[murano-apps][kubernetes]Sometimes updatePod fails with [spec.containers[0].env[0].name: required value, spec.containers[0].env[0].name: invalid value \'\': must match regex [A-Za-z_][A-Za-z0-9_]*]'

[Anastasia Kuznetsova]

Steps to reproduce:
1. Create environment
2. Add kubernetes cluster to it (1 minion, 1 gataway, replicas=0)
3. Add kubernetes pod to env (pod name = "pod", no labels)
4. Add some kubernetes app to the env
5. Send env to deploy

Observed result:
Deploy fails with following error:
[murano.engine.system.agent.AgentException]: {'errorCode': 100, 'message': u'Script updatePod returned error code', 'extra': None, 'details': {u'stdout': None, u'stderr': u'Error: Pod "pod" is invalid: [spec.containers[0].env[0].name: required value, spec.containers[0].env[0].name: invalid value \'\': must match regex [A-Za-z_][A-Za-z0-9_]*]', u'exitCode': 1}, 'time': u'2015-04-23 17:42:45.837383'}

Part of agent log will be attached.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/kilo
Review: https://review.openstack.org/177238

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/177243

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/177243
Committed: https://git.openstack.org/cgit/openstack/murano-apps/commit/?id=b94627d3b5740f010768a017df1ee44b3ea4cef0
Submitter: Jenkins
Branch: master

commit b94627d3b5740f010768a017df1ee44b3ea4cef0
Author: Stan Lagun <email address hidden>
Date: Fri Apr 24 16:03:27 2015 +0300

    Fixes env validation in k8s 0.15/API v1beta3

    for ENV variables parameter name was renamed from "key" to "name"

    Closes Bug: #1447948

    Change-Id: I2977800eaa8606c934ee33b907a68981753696c7

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/177238
Committed: https://git.openstack.org/cgit/openstack/murano-apps/commit/?id=3d4ebc43b07b242fdbba671221cc9f73e35fa69e
Submitter: Jenkins
Branch: stable/kilo

commit 3d4ebc43b07b242fdbba671221cc9f73e35fa69e
Author: Stan Lagun <email address hidden>
Date: Fri Apr 24 16:03:27 2015 +0300

    Fixes env validation in k8s 0.15/API v1beta3

    for ENV variables parameter name was renamed from "key" to "name"

    Closes Bug: #1447948

    Change-Id: I2977800eaa8606c934ee33b907a68981753696c7