Rename coordinator to bootstrapper and rename roles

bootstrapper/cloudprovider/azure/securityGroup.go

@@ -0,0 +1,19 @@
+package azure
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/Azure/azure-sdk-for-go/sdk/resourcemanager/network/armnetwork"
+)
+
+// getNetworkSecurityGroup retrieves the list of security groups for the given resource group.
+func (m *Metadata) getNetworkSecurityGroup(ctx context.Context, resourceGroup string) (*armnetwork.SecurityGroup, error) {
+	pager := m.securityGroupsAPI.List(resourceGroup, nil)
+	for pager.NextPage(ctx) {
+		for _, securityGroup := range pager.PageResponse().Value {
+			return securityGroup, nil
+		}
+	}
+	return nil, fmt.Errorf("no security group found for resource group %q", resourceGroup)
+}