Enable NOVNC feature in UCSD

[chuangzl]

Configure:

1. starting VNC service on esxi

enable VNC service on Firewall in each ESXI Host.

like this:

~ # cd /etc/vmware/firewall

/etc/vmware/firewall # vi vnc.xml

<!--Config for VNC-->

<ConfigRoot>

<service>

<id>VNC</id>

<rule id='0000'>

<direction>inbound</direction>

<protocol>tcp</protocol>

<porttype>dst</porttype>

<port>

<begin>5901</begin>

<end>5999</end>

</port>

</rule>

<rule id='0001'>

<direction>outbound</direction>

<protocol>tcp</protocol>

<porttype>dst</porttype>

<port>

<begin>0</begin>

<end>65535</end>

</port>

</rule>

<enabled>true</enabled>

<required>false</required>

</service>

</ConfigRoot>

/etc/vmware/firewall # cd

~ # esxcli network firewall refresh

~ # esxcli network firewall ruleset list|grep VNC

VNC                          true

~ #

2.     adding config vnc Task into workflow after creating a VM.

Programming:

1. using fenced:userAPIGetVNCURL api to get novnc's visiting url.