Merge multiple kubeconfigs

Merge multiple ~/.kube/config into one using kubectl konfig merge

1) Make a backup of your current ~/.kube/config

cp ~/.kube/config ~/.kube/config.BAK.$(date '+%Y-%m-%d_%H%M')

2) Use kubectl konfig merge for merge files:

kubectl konfig merge ~/.kube/config yournewcluster-configfile > merged_kubeconfig

3) Overwrite your old ~/.kube/config with your new file

cp merged_kubeconfig ~/.kube/config

for CLUSTER in $(rancher cluster ls | grep -v NAME | cut -d"*" -f2- | awk '{print $3}' ); do rancher cluster kubeconfig $CLUSTER > $CLUSTER.kubeconfig; done

Related

• date: date '+%Y-%m-%d_%H%M'
• kubectl config get-contexts
• kubectl config use-context

See also

• konfig: kubectl konfig merge
• kubectl config [ view | get-contexts | current-context | get-clusters | set-context | set-credentials ], ~/.kube/config, kubectl config --help, kubectx, Kubernetes contexts, KUBECONFIG, kubectl --kubeconfig