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python3.9
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cloudinit
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dump.py
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# This file is part of cloud-init. See LICENSE file for license information. import calendar import sys from datetime import datetime, timezone from cloudinit import atomic_helper, subp, util stage_to_description = { "finished": "finished running cloud-init", "init-local": "starting search for local datasources", "init-network": "searching for network datasources", "init": "searching for network datasources", "modules-config": "running config modules", "modules-final": "finalizing modules", "modules": "running modules for", "single": "running single module ", } # logger's asctime format CLOUD_INIT_ASCTIME_FMT = "%Y-%m-%d %H:%M:%S,%f" # journctl -o short-precise CLOUD_INIT_JOURNALCTL_FMT = "%b %d %H:%M:%S.%f %Y" # other DEFAULT_FMT = "%b %d %H:%M:%S %Y" def parse_timestamp(timestampstr): # default syslog time does not include the current year months = [calendar.month_abbr[m] for m in range(1, 13)] if timestampstr.split()[0] in months: # Aug 29 22:55:26 FMT = DEFAULT_FMT if "." in timestampstr: FMT = CLOUD_INIT_JOURNALCTL_FMT dt = datetime.strptime( timestampstr + " " + str(datetime.now().year), FMT, ).replace(tzinfo=timezone.utc) timestamp = dt.timestamp() elif "," in timestampstr: # 2016-09-12 14:39:20,839 dt = datetime.strptime(timestampstr, CLOUD_INIT_ASCTIME_FMT).replace( tzinfo=timezone.utc ) timestamp = dt.timestamp() else: # allow GNU date(1) to handle other formats we don't expect # This may throw a ValueError if no GNU date can be found timestamp = parse_timestamp_from_date(timestampstr) return float(timestamp) def has_gnu_date(): """GNU date includes a string containing the word GNU in it in help output. Posix date does not. Use this to indicate on Linux systems without GNU date that the extended parsing is not available. """ return "GNU" in subp.subp(["date", "--help"]).stdout def parse_timestamp_from_date(timestampstr): if not util.is_Linux() and subp.which("gdate"): date = "gdate" elif has_gnu_date(): date = "date" else: raise ValueError( f"Unable to parse timestamp without GNU date: [{timestampstr}]" ) return float( subp.subp([date, "-u", "+%s.%3N", "-d", timestampstr]).stdout.strip() ) def parse_ci_logline(line): # Stage Starts: # Cloud-init v. 0.7.7 running 'init-local' at \ # Fri, 02 Sep 2016 19:28:07 +0000. Up 1.0 seconds. # Cloud-init v. 0.7.7 running 'init' at \ # Fri, 02 Sep 2016 19:28:08 +0000. Up 2.0 seconds. # Cloud-init v. 0.7.7 finished at # Aug 29 22:55:26 test1 [CLOUDINIT] handlers.py[DEBUG]: \ # finish: modules-final: SUCCESS: running modules for final # 2016-08-30T21:53:25.972325+00:00 y1 [CLOUDINIT] handlers.py[DEBUG]: \ # finish: modules-final: SUCCESS: running modules for final # # Nov 03 06:51:06.074410 x2 cloud-init[106]: [CLOUDINIT] util.py[DEBUG]: \ # Cloud-init v. 0.7.8 running 'init-local' at \ # Thu, 03 Nov 2016 06:51:06 +0000. Up 1.0 seconds. # # 2017-05-22 18:02:01,088 - util.py[DEBUG]: Cloud-init v. 0.7.9 running \ # 'init-local' at Mon, 22 May 2017 18:02:01 +0000. Up 2.0 seconds. # # Apr 30 19:39:11 cloud-init[2673]: handlers.py[DEBUG]: start: \ # init-local/check-cache: attempting to read from cache [check] amazon_linux_2_sep = " cloud-init[" separators = [" - ", " [CLOUDINIT] ", amazon_linux_2_sep] found = False for sep in separators: if sep in line: found = True break if not found: return None (timehost, eventstr) = line.split(sep) # journalctl -o short-precise if timehost.endswith(":"): timehost = " ".join(timehost.split()[0:-1]) if "," in timehost: timestampstr, extra = timehost.split(",") timestampstr += ",%s" % extra.split()[0] if " " in extra: hostname = extra.split()[-1] else: hostname = timehost.split()[-1] if sep == amazon_linux_2_sep: # This is an Amazon Linux style line, with no hostname and a PID. # Use the whole of timehost as timestampstr, and strip off the PID # from the start of eventstr. timestampstr = timehost.strip() eventstr = eventstr.split(maxsplit=1)[1] else: timestampstr = timehost.split(hostname)[0].strip() if "Cloud-init v." in eventstr: event_type = "start" if "running" in eventstr: stage_and_timestamp = eventstr.split("running")[1].lstrip() event_name, _ = stage_and_timestamp.split(" at ") event_name = event_name.replace("'", "").replace(":", "-") if event_name == "init": event_name = "init-network" else: # don't generate a start for the 'finished at' banner return None event_description = stage_to_description[event_name] else: (_pymodloglvl, event_type, event_name) = eventstr.split()[0:3] event_description = eventstr.split(event_name)[1].strip() event = { "name": event_name.rstrip(":"), "description": event_description, "timestamp": parse_timestamp(timestampstr), "origin": "cloudinit", "event_type": event_type.rstrip(":"), } if event["event_type"] == "finish": result = event_description.split(":")[0] desc = event_description.split(result)[1].lstrip(":").strip() event["result"] = result event["description"] = desc.strip() return event def dump_events(cisource=None, rawdata=None): events = [] event = None CI_EVENT_MATCHES = ["start:", "finish:", "Cloud-init v."] if not any([cisource, rawdata]): raise ValueError("Either cisource or rawdata parameters are required") if rawdata: data = rawdata.splitlines() else: data = cisource.readlines() for line in data: for match in CI_EVENT_MATCHES: if match in line: try: event = parse_ci_logline(line) except ValueError: sys.stderr.write("Skipping invalid entry\n") if event: events.append(event) return events, data def main(): if len(sys.argv) > 1: cisource = open(sys.argv[1]) else: cisource = sys.stdin return atomic_helper.json_dumps(dump_events(cisource)) if __name__ == "__main__": print(main())