I want to map multiple UIDs/GIDs in my container (named 'wiki'),
specifically my userid (1000) and apache (48).
I found this:
https://superuser.com/questions/1174344/syntax-for-setting-lxd-container-raw-idmap
I ran
$ echo -e "both 1000 1000\nboth 48 48" | lxc config set wiki raw.idmap -
The config looks like this:
raw.idmap: |
both 1000 1000
both 48 48
The container does not start. lxc monitor shows this error:
/var/log/lxd/wiki/lxc.log contains this:
lxc wiki 20200403165802.697 ERROR start -
start.c:proc_pidfd_open:1644 - Function not implemented - Failed to send
signal through pidfd
lxc wiki 20200403165802.700 ERROR conf - conf.c:lxc_map_ids:3009 -
newuidmap failed to write mapping "newuidmap: uid range [48-49) ->
[48-49) not allowed": newuidmap 27611 0 100000 48 48 48 1 49 100049 951
1000 1000 1 1001 101001 64535
lxc wiki 20200403165802.700 ERROR start - start.c:lxc_spawn:1798 -
Failed to set up id mapping.
I'm guessing that remapping UID/GID 48 is not permitted in a
non-privileged container.
Is there a better way to do this?
--
Michael Eager
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