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fix: Handle /proc/1/sched missing error

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Reviewed-By: Rob Crittenden <rcritten@redhat.com>
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
This commit is contained in:
Viacheslav Sychov
2022-10-06 10:01:21 +02:00
committed by Florence Blanc-Renaud
parent 0ce3ab36b4
commit d33a2523ee
1 changed files with 14 additions and 8 deletions
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22
ipaserver/install/installutils.py
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@@ -1044,18 +1044,24 @@ def in_container():
systemd-detect-virt requires the whole systemd subsystem which
isn't a reasonable require in a container.
"""
data_sched = None
if not is_hidepid():
with open('/proc/1/sched', 'r') as sched:
data_sched = sched.readline()
else:
data_sched = []
try:
with open('/proc/1/sched', 'r') as sched:
data_sched = sched.readline()
except (FileNotFoundError, PermissionError):
pass
with open('/proc/self/cgroup', 'r') as cgroup:
data_cgroup = cgroup.readline()
data_cgroup = None
try:
with open('/proc/self/cgroup', 'r') as cgroup:
data_cgroup = cgroup.readline()
except (FileNotFoundError, PermissionError):
pass
checks = [
data_sched.split()[0] not in ('systemd', 'init',),
data_cgroup.split()[0] in ('libpod'),
data_sched and data_sched.split()[0] not in ('systemd', 'init',),
data_cgroup and data_cgroup.split()[0] in ('libpod'),
os.path.exists('/.dockerenv'),
os.path.exists('/.dockerinit'),
os.getenv('container', None) is not None