Enable Termination Protection on ec2 instances using bash

To prevent your instance from being accidentally terminated, you can enable termination protection for the instance.

Below is a simple bash script that will

Retrieve Running Instance IDs: Fetches a list of all running instance IDs in your AWS account.
Enable Termination Protection: Loops through each retrieved instance ID and enables termination protection.

#!/bin/bash

# Get a list of all running instance IDs
INSTANCE_IDS=$(aws ec2 describe-instances --filters "Name=instance-state-name,Values=running" --query "Reservations[*].Instances[*].InstanceId" --output text --profile PROFILE_NAME)

# Loop through each instance ID and enable termination protection
for instance_id in $INSTANCE_IDS
do
  echo "Enabling termination protection for instance: $instance_id"
  aws ec2 modify-instance-attribute --instance-id "$instance_id" --disable-api-termination --profile PROFILE_NAME
done

echo "Termination protection enabled for all running instances."

AWS CLI Commands:

aws ec2 describe-instances : Retrieves information about instances based on specified filters. Here, it fetches running instances.
aws ec2 modify-instance-attribute : Sets termination protection (–disable-api-termination) for each instance ID obtained.

Instance ID Loop:

The script iterates through each instance ID in $INSTANCE_IDS. For each instance ID, it disables API termination to enforce termination protection.