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Issue with scaling up an existing stack in openstack using heat

asked 2014-05-21 23:42:54 -0500

Simna gravatar image

Hi everyone, I was trying to scale up ( Add an extra node ) an existing stack in the openstack using the stack-update command (heat). For this, i created a new template ( .yaml file ). The new template contains - the code of the template with which i created this stack ( which i am trying to scale up ) "+" the code for creating a new node . While i run the command, A new node is getting added to the existing stack. ( Its getting scaled up ) BUT the other nodes which are already present in the stack is getting created again. i do not want that to happen. What i need is to upload the existing stack with a new node without touching the existing nodes in it . Is it possible ? If so, what changes do i need to make ?

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answered 2014-06-03 14:35:38 -0500

zaneb gravatar image

The easiest way to scale up is to use an autoscaling group resource, which handles this for you.

However, doing it manually should still work. In general resources should not be replaced if they haven't changed between the old and new templates. Make sure you're passing the same parameter values to the update as you did when creating the stack.

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Asked: 2014-05-21 23:42:54 -0500

Seen: 142 times

Last updated: Jun 03 '14