🔧 use rename-context in place of set-context

kubectx

@@ -36,9 +36,9 @@ usage() {
   cat <<"EOF"
 USAGE:
   kubectx                   : list the contexts
-  kubectx <NAME>            : switch to context
+  kubectx <NAME>            : switch to context <NAME>
   kubectx -                 : switch to the previous context
-  kubectx <NEW_NAME>=<NAME> : create alias for context
+  kubectx <NEW_NAME>=<NAME> : rename context <NAME> to <NEW_NAME>
   kubectx -h,--help         : show this message
 EOF
   exit 1
@@ -107,7 +107,7 @@ cluster_of_context() {
     -o=jsonpath="{.contexts[?(@.name==\"${1}\")].context.cluster}"
 }
 
-alias_context() {
+rename_context() {
   local old_name="${1}"
   local new_name="${2}"
 
@@ -119,11 +119,7 @@ alias_context() {
     exit 1
   fi
 
-  kubectl config set-context "${new_name}" \
-    --cluster="${old_cluster}" \
-    --user="${old_user}" \
-
-  echo "Aliased \"${old_name}\" as \"${new_name}\"." >&2
+  kubectl config rename-context "${old_name}" "${new_name}"
 }
 
 main() {
@@ -141,7 +137,7 @@ main() {
       echo "error: unrecognized flag \"${1}\"" >&2
       usage
     elif [[ "${1}" =~ (.+)=(.+) ]]; then
-      alias_context "${BASH_REMATCH[2]}" "${BASH_REMATCH[1]}"
+      rename_context "${BASH_REMATCH[2]}" "${BASH_REMATCH[1]}"
     else
       set_context "${1}"
     fi