Don't load kubernetes client until cli app starts

.github/workflows/test.yaml

@@ -1,10 +1,10 @@
-name: run-tests
+name: test-and-build
 
 on: [push]
 
 jobs:
   build:
-    name: run-tests
+    name: test-and-build
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3

README.md

@@ -7,7 +7,7 @@
 
 Is your Kubernetes cluster unhealthy? Do your workloads have symptoms? Then maybe it needs a checkup with `kube-doctor` 🏥
 
-```shell
+```console
 $ kube-doctor --warning-symptoms --non-namespaced-resources
 == Checking DaemonSet resources
 👀 DaemonSet kube-system/efs-csi-node: efs-plugin no resources specified
@@ -93,66 +93,66 @@ This tool will check for the following symptoms:
 
 By default `kube-doctor` will check all namespaces but it can also target a specific namespace:
 
-```shell
+```console
 kube-doctor --namespace kube-system
 ```
 
 Or label selector;:
 
-```shell
+```console
 kube-doctor --label-selector app.kubernetes.io/name=prometheus
 ```
 
 Or a combination of both:
 
-```shell
+```console
 kube-doctor --label-selector app.kubernetes.io/name=prometheus --namespace monitoring
 ```
 
 Non-namespaced resources like nodes can be checked with the `--non-namespaced-resources` flag:
 
-```shell
+```console
 kube-doctor --non-namespaced-resources
 ```
 
 To see other options, including debug logging, consult the help:
 
-```shell
+```console
 kube-doctor --help
 ```
 
 ## Installation
 
 Check out code and build:
 
-```shell
+```console
 git clone [email protected]:max-rocket-internet/kube-doctor.git
 cd kube-doctor
 go build ./... && go install ./...
 ```
 
 Run from `main` branch without `git`:
 
-```shell
+```console
 go install github.com/max-rocket-internet/kube-doctor@latest
 cd $GOPATH/pkg/mod/github.com/max-rocket-internet/kube-doctor*/
 go run main.go
 ```
 
-To get a binary, check [the releases](https://github.com/max-rocket-internet/kube-doctor/releases).
+To download a binary, check [the releases](https://github.com/max-rocket-internet/kube-doctor/releases).
 
 ## Contributing
 
 Pull requests welcome 💙
 
 To run all tests:
 
-```shell
+```console
 go test ./...
 ```
 
 Or just a single package:
 
-```shell
+```console
 go test ./.../checkup
 ```

pkg/doctor/checkup.go

@@ -11,6 +11,8 @@ import (
 )
 
 func DoCheckUp(cCtx *cli.Context) {
+	kubernetes.Init()
+
 	log.Setup(cCtx.Bool("debug"), cCtx.Bool("warning-symptoms"))
 	log.Debug(fmt.Sprintf("Connected to cluster from context %s running version %s", kubernetes.ContextName, kubernetes.ServerVersion))
 

pkg/kubernetes/kubernetes.go

@@ -18,11 +18,15 @@ import (
 )
 
 var (
-	client        = createClient()
-	ContextName   = ""
-	ServerVersion = ""
+	client        *kubernetes.Clientset
+	ContextName   string
+	ServerVersion string
 )
 
+func Init() {
+	client = createClient()
+}
+
 func createClient() *kubernetes.Clientset {
 	loadingRules := clientcmd.NewDefaultClientConfigLoadingRules()
 	configOverrides := &clientcmd.ConfigOverrides{}