rawhide (crun): rootless(?): podman build: error creating container

[edsantiago]

On current rawhide with crun:

$ cat Dockerfile
FROM alpine
RUN /bin/true
$ podman build --format=docker .
STEP 1: FROM alpine
STEP 2: RUN /bin/true
2019-09-04T16:00:31.000904355Z: sync socket closed
error running container: error creating container for [/bin/sh -c /bin/true]: : exit status 1
Error: error building at STEP "RUN /bin/true": error while running runtime: exit status 1
$ echo $?
125

I can't check root because podman-root is 100% broken (rhbz1748214).

With --log-level=debug:

...
DEBU[0000] Running ["/usr/bin/crun" "create" "--bundle" "/tmp/buildah302112233" "--pid-file" "/tmp/buildah302112233/pid" "--no-new-keyring" "--console-socket" "/tmp/buildah302112233/console.sock" "buildah-buildah302112233"]
2019-09-04T16:02:19.000002978Z: sync socket closed

podman-1.5.2-0.46.dev.git1d8a940.fc32.x86_64
crun-0.7-2.fc31.x86_64
package runc is not installed

[rhatdan]

Buildah has hard coded runc into itself. We have just fixed this, and need to vendor an updated buildah into podman to fix it on F31 and Rawhide.

[giuseppe]

I can't remember what patch exactly, but there is a fix in crun 0.8 that is needed for working with Buildah.

Also Buildah doesn't uses systemd cgroups (it always uses cgroupfs), so we need something like:

$ podman build --runtime-flag 'systemd' .

I've opened a PR to take care of the second issue: #3944

[edsantiago]

Confirmed fixed in podman-1.5.2-0.63.dev.git511b071.fc32.x86_64, thank you