added code to find out vault cluster leader.

#!/bin/bash

#!/bin/bash -e

# Check etcd cluster health and print out vault active server.

if [ "$ROUTE53_ZONE_NAME" = "vault.stanford.edu" ]

then

    VAULT_ADDR=https://vault.stanford.edu

else

    VAULT_ADDR=https://vault.itlab.stanford.edu

fi

leader=$(vault status --address=$VAULT_ADDR | grep -i "HA Cluster" | awk '{print $NF}' | sed -e 's%https:%http:%;s%:8201%%')

endpoint=${leader:$1}

endpoint=$1

if [ -z $endpoint ]

then

  echo "Endpoint is required. e.g. http://10.10.10.1"

echo ""

etcdctl --endpoint=$endpoint:2379 member list

echo "Vault leader is $leader."

 No newline at end of file