add kubectl scripts

modules/cli/default.nix

@@ -1,6 +1,9 @@
 { config, pkgs, lib, ... }:
 {
-  imports = [ ./powerline.nix ];
+  imports = [
+    ./kubectl.nix
+    ./powerline.nix
+  ];
 
   sconfig.powerline.enable = lib.mkDefault true;
 
@@ -15,8 +18,6 @@
     inetutils
     iotop
     jq
-    kubectl
-    kubernetes-helm
     lm_sensors
     ncdu
     nix-index

modules/cli/kubectl.nix

@@ -0,0 +1,21 @@
+{ config, pkgs, lib, ... }:
+{
+  programs.bash.interactiveShellInit = ''
+    kc(){
+      export KUBECONFIG=~/.kube/config."$1"
+      kubectl get nodes
+    }
+    _kc_completion(){
+      [ "''${#COMP_WORDS[@]}" != "2" ] ||
+      COMPREPLY=($(compgen -W "$(ls ~/.kube/ | grep '^config\.' | sed 's/^config\.//g')" -- "''${COMP_WORDS[1]}"))
+    }
+    complete -F _kc_completion kc
+    source <(kubectl completion bash)
+    complete -F __start_kubectl k
+    alias k=kubectl
+  '';
+  environment.systemPackages = [
+    pkgs.kubectl
+    pkgs.kubernetes-helm
+  ];
+}