What's the meaning of `re-deploy` in the bifrost?

asked 2019-09-19 05:26:13 -0500

liaodalin19903 gravatar image

When I read this documentbifrost:

If the hosts need to be re-deployed, the dynamic redeploy playbook may be used:

export BIFROST_INVENTORY_SOURCE=/tmp/baremetal.json
ansible-playbook -vvvv -i inventory/bifrost_inventory.py redeploy-dynamic.yaml

This playbook will undeploy the hosts, followed by a deployment, allowing a configurable timeout for the hosts to transition in each step.

I have a doubt about the re-deploy, what's this meaning?

Is it mean in the deploying process, if the administrator change the mind, he want to deploy with other operating system, then use the other OS to re-delploy?

Or is it mean after the deploy complete, there want to deploy with other OS then re-deploy?

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answered 2019-09-20 00:26:58 -0500

In Ironic terminology, "deploy" means creating an instance on a baremetal node. To use the node for another instance, it has to be undeployed (i.e. old instance is removed), then deployed once more.

I am not sure if you can interrupt the deployment process, but the last paragraph in your question is definitely correct.

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In there, the node means the baremetal installed some configuration for install OS, right? and why there must To use the node for another instance, it has to be undeployed (i.e. old instance is removed), then deployed ?once more.

liaodalin19903 gravatar imageliaodalin19903 ( 2019-09-20 04:37:15 -0500 )edit

"node" is the baremetal node, correct. You don't install "some configuration" on it, you copy a full system image to it.

The node has to be undeployed because it is being used for an instance. You can't just put a new system on it without removing the previous system.

Bernd Bausch gravatar imageBernd Bausch ( 2019-09-20 05:02:14 -0500 )edit

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Asked: 2019-09-19 05:26:13 -0500

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Last updated: Sep 20 '19