig works.

Examples

kubeconfig

By default kubeconfig returns the list of context availables:

user@hostname $ kubeconfig
The available kubernetes clusters are:
	 * dev [ Currently Selected ]
	 * qa
	 * sandbox

Context: dev

If you want to change to sandbox, just append the name to the command

user@hostname $ kubeconfig sandbox
The available kubernetes clusters are:
         * dev
         * qa
         * sandbox [ Currently Selected ]

Context: sandbox

NOTE: If there are more than one context in the cluster, then, the first on the list be selected.

kubedeploy

The kubedeploy command, is a tool to assist restarting a deployment and leaving an annotation on the selected deployment.

The tool will attempt to find and list all the deployments available on the selected cluster by the kubeconfig tool.

kubetoken

The kubetoken command will lookup for all the tokens on the specified namespace. If no namespace is specified, then I'll try to fetch the token from kube-system.