Add support for specifying Kubernetes context via --context flag

README.md

@@ -2,12 +2,12 @@
 
 This app is a plugin for `kubectl`, it allows you to duplicate a running Pod and auto-exec into. The list of Pods is filterable, and you can select the namespace you want.
 
-You can also set these parameters for customization of the duplicata:
+You can also set these parameters for customization of the duplicate:
  - `cpu`
  - `memory`
  - `ttl`
 
-Already created duplicatas remain 4h (by default) and you can exec into them as long they're running.
+Already created duplicates remain 4h (by default) and you can exec into them as long they're running.
 
 ## Requirements
 
@@ -41,7 +41,7 @@ Flags:
 
 ### Install
 
-Download latest release from https://github.com/qonto/kubectl-duplicate/releases and extract `kubectl-duplicate` into your `/usr/loca/bin` and run `chmod -x /usr/local/bin/kubectl-duplicate`.
+Download latest release from https://github.com/qonto/kubectl-duplicate/releases and extract `kubectl-duplicate` into your `/usr/local/bin` and run `chmod -x /usr/local/bin/kubectl-duplicate`.
 
 ### Build
 
@@ -69,14 +69,14 @@ xattr -d com.apple.quarantine /usr/local/bin/kubectl-duplicate
         falcosidekick-5f44cb5bff-jh9wk
     ```
 
-* List pods with already created duplicatas:
+* List pods with already created duplicates:
 
     ```shell
     Search: █
     ? Pods: 
-        falcosidekick-duplicata-nglvr-f569r [duplicata]
-      > falcosidekick-duplicata-kzx9z-kpjh6 [duplicata]
-        falcosidekick-duplicata-mtb9x-lb29p [duplicata]
+        falcosidekick-duplicate-nglvr-f569r [duplicate]
+      > falcosidekick-duplicate-kzx9z-kpjh6 [duplicate]
+        falcosidekick-duplicate-mtb9x-lb29p [duplicate]
         falcosidekick-5f44cb5bff-94sqc
         falcosidekick-5f44cb5bff-jh9wk
         falcosidekick-ui-867f5d6f7-76lfx

main.go

@@ -23,6 +23,8 @@ import (
 var config cfg.Configuration
 var version string
 var commit string
+var noAutoExec bool
+var kubeContext string
 
 func init() {
 	allnamespaces := kingpin.Flag("all-namespaces", "All Namespaces").Bool()
@@ -32,9 +34,14 @@ func init() {
 	config.CPU = kingpin.Flag("cpu", "CPU Request for the duplicated Pod").Short('c').String()
 	config.Memory = kingpin.Flag("memory", "Memory Request for the duplicated Pod").Short('m').String()
 	config.Kubeconfig = kingpin.Flag("kubeconfig", "Kube config file (override by env var KUBECONFIG").Short('k').Default(os.Getenv("HOME") + "/.kube/config").ExistingFile()
+	noAutoExecFlag := kingpin.Flag("no-auto-exec", "Do not automatically exec in to the container").Bool()
+	contextFlag := kingpin.Flag("context", "Kubernetes context to use").String()
 	v := kingpin.Flag("version", "Print version").Short('v').Bool()
 	kingpin.Parse()
 
+	noAutoExec = *noAutoExecFlag
+	kubeContext = *contextFlag
+
 	if *v {
 		fmt.Printf("Version: %s\nCommit: %s\n", version, commit)
 		os.Exit(0)
@@ -47,10 +54,13 @@ func init() {
 	if kc := os.Getenv("KUBECONFIG"); kc != "" {
 		*config.Kubeconfig = kc
 	}
+
 }
 
 func main() {
-	kubeconfig, err := clientcmd.BuildConfigFromFlags("", *config.Kubeconfig)
+	loadingRules := &clientcmd.ClientConfigLoadingRules{ExplicitPath: *config.Kubeconfig}
+	configOverrides := &clientcmd.ConfigOverrides{CurrentContext: kubeContext}
+	kubeconfig, err := clientcmd.NewNonInteractiveDeferredLoadingClientConfig(loadingRules, configOverrides).ClientConfig()
 	if err != nil {
 		panic(err.Error())
 	}
@@ -85,11 +95,13 @@ func main() {
 		s.Stop()
 	}
 
-	startShell(pod.Name, container.Name, config.Namespace)
+	if !noAutoExec {
+		startShell(pod.Name, container.Name, config.Namespace)
+	}
 }
 
 func startShell(pod, container string, namespace *string) {
-	cmd := exec.Command(os.Getenv("SHELL"), "-c", "kubectl attach "+pod+" -n "+*namespace+" -t -i -c "+*namespace+"-"+container+"-exec")
+	cmd := exec.Command(os.Getenv("SHELL"), "-c", "kubectl attach "+pod+" -n "+*namespace+" -t -i -c "+container+"-exec")
 	cmd.Stdout = os.Stdout
 	cmd.Stdin = os.Stdin
 	cmd.Stderr = os.Stderr

pkg/create/create.go

@@ -13,7 +13,7 @@ import (
 	"k8s.io/client-go/kubernetes"
 )
 
-// Job creates the Job for Duplicata
+// Job creates the Job for duplicate
 func Job(clientset *kubernetes.Clientset, config config.Configuration, deployment appsv1.Deployment, container corev1.Container) (*batchv1.Job, error) {
 	execAction := new(corev1.ExecAction)
 	execAction.Command = []string{"true"}
@@ -51,7 +51,7 @@ func Job(clientset *kubernetes.Clientset, config config.Configuration, deploymen
 
 	job := &batchv1.Job{
 		ObjectMeta: metav1.ObjectMeta{
-			GenerateName: deployment.ObjectMeta.Name + "-duplicata-",
+			GenerateName: deployment.ObjectMeta.Name + "-duplicate-",
 			Annotations: map[string]string{
 				"end-at": endAt.Format("2006-01-02 15:04:05"),
 			},
@@ -65,7 +65,7 @@ func Job(clientset *kubernetes.Clientset, config config.Configuration, deploymen
 			BackoffLimit:            &backoffLimit,
 			Template: corev1.PodTemplateSpec{
 				ObjectMeta: metav1.ObjectMeta{
-					GenerateName: deployment.ObjectMeta.Name + "-duplicata-",
+					GenerateName: deployment.ObjectMeta.Name + "-duplicate-",
 					Annotations: map[string]string{
 						"end-at": endAt.Format("2006-01-02 15:04:05"),
 					},

pkg/list/list.go

@@ -55,12 +55,12 @@ func PodsForJob(clientset *kubernetes.Clientset, config config.Configuration, jo
 func sort(pods []corev1.Pod) []corev1.Pod {
 	var sortedPods []corev1.Pod
 	for _, i := range pods {
-		if strings.Contains(i.ObjectMeta.Name, "-duplicata-") {
+		if strings.Contains(i.ObjectMeta.Name, "-duplicate-") {
 			sortedPods = append(sortedPods, i)
 		}
 	}
 	for _, i := range pods {
-		if !strings.Contains(i.ObjectMeta.Name, "-duplicata-") {
+		if !strings.Contains(i.ObjectMeta.Name, "-duplicate-") {
 			sortedPods = append(sortedPods, i)
 		}
 	}

pkg/selector/selector.go

@@ -23,8 +23,8 @@ func Pod(pods []corev1.Pod, match string) corev1.Pod {
 
 	templates := &promptui.SelectTemplates{
 		// Label: `		`,
-		Active:   `{{ "> " | cyan | bold }}{{ .ObjectMeta.Name | cyan | bold }}{{if (index .ObjectMeta.Annotations "end-at")}}{{ " [duplicata]" }}{{ end }}`,
-		Inactive: `  {{ .ObjectMeta.Name }}{{if (index .ObjectMeta.Annotations "end-at")}}{{ " [duplicata]" }}{{ end }}`,
+		Active:   `{{ "> " | cyan | bold }}{{ .ObjectMeta.Name | cyan | bold }}{{if (index .ObjectMeta.Annotations "end-at")}}{{ " [duplicate]" }}{{ end }}`,
+		Inactive: `  {{ .ObjectMeta.Name }}{{if (index .ObjectMeta.Annotations "end-at")}}{{ " [duplicate]" }}{{ end }}`,
 		Details: `
 {{if (index .ObjectMeta.Annotations "end-at")}}{{ " End: " }}{{ index .ObjectMeta.Annotations "end-at" | bold }}{{ end }}`,
 	}