[checkmk-commits] Check_MK Git: check_mk: New automation for parent scanning via WATO

Module: check_mk Branch: master Commit: 44f2097bb784902d8c5d2d87129ab95b3d6f42f4 URL: http://git.mathias-kettner.de/git/?p=check_mk.git;a=commit;h=44f2097bb78490… Author: Mathias Kettner &lt;mk(a)mathias-kettner.de&gt; Date: Sun Apr 29 09:16:58 2012 +0200 New automation for parent scanning via WATO --- modules/automation.py | 16 ++++++++++++ modules/check_mk.py | 63 +++++++++++++++++++++++++++++++----------------- 2 files changed, 57 insertions(+), 22 deletions(-) diff --git a/modules/automation.py b/modules/automation.py index 3a3240e..a6e72cb 100644 --- a/modules/automation.py +++ b/modules/automation.py @@ -55,6 +55,8 @@ def do_automation(cmd, args): result = automation_restart("reload") elif cmd == "restart": result = automation_restart("restart") + elif cmd == "scan-parents": + result = automation_scan_parents(args) else: raise MKAutomationError("Automation command '%s' is not implemented." % cmd) @@ -521,3 +523,17 @@ def automation_get_check_information(): if check["group"]: checks[check_type]["group"] = check["group"] return checks + +def automation_scan_parents(args): + hostnames = args + traceroute_prog = find_bin_in_path('traceroute') + if not traceroute_prog: + raise MKAutomationError("Cannot find binary <tt>traceroute</tt> in search path.") + + try: + gateways = scan_parents_of(hostnames, silent=True) + return gateways + except Exception, e: + raise MKAutomationError(str(e)) + + diff --git a/modules/check_mk.py b/modules/check_mk.py index 4243f45..1a91103 100755 --- a/modules/check_mk.py +++ b/modules/check_mk.py @@ -3842,7 +3842,7 @@ def do_scan_parents(hosts): gws = scan_parents_of(chunk) - for host, gw in zip(chunk, gws): + for host, (gw, message) in zip(chunk, gws): if gw: gateway, gateway_ip = gw if not gateway: # create artificial host @@ -3874,7 +3874,7 @@ def do_scan_parents(hosts): out.write("parents += %s\n\n" % pprint.pformat(parent_rules)) sys.stdout.write("\nWrote %s\n" % outfilename) -def scan_parents_of(hosts): +def scan_parents_of(hosts, silent=False): nagios_ip = lookup_ipaddress(monitoring_host) os.putenv("LANG", "") os.putenv("LC_ALL", "") @@ -3887,36 +3887,51 @@ def scan_parents_of(hosts): sys.stdout.flush() try: ip = lookup_ipaddress(host) + command = "traceroute -m 15 -n -w 3 %s" % ip + if opt_debug: + sys.stderr.write("Running '%s'\n" % command) + procs.append( (host, ip, os.popen(command) ) ) except: - sys.stderr.write("%s: cannot resolve host name\n" % host) - ip = None - command = "traceroute -m 15 -n -w 3 %s" % ip - if opt_debug: - sys.stderr.write("Running '%s'\n" % command) - procs.append( (host, ip, os.popen(command) ) ) + procs.append( (host, None, os.popen( + "echo 'ERROR: cannot resolve host name'"))) - # Now all run and we begin to read the answers + # Output marks with status of each single scan def dot(color, dot='o'): - sys.stdout.write(tty_bold + color + dot + tty_normal) - sys.stdout.flush() + if not silent: + sys.stdout.write(tty_bold + color + dot + tty_normal) + sys.stdout.flush() + # Now all run and we begin to read the answers. For each host + # we add a pair to gateways: the gateway and a diagnostig output gateways = [] for host, ip, proc in procs: lines = [l.strip() for l in proc.readlines()] exitstatus = proc.close() if exitstatus: dot(tty_red, '*') - gateways.append(None) + gateways.append((None, "Traceroute failed with exit code %d" % (exitstatus & 255))) continue - if len(lines) == 0: + if len(lines) == 1 and lines[0].startswith("ERROR:"): + message = lines[0][6:].strip() + if opt_verbose: + sys.stderr.write("%s: %s\n" % (host, message)) + dot(tty_red, "D") + gateways.append((None, message)) + continue + + elif len(lines) == 0: if opt_debug: raise MKGeneralException("Cannot execute %s. Is traceroute installed? Are you root?" % command) else: dot(tty_red, '!') + continue + elif len(lines) < 2: - sys.stderr.write("%s: %s\n" % (host, ' '.join(lines))) - gateways.append(None) + if not silent: + sys.stderr.write("%s: %s\n" % (host, ' '.join(lines))) + gateways.append((None, "The output of traceroute seem truncated:\n%s" % + ("".join(lines)))) dot(tty_blue) continue @@ -3943,11 +3958,13 @@ def scan_parents_of(hosts): elif route == '*': routes.append(None) # No answer from this router else: - sys.stderr.write("%s: invalid output line from traceroute: '%s'\n" % (host, line)) + if not silent: + sys.stderr.write("%s: invalid output line from traceroute: '%s'\n" % (host, line)) if len(routes) == 0: - sys.stderr.write("%s: incomplete output from traceroute. No routes found.\n" % host) - gateways.append(None) + error = "incomplete output from traceroute. No routes found." + sys.stderr.write("%s: %s\n" % (host, error)) + gateways.append((None, error)) dot(tty_red) continue @@ -3957,7 +3974,7 @@ def scan_parents_of(hosts): # this in monitoring_host. elif len(routes) == 1: if ip == nagios_ip: - gateways.append(None) # We are the monitoring host + gateways.append((None, "")) # We are the monitoring host dot(tty_white, 'N') else: gateways.append( (monitoring_host, nagios_ip) ) @@ -3972,8 +3989,10 @@ def scan_parents_of(hosts): route = r break if not route: - sys.stderr.write("%s: No usable routing information\n" % host) - gateways.append(None) + error = "No usable routing information" + if not silent: + sys.stderr.write("%s: %s\n" % (host, error)) + gateways.append((None, error)) dot(tty_blue) continue @@ -3982,7 +4001,7 @@ def scan_parents_of(hosts): gateway = ip_to_hostname(route) if opt_verbose: sys.stdout.write("%s(%s) " % (gateway, gateway_ip)) - gateways.append( (gateway, gateway_ip) ) + gateways.append( ((gateway, gateway_ip), "") ) dot(tty_green, 'G') return gateways