koha-status

#!/bin/bash
# ------------------------------------------------------------------
# Author: Lennon Mazonde
# GitHub: @grandmaestr
# Title: koha-status
# Description: 
#       This script checks instance health, returning a 200 OK if the OPAC and Staff URL configured in the Apache configs are alive.
# 	You can copy and paste this script onto your server and make it executable by running "chmod a+x /path/to/file_name"
# 	To run the script, simply go to "/path/to/file_name" or if it's in your home directory, run "file_name"  in the CLI.
# 	This script is interactive, so you'll be prompted for input at various stages.
# 	You can modify or use this script however you like but I'd really appreciate it if you give me a shout out or attribution if you post it elsewhere :)

# ------------------------------------------------------------------
set -e
# set -x

# Script version
VERSION=0.1.0
# Set the name of the script to variable
SCRIPT_NAME="$(basename ${0})"

# ------Help--------------------------------------------------------
Help(){
    # Display Help
    cat <<EOF
        Usage: $SCRIPT_NAME -ihv args

        Options:
        i - instanceid. The name of the koha instance. One instance id per option.
        h - help. Print this help.
        v - version. Print the script version.

        Example:
        To define a new staff or OPAC url for a single instance called "library", run:
            $SCRIPT_NAME -i library
        For multiple instances, run
                $SCRIPT_NAME -i library1 -i library2 ...
EOF
}
# --- Options processing -------------------------------------------
if [ $# == 0 ] ; then
    Help
    exit 1;
fi

while getopts ":i:vh" optname; do
    case "$optname" in
      v)
        echo "Version $VERSION"
        exit 0;
        ;;
      i)  
        instanceid+=("$OPTARG")
        ;;
      h)
        Help
        exit 0;
        ;;
      \?)
        echo "Unknown option $OPTARG"
        Help
        exit 0;
        ;;
      :)
        echo "Error: you must provide at least one instance name for option -$OPTARG"
        exit 0;
        ;;
      *)
        echo "Unknown error while processing options"
        Help
        exit 0;
        ;;
    esac
  done

shift $(($OPTIND - 1))

param1=$1
param2=$2

# --- Locks -------------------------------------------------------
LOCK_FILE=/tmp/$SUBJECT.lock
if [ -f "$LOCK_FILE" ]; then
   echo "Script is already running"
   exit
fi

trap "rm -f $LOCK_FILE" EXIT
touch $LOCK_FILE

# --- Body --------------------------------------------------------

# This script checks if the OPAC and Staff page URLs from your Apache config files are reachable

filename=$(tr -dc A-Za-z0-9 </dev/urandom | head -c 5)

for val in "${instanceid[@]}"; do
	sudo sed -n /ServerName/p /etc/apache2/sites-enabled/$val.conf | sed 's/ServerName//g' | sed 's/#//g' | awk '{$1=$1};1' >> /tmp/$filename.txt
done;
        echo "Checking the status of Koha instance $val"
while read url
do
        curl -LIs https://$url | head -n 1
        echo  " "
done < <(tr ' ' '\n' < /tmp/$filename.txt)

# Delete temp file
rm /tmp/$filename.txt