Renew all of your Amazon aws EC2 Fleet IP addresses by rebooting all of them by Tag:key=value using

renew-amazon-ec2-ips-by-tag.sh

#!/bin/bash

ACCESS_KEY=ADD_YOUR_KEY
SECRET_KEY=ADD_YOUR_SECRET

echo "########################################################";
echo "IP Renewal Scheduler at $(date)";
echo "########################################################";
echo "";

# The tag used in the EC2 instances
TAG="type=consumer"

consumers=$(ec2-describe-instances --filter tag:$TAG --region sa-east-1 | grep 'INSTANCE' | awk '{print $2}')
consumersArray=($consumers)
numberOfConsumers=${#consumersArray[@]}

echo "=====> There are $numberOfConsumers consumers"
echo $consumers
echo "================================================"
echo ""

# Search all the instances with the tag "type=consumer" http://docs.aws.amazon.com/AWSEC2/latest/CommandLineReference/ApiReference-cmd-DescribeInstances.html
for INSTANCE in $consumers;
do
   echo "* Stopping instance ${INSTANCE} at $(date)";
   overallStart=`date +%s`
   start_time=`date +%s`

   # Execute the stop of the instance...
   ec2-stop-instances -O ${ACCESS_KEY} -W ${SECRET_KEY} --region sa-east-1 ${INSTANCE}

   # Monitor the status of the machine till it is stopped.
   while [ 1 ]; do
     # http://www.cyberciti.biz/faq/finding-bash-shell-array-length-elements/ () makes it an array
     tokens=($(ec2-describe-instances --filter "instance-id=$INSTANCE" --region sa-east-1 | grep "INSTANCE"))
     size=${#tokens[@]}
  
     # When the machine is not running, it will show 23 columns
     if [[ $size = 21 ]]; then
       status=$(ec2-describe-instances --filter "instance-id=$INSTANCE" --region sa-east-1 | grep "INSTANCE" | awk '{print $5}')
     fi
     # INSTANCE i-xxxxxx ami-7f1c8d62 ec2-xxx-233-xxx-114.xx-east-1.compute.amazonaws.com ip-xxx-xxx-22-126.sa-east-1.compute.internal 
     #  stopping 44ddddds 0 t2.medium 2015-10-22T08:52:38+0000 sa-east-1c monitoring-disabled xxx.xxx.78.xxx xxx.31.22.xxx 
     #  vpc-0cb7da69 subnet-6b031a2d ebs hvm xen AyziH1445487939809 sg-1f91177a default false
     if [[ $size = 23 ]]; then
       status=$(ec2-describe-instances --filter "instance-id=$INSTANCE" --region sa-east-1 | grep "INSTANCE" | awk '{print $6}')
     fi

     echo "-> Status is $status..."
     if [[ "$status" = "stopped" ]]; then
       end_time=`date +%s`
       stop_time="$(($end_time - $start_time))"
       echo "[x] Server completely stopped in $stop_time sec"
       echo ""
       break
     fi
     sleep 1
   done

   echo "* Starting instance ${INSTANCE} at $(date)";
   start_time=`date +%s`
   
   # Execute the start of the instance again
   ec2-start-instances -O ${ACCESS_KEY} -W ${SECRET_KEY} --region sa-east-1 ${INSTANCE}
 
   while [ 1 ]; do
     tokens=($(ec2-describe-instances --filter "instance-id=$INSTANCE" --region sa-east-1 | grep "INSTANCE"))
     size=${#tokens[@]}

     # When the machine is , it will show 23 columns
     if [[ $size = 21 ]]; then
       status=$(ec2-describe-instances --filter "instance-id=$INSTANCE" --region sa-east-1 | grep "INSTANCE" | awk '{print $5}')
     fi

     if [[ $size = 23 ]]; then
       status=$(ec2-describe-instances --filter "instance-id=$INSTANCE" --region sa-east-1 | grep "INSTANCE" | awk '{print $6}')
     fi

     echo "-> Status is $status..."
     if [[ "$status" = "running" || $size = 23 ]]; then
       end_time=`date +%s`
       started_time="$(($end_time - $start_time))"
       echo "[v] Server completely running again in $started_time sec"
       break
     fi
     sleep 1
   done
   overallEnd=`date +%s`
   overallTime="$(($overallEnd - $overallStart))"
   echo ""
   echo "====> Complete IP renewal time in $overallTime sec"

   echo "";
   echo "######################################################";
   echo "";
done

xexecution.logs

root@xxxxxxx:/home/ubuntu# ./renew-amazon-ec2-ips-by-tag.sh
########################################################
IP Renewal Scheduler at Thu Oct 22 09:37:22 UTC 2015
########################################################

=====> There are 2 consumers
i-bb37806a i-b3378062
================================================

* Stopping instance i-bb37806a at Thu Oct 22 09:37:24 UTC 2015
INSTANCE    i-bb37806a    running    stopping
-> Status is stopping...
-> Status is stopping...
-> Status is stopping...
-> Status is stopping...
-> Status is stopping...
-> Status is stopped...
[x] Server completely stopped in 31 sec

* Starting instance i-bb37806a at Thu Oct 22 09:37:55 UTC 2015
INSTANCE    i-bb37806a    stopped    pending
-> Status is pending...
-> Status is pending...
-> Status is pending...
-> Status is pending...
-> Status is running...
[v] Server completely running again in 28 sec

====> Complete IP renewal time in 59 sec

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

* Stopping instance i-b3378062 at Thu Oct 22 09:38:23 UTC 2015
INSTANCE    i-b3378062    running    stopping
-> Status is stopping...
-> Status is stopping...
-> Status is stopping...
-> Status is stopping...
-> Status is stopped...
[x] Server completely stopped in 26 sec

* Starting instance i-b3378062 at Thu Oct 22 09:38:49 UTC 2015
INSTANCE    i-b3378062    stopped    pending
-> Status is pending...
-> Status is pending...
-> Status is pending...
-> Status is running...
[v] Server completely running again in 21 sec

====> Complete IP renewal time in 47 sec

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