Added support for configuration per project

Shoots with type==Infrastructure will not be considered to be added to Fleet

pkg/controller/fleetmanager.go

@@ -2,7 +2,13 @@ package controller
 
 import (
 	"context"
+	b64 "encoding/base64"
 
+	"github.com/go-logr/logr"
+
+	"k8s.io/client-go/tools/clientcmd"
+
+	fleetConfig "github.com/javamachr/gardener-extension-shoot-fleet-agent/pkg/apis/config"
 	clientset "github.com/javamachr/gardener-extension-shoot-fleet-agent/pkg/client/fleet/clientset/versioned"
 	"github.com/rancher/fleet/pkg/apis/fleet.cattle.io/v1alpha1"
 	corev1 "k8s.io/api/core/v1"
@@ -66,3 +72,31 @@ func (f *FleetManager) CreateKubeconfigSecret(ctx context.Context, secret *corev
 func (f *FleetManager) DeleteKubeconfigSecret(ctx context.Context, secretName string) error {
 	return f.secretClient.CoreV1().Secrets(f.namespace).Delete(ctx, secretName, metav1.DeleteOptions{})
 }
+
+// createFleetManager creates fleet manager for given configuration
+func createFleetManager(config fleetConfig.ProjectConfig, logger logr.Logger) *FleetManager {
+	logger.Info("Creating Fleet manager for config", "config", config)
+	fleetKubeConfig, err := b64.StdEncoding.DecodeString(config.Kubeconfig)
+	if err != nil {
+		panic(err)
+	}
+	var kubeconfigPath string
+	if kubeconfigPath, err = writeKubeconfigToTempFile(fleetKubeConfig); err != nil {
+		panic(err)
+	}
+	logger.Info("Written kubeconfig to temp", "file", kubeconfigPath)
+	fleetClientConfig, err := clientcmd.BuildConfigFromFlags("", kubeconfigPath)
+	if err != nil {
+		panic(err)
+	}
+	logger.Info("Fleet k8s client successfully built.")
+	var fleetNamespace = "clusters"
+	if len(config.Namespace) != 0 {
+		fleetNamespace = config.Namespace
+	}
+	fleetManager, err := NewManagerForConfig(fleetClientConfig, fleetNamespace)
+	if err != nil {
+		panic(err)
+	}
+	return fleetManager
+}