savi-deprovision-cluster

#!/bin/bash -f
# 
# This script deprovision the specified Hadoop cluster.
#
# Prerequisite:
# * Your Testbed's credentials was exported.
# * The target hadoop cluster was provisioned by using the savi-* script.

desc="This script deprovision the specified Hadoop cluster.
"

script_name=`basename $0`
usage="Usage:
1. ${script_name} <cluster_name>
2. ${script_name} help
"

if [[ -n "$1" && $1 == "help" ]]; then
    echo "${desc}"
    echo "${usage}"
    exit
fi

source /home/savitb/bin/functions

# Check Testbed's credential.
if [ -z "$OS_USERNAME" ]; then
    echo "The environment variable OS_USERNAME is not set."
    exit 1
fi

if [ -z "$OS_PASSWORD" ]; then
    echo "The environment variable OS_PASSWORD is not set."
    exit 1
fi

if [ -z "$OS_AUTH_URL" ]; then
    echo "The environment variable OS_AUTH_URL is not set."
    exit 1
fi

if [ -z "$OS_TENANT_NAME" ]; then
    echo "The environment variable OS_TENANT_NAME is not set."
    exit 1
fi

if [ -z "$OS_REGION_NAME" ]; then
    echo "The environment variable OS_REGION_NAME is not set."
    exit 1
fi

if [[ -n "$1" ]]; then
    cluster_name=$1
else
    echo "Error: the required argument was missing."
    echo ""
    echo "${usage}"
    exit 1
fi

cluster_template_name=${cluster_name}-template
master_template_name=${cluster_name}-master
worker_template_name=${cluster_name}-worker
secgroup_name=${cluster_name}

blue_desc_title "  Deprovisioning the cluster"

# Delete the cluster.
if sahara cluster-list | grep "${cluster_name}" >/dev/null; then
    command="sahara cluster-delete --name ${cluster_name}"
    yellow_desc "${command}"
    eval ${command}
fi

# Delete the cluster template.
if sahara cluster-template-list | grep "${cluster_template_name}" >/dev/null; then
    command="sahara cluster-template-delete --name ${cluster_template_name}"
    yellow_desc "${command}"
    eval ${command}
fi

# Delete the worker node group template.
if sahara node-group-template-list | grep "${worker_template_name}" >/dev/null; then
    command="sahara node-group-template-delete --name ${worker_template_name}"
    yellow_desc "${command}"
    eval ${command}
fi

# Delete the master node group template.
if sahara node-group-template-list | grep "${master_template_name}" >/dev/null; then
    command="sahara node-group-template-delete --name ${master_template_name}"
    yellow_desc "${command}"
    eval ${command}
fi

# Delete the security group.
# We wait 10 seconds here, because the VMs that used this security group need to be completely shutdown.
sleep 10
if nova secgroup-list | grep "${secgroup_name}" >/dev/null; then
    command="nova secgroup-delete ${secgroup_name}"
    yellow_desc "${command}"
    eval ${command}
fi

echo ""
blue_desc "Cluster was deprovisioned."