Re: [one-users] how to overload context for one specific vm in oneflow template
Hi, On Fri, Jan 23, 2015 at 2:06 PM, Madko madk...@gmail.com wrote: We'd like to have 4 VMs 1 VM with role LVS, no problem here, using a lvs VM template 3 VM with role WEB, using a web VM template. I need to set explicitly their hostnames, no digit allowed (let's say obfuscated-vm-name-a, obfuscated-vm-name-b and obfuscated-vm-name-ab) how do I set each hostname in the service template? I think the best option is to have one role for each VM. My guess is that if we came up with a new generic syntax to define a vm_template_contents for each VM, it would probably be just as inconvenient as having one Role per VM. But for your specific case, maybe you can define a string with a list of hostnames, e.g. : host_a,host_b,host_c And then create a context script to coordinate which hostname has to be set for each instance. The onegate component [1] may be useful for this. Regards. [1] http://docs.opennebula.org/4.10/advanced_administration/application_flow_and_auto-scaling/appflow_use_cli.html#sharing-information-between-vms -- Carlos Martín, MSc Project Engineer OpenNebula - Flexible Enterprise Cloud Made Simple www.OpenNebula.org http://www.opennebula.org/ | cmar...@opennebula.org | @OpenNebula http://twitter.com/opennebula On Fri, Jan 23, 2015 at 2:06 PM, Madko madk...@gmail.com wrote: Sorry I don't think it fit our use case. We'd like to have 4 VMs 1 VM with role LVS, no problem here, using a lvs VM template 3 VM with role WEB, using a web VM template. I need to set explicitly their hostnames, no digit allowed (let's say obfuscated-vm-name-a, obfuscated-vm-name-b and obfuscated-vm-name-ab) how do I set each hostname in the service template? Le Fri Jan 23 2015 at 12:11:07, Carlos Martín Sánchez cmar...@opennebula.org a écrit : Hi there, On Thu, Jan 22, 2015 at 2:18 PM, Madko madk...@gmail.com wrote: How do you set hostname to VMs inside roles when you can't use numeric hostname (ie hostname%i)? You can use the VM ID inside the context, the following works for me: CONTEXT = [ HOSTNAME = TEST_$VMID ] Or the VM name. This VM name can be changed the vm_name_template option in oneflow-server.conf [1]. CONTEXT = [ HOSTNAME = $NAME ] Does it fit your use case? Regards [1] http://docs.opennebula.org/4.10/advanced_administration/application_flow_and_auto-scaling/appflow_configure.html -- Carlos Martín, MSc Project Engineer OpenNebula - Flexible Enterprise Cloud Made Simple www.OpenNebula.org | cmar...@opennebula.org | @OpenNebula http://twitter.com/opennebula cmar...@opennebula.org On Thu, Jan 22, 2015 at 2:18 PM, Madko madk...@gmail.com wrote: That's what we were doing untill now, service template with 10 or more VM and therefor 10 or more roles (1:1 ratio) are not really convenient. But thanks for your suggestion. Maybe I'm missing something. Is it possible to change vm_template_contents to some sort of array? How do you set hostname to VMs inside roles when you can't use numeric hostname (ie hostname%i)? best regards Le Thu Jan 22 2015 at 11:25:29, Carlos Martín Sánchez cmar...@opennebula.org a écrit : Hi, On Wed, Jan 21, 2015 at 3:29 PM, Madko madk...@gmail.com wrote: Hi, is there a way to overload the vm_template_contents of only one specific VM in a role? I'd like to fix the hostnames. I only manage to overload the context of all the VMs in one role. best regards, Maybe you can create a new role with the same template, and cardinality 1. Would that work for you? Regards -- Carlos Martín, MSc Project Engineer OpenNebula - Flexible Enterprise Cloud Made Simple www.OpenNebula.org http://www.opennebula.org/ | cmar...@opennebula.org | @OpenNebula http://twitter.com/opennebula cmar...@opennebula.org ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
Re: [one-users] how to overload context for one specific vm in oneflow template
Sorry I don't think it fit our use case. We'd like to have 4 VMs 1 VM with role LVS, no problem here, using a lvs VM template 3 VM with role WEB, using a web VM template. I need to set explicitly their hostnames, no digit allowed (let's say obfuscated-vm-name-a, obfuscated-vm-name-b and obfuscated-vm-name-ab) how do I set each hostname in the service template? Le Fri Jan 23 2015 at 12:11:07, Carlos Martín Sánchez cmar...@opennebula.org a écrit : Hi there, On Thu, Jan 22, 2015 at 2:18 PM, Madko madk...@gmail.com wrote: How do you set hostname to VMs inside roles when you can't use numeric hostname (ie hostname%i)? You can use the VM ID inside the context, the following works for me: CONTEXT = [ HOSTNAME = TEST_$VMID ] Or the VM name. This VM name can be changed the vm_name_template option in oneflow-server.conf [1]. CONTEXT = [ HOSTNAME = $NAME ] Does it fit your use case? Regards [1] http://docs.opennebula.org/4.10/advanced_administration/application_flow_and_auto-scaling/appflow_configure.html -- Carlos Martín, MSc Project Engineer OpenNebula - Flexible Enterprise Cloud Made Simple www.OpenNebula.org | cmar...@opennebula.org | @OpenNebula http://twitter.com/opennebula cmar...@opennebula.org On Thu, Jan 22, 2015 at 2:18 PM, Madko madk...@gmail.com wrote: That's what we were doing untill now, service template with 10 or more VM and therefor 10 or more roles (1:1 ratio) are not really convenient. But thanks for your suggestion. Maybe I'm missing something. Is it possible to change vm_template_contents to some sort of array? How do you set hostname to VMs inside roles when you can't use numeric hostname (ie hostname%i)? best regards Le Thu Jan 22 2015 at 11:25:29, Carlos Martín Sánchez cmar...@opennebula.org a écrit : Hi, On Wed, Jan 21, 2015 at 3:29 PM, Madko madk...@gmail.com wrote: Hi, is there a way to overload the vm_template_contents of only one specific VM in a role? I'd like to fix the hostnames. I only manage to overload the context of all the VMs in one role. best regards, Maybe you can create a new role with the same template, and cardinality 1. Would that work for you? Regards -- Carlos Martín, MSc Project Engineer OpenNebula - Flexible Enterprise Cloud Made Simple www.OpenNebula.org http://www.opennebula.org/ | cmar...@opennebula.org | @OpenNebula http://twitter.com/opennebula cmar...@opennebula.org ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
Re: [one-users] how to overload context for one specific vm in oneflow template
Hi there, On Thu, Jan 22, 2015 at 2:18 PM, Madko madk...@gmail.com wrote: How do you set hostname to VMs inside roles when you can't use numeric hostname (ie hostname%i)? You can use the VM ID inside the context, the following works for me: CONTEXT = [ HOSTNAME = TEST_$VMID ] Or the VM name. This VM name can be changed the vm_name_template option in oneflow-server.conf [1]. CONTEXT = [ HOSTNAME = $NAME ] Does it fit your use case? Regards [1] http://docs.opennebula.org/4.10/advanced_administration/application_flow_and_auto-scaling/appflow_configure.html -- Carlos Martín, MSc Project Engineer OpenNebula - Flexible Enterprise Cloud Made Simple www.OpenNebula.org | cmar...@opennebula.org | @OpenNebula http://twitter.com/opennebula cmar...@opennebula.org On Thu, Jan 22, 2015 at 2:18 PM, Madko madk...@gmail.com wrote: That's what we were doing untill now, service template with 10 or more VM and therefor 10 or more roles (1:1 ratio) are not really convenient. But thanks for your suggestion. Maybe I'm missing something. Is it possible to change vm_template_contents to some sort of array? How do you set hostname to VMs inside roles when you can't use numeric hostname (ie hostname%i)? best regards Le Thu Jan 22 2015 at 11:25:29, Carlos Martín Sánchez cmar...@opennebula.org a écrit : Hi, On Wed, Jan 21, 2015 at 3:29 PM, Madko madk...@gmail.com wrote: Hi, is there a way to overload the vm_template_contents of only one specific VM in a role? I'd like to fix the hostnames. I only manage to overload the context of all the VMs in one role. best regards, Maybe you can create a new role with the same template, and cardinality 1. Would that work for you? Regards -- Carlos Martín, MSc Project Engineer OpenNebula - Flexible Enterprise Cloud Made Simple www.OpenNebula.org http://www.opennebula.org/ | cmar...@opennebula.org | @OpenNebula http://twitter.com/opennebula cmar...@opennebula.org ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
Re: [one-users] how to overload context for one specific vm in oneflow template
Hi, On Wed, Jan 21, 2015 at 3:29 PM, Madko madk...@gmail.com wrote: Hi, is there a way to overload the vm_template_contents of only one specific VM in a role? I'd like to fix the hostnames. I only manage to overload the context of all the VMs in one role. best regards, Maybe you can create a new role with the same template, and cardinality 1. Would that work for you? Regards -- Carlos Martín, MSc Project Engineer OpenNebula - Flexible Enterprise Cloud Made Simple www.OpenNebula.org http://www.opennebula.org/ | cmar...@opennebula.org | @OpenNebula http://twitter.com/opennebula cmar...@opennebula.org ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
Re: [one-users] how to overload context for one specific vm in oneflow template
That's what we were doing untill now, service template with 10 or more VM and therefor 10 or more roles (1:1 ratio) are not really convenient. But thanks for your suggestion. Maybe I'm missing something. Is it possible to change vm_template_contents to some sort of array? How do you set hostname to VMs inside roles when you can't use numeric hostname (ie hostname%i)? best regards Le Thu Jan 22 2015 at 11:25:29, Carlos Martín Sánchez cmar...@opennebula.org a écrit : Hi, On Wed, Jan 21, 2015 at 3:29 PM, Madko madk...@gmail.com wrote: Hi, is there a way to overload the vm_template_contents of only one specific VM in a role? I'd like to fix the hostnames. I only manage to overload the context of all the VMs in one role. best regards, Maybe you can create a new role with the same template, and cardinality 1. Would that work for you? Regards -- Carlos Martín, MSc Project Engineer OpenNebula - Flexible Enterprise Cloud Made Simple www.OpenNebula.org http://www.opennebula.org/ | cmar...@opennebula.org | @OpenNebula http://twitter.com/opennebula cmar...@opennebula.org ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
