feat(wait): add MongoDBOperator readiness check

utils.go

@@ -393,6 +393,10 @@ func IsPostgresql(obj *unstructured.Unstructured) bool {
 	return obj.GetKind() == "postgresql"
 }
 
+func IsMongoDB(obj *unstructured.Unstructured) bool {
+	return obj.GetKind() == "PerconaServerMongoDB"
+}
+
 func NewDeployment(ns, name, image string, labels map[string]string, port int32, args ...string) *apps.Deployment {
 	if labels == nil {
 		labels = make(map[string]string)

wait.go

@@ -214,6 +214,8 @@ func (c *Client) IsReady(item *unstructured.Unstructured) (bool, string) {
 		return c.IsPostgresqlReady(item)
 	case IsConstraintTemplate(item):
 		return c.IsConstraintTemplateReady(item)
+	case IsMongoDB(item):
+		return c.IsMongoDBReady(item)
 	}
 
 	if item.Object["status"] == nil {
@@ -260,6 +262,21 @@ func IsElasticReady(item *unstructured.Unstructured) (bool, string) {
 	return true, ""
 }
 
+func (c *Client) IsMongoDBReady(item *unstructured.Unstructured) (bool, string) {
+	status := item.Object["status"]
+
+	if status == nil {
+		return false, "⏳ waiting to become ready"
+	}
+
+	state := item.Object["status"].(map[string]interface{})["state"]
+	if state != "ready" {
+		return false, "⏳ waiting to become ready"
+	}
+
+	return true, ""
+}
+
 func (c *Client) IsElasticsearchReady(item *unstructured.Unstructured) (bool, string) {
 	name := item.GetName()
 	namespace := item.GetNamespace()