9:52 a.m.
Hi all,
I got a bit on an issue trying to spin up a container with a volume mounted
to the container's /data directory. Got a related issue here but I believe
I'm just missing out on something Podman specific
https://github.com/dani-garcia/bitwarden_rs/issues/506
When I run this command and mount /bw-data to container's /data the
bitwardenrs image can't write to it.
podman run -d --user 1001 --name bitwarden -e
[ROCKET_PORT=8080,ENABLE_DB_WAL=false] -v
/home/spytec/Bitwarden/bw-data/:/data/ -p 8080:8080
bitwardenrs/server:latest
Inside the container the /data directory is assigned to root, outside the
container /bw-data has 0777 permissions and belong to myself (user 1001).
Am I missing something?
Thanks,
Eric Gustavsson
Associate Software Engineer
Red Hat <https://www.redhat.com>
<https://www.redhat.com>
10 a.m.
Hi Eric,
that happens because you are running in a user namespace. The root
inside of the container is mapped by the kernel to your user id on the
host.
We recently added to podman a new option "--userns keep-id" that does
probably what you are looking for. The same ID inside of the user
namespace is mapped to your UID/GID on the host. Please also drop the
--user from the command if you are using this option.
If you are fine with having ID 0, even though it is not the real root,
an unprivileged user cannot get more privileges than it had originally,
I'd suggest to run your same command without `--user 1001`.
Regards,
Giuseppe
Eric Gustavsson <egustavs(a)redhat.com> writes:
> Hi all,
>
> I got a bit on an issue trying to spin up a container with a volume mounted to the
container's /data directory. Got a related issue here but I believe I'm just
missing out on something Podman specific
> https://github.com/dani-garcia/bitwarden_rs/issues/506
>
> When I run this command and mount /bw-data to container's /data the bitwardenrs
image can't write to it.
> podman run -d --user 1001 --name bitwarden -e [ROCKET_PORT=8080,ENABLE_DB_WAL=false]
-v /home/spytec/Bitwarden/bw-data/:/data/ -p 8080:8080 bitwardenrs/server:latest
>
> Inside the container the /data directory is assigned to root, outside the container
/bw-data has 0777 permissions and belong to myself (user 1001).
>
> Am I missing something?
>
> Thanks,
>
> Eric Gustavsson
>
> Associate Software Engineer
>
> Red Hat
>
> *
> *
>
> _______________________________________________
> Podman mailing list -- podman(a)lists.podman.io
> To unsubscribe send an email to podman-leave(a)lists.podman.io
>
10:03 a.m.
On Mon, Jun 17, 2019, at 9:53 AM, Eric Gustavsson wrote:
Hi all,
I got a bit on an issue trying to spin up a container with a volume
mounted to the container's /data directory. Got a related issue here
but I believe I'm just missing out on something Podman specific
https://github.com/dani-garcia/bitwarden_rs/issues/506
When I run this command and mount /bw-data to container's /data the
bitwardenrs image can't write to it.
podman run -d --user 1001 --name bitwarden -e
[ROCKET_PORT=8080,ENABLE_DB_WAL=false] -v
/home/spytec/Bitwarden/bw-data/:/data/ -p 8080:8080
bitwardenrs/server:latest
Inside the container the /data directory is assigned to root, outside
the container /bw-data has 0777 permissions and belong to myself (user
1001).
Am I missing something?
With rootless containers, the root uid inside the container is the regular uid outside of
the container. Use `--userns=keep-uid` to see your user mapped as the same uid inside and
out.
V/r,
James Cassell
10:22 a.m.
Thanks for the quick responses!
I tried running without --user, got the same error with permission denied
to touch the data/ directory
$ podman run -d --name bitwarden -e ROCKET_PORT=8080 -v
/home/spytec/Bitwarden/bw-data/:/data/ -p 8080:8080
bitwardenrs/server:latest
With the --userns=keep-id I do get the 1000:1000 on the folder and the
container runs as it, but also there I get permission denied.
$ podman run -d --userns=keep-id --name bitwarden -e ROCKET_PORT=8080 -v
/home/spytec/Bitwarden/bw-data/:/data/ -p 8080:8080
bitwardenrs/server:latest
If I tried this to see it inside the container:
$ podman run -ti --name bitwarden --rm --userns=keep-id -e
[ROCKET_PORT=8080,ENABLE_DB_WAL=false] -v
/home/spytec/Bitwarden/bw-data/:/data/ -p 8080:8080
bitwardenrs/server:latest /bin/bash
1000@7253b86a0681:/$ touch /data/test
touch: cannot touch '/data/test': Permission denied
1000@7253b86a0681:/$ ls -l | grep data
drwxrwxrwx. 2 1000 1000 4096 Jun 13 16:57 data
Thanks,
Eric Gustavsson
Associate Software Engineer
Red Hat <https://www.redhat.com>
<https://www.redhat.com>
On Mon, 17 Jun 2019 at 16:12, James Cassell <fedoraproject(a)cyberpear.com>
wrote:
On Mon, Jun 17, 2019, at 9:53 AM, Eric Gustavsson wrote:
> Hi all,
>
> I got a bit on an issue trying to spin up a container with a volume
> mounted to the container's /data directory. Got a related issue here
> but I believe I'm just missing out on something Podman specific
> https://github.com/dani-garcia/bitwarden_rs/issues/506
>
> When I run this command and mount /bw-data to container's /data the
> bitwardenrs image can't write to it.
> podman run -d --user 1001 --name bitwarden -e
> [ROCKET_PORT=8080,ENABLE_DB_WAL=false] -v
> /home/spytec/Bitwarden/bw-data/:/data/ -p 8080:8080
> bitwardenrs/server:latest
>
> Inside the container the /data directory is assigned to root, outside
> the container /bw-data has 0777 permissions and belong to myself (user
> 1001).
>
> Am I missing something?
With rootless containers, the root uid inside the container is the regular
uid outside of the container. Use `--userns=keep-uid` to see your user
mapped as the same uid inside and out.
V/r,
James Cassell
_______________________________________________
Podman mailing list -- podman(a)lists.podman.io
To unsubscribe send an email to podman-leave(a)lists.podman.io
10:25 a.m.
On 2019-06-17 16:22, Eric Gustavsson wrote:
Thanks for the quick responses!
I tried running without --user, got the same error with permission denied
to touch the data/ directory
$ podman run -d --name bitwarden -e ROCKET_PORT=8080 -v
/home/spytec/Bitwarden/bw-data/:/data/ -p 8080:8080
bitwardenrs/server:latest
With the --userns=keep-id I do get the 1000:1000 on the folder and the
container runs as it, but also there I get permission denied.
$ podman run -d --userns=keep-id --name bitwarden -e ROCKET_PORT=8080 -v
/home/spytec/Bitwarden/bw-data/:/data/ -p 8080:8080
bitwardenrs/server:latest
If I tried this to see it inside the container:
$ podman run -ti --name bitwarden --rm --userns=keep-id -e
[ROCKET_PORT=8080,ENABLE_DB_WAL=false] -v
/home/spytec/Bitwarden/bw-data/:/data/ -p 8080:8080
bitwardenrs/server:latest /bin/bash
1000@7253b86a0681:/$ touch /data/test
touch: cannot touch '/data/test': Permission denied
1000@7253b86a0681:/$ ls -l | grep data
drwxrwxrwx. 2 1000 1000 4096 Jun 13 16:57 data
Thanks,
Eric Gustavsson
Associate Software Engineer
Red Hat <https://www.redhat.com>
<https://www.redhat.com>
Sounds like SELinux.
Try running the container with `--security-opt label=disable` - that
should let you access the folder on the host without issue.
Thanks,
Matt Heon
On Mon, 17 Jun 2019 at 16:12, James Cassell <fedoraproject(a)cyberpear.com>
wrote:
> On Mon, Jun 17, 2019, at 9:53 AM, Eric Gustavsson wrote:
> > Hi all,
> >
> > I got a bit on an issue trying to spin up a container with a volume
> > mounted to the container's /data directory. Got a related issue here
> > but I believe I'm just missing out on something Podman specific
> > https://github.com/dani-garcia/bitwarden_rs/issues/506
> >
> > When I run this command and mount /bw-data to container's /data the
> > bitwardenrs image can't write to it.
> > podman run -d --user 1001 --name bitwarden -e
> > [ROCKET_PORT=8080,ENABLE_DB_WAL=false] -v
> > /home/spytec/Bitwarden/bw-data/:/data/ -p 8080:8080
> > bitwardenrs/server:latest
> >
> > Inside the container the /data directory is assigned to root, outside
> > the container /bw-data has 0777 permissions and belong to myself (user
> > 1001).
> >
> > Am I missing something?
>
> With rootless containers, the root uid inside the container is the regular
> uid outside of the container. Use `--userns=keep-uid` to see your user
> mapped as the same uid inside and out.
>
> V/r,
> James Cassell
> _______________________________________________
> Podman mailing list -- podman(a)lists.podman.io
> To unsubscribe send an email to podman-leave(a)lists.podman.io
>
_______________________________________________
Podman mailing list -- podman(a)lists.podman.io
To unsubscribe send an email to podman-leave(a)lists.podman.io
10:33 a.m.
Thanks Matt, that was it! It spins up now
What's the recommended way of doing this with SELinux enabled in the
container?
Since the alpine image doesn't seem create a home directory for the user.
On Mon, 17 Jun 2019 at 16:25, Matt Heon <mheon(a)redhat.com> wrote:
On 2019-06-17 16:22, Eric Gustavsson wrote:
>Thanks for the quick responses!
>
>I tried running without --user, got the same error with permission denied
>to touch the data/ directory
>$ podman run -d --name bitwarden -e ROCKET_PORT=8080 -v
>/home/spytec/Bitwarden/bw-data/:/data/ -p 8080:8080
>bitwardenrs/server:latest
>
>With the --userns=keep-id I do get the 1000:1000 on the folder and the
>container runs as it, but also there I get permission denied.
>$ podman run -d --userns=keep-id --name bitwarden -e ROCKET_PORT=8080 -v
>/home/spytec/Bitwarden/bw-data/:/data/ -p 8080:8080
>bitwardenrs/server:latest
>
>If I tried this to see it inside the container:
>$ podman run -ti --name bitwarden --rm --userns=keep-id -e
>[ROCKET_PORT=8080,ENABLE_DB_WAL=false] -v
>/home/spytec/Bitwarden/bw-data/:/data/ -p 8080:8080
>bitwardenrs/server:latest /bin/bash
>1000@7253b86a0681:/$ touch /data/test
>touch: cannot touch '/data/test': Permission denied
>1000@7253b86a0681:/$ ls -l | grep data
>drwxrwxrwx. 2 1000 1000 4096 Jun 13 16:57 data
>
>Thanks,
>
>Eric Gustavsson
>
>Associate Software Engineer
>
>Red Hat <https://www.redhat.com>
><https://www.redhat.com>
>
Sounds like SELinux.
Try running the container with `--security-opt label=disable` - that
should let you access the folder on the host without issue.
Thanks,
Matt Heon
>
>On Mon, 17 Jun 2019 at 16:12, James Cassell <fedoraproject(a)cyberpear.com>
>wrote:
>
>> On Mon, Jun 17, 2019, at 9:53 AM, Eric Gustavsson wrote:
>> > Hi all,
>> >
>> > I got a bit on an issue trying to spin up a container with a volume
>> > mounted to the container's /data directory. Got a related issue here
>> > but I believe I'm just missing out on something Podman specific
>> > https://github.com/dani-garcia/bitwarden_rs/issues/506
>> >
>> > When I run this command and mount /bw-data to container's /data the
>> > bitwardenrs image can't write to it.
>> > podman run -d --user 1001 --name bitwarden -e
>> > [ROCKET_PORT=8080,ENABLE_DB_WAL=false] -v
>> > /home/spytec/Bitwarden/bw-data/:/data/ -p 8080:8080
>> > bitwardenrs/server:latest
>> >
>> > Inside the container the /data directory is assigned to root, outside
>> > the container /bw-data has 0777 permissions and belong to myself (user
>> > 1001).
>> >
>> > Am I missing something?
>>
>> With rootless containers, the root uid inside the container is the
regular
>> uid outside of the container. Use `--userns=keep-uid` to see your user
>> mapped as the same uid inside and out.
>>
>> V/r,
>> James Cassell
>> _______________________________________________
>> Podman mailing list -- podman(a)lists.podman.io
>> To unsubscribe send an email to podman-leave(a)lists.podman.io
>>
>_______________________________________________
>Podman mailing list -- podman(a)lists.podman.io
>To unsubscribe send an email to podman-leave(a)lists.podman.io
11:03 a.m.
On 2019-06-17 16:33, Eric Gustavsson wrote:
Thanks Matt, that was it! It spins up now
What's the recommended way of doing this with SELinux enabled in the
container?
Since the alpine image doesn't seem create a home directory for the user.
Depends on your exact use case.
If you just need the content in the container, not on the host, you
could use a named volume there (`podman volume create` and mount in by
name instead of path).
If you need the content on the host, but you don't mind destructively
relabelling it, append `:Z` to the mount (or `:z` if it needs to be
accessed from multiple containers). This does an SELinux relabel of
the host directory so Podman containers can access it. Not a good
thing to do to your entire homedir, but fine if it's just a directory
you don't anticipate using for much except the Podman container.
If neither of those fit, you're back to `label=disable` - we need to
retain normal SELinux labelling and don't have permissions to access
with the container. Fortunately, as a rootless container, you're
already very locked down, so missing SELinux isn't as big of a deal as
it is with root.
Thanks,
Matt Heon
On Mon, 17 Jun 2019 at 16:25, Matt Heon <mheon(a)redhat.com> wrote:
> On 2019-06-17 16:22, Eric Gustavsson wrote:
> >Thanks for the quick responses!
> >
> >I tried running without --user, got the same error with permission denied
> >to touch the data/ directory
> >$ podman run -d --name bitwarden -e ROCKET_PORT=8080 -v
> >/home/spytec/Bitwarden/bw-data/:/data/ -p 8080:8080
> >bitwardenrs/server:latest
> >
> >With the --userns=keep-id I do get the 1000:1000 on the folder and the
> >container runs as it, but also there I get permission denied.
> >$ podman run -d --userns=keep-id --name bitwarden -e ROCKET_PORT=8080 -v
> >/home/spytec/Bitwarden/bw-data/:/data/ -p 8080:8080
> >bitwardenrs/server:latest
> >
> >If I tried this to see it inside the container:
> >$ podman run -ti --name bitwarden --rm --userns=keep-id -e
> >[ROCKET_PORT=8080,ENABLE_DB_WAL=false] -v
> >/home/spytec/Bitwarden/bw-data/:/data/ -p 8080:8080
> >bitwardenrs/server:latest /bin/bash
> >1000@7253b86a0681:/$ touch /data/test
> >touch: cannot touch '/data/test': Permission denied
> >1000@7253b86a0681:/$ ls -l | grep data
> >drwxrwxrwx. 2 1000 1000 4096 Jun 13 16:57 data
> >
> >Thanks,
> >
> >Eric Gustavsson
> >
> >Associate Software Engineer
> >
> >Red Hat <https://www.redhat.com>
> ><https://www.redhat.com>
> >
>
> Sounds like SELinux.
>
> Try running the container with `--security-opt label=disable` - that
> should let you access the folder on the host without issue.
>
> Thanks,
> Matt Heon
>
> >
> >On Mon, 17 Jun 2019 at 16:12, James Cassell <fedoraproject(a)cyberpear.com>
> >wrote:
> >
> >> On Mon, Jun 17, 2019, at 9:53 AM, Eric Gustavsson wrote:
> >> > Hi all,
> >> >
> >> > I got a bit on an issue trying to spin up a container with a volume
> >> > mounted to the container's /data directory. Got a related issue
here
> >> > but I believe I'm just missing out on something Podman specific
> >> > https://github.com/dani-garcia/bitwarden_rs/issues/506
> >> >
> >> > When I run this command and mount /bw-data to container's /data
the
> >> > bitwardenrs image can't write to it.
> >> > podman run -d --user 1001 --name bitwarden -e
> >> > [ROCKET_PORT=8080,ENABLE_DB_WAL=false] -v
> >> > /home/spytec/Bitwarden/bw-data/:/data/ -p 8080:8080
> >> > bitwardenrs/server:latest
> >> >
> >> > Inside the container the /data directory is assigned to root, outside
> >> > the container /bw-data has 0777 permissions and belong to myself (user
> >> > 1001).
> >> >
> >> > Am I missing something?
> >>
> >> With rootless containers, the root uid inside the container is the
> regular
> >> uid outside of the container. Use `--userns=keep-uid` to see your user
> >> mapped as the same uid inside and out.
> >>
> >> V/r,
> >> James Cassell
> >> _______________________________________________
> >> Podman mailing list -- podman(a)lists.podman.io
> >> To unsubscribe send an email to podman-leave(a)lists.podman.io
> >>
>
> >_______________________________________________
> >Podman mailing list -- podman(a)lists.podman.io
> >To unsubscribe send an email to podman-leave(a)lists.podman.io
>
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6 comments
4 participants
participants (4)
-
Eric Gustavsson -
Giuseppe Scrivano -
James Cassell -
Matt Heon