#!/bin/bash

# This script auto delete the current instance and ask the
# Autoscale Group to replace the node


###########################################################

CRED_FILE=/opt/autoscale/.credentials
AS_GRP_ID=a17b08b3-0c04-48e8-84a9-3070c29a27fa

###########################################################

# Gather info from credential file
USERNAME=$(grep username $CRED_FILE | awk -F= '{print $2}' | sed 's/ //g')
APIKEY=$(grep api_key $CRED_FILE | awk -F= '{print $2}' | sed 's/ //g')
REGION=$(grep region $CRED_FILE | awk -F= '{print $2}' | sed 's/ //g' | tr '[:upper:]' '[:lower:]')


SERVER_UID=$(xenstore-read name | sed 's/instance-//')

AUTH=$(
curl -sd \
"{
   \"auth\":
   {
        \"RAX-KSKEY:apiKeyCredentials\":
        {\"username\": \"$USERNAME\",
        \"apiKey\": \"$APIKEY\"}        }
}" \
-H 'Content-Type: application/json' \
'https://identity.api.rackspacecloud.com/v2.0/tokens' | python -m json.tool | grep -A 7 token | awk '/id/ { print $2 }' | tr -d '"' | tr -d ","
) 

TOKEN=$(echo $AUTH | awk '{print $1}')
ID=$(echo $AUTH | awk '{print $2}')


curl -sH "X-Auth-Token: $TOKEN" -H "Content-type: application/json" -X DELETE https://$REGION.autoscale.api.rackspacecloud.com/v1.0/$ID/groups/$AS_GRP_ID/servers/$SERVER_UID?replace=true