To copy data or to install software from cdrom, the Administrator needs to modify machine configuration file. The Administrator can do this on a stopped machine by selecting 'Edit Config' 
from the "Ops" menu on the machines tab/page. That will display a machine configuration file .
Add the tag given below within the <devices> tag.
<disk device='cdrom' type='file'>
<target bus='ide' dev='hdb'/>
</disk>
To boot a machine from iso file change <source file='/dev/cdrom'/> tag to <source file='/isoshare/<iso file name>'/>
To get help on how to add iso in infracc server refer help video at
Help > User guide > Workflows on infracc > Adding ISO
make sure that device id 'dev=hdb' does not clash with disk id.
after doing this click on 'Save' button and start the machine.
To boot machine from cd you need to add tag given below.
<boot dev='cdrom'/>
add given tag in <os> tag above "<boot dev='hd'/>" tag.