Add GetServer func

Signed-off-by: Nguyen Thanh Nguyen <[email protected]>

Author: ntnguyencse

docs/developer/configuration.md

@@ -0,0 +1,29 @@
+## Configuration file
+
+EMCO Configuration File:
+`
+EMCOConfigPath                         = "/home/ubuntu/l-kaas/L-KaaS/pkg/emcoclient/.emco.yaml"
+`
+
+EMCO Default Configuration File:
+`
+EMCO_DEFAULT_CONFIG_FILE_PATH          = "/.l-kaas/config/emco/.emco.yaml"
+`
+
+
+## CAPI Resources Template Compatible
+
+CAPI Template Example: 
+File name: `cluster-template.yaml`
+Link folder: `
+https://github.com/ntnguyencse/L-KaaS/blob/dev/templates/capi/
+`
+
+## EMCO Resources Template 
+
+Configuare:
+`
+	EmptyProfileForCompositeAppURL = "https://raw.githubusercontent.com/ntnguyencse/L-KaaS/main/templates/emco/vfw/vfw/profile.tar.gz"
+	CompositeAppTemplateURL        = "https://raw.githubusercontent.com/ntnguyencse/L-KaaS/main/templates/emco/vfw/vfw/test-vfw.yaml"
+	PrerequisiteCompositeAppURL    = "https://raw.githubusercontent.com/ntnguyencse/L-KaaS/main/templates/emco/vfw/vfw/prerequisites.yaml"
+`

pkg/kubernetes-client/serverversion.go

@@ -0,0 +1,34 @@
+package kubernetesclient
+
+import (
+	"fmt"
+
+	"k8s.io/apimachinery/pkg/version"
+	"k8s.io/client-go/discovery"
+	"k8s.io/client-go/tools/clientcmd"
+)
+
+func GetKubernetesServerVersion(kubeConfigPath string) (*version.Info, error) {
+
+	config, err := clientcmd.BuildConfigFromFlags("", kubeConfigPath)
+	if err != nil {
+		fmt.Println("Error :", err)
+		return nil, err
+	}
+
+	discoveryClient, err := discovery.NewDiscoveryClientForConfig(config)
+	if err != nil {
+		fmt.Println("error in discoveryClient", err)
+		return nil, err
+	}
+
+	information, err := discoveryClient.ServerVersion()
+	if err != nil {
+		fmt.Println("Error while fetching server version information", err)
+		return nil, err
+	}
+
+	fmt.Println("Version", information)
+	return information, err
+
+}