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# | ||
# Copyright (C) 2023 Intel Corporation | ||
# | ||
# 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. | ||
# | ||
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import re | ||
from typing import Optional | ||
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from psutil import Process | ||
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from granulate_utils.linux.process import get_process_cgroups | ||
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# ECS uses /ecs/uuid/container-id | ||
# standard Docker uses /docker/container-id | ||
# k8s uses /kubepods/{burstable,besteffort}/uuid/container-id | ||
# there are some variations to the above formats, but generally, the container | ||
# ID is always 64-hex digits. | ||
CONTAINER_ID_PATTERN = re.compile(r"[a-f0-9]{64}") | ||
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def get_process_container_id(process: Process) -> Optional[str]: | ||
""" | ||
Gets the container ID of a running process, or None if not in a container. | ||
:raises NoSuchProcess: If the process doesn't or no longer exists | ||
""" | ||
for proc_cgroup_line in get_process_cgroups(process): | ||
found = CONTAINER_ID_PATTERN.findall(proc_cgroup_line.relative_path) | ||
if found: | ||
return found[-1] | ||
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return None |
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