User Data Tags Reference

This page lists OUTSCALE tags that you can use to manage the behavior of your Cloud resources according to your hardware or network needs.

You can apply these tags in the metadata of your virtual machines (VMs), or using the classic method. For more information, see Configuring a VM with User Data and OUTSCALE Tags or Adding or Removing Tags.

Tags are available for the following needs:

VMs Placement

Tag Name Description Tag Value Application

osc.fcu.repulse_server

Places VMs with the same tag value on different servers

Free

  • At VM launch

  • After a stop/start of the VM

osc.fcu.attract_server

Places VMs with the same tag value on the same server

osc.fcu.repulse_cluster

Places VMs with the same tag value on different Cisco UCS clusters

osc.fcu.attract_cluster

Places VMs with the same tag value on the same Cisco UCS cluster

These tags can be used in strict mode, which means that if the requested placement options are not possible, an InsufficientCapacity error is returned. If you do not use strict mode, the requested placement options are bypassed if they are not possible.

To define strict mode, add _strict to the tag name (for example, osc.fcu.repulse_server_strict).

Association of IPs to VMs

Tag Name Description Tag Value Application

osc.fcu.eip.auto-attach

Automatically associates a public IP with a VM, and keeps them associated through the stop and start process

The public IP you want to associate.

For more information, see About Public IPs > Public IP Association.

  • At VM launch

  • After a stop/start of the VM

private_only

Blocks attribution of a public IP to a VM in the public Cloud

true or false

Firewall Bypass

Firewall bypass consists in disabling security groups in order to reduce overall latency between VMs. For more information, see About Nets > Subnet Routing and Security.

Use Case Tag Name to Put on the Net Tag Name to Put on the Instances Effect

Instances in a Net

osc.fcu.disable_lan_security_groups

n/a

Security groups are disabled between VMs of the same Subnets.

This is the default behavior if no tag is applied.

osc.fcu.enable_lan_security_groups

n/a

Security groups are enabled between VMs of the same Subnets.

Instances in the Public Cloud

/

osc.fcu.enable_lan_security_groups

Security groups are enabled between the VMs.

This is the default behavior if no tag is applied.

osc.fcu.disable_lan_security_groups

Security groups are disabled between the VMs if they have the same tag and tag value.

  • Tags on a Net must be applied after creating the Net, but before creating any Subnet in it. Once you have created a Subnet in the Net, the tags cannot modify the behavior any longer.

  • Tags on VMs must be applied at VM creation, or must be followed by a stop/start on the VMs.

  • The tag values can be any value, except for osc.fcu.disable_lan_security_groups in the public Cloud, where it must be at least one character long.

Use of Both OUTSCALE Tags and Free Section

Tag Name Description Tag Value Application

filter_private_section

Filters the OUTSCALE tags of the VM so that you can use both a section of OUTSCALE tags and a free section of user data in the same VM.

If true, all your OUTSCALE tags take effect, but they are not visible when reading the user data of the VM.

If false or not defined, you cannot use both a section of OUTSCALE tags and a free section of user data.

true or false

  • At VM launch

  • After a stop/start of the VM

This tag is available for the OUTSCALE API only. It is not compatible with the FCU API.

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