Update Instance Type

change_instance_type.sh

#!/usr/bin/env bash

#
# This must be used with care and only knowing what you are doing.
# Eucalyptus cant be taken reponsible for bad usage of this script
#

NEWTYPE=$1
INSTANCE=$2

function check_instances()
{
    INS=`euca-describe-instances verbose | grep $INSTANCE | grep INST | awk '{print $2}'`;
    INS_STATE=`euca-describe-instances verbose | grep $INSTANCE | grep INST | awk '{print $6}'`;
    EMI=`euca-describe-instances verbose | grep $INSTANCE | grep INST | awk '{print $3}'`;
    EMI_TYPE=`euca-describe-images verbose | grep $EMI| awk '{print $9}'`
    echo $INS $EMI | $EMI_TYPE;
    if ! [ $EMI_TYPE == "ebs" ]; then echo "Your image must be a bf_EBS - Now exiting" ; exit 1 ; fi
    if ! [ $INS_STATE == 'stopped' ]; then echo "Your instance must be in a STOPPED state - Now Exiting" ; exit 1 ; fi
}

check_instances

NEWTYPE_QY="select id from cloud_vm_type where config_vm_type_name = '$NEWTYPE';"
NEWTYPE_ID=`psql -h /var/lib/eucalyptus/db/data -p 8777 -U root eucalyptus_cloud -c "$NEWTYPE_QY"`

NEWTYPE_ID=`echo $NEWTYPE_ID | awk '{print $3}'`

UPDATE_QY="update metadata_instances set metadata_vm_type_id = '$NEWTYPE_ID' where metadata_display_name = '$INSTANCE';"
UPDATE_GO=`psql -h /var/lib/eucalyptus/db/data -p 8777 -U root eucalyptus_cloud -c "$UPDATE_QY"`