paunch/paunch/builder/podman.py

120 lines
5.5 KiB
Python

# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
#
import os
from paunch.builder import base
from paunch.utils import common
class PodmanBuilder(base.BaseBuilder):
def __init__(self, config_id, config, runner, labels=None, log=None,
cont_log_path=None, healthcheck_disabled=False, cleanup=True):
super(PodmanBuilder, self).__init__(config_id, config, runner,
labels, log, cont_log_path,
healthcheck_disabled, cleanup)
def container_run_args(self, cmd, container, delegate=None):
"""Prepare the run command args, from the container configuration.
:param cmd: The list of command options to be modified
:param container: A dict with container configurations
:param delegate: A predictable/unique name of the actual container
:returns: True if configuration is valid, otherwise False
"""
if delegate and container != delegate:
self.log.debug("Container {} has a delegate "
"{}".format(container, delegate))
if not delegate:
delegate = container
cconfig = self.config[container]
# write out a pid file so we can restart the container delegate
# via systemd
cmd.append('--conmon-pidfile=/var/run/{}.pid'.format(delegate))
if cconfig.get('detach', True):
cmd.append('--detach=true')
if self.cont_log_path is not None:
if os.path.isabs(self.cont_log_path):
if not os.path.exists(self.cont_log_path):
os.makedirs(self.cont_log_path)
log_path = os.path.join(self.cont_log_path, delegate)
logging = ['--log-driver', 'k8s-file',
'--log-opt', 'path=%s.log' % log_path]
cmd.extend(logging)
else:
raise ValueError('cont_log_path passed but not absolute.')
self.list_or_string_arg(cconfig, cmd, 'env_file', '--env-file')
self.list_or_dict_arg(cconfig, cmd, 'environment', '--env')
self.boolean_arg(cconfig, cmd, 'remove', '--rm')
self.boolean_arg(cconfig, cmd, 'interactive', '--interactive')
self.boolean_arg(cconfig, cmd, 'tty', '--tty')
self.string_arg(cconfig, cmd, 'net', '--net')
self.string_arg(cconfig, cmd, 'ipc', '--ipc')
self.string_arg(cconfig, cmd, 'pid', '--pid')
self.string_arg(cconfig, cmd, 'uts', '--uts')
# TODO(sbaker): implement ulimits property, deprecate this ulimit
# property
for u in cconfig.get('ulimit', []):
if u:
cmd.append('--ulimit=%s' % u)
self.string_arg(cconfig, cmd, 'privileged', '--privileged', self.lower)
self.string_arg(cconfig, cmd, 'user', '--user')
self.list_arg(cconfig, cmd, 'group_add', '--group-add')
self.list_arg(cconfig, cmd, 'volumes', '--volume')
self.list_arg(cconfig, cmd, 'volumes_from', '--volumes-from')
# TODO(sbaker): deprecate log_tag, implement log_driver, log_opt
if 'log_tag' in cconfig:
cmd.append('--log-opt=tag=%s' % cconfig['log_tag'])
self.string_arg(cconfig, cmd, 'cpu_shares', '--cpu-shares')
self.string_arg(cconfig, cmd, 'mem_limit', '--memory')
self.string_arg(cconfig, cmd, 'memswap_limit', '--memory-swap')
self.string_arg(cconfig, cmd, 'mem_swappiness', '--memory-swappiness')
self.list_or_string_arg(cconfig, cmd, 'security_opt', '--security-opt')
self.string_arg(cconfig, cmd, 'stop_signal', '--stop-signal')
self.string_arg(cconfig, cmd, 'hostname', '--hostname')
for extra_host in cconfig.get('extra_hosts', []):
if extra_host:
cmd.append('--add-host=%s' % extra_host)
if 'cpuset_cpus' in cconfig:
# 'all' is a special value to directly configure all CPUs
# that are available. Without specifying --cpuset-cpus, we'll
# let the container engine to figure out what CPUs are online.
# https://bugs.launchpad.net/tripleo/+bug/1868135
# https://bugzilla.redhat.com/show_bug.cgi?id=1813091
if cconfig['cpuset_cpus'] != 'all':
cmd.append('--cpuset-cpus=%s' % cconfig['cpuset_cpus'])
else:
with open('/proc/cmdline') as cmdline:
if 'isolcpus' in cmdline.read():
cmd.append('--cpuset-cpus=%s' %
common.get_cpus_allowed_list())
self.string_arg(cconfig, cmd,
'stop_grace_period', '--stop-timeout',
self.duration)
self.list_arg(cconfig, cmd, 'cap_add', '--cap-add')
self.list_arg(cconfig, cmd, 'cap_drop', '--cap-drop')
self.string_arg(cconfig, cmd, 'check_interval', '--check-interval')
cmd.append(cconfig.get('image', ''))
cmd.extend(self.command_argument(cconfig.get('command')))
return self.validate_volumes(cconfig.get('volumes', []))