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when checking if system services are running, when a public service fails, try a localhost connection to see if the problem is the service or networking

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This commit is contained in:
Joshua Tauberer 2015-01-17 13:05:36 -05:00
parent 5054d78693
commit bac28d2386
1 changed files with 24 additions and 5 deletions
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29
management/status_checks.py
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@ -55,7 +55,6 @@ def run_services_checks(env):
{ "name": "Spamassassin", "port": 10025, "public": False, },
{ "name": "OpenDKIM", "port": 8891, "public": False, },
{ "name": "Memcached", "port": 11211, "public": False, },
{ "name": "Sieve (dovecot)", "port": 4190, "public": True, },
{ "name": "Mail-in-a-Box Management Daemon", "port": 10222, "public": False, },
{ "name": "SSH Login (ssh)", "port": 22, "public": True, },
@ -63,6 +62,7 @@ def run_services_checks(env):
{ "name": "Incoming Mail (SMTP/postfix)", "port": 25, "public": True, },
{ "name": "Outgoing Mail (SMTP 587/postfix)", "port": 587, "public": True, },
#{ "name": "Postfix/master", "port": 10587, "public": True, },
{ "name": "Sieve (dovecot)", "port": 4190, "public": False, }, # it binds to public IP but we'll fix that later
{ "name": "IMAPS (dovecot)", "port": 993, "public": True, },
{ "name": "HTTP Web (nginx)", "port": 80, "public": True, },
{ "name": "HTTPS Web (nginx)", "port": 443, "public": True, },
@ -72,15 +72,34 @@ def run_services_checks(env):
fatal = False
for service in services:
host = "127.0.0.1" if not service["public"] else env['PUBLIC_IP']
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.settimeout(.1)
try:
s.connect((
"127.0.0.1" if not service["public"] else env['PUBLIC_IP'],
service["port"]))
s.connect((host, service["port"]))
except OSError as e:
# Connection to service failed.
# For public services, except DNS (because a different service runs
# locally), try a local connection too. If a localhost connection
# succeeds, show a different error.
if service["public"] and service["port"] != 53:
try:
s1 = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s1.settimeout(.1)
s1.connect(("127.0.0.1", service["port"]))
env['out'].print_error("%s is running but is not publicly accessible (%s:%d %s)." % (service['name'], host, service["port"], str(e)))
error = True
continue # skip error below
except Exception as e1:
# Report error as below.
pass
finally:
s1.close()
# Service appears to not be running.
error = True
env['out'].print_error("%s is not running (%s)." % (service['name'], str(e)))
env['out'].print_error("%s is not running (%s:%d %s)." % (service['name'], host, service["port"], str(e)))
# Why is nginx not running?
if service["port"] in (80, 443):