Filename: //lib/python3//dist-packages/cloudinit/analyze/__main__.py

# Copyright (C) 2017 Canonical Ltd. # # This file is part of cloud-init. See LICENSE file for license information. import argparse import re import sys from cloudinit.util import json_dumps from datetime import datetime from . import dump from . import show def get_parser(parser=None): if not parser: parser = argparse.ArgumentParser( prog='cloudinit-analyze', description='Devel tool: Analyze cloud-init logs and data') subparsers = parser.add_subparsers(title='Subcommands', dest='subcommand') subparsers.required = True parser_blame = subparsers.add_parser( 'blame', help='Print list of executed stages ordered by time to init') parser_blame.add_argument( '-i', '--infile', action='store', dest='infile', default='/var/log/cloud-init.log', help='specify where to read input.') parser_blame.add_argument( '-o', '--outfile', action='store', dest='outfile', default='-', help='specify where to write output. ') parser_blame.set_defaults(action=('blame', analyze_blame)) parser_show = subparsers.add_parser( 'show', help='Print list of in-order events during execution') parser_show.add_argument('-f', '--format', action='store', dest='print_format', default='%I%D @%Es +%ds', help='specify formatting of output.') parser_show.add_argument('-i', '--infile', action='store', dest='infile', default='/var/log/cloud-init.log', help='specify where to read input.') parser_show.add_argument('-o', '--outfile', action='store', dest='outfile', default='-', help='specify where to write output.') parser_show.set_defaults(action=('show', analyze_show)) parser_dump = subparsers.add_parser( 'dump', help='Dump cloud-init events in JSON format') parser_dump.add_argument('-i', '--infile', action='store', dest='infile', default='/var/log/cloud-init.log', help='specify where to read input. ') parser_dump.add_argument('-o', '--outfile', action='store', dest='outfile', default='-', help='specify where to write output. ') parser_dump.set_defaults(action=('dump', analyze_dump)) parser_boot = subparsers.add_parser( 'boot', help='Print list of boot times for kernel and cloud-init') parser_boot.add_argument('-i', '--infile', action='store', dest='infile', default='/var/log/cloud-init.log', help='specify where to read input. ') parser_boot.add_argument('-o', '--outfile', action='store', dest='outfile', default='-', help='specify where to write output.') parser_boot.set_defaults(action=('boot', analyze_boot)) return parser def analyze_boot(name, args): """Report a list of how long different boot operations took. For Example: -- Most Recent Boot Record -- Kernel Started at: <time> Kernel ended boot at: <time> Kernel time to boot (seconds): <time> Cloud-init activated by systemd at: <time> Time between Kernel end boot and Cloud-init activation (seconds):<time> Cloud-init start: <time> """ infh, outfh = configure_io(args) kernel_info = show.dist_check_timestamp() status_code, kernel_start, kernel_end, ci_sysd_start = \ kernel_info kernel_start_timestamp = datetime.utcfromtimestamp(kernel_start) kernel_end_timestamp = datetime.utcfromtimestamp(kernel_end) ci_sysd_start_timestamp = datetime.utcfromtimestamp(ci_sysd_start) try: last_init_local = \ [e for e in _get_events(infh) if e['name'] == 'init-local' and 'starting search' in e['description']][-1] ci_start = datetime.utcfromtimestamp(last_init_local['timestamp']) except IndexError: ci_start = 'Could not find init-local log-line in cloud-init.log' status_code = show.FAIL_CODE FAILURE_MSG = 'Your Linux distro or container does not support this ' \ 'functionality.\n' \ 'You must be running a Kernel Telemetry supported ' \ 'distro.\nPlease check ' \ 'https://cloudinit.readthedocs.io/en/latest' \ '/topics/analyze.html for more ' \ 'information on supported distros.\n' SUCCESS_MSG = '-- Most Recent Boot Record --\n' \ ' Kernel Started at: {k_s_t}\n' \ ' Kernel ended boot at: {k_e_t}\n' \ ' Kernel time to boot (seconds): {k_r}\n' \ ' Cloud-init activated by systemd at: {ci_sysd_t}\n' \ ' Time between Kernel end boot and Cloud-init ' \ 'activation (seconds): {bt_r}\n' \ ' Cloud-init start: {ci_start}\n' CONTAINER_MSG = '-- Most Recent Container Boot Record --\n' \ ' Container started at: {k_s_t}\n' \ ' Cloud-init activated by systemd at: {ci_sysd_t}\n' \ ' Cloud-init start: {ci_start}\n' \ status_map = { show.FAIL_CODE: FAILURE_MSG, show.CONTAINER_CODE: CONTAINER_MSG, show.SUCCESS_CODE: SUCCESS_MSG } kernel_runtime = kernel_end - kernel_start between_process_runtime = ci_sysd_start - kernel_end kwargs = { 'k_s_t': kernel_start_timestamp, 'k_e_t': kernel_end_timestamp, 'k_r': kernel_runtime, 'bt_r': between_process_runtime, 'k_e': kernel_end, 'k_s': kernel_start, 'ci_sysd': ci_sysd_start, 'ci_sysd_t': ci_sysd_start_timestamp, 'ci_start': ci_start } outfh.write(status_map[status_code].format(**kwargs)) return status_code def analyze_blame(name, args): """Report a list of records sorted by largest time delta. For example: 30.210s (init-local) searching for datasource 8.706s (init-network) reading and applying user-data 166ms (modules-config) .... 807us (modules-final) ... We generate event records parsing cloud-init logs, formatting the output and sorting by record data ('delta') """ (infh, outfh) = configure_io(args) blame_format = ' %ds (%n)' r = re.compile(r'(^\s+\d+\.\d+)', re.MULTILINE) for idx, record in enumerate(show.show_events(_get_events(infh), blame_format)): srecs = sorted(filter(r.match, record), reverse=True) outfh.write('-- Boot Record %02d --\n' % (idx + 1)) outfh.write('\n'.join(srecs) + '\n') outfh.write('\n') outfh.write('%d boot records analyzed\n' % (idx + 1)) def analyze_show(name, args): """Generate output records using the 'standard' format to printing events. Example output follows: Starting stage: (init-local) ... Finished stage: (init-local) 0.105195 seconds Starting stage: (init-network) ... Finished stage: (init-network) 0.339024 seconds Starting stage: (modules-config) ... Finished stage: (modules-config) 0.NNN seconds Starting stage: (modules-final) ... Finished stage: (modules-final) 0.NNN seconds """ (infh, outfh) = configure_io(args) for idx, record in enumerate(show.show_events(_get_events(infh), args.print_format)): outfh.write('-- Boot Record %02d --\n' % (idx + 1)) outfh.write('The total time elapsed since completing an event is' ' printed after the "@" character.\n') outfh.write('The time the event takes is printed after the "+" ' 'character.\n\n') outfh.write('\n'.join(record) + '\n') outfh.write('%d boot records analyzed\n' % (idx + 1)) def analyze_dump(name, args): """Dump cloud-init events in json format""" (infh, outfh) = configure_io(args) outfh.write(json_dumps(_get_events(infh)) + '\n') def _get_events(infile): rawdata = None events, rawdata = show.load_events_infile(infile) if not events: events, _ = dump.dump_events(rawdata=rawdata) return events def configure_io(args): """Common parsing and setup of input/output files""" if args.infile == '-': infh = sys.stdin else: try: infh = open(args.infile, 'r') except OSError: sys.stderr.write('Cannot open file %s\n' % args.infile) sys.exit(1) if args.outfile == '-': outfh = sys.stdout else: try: outfh = open(args.outfile, 'w') except OSError: sys.stderr.write('Cannot open file %s\n' % args.outfile) sys.exit(1) return (infh, outfh) if __name__ == '__main__': parser = get_parser() args = parser.parse_args() (name, action_functor) = args.action action_functor(name, args) # vi: ts=4 expandtab

./Ninja\.