summaryrefslogtreecommitdiffstats
path: root/lib/nagios
diff options
context:
space:
mode:
Diffstat (limited to 'lib/nagios')
-rwxr-xr-xlib/nagios/nagios.sh125
1 files changed, 125 insertions, 0 deletions
diff --git a/lib/nagios/nagios.sh b/lib/nagios/nagios.sh
new file mode 100755
index 0000000..40631c1
--- /dev/null
+++ b/lib/nagios/nagios.sh
@@ -0,0 +1,125 @@
+cd $(dirname "$0")
+
+. setup/parameters.sh
+
+function nagios_find_host {
+ echo "$@" | grep -oP '\-H\s*\K[^\s]*'
+}
+
+function find_host_param {
+ local id="$1" && shift
+ local pname="$1" && shift
+ local defval="$1" && shift
+
+ local val=$(cat setup/${pname}.txt | grep -P "^$id" | awk '{ print $2 }')
+ [ -n "$val" ] || val="$defval"
+
+ echo -n "$val"
+}
+
+function nagios_find_host_param {
+ local pname="$1" && shift
+ local defval="$1" && shift
+ local host=$(nagios_find_host "$@")
+
+ find_host_param "$host" "$pname" "$defval"
+}
+
+function resolve_fqdn {
+ local host="$1" && shift
+
+ if [[ ! $host =~ \. ]]; then
+ local domain=$(find_host_param "$host" domains "$default_domain")
+ host+=".$domain"
+ fi
+
+ echo -n $host
+}
+
+function resolve_ip {
+ local host="$1" && shift
+
+ if [[ ! "$host" =~ ^[[:digit:]] ]]; then
+ local fqdn=$(resolve_fqdn "$host")
+ host=$(dig +short "$fqdn" A | head -n 1 | tr -d '\n')
+ if [ $? -ne 0 -o -z "$host" ]; then
+ echo "DNS resolution for host ($fqdn) failed: $(dig +short "$fqdn" A 2>&1)"
+ exit 2
+ fi
+ fi
+
+ echo -n "$host"
+}
+
+function nagios_run {
+ if [[ "$1" =~ ^- ]]; then
+ cmd=${nagios_plugins}/$(basename $0)
+ else
+ cmd=$1 && shift
+ [[ "$cmd" =~ ^/ ]] || cmd="${nagios_plugins}/$cmd"
+ fi
+
+ ARGS=""
+ while [[ $# -gt 0 ]]; do
+ key="$1" && shift
+
+ case "$key" in
+ -H)
+ host="$1" && shift
+ ip=$(resolve_ip "$host")
+ if [ $? -eq 0 -a -n "$ip" ]; then
+ ARGS+=" ${key} $ip"
+ else
+ echo "$ip"
+ exit $?
+ fi
+ ;;
+ *)
+ ARGS+=" $key"
+ esac
+ done
+
+ [ -n "$debug" ] && echo "$(date) $cmd" "$ARGS" >> /tmp/nagios.log
+ eval "$cmd" "$ARGS"
+}
+
+function nagios_parse {
+ cmd="$1"; shift
+
+ output=$($cmd "$@")
+ exit_code=$?
+
+ if [ $exit_code -eq 0 ]; then
+ last_line=$(echo "$output" | tail -1)
+
+ status=$(echo $last_line | cut -d ' ' -f 1)
+ [[ "$status" =~ ^[0-9]$ ]] || status=0
+ echo -n ${last_line#$status}
+ else
+ status=0
+ fi
+
+ if [ $status -ne 1 ]; then
+ echo -n " -- "
+
+ lines=$(echo "$output" | sed '/^[[:space:]]*$/d' | wc -l)
+ if [ $lines -gt 1 ]; then
+ echo "$output" | sed '/^[[:space:]]*$/d' | head -n 1 | tr -d '\n'
+ echo " ... "
+ echo "------------------"
+ echo "$output" | head -n -1
+ else
+ echo "$output" | sed '/^[[:space:]]*$/d' | head -n -1
+ fi
+ else
+ echo
+ fi
+
+ if [ "$status" -eq 0 ]; then
+ exit "2"
+ elif [ "$status" -eq 1 ]; then
+ exit "0"
+ else
+ exit "1"
+ fi
+}