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AWS EKS + Kubeconfig ​

Update kubeconfig ​

Create kube config file using aws eks update-kubeconfig. Make sure to define the variable KUBECONFIG that points to your desired kube config location.

bash
KUBECONFIG=/path/to/config \
aws eks update-kubeconfig \
--region <region> \
--name <cluster-name>
KUBECONFIG=/path/to/config \
aws eks update-kubeconfig \
--region <region> \
--name <cluster-name>

If you successfully update the config, you will see a output log like this:

bash
Added new context arn:aws:eks:...:cluster/cluster-name to /path/to/config
Added new context arn:aws:eks:...:cluster/cluster-name to /path/to/config

Merge config files ​

bash
KUBECONFIG=/path/to/config-1:/path/to/config-2 \
kubectl config view --flatten > ~/.kube/config
KUBECONFIG=/path/to/config-1:/path/to/config-2 \
kubectl config view --flatten > ~/.kube/config

Switch between clusters ​

First, we can list the current context with get-contexts command

bash
kubectl config get-contexts
kubectl config get-contexts

This will show you the available clusters that you are connected to.

To switch contexts, run the command use-context with one of the available contexts.

bash
kubectl config use-context <context-name>
kubectl config use-context <context-name>