How to create a kubectl config file for serviceaccount

ghz 1years ago ⋅ 861 views

Question

I have a kubernetes cluster on Azure and I created 2 namespaces and 2 service accounts because I have two teams deploying on the cluster. I want to give each team their own kubeconfig file for the serviceaccount I created.

I am pretty new to Kubernetes and haven't been able to find a clear instruction on the kubernetes website. How do I create a kube config file for a serviceaccount? Hopefully someone can help me out :), I rather not give the default kube config file to the teams.

With kind regards,

Bram

Answer

# your server name goes here
server=https://localhost:8443
# the name of the secret containing the service account token goes here
name=default-token-sg96k

ca=$(kubectl get secret/$name -o jsonpath='{.data.ca\.crt}')
token=$(kubectl get secret/$name -o jsonpath='{.data.token}' | base64 --decode)
namespace=$(kubectl get secret/$name -o jsonpath='{.data.namespace}' | base64 --decode)

echo "
apiVersion: v1
kind: Config
clusters:
- name: default-cluster
  cluster:
    certificate-authority-data: ${ca}
    server: ${server}
contexts:
- name: default-context
  context:
    cluster: default-cluster
    namespace: default
    user: default-user
current-context: default-context
users:
- name: default-user
  user:
    token: ${token}
" > sa.kubeconfig
#kubernetes