healthcheck

#!/bin/bash

# get IP address of host machine on which docker runs
host_ip=$(nslookup ${HOSTNAME} | egrep -o "Address: ${LOCALSUBNET}\.[0-9]*" | egrep -o "${LOCALSUBNET}\.[0-9]*")

# calculate URN-UUID for WSD server
host_uuid=$(uuidgen --sha1 --namespace @dns --name ${HOSTNAME})

# generate URN-UUIDs to be used as the messageID and From
msg_uuid=$(uuidgen --time)
from_uuid=$(uuidgen)

# make request - the XML template is filled in certain spots with the relevant variables generated above
curl --silent --fail --header 'Content-Type: application/soap+xml' --data @- http://${host_ip}:5357/${host_uuid} > /dev/null <<EOF
<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope" xmlns:wsa="http://schemas.xmlsoap.org/ws/2004/08/addressing">
  <soap:Header>
    <wsa:To>urn:uuid:${host_uuid}</wsa:To>
    <wsa:Action>http://schemas.xmlsoap.org/ws/2004/09/transfer/Get</wsa:Action>
    <wsa:MessageID>urn:uuid:${msg_uuid}</wsa:MessageID>
    <wsa:ReplyTo>
      <wsa:Address>http://schemas.xmlsoap.org/ws/2004/08/addressing/role/anonymous</wsa:Address>
    </wsa:ReplyTo>
    <wsa:From>
      <wsa:Address>urn:uuid:${from_addr}</wsa:Address>
    </wsa:From>
  </soap:Header>
  <soap:Body></soap:Body>
</soap:Envelope>
EOF

# depending on success or failure, return either 0 or 1
if [ $? -eq 0 ]
then
  if [ "${DEBUG}" ==  "1" ]; then printf "%(%Y-%m-%d %T)T %s\n" -1 "- Healthcheck: wsdd responded OK" >> /proc/1/fd/1 ; fi
  exit 0
fi

printf "%(%Y-%m-%d %T)T %s\n" -1 "- Healthcheck: wsdd ERROR" >> /proc/1/fd/1

exit 1