Improve check-url.sh script documentation

The script's usage message has been updated to reflect the correct functionality of the script. The previous message was incorrect and referred to disk usage instead of checking if a URL is available.

check-url.sh

@@ -5,7 +5,7 @@
 #/ Usage:
 #/ check-url.sh --proxy=<proxy-url> --warning=<level> --critical=<level> <URL>
 #/ 
-#/ Checks the disk usage
+#/ Checks if URL is available
 #/ 
 #/ Options:
 #/  -p, --proxy=<proxy-url>  The proxy server to use

check-webcron.sh

@@ -0,0 +1,137 @@
+#!/bin/bash
+
+#
+#/
+#/ Usage:
+#/ check-webcron.sh --proxy=<proxy-url> [--daemon] --warning=<level> --critical=<level> <URL>
+#/ 
+#/ Checks webcron jobs
+#/ 
+#/ Options:
+#/  -p, --proxy=<proxy-url>  The proxy server to use
+#/  -d, --daemon             When no daemon is running trigger a critical warning
+#/  -w, --warning=<ratio>    The ratio of failed jobs to trigger a warning (1 = all jobs; 0.5 = half of all jobs)
+#/  -c, --critical=<ratio>   The ratio of failed jobs to trigger a critcal warning (1 = all jobs; 0.5 = half of all jobs)
+#/ 
+#/ Exit Codes:
+#/  0 Everything OK
+#/  1 Warning level exceeded
+#/  2 Critical level exceeded
+#/  3 Unknown status
+#/
+
+
+Usage() {
+    grep '^#/' "${script_dir}/${script_name}" | sed 's/^#\/\w*//'
+}
+
+GetOptions() {
+    # https://stackoverflow.com/a/29754866
+    OPTIONS=p:dw:c:
+    LONGOPTS=proxy:,daemon,warning:,critical:
+
+    # -use ! and PIPESTATUS to get exit code with errexit set
+    # -temporarily store output to be able to check for errors
+    # -activate quoting/enhanced mode (e.g. by writing out “--options”)
+    # -pass arguments only via   -- "$@"   to separate them correctly
+    ! PARSED=$(getopt --options=$OPTIONS --longoptions=$LONGOPTS --name "$0" -- "$@")
+    if [[ ${PIPESTATUS[0]} -ne 0 ]]; then
+        # e.g. return value is 1
+        #  then getopt has complained about wrong arguments to stdout
+        Usage
+        exit 2
+    fi
+
+    # read getopt's output this way to handle the quoting right:
+    eval set -- "$PARSED"
+
+    # now enjoy the options in order and nicely split until we see --
+    while true; do
+        case "$1" in
+            -p|--proxy)
+                proxy="$2"
+                shift 2
+                ;;
+            -d|--daemon)
+                shift 1
+                ;;
+            -w|--warning)
+                warn="$2"
+                shift 2
+                ;;
+            -c|--critical)
+                crit="$2"
+                shift 2
+                ;;
+            --)
+                shift
+                break
+                ;;
+            *)
+                echo "URL UNKNOWN - ${1} is not a valid parameter"
+                exit 3
+                ;;
+        esac
+    done
+
+    if [ -z ${1+x} ]; then 
+        echo "URL UNKNOWN - url not given"
+        exit 3
+    else 
+        url="${1}/health"
+    fi
+}
+LC_NUMERIC="C"
+warn=0.05
+crit=0.1
+script_name=$(basename "${0}")
+script_dir=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )
+url=''
+GetOptions "$@"
+
+eval $(curl -L -o /dev/null -s -w 'RESPONSE_CODE=%{response_code}' ${proxy:+"--proxy" "$proxy"} $url)
+health=$(curl -s ${proxy:+"--proxy" "$proxy"} $url)
+deamonrunning=$(echo $health | jq '.DaemonRunning')
+jobstotal=$(echo $health | jq '.JobsTotal')
+jobsdue=$(echo $health | jq '.JobsDue')
+jobsrunning=$(echo $health | jq '.JobsRunning')
+jobsfailing=$(echo $health | jq '.JobsFailing')
+
+val=$(echo "$jobsfailing/$jobstotal" | bc -l)
+
+rdetail=""
+if (( $(echo "$RESPONSE_CODE != 200" | bc -l) )); then
+    rval=2
+    rmsg="CRITICAL"
+    rdetail="$url was not available"
+elif [[ $deamonrunning != "true" ]]; then
+    rval=2
+    rmsg="CRITICAL"
+    rdetail="Daemon is not running"
+elif (( $(echo "$jobsdue > 0" | bc -l) )); then
+    rval=1
+    rmsg="WARNING"
+    rdetail="You have jobs to be run"
+elif (( $(echo "$val < ${warn}" | bc -l) )); then
+    rval=0
+    rmsg="OK"
+elif (( $(echo "$val < ${crit}" | bc -l) )); then
+    rval=1
+    rmsg="WARNING"
+else
+    rval=2
+    rmsg="CRITICAL"
+fi
+unitval=''
+warnval=$warn
+critval=$crit
+minval=0
+maxval=1
+
+unitfail='jobs'
+warnfail=$(echo ${jobstotal}\*${warn} | bc -l | awk '{ print int($1+0.5) }')
+critfail=$(echo ${jobstotal}\*${crit} | bc -l | awk '{ print int($1+0.5) }')
+minfail=0
+maxfail=$(echo ${jobstotal})
+echo "URL ${rmsg} - ${rdetail:+"$rdetail - "}Response code: ${RESPONSE_CODE} Jobs Total: ${jobstotal} Jobs Due: ${jobsdue} Jobs Running: ${jobsrunning} Jobs Failing: ${jobsfailing}|val=${val}${unitval};$warnval;$critval;$minval;$maxval failing=${jobsfailing}${unitfail};$warnfail;$critfail;$minfail;$maxfail "
+exit $rval