动态设置 KUBECONFIG 环境变量

Question

I am quite new to Bash and working on multiple kubernetes cluster. I wanted some kind of utility wherein I can set my KUBECONFIG variable dynamically as I work on multiple clusters. My kubeconfig file lies in multiple folders. What I want is to find all the kubeconfig files , get the paths and concatenate the paths with colon , set it to KUBECONFIG variable and export it in bashrc file.

I know pieces of command but not able to frame full code.

find /Users/anandabhishe/gitlab/ -name kubeconfig.yaml -exec echo {} \; 

I want to concatenate the output of find command and set my KUBECONFIG. like this "

export KUBECONFIG=/Users/anandabhishe/gitlab/work2/kubeconfigs/scdc1-staging-hrwork-dev/kubeconfig.yaml:/Users/anandabhishe/gitlab/work2/kubeconfigs/scdc2-prod-hrwork-uat/kubeconfig.yaml:/Users/anandabhishe/gitlab/work2/kubeconfigs/scdc2-prod-hrwork/kubeconfig.yaml "

Answer 1

你可以尝试这样的事情：

export KUBECONFIG=$(for i in $(find /Users/anandabhishe/gitlab/ -iname 'kubeconfig.yaml') ; do echo -n ":$i"; done | cut -c 2-)

Answer 2

you can merge ( https://stackoverflow.com/a/63177022/5525824 ) multiple kubeconfig files in single file set it in .kube folder and list Kubernets cluster using

kubectl config get-contexts

change default Kubernetes cluster config by

kubectl config use-context

the above command will change default Kubernetes cluster also for helm as well.

For more details, you can follow: https://kubernetes.io/docs/tasks/access-application-cluster/configure-access-multiple-clusters/

Update :

you can do something like

find ./wotnot -name kubeconfig.yaml -print0

output would be something like

/Users/anandabhishe/gitlab/work2/kubeconfigs/scdc1-staging-hrwork-dev/kubeconfig.yaml./Users/anandabhishe/gitlab/work2/kubeconfigs/scdc2-prod-hrwork-uat/kubeconfig.yaml./Users/anandabhishe/gitlab/work2/kubeconfigs/scdc2-prod-hrwork/kubeconfig.yaml

save output in one variable

replace path ./ with : using sed