Enter one or more instance IDs that you want to stop. You can terminate multiple clusters at the same time. The hourly price for a Spot Instance is called a Spot price. It offers more extensive support, where the. I want to change the config of EC2 instance that created by Elastic BeanStalk, but when I stop instance ( from EC2 --> Running instance --> Action) instead of stopping, the instance state change to terminated and after that go to pending and running, so I can't change instance type. Auto Scaling - is a web service designed to automatically launch or terminate Amazon Elastic Compute Cloud (Amazon EC2) instances based on user-defined policies,. Termination means deletion so please be cautious and I recommend using --dry-run and --no-dry-run commands for being safe side. To get started, first visit Amazon EC2 in the AWS Management Console, select an instance, and click the 'Create Alarm' button in the Monitoring tab that appears in the lower panel. Each version can have different launch parameters. --auto-scaling-group-name My_AutoScalingGroup. answered Jul 31, 2018 by Priyaj. # aws ec 2 terminate-instances – instance-ids i -0 aac 8 d 3 e 627 de 822. Once launched, you'll find the controls to stop and start the spot instance like normal. command from the AWS CLI to stop instances from a script. ec2 = boto3. Select the filter from the list. Attach an EBS volume to another EC2 instance from the terminated. g. Open the Billing and Cost Management console. If you use the Amazon EC2 console, a command line tool, or the Amazon EC2 API to reboot your instance, we perform a hard reboot if the instance does not cleanly shut down within a few minutes. If you are using an instance store backed instance, your only option will be to terminate. Terminating an instance permanently deletes it. When scaling-in, instances are terminated. Then, enter an email address to notify, choose 'Stop' or. What happens to an instance differs if you stop it or terminate it. If you selected multiple clusters, then choose Turn off. This is all supported through AWS APIs, so you can do this through AWS Console or automating the configuration. Two points: this question needs official (from AWS itself) definitions of "terminate" and "stop". This feature helps you stop and start the instances or reboot them without worrying about Amazon EC2 Auto Scaling terminating the instances as part of its health checks or during scale-in events. When you launch an instances, a EBS Volume is assign to the instance(if it is a EBS base instance like t2. In the aws console, i only found the option to reboot or terminate my instance and hovering over the stop option said "Spot instance cannot be stopped". Amazon EBS-backed instances – The root device is an Amazon EBS volume. For more information, see Hibernating interrupted Spot Instances in the Amazon EC2 User Guide. It supports multiple EC2 instances at once. Hibernation saves the contents from the. Specifying this option with a PV instance can make it unreachable. For more information, see Create alarms that stop, terminate, reboot, or recover an instance. 4. EC2 Fleet and Spot Fleet. For more information, see Using an auto-termination policy. For more information, see Eventual consistency in the Amazon EC2 API Reference. --auto-scaling-group-name My_AutoScalingGroup. As you know, you can easily build highly scalable AWS applications that launch fresh EC2 instances on an as-needed basis. Stop or shut down all your EC2 instances and load balancers. New console. An instance was taken out of service in response to a EC2 health check indicating it has been terminated or stopped. Search for and choose the AWS-RestartEC2Instance action. Launch—Adds instances to the Auto Scaling group when the group scales out, or when Amazon EC2 Auto Scaling chooses to launch instances for other reasons, such as when it adds instances to a warm pool. How. At this time there is not a way to STOP and EMR cluster in the same sense you can with EC2 instances. by Srini. After you add a 24/7 instance to a layer, you must manually start the instance to launch the corresponding Amazon Elastic Compute Cloud (Amazon EC2 ) instance and manually stop it to terminate the Amazon EC2 instance. Pricing is per instance-hour consumed for each instance, from the time an instance is launched until it is terminated or stopped. The following code terminate an instance based on ID and Region. 终止或删除您不需要的 EC2 资源。 在您的账户上启动了新实例. You can also terminate an EC2 Instance using a command line or. On Ubuntu, you could set this up to happen in 55 minutes using: The difference is simply the caller of the function. You can restart your instance at any time. Amazon EC2 console. Reboot the instance from Windows "Start Menu" (or shutdown -r command in Linux) This will safely restart your EC2 instance. I would like the EC2 to stop once the script has run. The data on NVMe instance storage is encrypted using an XTS-AES-256 block cipher implemented in a hardware module on the instance. This operation is idempotent; if you terminate an instance more than once, each call succeeds. The script below will require instance ids. You can restart your instance at any time. For more information, see Hibernate your On-Demand Instance or Spot Instance. Ec2 also supports hibernating which is a quicker method of stopping/starting. In AWS ec2 we have shutdown behavior as stop or terminate my instance. It's easy to set Amazon CloudWatch alarms that detect and shut down idle Amazon EC2 instances. password protect, or even an additional confirmation) such that the typical means of instance termination (through the browser, cli, or library like boto3) would require an extra step to be followed. Provide a name for the new launch template, the Amazon Machine Image (AMI) to run, instance types, and other options. terminateというコマンドもあったので、違いをまとめておきます。. In this section, we are going to see how to terminate multiple EC2 instances at the same time using the AWS CLI command. You can restart your instance at any time. To specify which instances Amazon EC2 Auto Scaling should terminate first, choose a termination policy. Url to use to connect to EC2 or your Eucalyptus cloud (by default the module will use EC2 endpoints). Amazon takes care of it and also the IP address doesn't change on your instance. The automation document goes through the following steps. 1. Example: Work with Elastic IP addresses. To accomplish this, customers may have been required to manually attach an IAM instance profile on a per-instance basis or use. You can stop, start, and terminate EBS-backed instances. Ignored for modules where region is required. You should see the name of the region as it is deleted and a final done message when all the instances have been terminated. 15. Note the ec2_facts module needs to run on the instance (s) that you. For example, if you run an instance for 20 seconds and then stop it, we charge for a full one minute. EBS volumes are highly available and reliable storage volumes that can be attached to any running instance and used like a hard drive. Documentation: stop-instances — AWS CLI Command Reference. To get started, first visit Amazon EC2 in the AWS Management Console, select an instance, and click the 'Create Alarm' button in the Monitoring tab that appears in the lower panel. On the navigation bar at the top of the screen, choose the same Region that you used when you created the Auto Scaling group. The following code examples show how to terminate an Amazon EC2 instance. Search for CloudWatch Logs and give it ALL CLOUDWATCH LOGS actions. Even then you will be billed the committed amount of $1488 by AWS. 6. Volumes attached after instance launch continue running. If you stop an instance that is backed by EBS, the information on the root volume will still be in the same state when you start the machine again. If you want more practice, you could use the following to terminate the instances right from your IDE: import boto3. In this section, we are going to see how to terminate multiple EC2 instances at the same time using the AWS CLI command. You can only terminate instance store-backed. If the instance also gets stuck terminating, Amazon EC2 automatically forces it to terminate within a few hours. if you're using AWS Console, go to EC2 -> Instances -> Select the instances you want to terminate and use the Instance state button to terminate the selected instances. For a very short time, the ELB contains twice the usual amount of EC2 instances. To help expedite a resolution, include the instance ID, and describe the steps that you've already taken. 2. Choose the search field. Then, Actions -> Cancel Request. <instanceid> DISABLEAPITERMINATION True. 246k 25 390 481. If you specify an end time, the action stops repeating after this time. It supports multiple EC2 instances at once. txt. simple answer is - no you don't get charged for stopped EC2 instance. 诸如 Amazon EC2 Auto Scaling 和 AWS Elastic Beanstalk 这样的服务可以根据您配置它们的方式自动启动实例。 Amazon EC2 Auto Scaling helps to maintain your Amazon EC2 instance availability. 2 Answers. If termination protection is on. It can be enabled or disabled on a per instance basis at anytime. But I have a big list of instances that I need to terminate so I'm searching for a solution to. When state=running, state=stopped or state=restarted then either instance_ids or. Using TLS Termination. Improve this answer. Stop. Then, enter an email address to notify, choose 'Stop' or. Search for CloudWatch Logs and give it ALL CLOUDWATCH LOGS actions. First, find the description and cause for the instance's termination: Open the Amazon EC2 console. Terminated instances remain visible after termination (approximately one hour). You can use the AWS Command Line Interface (AWS CLI) to launch, list, and terminate Amazon Elastic Compute Cloud (Amazon EC2) instances. Posted On: May 24, 2022. You can add the stop, terminate, or reboot, actions to any alarm that is set on an Amazon EC2 per-instance metric, including basic and detailed monitoring metrics provided by Amazon CloudWatch (in the AWS/EC2 namespace), in addition to any custom metrics that include the "InstanceId=" dimension, as long as the InstanceId value refers to a valid. The key difference between stopping and terminating an instance is that the attached bootable EBS volume will not be deleted. To filter a list of resources. the instance’s root device is the actual hard drive, it is "stuck" on the hardware, and the only thing you can do is terminate the instance. EBS volumes are flexible. Note however that before this will work, you need to manually create at least one stop, terminate, or reboot alarm using the Amazon EC2 or CloudWatch console to create the EC2ActionsAccess IAM role. PDF RSS. Reboot an Amazon EC2 instance. Your Amazon EC2 usage is calculated by either the hour or the second based on the size of the instance, operating system, and the AWS Region where the instances are launched. ’. I can think of one way to achieve this. And a more general way to title the question might be "When the OS tells its AWS instance to power down, what happens? Terminate? Stop? Something else?A Simpler Way To Replace Instance Hardware on EC2. Learn how Amazon EC2 provides your instances with public and private IP addresses and DNS hostnames. The instance will remain in a "running" state. After you remove load balancers and Elastic Load Balancing environments, you can stop or terminate Amazon EC2 instances. But when I get disconnected (the SSH session is closed) from the EC2 instance the process stops. You can copy snapshot to different region via AWS Management Console or AWS API calls. You can retrieve this by running the following command: aws ec2 describe-instances. Please be warned that there is no way to recover the terminated instances in AWS. Run shutdown -h now as root. FYI developer support is the greater of $29 or 3% of monthly AWS charges (in the US anyway). amazon-ec2 cloud Share Follow edited Mar 12 at 7:57 John Rotenstein 246k 24 390 481 asked Sep 19, 2016 at 12:24 Beyhan Gul 1,221 1 16 25 Add a comment 2. g. Choose Customize. The “stopped” state on EC2 indicates that an instance has been shut down and cannot be used. consists of one or more instance store volumes exposed as block devices. AWS AWS Cost Optimization Best practices Cloud Computing. By default, Amazon EC2 deletes all EBS volumes that were attached when the instance launched. How to Terminate EC2 instances using AWS CLI. <NAME> (substitute your Terraformed EC2 instance's name) command to destroy your instance. Start and stop detailed monitoring of an Amazon EC2 instance. If not set then the value of the EC2_URL environment variable, if any, is used. Choose Terminate. Add a comment. Our client has asked us to implement mTLS but I don't think that works if the ALB terminates TLS connections. An EC2 instance transitions between different states from the moment you create it all the way through to its termination. For a detailed example that walks you through how to create and use event rules, see Taking Advantage of Amazon EC2 Spot Instance Interruption Notices. Choose Create function, Author from scratch. response = ec2. Since I want to access to the EC2 instance from Lambda function, I will attach “Amazon EC2 Full Access” policy. Canceling spot requests is good if you have created a 'persistent' spot instance. Check the latest instance-controller logs and instance state logs when the instance-controller service is down. An Amazon EC2 Dedicated Host is a physical server fully dedicated for. For example, you may remove a production environment from service, or manage short-lived. The following code examples show how to terminate an Amazon EC2 instance. The following code terminate an instance based on ID and Region. Feb 3, 2021 at 22:06. example. EC2 instances can be launched by choosing between AMIs. Step 2: Find the Instance ID. You can only terminate instance store-backed instances. BTW, You can store the snapshot in AWS S3 bucket for backup purposes. aws autoscaling delete-auto-scaling-group --auto-scaling-group-name <asg name> --force-delete. Terminate (delete) all. Select an operator, for example, = (Equals). AWS AWS Cost Optimization Best practices Cloud Computing. To terminate your active resources for some commonly used AWS services, do the following: Amazon EC2. Terminate an InstanceInstance store-backed instances – The root device is temporary. As mentioned in the comments, I suggest working with AWS Powershell Module. EBS volumes are highly available and reliable storage volumes that can be attached to any running instance and used like a hard drive. Terminated instances remain visible after termination (approximately one hour). You can only terminate instance store-backed. Terminate interrupted Spot Instances. The valid values are. Action examples are code excerpts from larger programs and must be run in context. Stopping is different from terminating; you can’t re-start a terminated instance. Action examples are code excerpts from larger programs and must be run in context. AWS Savings plans also have. You can still sign in and file an AWS Support case, or contact Support for 90 days. If not set then the value of the EC2_URL environment variable, if any, is used. terminateというコマンドもあったので、違いをまとめておきます。. This option is supported only for HVM instances. ラインインターフェイス、または API を使用して、インスタンスを終了できます。Amazon EC2. You can stop an Amazon EBS-backed instance, but not an Amazon S3-backed instance. It is akin to shutting down the instance and removing it entirely from your AWS account. The Auto Scaling group responds to a scale-out event and begins launching an instance. Stop and terminate instances. Click on the instance and select the Terminate option. From Interruption behavior, choose an interruption behavior. Search for jobs related to Aws ec2 stop vs terminate or hire on the world's largest freelancing marketplace with 22m+ jobs. Launch, scale, and manage Spot Instances with ease through AWS services or integrated third parties. Document Conventions. Inside the Compute Environment Parameters documentation for AWS Batch, there is a definition of State. Sau khi "stop", chúng ta có thể quay trở lại và khởi động máy trên AWS. If you terminate the machine without taking a snapshot, even if it is backed by EBS, the storage inside the ephemeral disk will be lost. To learn more, see the following resources: Amazon EC2: Amazon EC2 product page, Amazon EC2. If you do this, the instance is deleted, never. PDF RSS. On the Create on-demand backup page, choose the following options:. The console might organize resources according to the Name tag, but this tag doesn't have any semantic meaning to the Amazon EC2 service. resource ('ec2') ids = ['string'] #insert instance ids separated by commas. The size appears after the full stop. Amazon EC2 instances that use an Amazon Elastic Block Store volume as the root device can be stopped or terminated, whereas instances that use the instance store as the root. If an instance in an Auto Scaling group fails a health check, it will be. You can select. The RAM contents are reloaded. Yes, you can run a shell-script on your terminating EC2 instance using AWS Systems manager. Stop or shut down all your EC2 instances and load balancers . Then, select your instance's group. It's free to sign up and bid on jobs. So you can force the creation of the tag with a specific value on new instances, and then also limit the access levels of the user to start/stop/terminate them:It also remove old instances and stop them. is located on the disks that are physically attached to the host computer. 2. Terminate EC2 instance using command line API. EC2: Start or stop instances based on tags; EC2: Start or stop for matching tags; EC2: Full access within a Region (includes console) EC2: Start or stop an instance, modify security group (includes console) EC2: Requires MFA (GetSessionToken) for operations; EC2: Limit terminating instances to IP range; IAM: Access the policy. An EC2 Fleet contains the configuration information to launch a fleet—or group—of instances. Stopping causes the instance to stop running (its status goes from running to stopping to stopped). You have full control over the instance's lifecycle—you decide when to launch, stop,. Otherwise he will be denied access. When an instance is terminated, the instance performs a normal shutdown, then the attached Amazon EBS volumes are deleted unless the volume’s deleteOnTermination attribute is set to false. However, once an instance starts shutting down, it's probably a little bit late to think about trying to preserve logs or export anything. The following procedure sets the threshold to 50% CPU utilization for the target instance. 2. Action examples are code excerpts from larger programs and must be run in context. You can now stop your Amazon EC2 Spot Instances backed by Amazon EBS and start them at will, instead of relying on the “Stop” interruption behavior to stop your Spot Instances when interrupted. Method 2: The alternate method to create a replacement instance using the console is given below. Or if Python is already preinstalled in that instance, you can write a small python script using Boto3 that terminates the instance 12 hours after the instance is launched. To allow users to view Elastic IP addresses in the Amazon EC2 console, you must grant users permission to use the ec2:DescribeAddresses action. If we start the EC2 instance, the data is restored on the EC2 instance. Go to IAM on your AWS and click “Policies” on the left side. For example, calls to the RunInstances, DescribeInstances, or CreateImage actions generate entries in the CloudTrail log files. Spot instances are up to 90% cheaper than On-Demand instances, which can significantly reduce your EC2 costs. You can add the stop, terminate, reboot, or recover actions to any alarm that is set on an Amazon EC2 per-instance metric, including basic and detailed monitoring metrics provided by Amazon CloudWatch (in the AWS/EC2 namespace), as well as any custom metrics that include the InstanceId dimension, as long as its value refers to a valid running. Limitations. If we start the EC2 instance, the data is restored on the EC2 instance. After you allocate the Dedicated Host, the Dedicated Host capacity is made available in your account immediately and you can start launching instances onto the Dedicated Host. Volumes attached after instance launch continue running. You would typically see some kind of notification from AWS if there were a hardware failure. Instance profiles. Auto-termination (after idle) - Create a cluster with an auto-termination policy that shuts down after a specified idle time. Click Create Role. aws ec2 reboot-instances --instance-ids INSTANCEID. Choose AWS Service and Lambda. You can create an EC2 Fleet, in which you specify the desired. [Amazon EC2 console] Use the launch instance wizard to specify the launch parameters. We use an Application Load Balancer behind which we have an nginx server. ec2 = boto3. Make sure you understand the difference before you start doing one or. – Amazon EBS volumes. Since I want to access to the EC2 instance from Lambda function, I will attach “Amazon EC2 Full Access” policy. In the navigation pane, select a resource type (for example, Instances ). The following is an example of the event for Spot Instance interruption. An auto-scaling group launches EC2 instances and it appears that instances that run roughly >24 hours begin to degrade in performance. To cancel all the jobs in your job queue that are in the RUNNABLE state,. In AWS, the EC2 ( Elastic cloud computing) instance is called a VM (Virtual Machine). 51 1 1. A Spot Instance is an instance that uses spare EC2 capacity that is available for less than the On-Demand price. When Amazon EC2 Auto Scaling responds to a scale-out event, it launches one or more instances. Posted On: Mar 19, 2020. You can add the stop, terminate, or reboot, actions to any alarm that is set on an Amazon EC2 per-instance metric, including basic and detailed monitoring metrics provided by Amazon CloudWatch (in the AWS/EC2 namespace), in addition to any custom metrics that include the "InstanceId=" dimension, as long as the InstanceId value refers to a valid. It consists of two parts: a number and letters. PDF RSS. The documentation states, "If the value is true, you can't terminate the instance through. You can create a CloudWatch alarm that monitors CloudWatch metrics for one of your instances. You can cancel it in order to prevent the instance from recreating. If you use AWS CloudTrail, then using Amazon EC2 to reboot your instance also creates an API record of when your instance was rebooted. Attach the policy that we just created and hit “Create Role”. If you did not assign a specific termination policy to the group, Amazon EC2 Auto Scaling uses the default termination policy. Terminated instances remain visible after termination (for approximately one hour). Now that we have a basic understanding of EC2 instances, let's explore the. Go to IAM on your AWS and click “Policies” on the left side. client ('cloudwatch') cloudWatch. 5. Modify instance user data. You can specify that Amazon EC2 hibernates your Spot Instances when they are interrupted. 1. 0. EC2 Instance Store. A compute environment is in the Enabled state and can accept jobs from the queue. Notice, that the instance will retain its instance id after startup but will be given a different public IP address. There is also a flag that can be set on the instance as to how instance initiated shutdown is handled. My Termination Protection was set to Stop but apparently it overrides this setting. To begin using Dedicated Hosts, you must allocate Dedicated Hosts in your account using the Amazon EC2 console or the command line tools. You can add the stop, terminate, or reboot, actions to any alarm that is set on an Amazon EC2 per-instance metric, including basic and detailed monitoring metrics provided by Amazon CloudWatch (in the AWS/EC2 namespace), in addition to any custom metrics that include the "InstanceId=" dimension, as long as the InstanceId value refers to a valid. 2 Answers. After that, hit “Create Policies”. Note that Amazon EC2 Auto Scaling terminates, rather than stops, unneeded instances. put_metric_alarm ( AlarmName = f'CPU_ALARM_. When you stop or hibernate an instance, we shut it down. "Stop" máy áo khi chúng ta muốn tạm thời ngừng hoạt động của máy. It's also one of the oldest services launched by AWS, as it was started in 2006. For an instance using an instance-store backed AMI, terminate the instance and launch a replacement. According to my requirement i should be able to stop that instance and restart it just the way we do it for on demand ec2-instances. However please note that for this to work, you must use the --force-delete argument the first time itself, if the ASG is already in a. You can only suspend an instance for up to 60 days. Terminate instances accepts multiple instance-ids at once. Instance C and Instance D fail to terminate because at least one of the specified instances in us-east-1b (Instance C) is enabled for termination protection. To perform action on multiple Instances, all the above 4 commands accept space separated list of Instance IDs as below: --instance-ids INSTANCEID 1 INSTANCEID 2 INSTANCEID 3. Amazon EC2 Dedicated Hosts allow you to use your eligible software licenses from vendors such as Microsoft and Oracle on Amazon EC2, so that you get the flexibility and cost effectiveness of using your own licenses, but with the resiliency, simplicity and elasticity of AWS. Terminated instances remain visible after termination (for approximately one hour). 6. Region: Enter the AWS region name where this instance is available. Default termination policy and mixed instances groups. Use this script to retrieve instance ID as well as availability zone and region, etc. AWS Systems Manager enables you to remotely and securely manage the configuration of your Amazon EC2 instances, and your on-premises instances and virtual machines (VMs) in hybrid environments, including VMs from other cloud providers. Using EC2 Fleet, you can:When your instance is in stopped/terminate state, you will NOT be billed for “data transfer” and “compute”, but you will be charged for storage (if any). If you try terminating a spot instance in the EC2 console when it's set as 'persistent', a new spot instance will spin up in its place in a few minutes. You can stop, start, and terminate EBS-backed instances. When an AWS Batch job in RUNNING state is terminated ( TerminateJob ), the backend handler concerning the termination event invokes a termination event. All Amazon EC2 actions, and Amazon EBS management actions, are logged by CloudTrail and are documented in the Amazon EC2 API Reference. Using EC2 Fleet, you can:When your instance is in stopped/terminate state, you will NOT be billed for “data transfer” and “compute”, but you will be charged for storage (if any). To help expedite a resolution, include the instance ID and describe. Ec2 Url: Enter the URL to connect to EC2. Suspending an instance differs from stopping an instance in the following ways: Suspended instances preserve the guest OS memory, device state, and application state. On the Create action page, choose an AWS Systems Manager document to define the service action. Any EBS volumes remain attached to the instance, and. The key difference between stopping and terminating an instance is that the attached bootable EBS volume will not be deleted. Yes, you can terminate any instance in the fleet. When you stop or terminate a Mac instance, Amazon EC2 performs a scrubbing workflow on the underlying Dedicated Host to erase the internal SSD, to clear the persistent NVRAM variables, and to update to the latest device firmware. You can do this from the EC2 console or CLI: aws autoscaling put-lifecycle-hook. Hold on to your data. , or hibernated and started, and is released when the instance is terminated. Be sustainable by leveraging unused EC2 capacity. Then in next pop up click on "Yes Disable" and then you can terminate the instance. Step 1: Create a CloudWatch alarm for a stop condition. --lifecycle-hook-name my-lifecycle-hook. This operation is idempotent; if you terminate an instance more than once, each call succeeds. but you might get charged for some other resources if they are attached to that stopped EC2 instance, like EBS volume, EIP address etc. PDF RSS. When prompted, choose Change to turn termination protection off. -2. To perform action on multiple Instances, all the above 4 commands accept space separated list of Instance IDs as below: --instance-ids INSTANCEID 1 INSTANCEID 2 INSTANCEID 3. Note that not all screens support selecting an operator. Instance reboot. If a user named richard-roe attempts to start an Amazon EC2 instance, the instance must be tagged Owner=richard-roe or owner=richard-roe. Rather than asking the Amazon EC2 service to terminate an instance, you can simply call the Operating System and tell it to Stop the instance:. AWS - Status check fails when loading AMI created from snapshot. Example : aws ec2 terminate-instances --instance-ids <i-. You can stop, start,. State: Select the state for the instance. During this process, we'd like to prevent the auto-scaling group from terminating random supernumerary instances. In this example, Python code is used perform several basic instance management operations. If, after 10 minutes, the instance has not stopped, post a request for help on AWS re:Post. Terminated instances remain visible after termination (for approximately one hour). We’re selecting AWS Service for Entity Type and ‘Lambda’ for Use Case. Below are the interview questions asked in major IT companies on EC2. amazon-ec2; aws-lambda; or ask your own question. On the Cluster List page, select the cluster or clusters to terminate. I want to know if I get charged for stopped EC2 instances. However I would really recommend scaling your ASG down to 0 and terminating the instances and relaunching them next day. Amazon EC2 Auto Scaling ensures that your application always has the right capacity to handle the traffic demand, and saves costs by launching instances only when they are. First, store your Spot Instance data in a database, such as Amazon Relational Database Service or Amazon DynamoDB -- or you can even use Amazon S3.