From 16c505483b86024eaa29268970c3b7a89be0a555 Mon Sep 17 00:00:00 2001
From: Dmytro Dovbii <ddovbii@mirantis.com>
Date: Mon, 20 Apr 2015 13:49:21 +0300
Subject: [PATCH] Add validators to k8s pod UI

Kubernetes imposes a number of restrictions for the names
of pods and labels syntax.
This patch adds validation of pod name and labels fields.

Change-Id: If93d1cc8750f1550aaa9649fdc012c302560b88d
Closes-Bug: #1445149
---
 .../Kubernetes/KubernetesPod/package/UI/ui.yaml   | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/Docker/Kubernetes/KubernetesPod/package/UI/ui.yaml b/Docker/Kubernetes/KubernetesPod/package/UI/ui.yaml
index 97ef04f4..9e59bd44 100644
--- a/Docker/Kubernetes/KubernetesPod/package/UI/ui.yaml
+++ b/Docker/Kubernetes/KubernetesPod/package/UI/ui.yaml
@@ -14,16 +14,27 @@ Forms:
       fields:
         - name: name
           type: string
+          regexpValidator: '^[a-z0-9]([a-z0-9.-]{0,251})?[a-z0-9]$'
+          maxLength: 253
           label: Pod Name
           description: >-
             Name of the pod to create.
-            This name must be unique throughout the cluster
+            This name must be unique throughout the cluster. The name should be up to maximum
+            length of 253 characters and consist of lower case alphanumeric characters, hyphens, and dots.
         - name: labels
           type: string
+          #NOTE(ddovbii): this regexp is used here because of k8s restrictions: https://github.com/GoogleCloudPlatform/kubernetes/blob/master/docs/labels.md#syntax-and-character-set
+          regexpValidator: '^(([a-zA-Z0-9]([a-zA-Z0-9\.]{0,251}[a-zA-Z0-9])?\/)?([a-zA-Z0-9]([a-zA-Z0-9\-]{0,61}[a-zA-Z0-9])?)=[A-Za-z0-9][-\w.]{0,63})?(,([a-zA-Z0-9]([a-zA-Z0-9\.]{0,251}[a-zA-Z0-9])?\/)?([a-zA-Z0-9]([a-zA-Z0-9\-]{0,61}[a-zA-Z0-9])?)=[A-Za-z0-9][-\w.]{0,63})*$'
           label: Labels
           required: false
           description: >-
-            Comma separated list of labels. Allows easy selecting in the future
+            Comma separated list of labels. Allows easy selecting in the future.
+            Valid label keys have two segments - prefix and name - separated by a slash.
+            The name segment is required and must be a DNS label 63 characters or less, all lowercase,
+            beginning and ending with an alphanumeric character, with dashes and alphanumerics between.
+            The prefix and slash are optional. If specified, the prefix must be a DNS subdomain.
+            Valid label values must be shorter than 64 characters, accepted characters are ([-A-Za-z0-9_.])
+            but the first character must be ([A-Za-z0-9]).
         - name: kubernetesCluster
           type: io.murano.apps.docker.kubernetes.KubernetesCluster
           label: Kubernetes cluster