Public bug reported:
LP: #1885527 raised (not for the first time) a general failure of cloud-init's
documentation to cover 'manual_cache_clean'. In fact, this configuration
value not referenced at all in readthedocs, but only in
doc/examples/cloud-config.txt
https://github.com/canonical/cloud-init/blob/b70aec8e5ed59298e9fbd5da449350dd3d0002d2/doc/examples/cloud-config.txt#L467
The intent (testing is needed) for manual_cache_clean is:
a.) user-data and system config (/etc/cloud/*.cfg) can set
manual_cache_clean to true or false. As always user-data overrides system
config. vendor-data should also be able to provide the setting.
b.) cloud-init renders /var/lib/cloud/instance/manual-clean
(path_helper.get_ipath_cur("manual_clean_marker")) if
c.) on boot, both ds-identify and cloud-init will check
and respect existance of /var/lib/cloud/instance/manual-clean .
If that file is present, then cloud-init will not make any
attempts to re-discover a metadata service.
So... "unfreeze", if manual_cache_clean was set is just:
rm -Rf /var/lib/cloud/instance /var/lib/cloud/instance/
I think it would be good to both test that my intent/understanding are
correct, and document it. Also useful might be documenting use case
that makes this necessary which is described in:
https://bugs.launchpad.net/ubuntu/+source/cloud-init/+bug/1885527/comments/6
Related bugs:
* bug 1885527: cloud-init regenerating ssh-keys
* bug 1712680: cloud-init re-generates network config every reboot
** Affects: cloud-init (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1888858
Title:
document manual_cache_clean better
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