84 lines
3.3 KiB
Python
84 lines
3.3 KiB
Python
from fnmatch import fnmatch
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from os import stat
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from os import walk
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from os.path import abspath
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from os.path import exists
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from os.path import join
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import time
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from monagent.collector.checks import AgentCheck
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class DirectoryCheck(AgentCheck):
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"""This check is for monitoring and reporting metrics on the files for a provided directory
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WARNING: the user/group that dd-agent runs as must have access to stat the files in the desired directory
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Config options:
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"directory" - string, the directory to gather stats for. required
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"name" - string, the name to use when tagging the metrics. defaults to the "directory"
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"pattern" - string, the `fnmatch` pattern to use when reading the "directory"'s files. default "*"
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"recursive" - boolean, when true the stats will recurse into directories. default False
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"""
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def check(self, instance):
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if "directory" not in instance:
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raise Exception('DirectoryCheck: missing "directory" in config')
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directory = instance["directory"]
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abs_directory = abspath(directory)
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name = instance.get("name") or directory
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pattern = instance.get("pattern") or "*"
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recursive = instance.get("recursive") or False
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if not exists(abs_directory):
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raise Exception("DirectoryCheck: the directory (%s) does not exist" % abs_directory)
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self._get_stats(abs_directory, name, pattern, recursive)
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def _get_stats(self, directory, name, pattern, recursive):
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dimensions = {"name": name}
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directory_bytes = 0
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directory_files = 0
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for root, dirs, files in walk(directory):
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for filename in files:
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filename = join(root, filename)
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# check if it passes our filter
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if not fnmatch(filename, pattern):
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continue
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try:
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file_stat = stat(filename)
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except OSError as ose:
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self.warning("DirectoryCheck: could not stat file %s - %s" % (filename, ose))
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else:
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directory_files += 1
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directory_bytes += file_stat.st_size
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# file specific metrics
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self.histogram(
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"system.disk.directory.file.bytes",
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file_stat.st_size,
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dimensions=dimensions)
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self.histogram(
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"system.disk.directory.file.modified_sec_ago",
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time.time() -
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file_stat.st_mtime,
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dimensions=dimensions)
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self.histogram(
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"system.disk.directory.file.created_sec_ago",
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time.time() -
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file_stat.st_ctime,
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dimensions=dimensions)
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# os.walk gives us all sub-directories and their files
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# if we do not want to do this recursively and just want
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# the top level directory we gave it, then break
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if not recursive:
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break
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# number of files
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self.gauge("system.disk.directory.files", directory_files, dimensions=dimensions)
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# total file size
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self.gauge("system.disk.directory.bytes", directory_bytes, dimensions=dimensions)
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