Quick hack to check apache is running and responding, and start/restart if not

check_apache.sh

#!/bin/bash

PS_NAME=apache2
CHECK_URL=http://localhost/
MAX_TRIES=5

apache_running() {
  ps -eo pid,comm | fgrep $PS_NAME > /dev/null 2>&1
}

apache_responding() {
  wget --quiet --spider --timeout=5 $CHECK_URL
}

if ! apache_running; then
  echo "Apache server not running, starting!"
  service apache2 start
  exit 1
fi

try_count=0
while [ $try_count -le $MAX_TRIES ]; do
  if apache_responding; then
    exit 0
  fi
  try_count=$[$try_count+1]
  sleep 5
done

echo "Apache failed to respond after $MAX_TRIES attempts, restarting!"
service apache2 restart
exit 1