43 lines
1.5 KiB
Python
43 lines
1.5 KiB
Python
# Copyright (c) 2020 Red Hat, Inc.
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#
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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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from __future__ import absolute_import
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import tobiko
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from tobiko.shell.sh import _execute
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class UptimeError(tobiko.TobikoException):
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message = "Unable to get uptime from host: {error}"
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def get_uptime(**execute_params):
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"""Returns the number of seconds passed since last host reboot
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It reads and parses remote special file /proc/uptime and returns a floating
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point value that represents the number of seconds passed since last host
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reboot
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"""
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result = _execute.execute('cat /proc/uptime', stdin=False, stdout=True,
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stderr=True, expect_exit_status=None,
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**execute_params)
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output = result.stdout and result.stdout.strip()
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if result.exit_status or not output:
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raise UptimeError(error=result.stderr)
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uptime_line = output.splitlines()[0]
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uptime_string = uptime_line.split()[0]
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return float(uptime_string)
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