Monitを使ってApacheを監視する(2)alertをGMAILへ送信する

set alert you@gmail.com with mail-format { 
  from: my@gmail.com
  subject: $SERVICE $EVENT at $DATE
  message: 
Monit $ACTION $SERVICE at $DATE on $HOST: $DESCRIPTION.
Yours sincerely,
monit
}
 
set mailserver smtp.gmail.com port 587 username "my@gmail.com" password "mypassword" using tlsv1
 
check process httpd with pidfile /var/run/httpd.pid
    start program = "/etc/init.d/httpd start"
    stop program = "/etc/init.d/httpd stop"
    if failed host www.example.com port 80
      protocol HTTP request /alive.html then alert
    group httpd

$ /usr/bin/monit -vI
Runtime constants:
 Control file       = /etc/monit.conf
 Log file           = /var/log/monit
 Pid file           = /var/run/monit.pid
 Debug              = True
 Log                = True
 Use syslog         = False
 Is Daemon          = True
 Use process engine = True
 Poll time          = 60 seconds
 Mail server(s)     = smtp.gmail.com:587(ssl)
 Mail from          = (not defined)
 Mail subject       = (not defined)
 Mail message       = (not defined)
 Start monit httpd  = False
 Alert mail to      = you@gmail.com
   Alert on         = All events

The service list contains the following entries:

Process Name          = httpd
 Group                = httpd
 Pid file             = /var/run/httpd.pid
 Monitoring mode      = active
 Start program        = '/etc/init.d/httpd start' timeout 1 cycle(s)
 Stop program         = '/etc/init.d/httpd stop' timeout 1 cycle(s)
 Pid                  = if changed 1 times within 1 cycle(s) then alert
 Ppid                 = if changed 1 times within 1 cycle(s) then alert
 Port                 = if failed www.example.com:80/alive.html [HTTP via TCP] with timeout 5 seconds 1 times within 1 cycle(s) then alert else if passed 1 times within 1 cycle(s) then alert

System Name           = host.example.com
 Monitoring mode      = active

-------------------------------------------------------------------------------
monit: pidfile '/var/run/monit.pid' does not exist
Monit started
Monit instance changed notification is sent to you@gmail.com
'httpd' zombie check passed [status_flag=0000]
'httpd' succeeded connecting to INET[www.example.com:80] via TCP
'httpd' succeeded testing protocol [HTTP] at INET[www.example.com:80] via TCP

host.exmaple.com Monit instance changed at Mon, 20 Dec 2010 03:38:02 +0900

$ mv /var/www/html/alive.html /var/www/html/alive_back.html
$

$ /usr/bin/monit -vI
...
-------------------------------------------------------------------------------
monit: pidfile '/var/run/monit.pid' does not exist
Monit started
Monit instance changed notification is sent to you@gmail.com
'httpd' zombie check passed [status_flag=0000]
'httpd' succeeded connecting to INET[www.example.com:80] via TCP
'httpd' succeeded testing protocol [HTTP] at INET[www.example.com:80] via TCP
...
'httpd' zombie check passed [status_flag=0000]
'httpd' succeeded connecting to INET[www.example.com:80] via TCP
HTTP error: Server returned status 404
'httpd' failed protocol test [HTTP] at INET[www.example.com:80] via TCP
Connection failed notification is sent to you@gmail.com

Subject : httpd Connection failed at Mon, 20 Dec 2010 04:22:19 +0900

Monit alert httpd at Mon, 20 Dec 2010 04:22:19 +0900 on host.example.com: 'httpd' failed protocol test [HTTP] at INET[www.example.com:80] via TCP.
Yours sincerely,
monit