April 2022 - Podman - Podman List Archives

shouldn't the current directory be the default context for "podman build"?
by Robert P. J. Day 13 Dec '24

13 Dec '24

"man podman-build" suggests that the context argument is optional: SYNOPSIS podman build [options] [context] podman image build [options] [context] ... If no context directory is specified, then Podman will assume the current working directory as the build context, which should contain the Containerfile. but if i have a directory with nothing but a Containerfile, i get: $ podman build Error: no context directory specified, and no containerfile specified $ OTOH, specifying context of current directory: $ podman build . STEP 1: FROM alpine:latest ... etc etc ... thoughts? rday

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mqueue msg_max in rootless container
by Michael Ivanov 27 Nov '23

27 Nov '23

Hallo! I'm trying to run my application in podman rootless container and I stumble on following problem: my program needs /proc/sys/fs/mqueue/msg_max to be at least 256, but in running container this value is just 10. When I try to specify this parameter while running the image (--sysctl 'fs.mqueue.msg_max=256') I get the following error: Error: open /proc/sys/fs/mqueue/msg_max: Permission denied: OCI permission denied and container is not created. My host where container is being run has this parameter set to 256. How can I expose current host setting for msg_max to my container? Best regards, -- \ / | | (OvO) | Михаил Иванов | (^^^) | | \^/ | E-mail: ivans(a)isle.spb.ru | ^ ^ | |

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podman container storage backup
by Michael Ivanov 20 Oct '22

20 Oct '22

Greetings, I make periodic backups of my laptop where I use some podman containers. To perform a backup I just invoke rsync to copy my /home/xxxx/.local/share/containers directory to nfs mounted filesystem. Containers are running, but quiescent, no real activity occurs. Is this a correct way to back up or is there anything special about container directory to be taken into account? As far as I understand some hash-named subdirectories are shared between different containers and images using special kind of mounts, can this lead to duplicate copies r inconsistencies? Underlying fs is btrfs. Thanks, -- \ / | | (OvO) | Михаил Иванов | (^^^) | | \^/ | E-mail: ivans(a)isle.spb.ru | ^ ^ | |

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cgroups not configured for container
by ugiwgh＠qq.com 23 Jun '22

23 Jun '22

There is somthing warning, when I add "--pid=host". How can I get this warning gone? OS: 8.3.2011 Podman: 2.2.1 [rsync@rsyncdk2 ~]$ podman run --rm --pid=host fb7ad16314ee sleep 3 WARN[0000] cannot toggle freezer: cgroups not configured for container WARN[0000] lstat : no such file or directory

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Run container in cluster
by ugiwgh＠qq.com 28 Apr '22

28 Apr '22

I have 2 node in cluster, node1 and node2. They share the same HOME directory with lustre. If I run a container on node1, it will take some record in ~/.local/share/containers/storage/overlay-containers. And run in /run/user/1000/containers. But on node2 there is not /run/user/1000/containers. Because of share HOME directory, there is ~/.local/share/containers/storage/overlay-containers on node2. So there is some error on node2. How could I redirect ~/.local/share/containers/storage/overlay-containers to the local directory on node1 and node2?

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ownership of a mounted home directry
by R C 27 Apr '22

27 Apr '22

Hello, I built a container that mounts the /home directy (it has one unprivileged user). (I used buildah and podman on that unprivileged account, using rhel8) However when I connect to the container, I see that the unprivileged user's home directory is owned by root. any idea why that would be, I am probably missing something thanks, Ron

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Podman Community Cabal Meeting - Thurs April 21, 2022 at 11:00 a.m. EDT (UTC-5)
by Tom Sweeney 20 Apr '22

20 Apr '22

Hey All! 39 hours from now, on Thu April 21, 2022 at 11:00 am EDT (UTC-5), we'll be holding the next Podman Cabal meeting. At the moment only one topic on Contribution policies in GitHub. Happy to take more topics! Agenda with video link here: https://hackmd.io/gQCfskDuRLm7iOsWgH2yrg?bothHope to see you there! t

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podman on oracle linux 8 fails to start container
by Barry Scott 13 Apr '22

13 Apr '22

The OS is oracle linux 8 with podman-3.4.2-9.0.1.module+el8.5.0+20494+0311868c.x86_64 kernel-4.18.0-348.20.1.el8_5.x86_64 I start a container in a systemd service using: + /usr/bin/podman start cloud-dice And get this error from podman: Error: unable to start container "76e4a2480bc7f81d3baa802f3d48fffc2e3d252a52f33039d83e339d3f158532": failed to mount shm tmpfs "/var/lib/containers/storage/overlay-containers/76e4a2480bc7f81d3baa802f3d48fffc2e3d252a52f33039d83e339d3f158532/userdata/shm": invalid argument And these messages in dmesg: [82521.621247] tmpfs: Unknown parameter 'context' [82521.643785] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready [82521.648888] IPv6: ADDRCONF(NETDEV_UP): vethc149f6ee: link is not ready [82521.650561] IPv6: ADDRCONF(NETDEV_CHANGE): vethc149f6ee: link becomes ready [82521.651950] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready [82521.654408] cni-podman0: port 1(vethc149f6ee) entered blocking state [82521.655364] cni-podman0: port 1(vethc149f6ee) entered disabled state [82521.656594] device vethc149f6ee entered promiscuous mode [82521.657537] cni-podman0: port 1(vethc149f6ee) entered blocking state [82521.658455] cni-podman0: port 1(vethc149f6ee) entered forwarding state [82521.880289] cni-podman0: port 1(vethc149f6ee) entered disabled state [82521.883696] device vethc149f6ee left promiscuous mode [82521.884435] cni-podman0: port 1(vethc149f6ee) entered disabled state If I rebuild the container then I do not see the tmpfs error and everything works. What do I need to do to fix the "tmpfs: Unknown parameter 'context'" error that I'm assuming is root cause? Barry

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Podman Community Meeting - Tuesday April 5, 2022 - 11:00 a.m. EDT (UTC-5)
by Tom Sweeney 05 Apr '22

05 Apr '22

Hi All! The next Podman Community meeting is happening in just under 24 hours, on Tuesday, Apr 5, 2022, at 11:00 a.m. EDT (UTC-5). The agenda is still a WIP with room for topics. The Agenda with video link here: https://podman.io/community/meeting/agenda/ Hope to see you there! t

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Our project on analysing and contributing to Podman
by Calin Georgescu 01 Apr '22

01 Apr '22

Dear Podman maintainers, We are a group of four computer science Master's students from the Delft University of Technology in the Netherlands following the course IN4315 Software Architecture ( https://se.ewi.tudelft.nl/delftswa/) We chose Podman as the open-source project that we would study, analyse and contribute to. Over the last 8 weeks, we have published our research in 4 essays, which you can find at https://desosa2022.netlify.app/projects/podman/. On this page, you can also find a list of PRs we made. It has been a pleasure to work on the contribution to Podman. We enjoyed and learned a lot from this process and we want to thank you for the guidance and assistance you provided us. We are eager to know what your thoughts are on our research. If you have any thoughts or feedback on our work that you would like to share, we would be excited to hear them. We would also like to inquire if there are any job/internship opportunities available for us in the future. Thank you for your time and consideration. Feel free to reach out to us through email or GitHub for anything you would like to discuss. Kind regards, Krzysztof Baran @kbaran</kbaran> Rover van der Noort @rvandernoort</rvandernoort> Xueyuan Chen @keonchennl Calin Georgescu @gcalin

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