Launch Multiple VMs

To launch multiple VMs you can use a command similar to the one below. Once the VMs are up-and-running, a hostname-to-IP address mapping file hostname2ip.txt is also created.

To launch 30 medium-sized VMs (2 CPUs, 8GB RAM) using the NXServer image using the keypair named my_keypair execute the following command:

NECTAR_IMAGE_ID='58cb2d08-325c-468d-93c6-877f9b327aed'
KEYPAIR_NAME='my_keypair'
NUMBER_OF_VMS=30
FLAVOR_SIZE=1

./instantiate_vms.sh \
  -i ${NECTAR_IMAGE_ID} \
  -k ${KEYPAIR_NAME} \
  -n ${NUMBER_OF_VMS} \
  -s ${FLAVOR_SIZE}

The NXServer image is based on Ubuntu 12.04 64bit but has been configured with an NX server. By default, these instantiated VMs will be named VM-??? where ??? is 001 - 030.

Generating NX Session Files

Generate the NX session files for all the VMs listed in the hostname2ip.txt file:

REMOTE_USERNAME='username'
REMOTE_PASSWORD='password'
xargs -L 1 -a <(awk 'BEGIN{OFS="\t"}{print " -i "$2 " -o "$1".nxs"}' < hostname2ip.txt) \
  ./generate_nx_session_file.sh \
    -t template.nxs \
    -u ${REMOTE_USERNAME} \
    -p ${REMOTE_PASSWORD}