Zabbix auto remove active agent if agent unreachable for more than day

[PratapSingh]

Hi ,

I have almost every host monitored using active agent. Hence Auto Remove discovery rule is not working for me as suggested in document. Can someone point me to the right direction to enable auto remove for active agent if those are unreachable for more than 24 hours?

I looked at forum thread as well but facing some issue as the code seems to be not working with the latest zabbix api.

Any help would be appreciated.

[PratapSingh]

Can somebody tell me what exactly I have to look into api response to find out down/unresponsive agent/host? Also all the hosts are being monitored using active agent so I am finding very hard to find api response data in this case. However I have script ready to delete the host by host id but I am not sure what parameter to look into api response to find out unresponsive/down hosts from zabbix api.

Any clue/help would be appreciated.

[PratapSingh]

Not sure if I have written a perfect code yet but I run a cron now with below code and it removes hosts for which trigger value is "Zabbix agent on {HOST.NAME} is unreachable for 5 minutes"

#!/usr/bin/python
def removehost():
    print "in removehost function"
    import time
    from zabbix_api import ZabbixAPI, Already_Exists
    z = ZabbixAPI(server="https://zabbix.example.com/zabbix")
    z.login("exampleuser", "exampleuser")
    for trigger in z.trigger.get({"output": [ "triggerid", "description", "priority" ], "filter": { "value": 1 }, "sortfield": "priority", "sortorder": "DESC"}):
        if trigger["description"] == 'Zabbix agent on {HOST.NAME} is unreachable for 5 minutes':
            trigmsg = z.trigger.get({"triggerids": trigger["triggerid"], "selectHosts": "extend"})
            for tm in trigmsg:
                for l in tm['hosts']:
                    print l['name'], l['hostid']
                    print "Will kill host " + l['hostid'] + " " + l['host'] + trigger["description"]
                    sendmail(l['hostid'], l['host'], trigger["description"])
                    z.host.delete( [int(l['hostid'])] )

def sendmail(hostid, host, triggermessage):
    print "in sendmail function"
    import smtplib
    SERVER = "localhost"
    FROM = "[email protected]"
    TO = ["[email protected]"] # must be a list
    SUBJECT = "Host removed from Zabbix %s" % host
    TEXT = "Host is not responding!! " + "Will kill host " + hostid + " "  + host + "  Reason: " + triggermessage
    # Prepare actual message
    message = """Subject: %s

    %s
    """ % (SUBJECT, TEXT)
    print message
    # Send the mail
    server = smtplib.SMTP(SERVER)
    server.sendmail(FROM, TO, message)
    server.quit()

if __name__ == "__main__":
    removehost()