Does a Cloud-Init file for an LXD container have a maximum size limit?


(Brian Mullan) #1

Cloud Init can do quite complex things if you configure it so.

For a Host/Server being installed on an actual IaaS “Cloud”, the cloud-init file may be limited in maximum “size”.

However, does that still apply to the LXD container use-case as the referenced comment [1] below suggests it may only apply to Host/Servers on an IaaS Cloud not containers.

I guess experimenting with a larger Cloud Init file would tell us if LXD has a problem with say a 32,000 byte (or larger) Cloud Init but I thought I’d ask first:

https://cloudinit.readthedocs.io/en/latest/topics/format.html

Content found to be gzip compressed will be uncompressed. The uncompressed data will then be used as if it were not compressed. This is typically useful because user-data is limited to ~16384 [1] bytes.

[1] See your cloud provider for applicable user-data size limitations…


(Stéphane Graber) #2

No, there is no size limit on user-data in LXD.