The thing is - it didn't get remapped. Now I have two containers mapping
to the same range, both live:
pshemk@ii:~$ lxc list
+---------+---------+---------------------+------+------------+-----------+
| NAME | STATE | IPV4 | IPV6 | TYPE | SNAPSHOTS |
+---------+---------+---------------------+------+------------+-----------+
| backend | RUNNING | 10.221.22.92 (eth0) | | PERSISTENT | 0 |
+---------+---------+---------------------+------+------------+-----------+
| putils | RUNNING | 10.221.22.91 (eth0) | | PERSISTENT | 1 |
+---------+---------+---------------------+------+------------+-----------+
pshemk@ii:~$ lxc config show putils
architecture: x86_64
config:
volatile.base_image:
8fa08537ae51c880966626561987153e72d073cbe19dfe5abc062713d929254d
volatile.eth0.hwaddr: 00:16:3e:e3:20:21
volatile.idmap.base: "0"
volatile.idmap.next:
'[{"Isuid":true,"Isgid":false,"Hostid":100000,"Nsid":0,"Maprange":65536},{"Isuid":false,"Isgid":true,"Hostid":100000,"Nsid":0,"Maprange":65536}]'
volatile.last_state.idmap:
'[{"Isuid":true,"Isgid":false,"Hostid":100000,"Nsid":0,"Maprange":65536},{"Isuid":false,"Isgid":true,"Hostid":100000,"Nsid":0,"Maprange":65536}]'
volatile.last_state.power: RUNNING
devices:
root:
path: /
type: disk
ephemeral: false
profiles:
- default
stateful: false
pshemk@ii:~$ lxc config show backend
architecture: x86_64
config:
volatile.base_image:
7a7ff654cbd8f5f09bec03aa19d8d7d92649127d18659036a963b1ea63f90d25
volatile.eth0.hwaddr: 00:16:3e:ec:03:84
volatile.idmap.base: "0"
volatile.idmap.next:
'[{"Isuid":true,"Isgid":false,"Hostid":100000,"Nsid":0,"Maprange":65536},{"Isuid":false,"Isgid":true,"Hostid":100000,"Nsid":0,"Maprange":65536}]'
volatile.last_state.idmap:
'[{"Isuid":true,"Isgid":false,"Hostid":100000,"Nsid":0,"Maprange":65536},{"Isuid":false,"Isgid":true,"Hostid":100000,"Nsid":0,"Maprange":65536}]'
volatile.last_state.power: RUNNING
devices:
root:
path: /
type: disk
ephemeral: false
profiles:
- default
stateful: false
both have the same hostid, and get mapped to the same range.
Should the files on the file system belong to the same uid:gid for 2
different containers?
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https://bugs.launchpad.net/bugs/1699919
Title:
lxc copy between hosts preserves original uid/gid
Status in lxc package in Ubuntu:
New
Bug description:
I tried to copy an lxc container between two hosts. All worked as
expected, but when I looked at the underlying filesystem I realised
that the container that has been copied onto the new machine retained
its original uid/gid (running unprivileged):
root@ii:/var/lib/lxd/containers# ls -al
total 24
drwx--x--x 1 root root 58 Jun 23 12:01 .
drwxr-xr-x 1 root root 182 Jun 23 12:04 ..
drwxr-xr-x+ 1 100000 100000 56 Jun 23 10:38 backend
-rw-r--r-- 1 root root 4446 Jun 23 12:04 lxc-monitord.log
drwxr-xr-x+ 1 100000 100000 56 Jun 23 12:01 putils
(putils has been copied from a different host).
I'd expect a new uid/gid to be allocated for the copied host.
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