Python call to Popen attempt to close all open file descriptors by looking at
the maximum number of open file descripors defined in ulimits. If we set
this to a huge number by default Popen will run much slower since it will
attempt to close the total number of FDs one by one.
We should just use the default that the calling process had unless the user
overrides the default in containers.conf.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
In root running containers we want to approach the MAX Number of processes and
open files, so that services running Podman will work when they have lots of open
files or processes. In rootless containers this number can not be changed. This
patch will only increase the numbers if the process is allowed.
Docker set the limit to 2**20 (1048576), it looks like this was the max for RHEL5 OS.
So we fall back to attempt to set this limit if the MAC_PROC limit is not allowed.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
Daniel J Walsh
Sascha Grunert