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https://github.com/Telecominfraproject/ols-nos.git
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97c675c6d5
* [cron.d] Create cron job to periodically clean-up core files * Create script to scan /var/core and clean-up older core files * Create cron job to run clean-up script Signed-off-by: Danny Allen <daall@microsoft.com> * Update interval for running cron job * Respond to feedback * Change syslog id
52 lines
1.5 KiB
Python
Executable File
52 lines
1.5 KiB
Python
Executable File
#!/usr/bin/env python
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import syslog
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import os
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from collections import defaultdict
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from datetime import datetime
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SYSLOG_IDENTIFIER = 'core_cleanup.py'
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CORE_FILE_DIR = os.path.basename(__file__)
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MAX_CORE_FILES = 4
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def log_info(msg):
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syslog.openlog(SYSLOG_IDENTIFIER)
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syslog.syslog(syslog.LOG_INFO, msg)
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syslog.closelog()
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def log_error(msg):
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syslog.openlog(SYSLOG_IDENTIFIER)
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syslog.syslog(syslog.LOG_ERR, msg)
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syslog.closelog()
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def main():
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if os.getuid() != 0:
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log_error('Root required to clean up core files')
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return
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log_info('Cleaning up core files')
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core_files = [f for f in os.listdir(CORE_FILE_DIR) if os.path.isfile(os.path.join(CORE_FILE_DIR, f))]
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core_files_by_process = defaultdict(list)
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for f in core_files:
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process = f.split('.')[0]
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curr_files = core_files_by_process[process]
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curr_files.append(f)
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if len(curr_files) > MAX_CORE_FILES:
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curr_files.sort(reverse = True, key = lambda x: datetime.utcfromtimestamp(int(x.split('.')[1])))
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oldest_core = curr_files[MAX_CORE_FILES]
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log_info('Deleting {}'.format(oldest_core))
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try:
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os.remove(os.path.join(CORE_FILE_DIR, oldest_core))
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except:
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log_error('Unexpected error occured trying to delete {}'.format(oldest_core))
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core_files_by_process[process] = curr_files[0:MAX_CORE_FILES]
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log_info('Finished cleaning up core files')
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if __name__ == '__main__':
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main()
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