75 lines
1.9 KiB
Python
75 lines
1.9 KiB
Python
# Copyright (c) 2013 dotCloud, Inc.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import multiprocessing
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import os
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from oslo_config import cfg
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import psutil
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CONF = cfg.CONF
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def statvfs():
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docker_path = CONF.docker.root_directory
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if not os.path.exists(docker_path):
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docker_path = '/'
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return psutil.disk_usage(docker_path)
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def get_disk_usage():
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# This is the location where Docker stores its containers. It's currently
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# hardcoded in Docker so it's not configurable yet.
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st = statvfs()
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return {
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'total': st.total,
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'available': st.free,
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'used': st.used
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}
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def get_total_vcpus():
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return multiprocessing.cpu_count()
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def get_vcpus_used(containers):
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total_vcpus_used = 0
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for container in containers:
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if isinstance(container, dict):
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total_vcpus_used += container.get('Config', {}).get(
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'CpuShares', 0) / 1024
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return total_vcpus_used
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def get_memory_usage():
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vmem = psutil.virtual_memory()
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return {
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'total': vmem.total,
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'used': vmem.used
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}
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def get_mounts():
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with open('/proc/mounts') as f:
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return f.readlines()
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def get_cgroup_devices_path():
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for ln in get_mounts():
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fields = ln.split(' ')
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if fields[2] == 'cgroup' and 'devices' in fields[3].split(','):
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return fields[1]
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