11:54 a.m.
I did this already several times. It does not. I also checked ~/.config/containers,
there were only two items there: empty directory podman and registries.conf with
following contents:
## [[registry]]
## prefix = "test"
## location = "docker.test.local"
unqualified-search-registries = [ 'docker.test.local', 'docker.io' ]
To be on the very safe side I repeated the test, I ran podman system reset
and then cleaned up whatever was remaining in ~/.config/containers and
~/.local/share/containers manually. Then I just podman run alpine.
vfs was used again:
island:kit [master]> ls -la ~/.local/share/containers/storage/
итого 48
drwx------ 10 ivans users 4096 янв 25 20:41 ./
drwxr-xr-x 5 ivans users 4096 янв 25 20:41 ../
-rw-r--r-- 1 ivans users 8 янв 25 20:41 defaultNetworkBackend
drwx------ 2 ivans users 4096 янв 25 20:41 libpod/
drwx------ 2 ivans users 4096 янв 25 20:41 mounts/
drwx------ 2 ivans users 4096 янв 25 20:41 networks/
-rw-r--r-- 1 ivans users 64 янв 25 20:41 storage.lock
drwx------ 2 ivans users 4096 янв 25 20:41 tmp/
-rw-r--r-- 1 ivans users 0 янв 25 20:41 userns.lock
drwx------ 3 ivans users 4096 янв 25 20:41 vfs/
drwx------ 3 ivans users 4096 янв 25 20:41 vfs-containers/
drwx------ 3 ivans users 4096 янв 25 20:41 vfs-images/
drwx------ 2 ivans users 4096 янв 25 20:41 vfs-layers/
My system has following fuse-related packages:
island:kit [master]> dpkg -l | grep fuse
ii fuse-overlayfs 1.9-1 amd64 implementation of overlay+shiftfs in FUSE for
rootless containers
ii fuse3 3.13.0-2 amd64 Filesystem in Userspace (3.x version)
ii libfuse2:amd64 2.9.9-6 amd64 Filesystem in Userspace (library)
ii libfuse3-3:amd64 3.13.0-2 amd64 Filesystem in Userspace (library) (3.x version)
Rgrds,
On 25.01.2023 17:55, Daniel Walsh wrote:
Is there any config files in ~/.config/containers?
podman system reset
Should remove everything, and from then on Podman should use rootless
overlay.
On 1/25/23 09:52, Михаил Иванов wrote:
> Is native overlay available in rootless mode?
> When I run podman as root there's no problem, overlayfs is picked up
> as default in debian. VFS is selected as default only in rootless mode.
> Rgrds,
> On 25.01.2023 14:03, Giuseppe Scrivano wrote:
>> Reinhard Tartler<siretart(a)gmail.com> writes:
>>
>>> On Tue, Jan 24, 2023 at 2:08 PM Daniel Walsh<dwalsh(a)redhat.com>
wrote:
>>>
>>> On 1/24/23 03:47, Reinhard Tartler wrote:
>>>
>>> Dan,
>>>
>>> In Debian, I've chosen to just go with the upstream defaults:
>>>
https://github.com/containers/storage/blob/8428fad6d0d3c4cded8fd7702af36a...
>>>
>>> This file is installed verbatim to /usr/share/containers/storage.conf.
>>>
>>> Is there a better choice? Does Fedora/Redhat provide a default storage.conf
from somewhere else?
>>>
>>> Thanks,
>>> -rt
>>>
>>> That should be fine. Fedora goes with that default as well. Does debian
support rootless overlay by default?
>>>
>>> If not then it would fail over to VFS if fuse-overlayfs is not installed.
>>>
>>> I'm a bit confused about what you mean with that.
>>>
>>> In Debian releases that ship podman 4.x we have at least Linux kernel 6.0.
The fuse-overlayfs package is installed by default, but users may opt to not
>>> install it by configuring apt to not install "Recommends" by
default.
>>>
>>> What else is required for rootless overlay?
>>>
>>> Also, if I follow this conversation, then it appears that the default
storage.conf requires modification in line 118 (to uncomment the mount_program
>>> option) in order to actually use fuse-overlayfs. I would have expected podman
to use fuse-overlayfs if it happens to be installed, and fallback to direct
>>> mount if not. I read Michail's email thread that this appears to be not
the case and he had to spend a lot of effort figuring out how to install an
>>> appropriate configuration file. Maybe I'm missing something, but I wonder
what we can do to improve the user experience?
>> what issue do you see if you use native overlay?
>>
>> Podman prefers native overlay if it is available, since it is faster.
>> If not, it tries fuse-overlays and if it is not available, it falls back
>> to vfs.
>>
>> Could you try from a fresh storage though? If fuse-overlayfs was
>> already used, then Podman will continue using it even if native overlay
>> is available, since the storage metadata is slightly different.
>>
>> Thanks,
>> Giuseppe
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