nagios-website-add.sh

   1 #!/usr/bin/env bash
   2
   3 ssl=0
   4 www=0
   5 cname=0
   6 config_dir=/etc/nagios3/conf.d
   7 config_file_web=$config_dir/web_services.cfg
   8
   9 export params=''
  10
  11 function help() {
  12     echo $0': [-s|-W|-D] <-w website> [-h hostname] [-c cname1,cname2,etc...]'
  13     echo -e "\t-s Add SSL monitoring"
  14     echo -e "\t-W Also add a monitor for the WWW record."
  15     echo -e "\t-D Delete the monitor(s) for the hostname/website provided."
  16     echo -e "\t-h Provide a hostname, useful for VHOSTs"
  17     echo -e "\t-c A comma seperated list of cnames to add monitors for."
  18 }
  19
  20 function set-params() {
  21     # Array is: use, description, host_name, check_command
  22     params=("$1" "$2" "$3" "$4")
  23 }
  24
  25 function set-http-params() {
  26     set-params 'http-vhost2' "URL: $1" $2 "check_http_vhost2!$2!$1"
  27 }
  28
  29 function set-https-params() {
  30     set-params 'http-vhost' "SSL Cert: $1" $2 "check_http_vhost2!$2!$1"
  31 }
  32
  33 function write-config-header() {
  34     echo "# AUTOGENERATED CONFIG FOR ${params[1]}"
  35     echo "# User: $USER"
  36     echo "# Date: `date '+%D %T'`"
  37 }
  38
  39 function write-config-footer() {
  40     echo "# END ${params[1]}"
  41 }
  42
  43 function write-config-body() {
  44     echo "define service {"
  45     echo -e "\tuse\t\t\t${params[0]}"
  46     echo -e "\tdescription\t\t${params[1]}"
  47     echo -e "\thost_name\t\t${params[2]}"
  48     echo -e "\tcheck_command\t\t${params[3]}"
  49     echo "}"
  50 }
  51
  52 #define service {
  53 #       use                      http-vhost2
  54 #       description              www.defectivebydesign.org
  55 #       host_name                www0.defectivebydesign.org
  56 #       check_command            check_http_vhost2!www0.defectivebydesign.org!www.defectivebydesign.org
  57 #}
  58
  59 # Service: SSL CERT
  60 #define service{
  61 #       use                      http-vhost
  62 #       host_name                www0.defectivebydesign.org
  63 #       description      www.defectivebydesign.org SSL cert
  64 #       check_command            check_ssl_cert!www.defectivebydesign.org
  65 #}
  66
  67 # Process our args
  68 while getopts "Ww:h:sc:" opt; do
  69     case "${opt}" in
  70         s)
  71             ssl=1
  72             ;;
  73         h)
  74             host=${OPTARG}
  75             ;;
  76         w)
  77             website=${OPTARG}
  78             ;;
  79         W)
  80             www=1
  81             ;;
  82         c)
  83             cnames=${OPTARG}
  84             cname=1
  85             ;;
  86         *)
  87             help
  88             exit 1
  89     esac
  90 done
  91
  92 # Print help and quit if website is not provided
  93 if [ -z ${website} ]; then
  94     help
  95     exit 1
  96 fi
  97
  98 # Set host_name to website if not provided
  99 if [ -z ${host} ]; then
 100     host=$website
 101 fi
 102
 103 # Prep CNAMEs (if provided) for a for loop by replacing the delimiter
 104 if [ $cname -eq 1 ]; then
 105     if [ -z ${cnames} ]; then
 106         echo "Error: CNAMEs garbled."
 107         exit 2
 108     fi
 109     cnames=$(echo $cnames | sed 's/,/ /g')
 110 fi
 111
 112
 113 # Basic HTTP check, include basic header
 114 set-http-params $website $host
 115 write-config-header
 116 write-config-body
 117
 118 # Additional CNAMEs if requested
 119 if [ $cname -eq 1 ]; then
 120     for name in $cnames; do
 121         set-http-params $name.$website $host
 122         write-config-body
 123     done
 124 fi
 125
 126 # SSL cert check, if requeted
 127 if [ $ssl -eq 1 ]; then
 128     set-https-params $website $host
 129     write-config-body
 130 fi
 131
 132 # Write out our footer
 133 write-config-footer