[chef] Can chef parse the attribute list and handle it while creating templates

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Hi All,


I have an attribute which I must pass as list and update it in the template
file But it seems the attributes are taken as literal string during chef-run.
Is there a way to pass a list and handle it in templates  ?



default['zabbix']['agent']['servers_active'] = "hostname"


default['zabbix']['agent']['servers_active'] = "[ "hostname1", "hostname2" ]"

Template where this list need to 
ServerActive=<%= node.zabbix.agent.server_active %>
Desired Output 
ServerActive=hostname1,hostname2

thanks for your response in advance!
Tarun