Pre-installed nodes for fast turnaround

Registered by Julian Edwards on 2013-10-09

The new Curtin installer is much quicker that d-i but still takes a couple of minutes. Do we need to devise a pre-installation scheme so nodes can be accessed almost instantly?

Blueprint information

Status:
Not started
Approver:
Daniel Westervelt
Priority:
Undefined
Drafter:
None
Direction:
Needs approval
Assignee:
None
Definition:
New
Series goal:
None
Implementation:
Informational Informational
Milestone target:
None

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MAAS Pre-installed nodes for fast turnaround
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Use case
 - bursty loads
 - short-lived loads
 - low latency to deploy

Existing problems
 - slow servers
 - slow to get to BIOS screen (30s - 1m)
 - slow to install

Proposed solution
--------------------------
 - A node would be at a state where the installer has run but cloud-init has not and would allow MAAS to initiate cloud-init separately.

Problems
--------------
 - Still have to re-install machine once it's done with, so latency always exists somewhere
 - Have to maintain a pool of pre-installed nodes whose installed OS has to be pre-determined
 - requires largely homogenous environments or pre-installed nodes won't match deployment requirements
 - hotel coffee is like particularly weak mud

(?)

Work Items

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