reed-alert/example.lisp

(defvar *alerts*
  (list
   '(dont-use-it ("REMINDER" function params date hostname desc level os newline _ space result))
   '(void nil)
   '(mail nil)
   '(sms ("echo -n '" date _ function " CRITICAL " hostname "' | curl http://somewebservice"))
   '(mail ("echo -n '" date _ hostname " had problem on " function newline params _ " values " result newline
	   desc "' | mail -s '[Error] " function  " - " hostname "' foo@bar.com"))
   '(with-plus ("echo -n '" + date + _ + hostname + " had problem on " + function + newline + params + newline
		+ desc + "' | mail -s '[Error] " + function +  " - " + hostname + "' foo@bar.com"))))

(load "functions.lisp")

;; check if used percent :path partition is more than :limit
(=> mail disk-usage   (:path "/"    :limit 90))
(=> mail disk-usage   (:path "/usr" :limit 85))
(=> mail disk-usage   (:path "/tmp" :limit 1)) ;; failure

;; check if :path file exists
(=> mail file-exists  (:path "/bsd.rd" :desc "OpenBSD kernel /bsd.rd"))
(=> void file-exists  (:path "/non-existant-file")) ;; failure file not found

;; check if :path file exists and has been updated since :limit minutes
(=> void file-updated (:path "/var/log/messages" :limit 400))
(=> mail file-updated (:path "/bsd.rd"           :limit 1 :desc "OpenBSD kernel")) ;; failure

;; check if :path pid file process is running
(=> mail pid-running  (:path "/var/run/xdm.pid" :desc "XDM pid"))
(=> mail pid-running  (:path "/home/user/test.pid")) ;; failure

;; check if number of processes on the system is more than :limit
(=> mail number-of-processes (:limit 200))
(=> mail number-of-processes (:limit 1)) ;; failure

;; check if load average on (1/5/15) minutes is more than :limit
(=> mail load-average-1  (:limit 4))
(=> mail load-average-5  (:limit 2))
(=> mail load-average-15 (:limit 1))
(=> mail load-average-1  (:limit 0.2)) ;; should trigger error

;; check if :host host is reachable
(=> mail ping (:host "8.8.8.8"      :desc "Google DNS"))
(=> void ping (:host "2.3.4.256"    :desc "Not valid ipv4 address")) ;; fail error
(=> void ping (:host "127.40.30.21" :desc "Certainly not used address")) ;; fail time out

;; check if :command command return 0 (success) or something else (error)
(=> void command (:command "echo hello")) ;; success
(=> void command (:command "ls /non-existent-file")) ;; fail

(quit)