January 2021 - 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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image signing
by Hendrik Haddorp 30 Mar '21

30 Mar '21

Hi, is OpenPGP the only supported image signing open supported by podman / skopeo or are there other options? Using OpenGPG works quite fine for me so far but in the end we are trying to sign an image using an IBM 4765 crypto card and so far have not figured out how this can play together. thanks, Hendrk

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Build image from Pod Yaml like in docker-compose
by bobtruhla＠seznam.cz 05 Feb '21

05 Feb '21

Hi Everybody, I'm switching from Docker to Podman on my VPS and I'm trying to convert all docker-compose to Pod Yaml. I know that Podman is supposed to use for `podman play kube` only Yaml generated by `podman generate kube` and not user generated Yaml. But it works just fine like for example demonstrated here: https://www.redhat.com/sysadmin/compose-podman-pods I found project `Kompose` and I know that Podman 3.0 is supposed to support actual docker-compose but it's very clear to me that Pod Yaml is the right way to go. The only thing I can't reproduce in Pod Yaml is `build: .` like this: -------------------------- version: '3' services: web: build: . ... db: image: mariadb ... -------------------------- In other words this will not work: -------------------------- apiVersion: v1 kind: Pod metadata: labels: app: my-pod name: my-pod status: {} spec: restartPolicy: Always containers: - name: web build: . ... - name: db image: mariadb ... -------------------------- So the only way is to create `Containerfile`, `podman build .` and then define Yaml like this: -------------------------- apiVersion: v1 kind: Pod metadata: labels: app: my-pod name: my-pod status: {} spec: restartPolicy: Always containers: - name: web image: sha256:307e5ce57d57472b6392f5027e0aa69c1090cd312e3429afdbd950d0d1fbae15 ... - name: db image: mariadb ... -------------------------- Could you please tell me is there a way how to build image from Pod Yaml like you can do with docker-compose? Thank you. Kind regards, Bobes T.

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2.0 → 3.0 migration guide?
by Marcin Zajączkowski 04 Feb '21

04 Feb '21

Hi. I wonder, if there is any migration guide from 2.0 to 3.0 available? I would like to know if there are any "common steps" that should be performed when upgrading Podman (but I couldn't find any and the release notes are quite extensive). I've just upgraded from 2.2.1 to 3.0.0-0.1.rc1.fc33 and only restarted the pod with the Podman new version. It's a simple pod with just one service container exposing two ports, running in the roolless mode. It started correctly, but after while, I've noticed that the ports are not exposed at all. I recreated the pod and the container with the new Podman (mounting the same local/host directory) and it works fine. However, I wonder, if it is needed to recreate pod/container after the 2.x to 3.x migration? I might provide commands used to create the oroginal pod/container, if needed. Marcin -- https://blog.solidsoft.pl/ - Working code is not enough

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multiple secrets for a single registry?
by Pavel Mores 03 Feb '21

03 Feb '21

Hi, is it possible to have podman use multiple secrets for a single registry? Context: I'm trying to run a higher-level operation (to create an OpenShift release image using 'oc adm release new') that seems to invoke podman behind the scenes. Making OCP releases is far from my usual line of work, I'm not familiar with the process and I'm not sure what exactly it does but apparently, it needs authorised access to several repos on quay.io. This might not be the case for making a regular OCP release but I'm overriding one of the OCP components with an image stored under my quay.io account while the rest of the component images come from a default location, apparently also on quay.io. The trouble seem to be that to work with my override my secret is needed while to access default OCP images an OCP secret is needed. Since podman is run here as part of a more complex process rather than just individual manual invocations, I cannot do a auth.json file juggling that I do otherwise. A workaround tested by my coworker seems to be to make an account at a different registry (docker.io) and store the override component image there. I can do this but it seems ugly so I was wondering if there was a better way? Thanks in advance, pvl

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clock_gettime(CLOCK_MONOTONIC, _) failed: Operation not permitted (1)
by Laurent Meunier 02 Feb '21

02 Feb '21

Hi, I've just build an image with buildah, this image seems to work as expected as I can start the application inside the build container. But as soon as I try to run this image with "podman run", I get an "Operation not permitted" error about clock_gettime(CLOCK_MONOTONIC, _). This is the command used to run the image with buildah: $ buildah run $(buildah from ejabberd:armv7-21.01) \ /usr/local/sbin/ejabberdctl foreground < ... the application starts without error> And the command to run the same image with podman: $ podman run -it --rm --entrypoint /usr/local/sbin/ejabberdctl \ ejabberd:armv7-21.01 foreground clock_gettime(CLOCK_MONOTONIC, _) failed: Operation not permitted (1) Aborted I think this is related to the host architecture (armv7 / raspberry pi 3 / raspbian) as I can't reproduce it on amd64. $ buildah --version buildah version 1.19.2 (image-spec 1.0.1-dev, runtime-spec 1.0.2-dev) $ podman --version podman version 2.1.1 I've already build and run a couple of images on this architecture, and never seen this error before. Any idea what I'm doing wrong? Thanks. -- Laurent Meunier <laurent(a)deltalima.net>

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Podman 3.0 on WSL distro like Fedora33 with systemd, i.e. started using Aekane-system genie - 1st impression.
by Pavel Sosin 01 Feb '21

01 Feb '21

1. cgroup manager can be set to systems 2. Podman requires systemd session created for the rootless user. To achieve it distro must be started as wsl -d Fedora33 -u root genie -s. Then user session must be created using wsl -d Fedora33 genie -l

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Podman 3.0 for Fedora 33 WSL
by Pavel Sosin 26 Jan '21

26 Jan '21

I just finished the assembly and smoke test of my underground Fedora 33 WSL distro weaponized with Arkane genie, i.e. systemd. Installed early Podman 2.2.1 is working OK. From which repository I can install Podman 3.0?

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can not run ubi7-init systemd container, fedora systemd container works fine
by Jan Hutař 22 Jan '21

22 Jan '21

Hello! I have issue with running "ubi7-init" based container. When I base mine container on "fedora", it works fine: $ cat Containerfile FROM fedora RUN dnf -y install httpd; dnf clean all; systemctl enable httpd EXPOSE 80 CMD [ "/sbin/init" ] and then: $ sudo podman build -f Containerfile $ sudo podman run -ti -p 80:80 20185593d0f96c4dee56e351eae4754cdd429679c1b645dae1b6f24880ce33fc systemd v246.6-3.fc33 running in system mode. (+PAM +AUDIT +SELINUX +IMA -APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +ZSTD +SECCOMP +BLKID +ELFUTILS +KMOD +IDN2 -IDN +PCRE2 default-hierarchy=unified) [...] [ OK ] Started The Apache HTTP Server. [...] But when I try the same with ubi7-init based container (or rhel7-init): $ cat Containerfile FROM registry.access.redhat.com/ubi7/ubi-init RUN echo -e "[repo1]\nname=repo1\nbaseurl=http://repos.example.com/RHEL-7/7.9/Server/x86_…" >/etc/yum.repos.d/repo1.repo; yum -y install httpd; yum clean all; systemctl enable httpd EXPOSE 80 CMD [ "/sbin/init" ] it fails: $ sudo podman run -ti -p 80:80 d872b16b8d0f9718c60420e3569cb4d5ddd16053fb72903e70d7b62ba3f34964 Failed to mount cgroup at /sys/fs/cgroup/systemd: Operation not permitted [!!!!!!] Failed to mount API filesystems, freezing. And same with privileged: $ sudo podman run -ti -p 80:80 --privileged=true d872b16b8d0f9718c60420e3569cb4d5ddd16053fb72903e70d7b62ba3f34964 Failed to mount cgroup at /sys/fs/cgroup/systemd: Operation not permitted [!!!!!!] Failed to mount API filesystems, freezing. I have these versions: $ rpm -q fedora-release-common podman fedora-release-common-33-3.noarch podman-2.2.1-1.fc33.x86_64 $ sudo podman version Version: 2.2.1 API Version: 2.1.0 Go Version: go1.15.5 Built: Tue Dec 8 15:37:50 2020 OS/Arch: linux/amd64 Please, any idea on what I'm doing wrong? Thank you in advance and happy new year! Regards, Jan -- Jan Hutar Performance Engineering jhutar(a)redhat.com Red Hat, Inc.

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Podman Community Meeting Agenda - Tues February 2, 2021 - 11:00 a.m. Eastern (UTC-5)
by Tom Sweeney 22 Jan '21

22 Jan '21

Hi All, The next Podman Community Meeting is coming up in just under two weeks. We'll be meeting on Tuesday February 2, 2021 at 11:00 a.m. Eastern (UTC-5). The agenda for the meeting has just been posted on the podman.io site (https://podman.io/community/meeting/agenda/) and you'll find links on the agenda to the BlueJeans Video Conference Room that we'll be using. No cost to attend, hope to see a number of you there! t

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