Must be specified for all other modules if region is not used. Spot can then fulfill your request by restarting instances from a stopped state when capacity is available within your price and time requirements. Ran into this problem today, and I was able force delete using the AWS CLI. Each partial instance-hour consumed is. This storage is located on disks that are physically attached to the host computer. Scheduling this task using Universal Controller workflow. You can see this action in context in the following code example: Get started with instances. Choose Create function, Author from scratch. Using Amazon EC2 reduces hardware costs so you can develop and deploy applications faster. Command to terminate an EC2 Instance: aws ec2 terminate-instances --instance-ids INSTANCEID. It is also possible to create secondary ENIs and attach them to instances. Description: Provide relevant details about the pipeline as needed. You can specify that Amazon EC2 hibernates your Spot Instances when they are interrupted. Volumes attached after instance launch continue running. Rebooting an instance is equivalent to rebooting an operating system. Adding a load balancer’s health checks to the ASG allows EC2 Auto Scaling to automatically replace instances that fail either their Amazon Elastic Compute Cloud (Amazon EC2) status checks or the. Choose Terminate. Because Spot Instances enable you to request unused EC2 instances at steep discounts, you can lower your Amazon EC2 costs significantly. Termination protection prevents an instance from accidental termination. To help expedite a resolution, include the instance ID and describe. Policy should look like below: Step 2. If you use AWS CloudTrail, then using Amazon EC2 to reboot your instance also creates an API record of when your instance was rebooted. How to Terminate EC2 instances using AWS CLI. 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. You can create a Network Load Balancer and make use of TLS termination in minutes! You can use the API ( CreateLoadBalancer ), CLI ( create-load-balancer ), the EC2 Console, or a AWS CloudFormation template. If you're using the Amazon EC2 API, the AWS CLI, or an AWS SDK, you. The following procedure sets the threshold to 50% CPU utilization for the target instance. There are a few ways to do this: Use the AWS Billing and Cost Management tool to identify under-used instances. --lifecycle-hook-name my-lifecycle-hook. 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. For more information, see Specify the interruption behavior. This topic describes how to temporarily disable a scaling policy so it won't initiate changes to the number of instances the Auto Scaling group contains. Add a comment. Search for and choose the AWS-RestartEC2Instance action. anchor anchor anchor anchor. Give your policy a name. PDF RSS. On the ‘Terminate Instances’ window, confirm by choosing ‘Yes, Terminate’. This will test that your infrastructure is configured correctly and will survive an instance failure. When scaling-out, new instances are launched into the Auto Scaling group. An IPv6 address persists when you stop and start, or hibernate and start, your instance, and is released when you terminate your instance. When you stop or hibernate an instance, we shut it down. Those are START, STOP, REBOOT, Terminate. For Linux instances backed by instance store, you can terminate and replace the instance. After select the policy, click “Next: Review” button. EBS volumes are flexible. EC2 (Elastic Compute Cloud) is the most widely-used compute service from AWS. You can stop, start, and terminate EBS-backed instances. You can also define a security group, which allows you to set up a virtual firewall for your instances. You can create a CloudWatch alarm that monitors CloudWatch metrics for one of your instances. PDF RSS. 3. Terminated instances remain visible after termination (for approximately one hour). Additionally, it uses an agent to connect, so trying to use the screen command would terminate when the agent terminates. Once an instance is terminated, you cannot recover it, and all data stored on its attached storage. It's also one of the oldest services launched by AWS, as it was started in 2006. 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. AWS EC2 stop all through PowerShell/CMD tools. Note the ec2_facts module needs to run on the instance (s) that you. For more information, refer to the SSM maintenance window field (p. Use this option to terminate all active connections for the specified user. This has the benefit of not needing to give the instance access to terminate ec2 via the AWS API. By default, Amazon EC2 deletes all EBS volumes that were attached when the instance launched. For an instance using an instance-store backed AMI, terminate the instance and launch a replacement. Notice, that the instance will retain its instance id after startup but will be given a different public IP address. AWS OpsWorks Stacks automatically starts and stops. update-auto-scaling-group →. Amazon Auto Scaling automatically manages your Amazon Elastic Compute Cloud (EC2) capacity. Method 2: The alternate method to create a replacement instance using the console is given below. The following stop-instances example hibernates Amazon EBS-backed instance if the instance is enabled for hibernation and meets the hibernation prerequisites. Yes, you can run a shell-script on your terminating EC2 instance using AWS Systems manager. When you stop and restart the instance, it launches quickly, because the state is stored in an EBS volume. In a single API call, a fleet can launch multiple instance types across multiple Availability Zones, using the On-Demand Instance, Reserved Instance, and Spot Instance purchasing options together. When an EC2 instance is Stopped, the virtual machine is removed and it loses the CPU, RAM and Instance store so that it can be allocated to another user. Give your policy a name. Terminate EC2 instance using command line API. If your instance is in an Auto Scaling group, the Amazon EC2 Auto Scaling service automatically launches a replacement instance. The user (or process) is then responsible for completing the lifecycle action via an AWS API call, resulting in the shutdown of the terminated EC2 instance. We would like to show you a description here but the site won’t allow us. Whether you are running one Amazon EC2 instance or thousands, you can use Amazon EC2 Auto Scaling to detect impaired Amazon EC2 instances, and replace the instances without intervention. Create a Role. Terminated instances remain visible after termination (for approximately one hour). For more information on what to expect when you switch to the old console, see Using the old console. Snapshot vs. Image: Enter the I(ami) ID to use for the instance. . 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. Without EBS volumes, the instance cannot exist in a stopped state. Access the Amazon EMR console. The following code examples show how to terminate an Amazon EC2 instance. Install-Module AWSPowerShell Import-Module AWSPowerShell #Set AWS Credential Set-AWSCredential -AccessKey "AccessKey" -SecretKey "SecretKey" #Remove EC2 Insatnace Remove. We would like to show you a description here but the site won’t allow us. When state=absent, instance_ids is required. 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. Following is from the same EC2 doc you have linked: Each time you start a stopped instance we charge a minimum of one minute for usage. 2. When you stop or hibernate an instance, we shut it down. 在导航窗格中选择 Bills （账单）。. Sorted by: 120. aws ec2 reboot-instances --instance-ids INSTANCEID. There are 2 type of termination policy in AWS Auto scaling group. While these terms may sound similar, they have distinct implications. Volumes attached after instance launch continue running. When an instance is stopped, the instance performs a normal shutdown and then transitions to a stopped state. The longest one was running for 3 days until I manually terminated it. If an instance becomes impaired because of an underlying hardware failure, the instance is automatically recovered. An EC2 instance transitions between different states from the moment you create it all the way through to its termination. Short description. You can use an EC2 Fleet or a Spot Fleet to launch a fleet of instances. The script below will require instance ids. 2. By default, Amazon EC2 deletes all EBS volumes that were attached when the instance launched. Using Amazon EC2 reduces hardware costs so you can develop and deploy applications faster. You can stop, start, and terminate EBS-backed instances. In a single API call, a fleet can launch multiple instance types across multiple Availability Zones, using the On-Demand Instance, Reserved Instance, and Spot Instance purchasing options together. Since I want to access to the EC2 instance from Lambda function, I will attach “Amazon EC2 Full Access” policy. Yes, can able to terminate an EC2 instance by executing the below command. Below are the interview questions asked in major IT companies on EC2. Amazon EC2 persists the instance's EBS root volume and any attached EBS data volumes. Any on-demand EC2 instance in a running state can be stopped: $ aws ec2 stop-instances --instance-ids instance_id. If your instance remains in the shutting-down state for several hours, Amazon EC2 treats it as a stuck instance and forcibly terminates it. Posted On: Jul 29, 2021. # aws ec 2 terminate-instances – instance-ids i -0 aac 8 d 3 e 627 de 822 a i. filter (InstanceIds = ids). Posted On: Mar 19, 2020. To create an AWS free tier account refer to Amazon Web Services (AWS) – Free Tier Account Set up. Note the Description and Cause for. Just to state the obvious for junior folks who might come across this: sudo shutdown now requires access to the operating system (via SSH keys, inbound security groups, etc), while aws ec2 stop-instances is an AWS CLI command which simply requires API authentication (via IAM credentials or STS tokens). One of the key decisions you need to make is whether to stop or terminate your EC2 instances. Step 3: choose Alarms then click Create Alarm. I could install the aws cli on the EC2 itself and run something like aws ec2 stop-instances --instance-ids i-07c1849fe7abcdef. BTW, You can store the snapshot in AWS S3 bucket for backup purposes. You may consider to run your script using AWS Data Pipeline. terminate ()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. An Amazon EC2 Dedicated Host is a physical server fully dedicated for. Posted On: Jan 13, 2020. According to AWS Support, it is normal behavior to Terminate an instance when you tell it to Stop if it is part of an Auto Scaling group. If you do this, the instance is deleted, never. An Amazon EC2 Auto Scaling group is designed to automatically scale so that extra instances can be added when there is a higher workload and instances can be removed when there is less workload. <NAME> (substitute your Terraformed EC2 instance's name) command to destroy your instance. The instance will remain in a "running" state. Select ‘Terminate’ under ‘Instance State’. TerminateJob is used when you want to stop all current and future job requests from running. Example: Work with Elastic IP addresses. 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. 1 Answer. Note: You cannot start/stop a Spot Instance. During this process, we'd like to prevent the auto-scaling group from terminating random supernumerary instances. The terminate_instances function is performed from the client, and requires you to specify the filter of which instances you need to terminate. However if we terminate an EC2 instance, then by default the root device volume also gets terminated. This can be stop or terminate. So far in our AWS posts we have learned if we stop the EC2 instance the data on the EBS volumes persists. 1. The code uses the AWS SDK for Python to manage the. To help expedite a resolution, include the instance ID and describe. 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. You can do this from the EC2 console or CLI: aws autoscaling put-lifecycle-hook. Within this environment, you can access an extensive range of pre-installed development tools , options for uploading and downloading files, and file storage that persists between sessions. Launch, scale, and manage Spot Instances with ease through AWS services or integrated third parties. If you stop or terminate all. Monitor instances with status checks to determine whether Amazon EC2 has detected any problems with your instances. once task is completed i will issue shutdown command inside my vm. The documentation states, "If the value is true, you can't terminate the instance through. AWS Terminate or delete the EC2 instance example using AWS CLI command. Pricing is per instance-hour consumed for each instance, from the time an instance is launched until it is terminated or stopped. To allow users to view Elastic IP addresses in the Amazon EC2 console, you must grant users permission to use the ec2:DescribeAddresses action. This is easier than temporarily deleting a policy when you don't need it, and recreating it later. To allow users to work with Elastic IP addresses, you can add the following actions to your policy. For more information, see Hibernating interrupted Spot Instances in the Amazon EC2 User Guide. All encryption keys are destroyed when the instance is stopped or terminated and cannot. 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. Reboot the instance from Windows "Start Menu" (or shutdown -r command in Linux) This will safely restart your EC2 instance. Open the Billing and Cost Management console. --auto-scaling-group-name My_AutoScalingGroup. To check whether you have active EC2 instances in other Regions, do the following: 1. And started again: $ aws ec2 start-instances --instance-ids instance_id. It looks to me from the docs and my testing that you are looking for: #aws ec2 describe-instance-attribute --instance-id <instanceid> --attribute disableApiTermination. May 21, 2021. A Spot Price is the hourly rate for a Spot instance. CancelJob is used when you want to clear the queue of any waiting jobs or stop a job from restarting if failed. State: Select the state for the instance. Click “Yes” to confirm. If you cancel a Spot Instance request, an EC2 Fleet, or a Spot Fleet, Amazon EC2 terminates any associated Spot Instances that are stopped. It's important to properly understand the implications of each action. You can restart your instance at any time. Choose Customize. 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. Share. This amount may exceed MAX instance count in the ELB for a very short duration. To force stop the instance, use the Amazon EC2 console or the AWS. Scheduled events - Amazon EC2 can schedule events (such as reboot, stop, or terminate) for your instances related to hardware issues, software updates, or system maintenance. Lambda code (set with IAM role AmazonEC2FullAccess): import boto3 def put_cpu_alarm (instance_id): cloudWatch = boto3. See full list on docs. Note By default, Amazon EC2 deletes the Amazon EBS root device volume at instance termination. Terminating an EC2 Instance: Terminating an EC2 instance permanently deletes the instance along with all associated data, configurations, and resources. For now, I just manually shutdown the instance via the AWS web interface. Also, you should be able to see the instance in the AWS console for a period of time, listed as terminated, and you can view the instance's system console. If you're using the ec2 command line tools, add the option: --instance-initiated-shutdown-behavior terminate. You can use Amazon EC2 to launch as many or as few virtual servers as you need, configure security and networking,. As you know, you can easily build highly scalable AWS applications that launch fresh EC2 instances on an as-needed basis. The possible values for instance-action are hibernate, stop, or terminate. This video will demonstrate how to terminate / delete / erase a virtual machine instance from the amazon AWS cloud. Amazon EC2 has two relevant actions: Stop means that the instance turns off but can be turned on again (like hitting the power button on a computer),. After creating an instance with that option, issuing the shutdown -h now command from within the instance will. Those are START, STOP, REBOOT, Terminate. Share. Create a Role. 停止 (Stop) と終了 (Terminate) を取り違えて Amazon EC2 インスタンスを誤って削除(終了)しないようにするために、インスタンスの「終了保護」を有効にできる。. The size appears after the full stop. 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 terminate an instance using the AWS Management Console or the command line. Previously,. Enter one or more instance IDs that you want to stop. Distribute the data on the instance stores across multiple AZs 2. Be sustainable by leveraging unused EC2 capacity. At this stage, the instance is preparing to enter the running state. Wait for Amazon EC2 to resolve the issue. Go to IAM on your AWS and click “Policies” on the left side. 1. I accidentally leaked my AWS keys on a git repo (still learning) and someone hacked into my AWS account, I am unable to stop and terminate the instance as it keeps coming up with the following error: The instance 'i-0e571b9423e63be86' may not be stopped. sudo shutdown now -h (The -h tells it to 'halt' the virtual hardware, which signals to the EC2 instance that the computer is now turned off, much like your home computer turns itself off after a. You can't use the Stop action to hibernate Spot Instances, but you can specify that Amazon EC2 should hibernate Spot Instances when they are interrupted. This will cause your instance to terminate instead of stop when the OS halts. You can stop, start, and terminate EBS-backed instances. The simple approach would be to have the instance call the AWS CLI terminate-instances command: aws ec2 terminate-instances --instance-ids i-xxxxxxxx. GwenM. 1. response = ec2. We’re selecting AWS Service for Entity Type and ‘Lambda’ for Use Case. AWS Savings plans also have. If it appears that your instance is stuck terminating and it has been longer than several hours, post a request for help to AWS re:Post. If you weren't taking EBS snapshots of the EC2 instance that contained critical data, then you were also using AWS incorrectly. PDF. New – Hibernate Your EC2 Instances. Here’re the four stages of a Virtual Machine-status. Earlier, you could. 1. aws opsworks stop-instance --region us-east-1 --instance-id 3a21cfac-4a1f-4ce2-a921. After you attach a volume to an instance, you can use it as you would use a physical hard drive. Choose the default AWS Service and then under common use cases select Lambda. On the dropdown labeled ‘Use Cases for other AWS Services’ and select ‘Lambda. When you store data, you prevent unnecessary losses in the event of AWS Spot Instance termination, and you can simply provision new ones and continue where. Stopping Amazon ec2 instance. Amazon EC2 uses an instance profile as a container for an IAM role. If termination protection is on. For each launch template, you can create one or more numbered launch template versions. 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. 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. Pricing is per instance-hour consumed for each instance, from the time an instance is launched until it is terminated or stopped. EBS vs. I would like the EC2 to stop once the script has run. It's easy to set Amazon CloudWatch alarms that detect and shut down idle Amazon EC2 instances. However I would really recommend scaling your ASG down to 0 and terminating the instances and relaunching them next day. You can’t use the Stop action to hibernate Spot Instances, but you can specify that Amazon EC2 should hibernate Spot Instances when they are interrupted. Run a Windows PowerShell script to remove the computer from the domain. To better understand the differences between the two volume types, see Storage options for your Amazon EC2 instances. answered Jul 31, 2018 by Priyaj. You can restart your instance at any time. Choose Bills in the navigation pane. The “stopped” state on EC2 indicates that an instance has been shut down and cannot be used. When you launch an instances, a EBS Volume is assign to the instance(if it is a EBS base instance like t2. but you might get charged for some other resources if they are attached to that stopped EC2 instance, like EBS volume, EIP address etc. 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. 打开 Billing and Cost Management console （账单和成本管理控制台）。. It selects the Availability Zone with two instances, and terminates the instance that was launched from the oldest launch. Warning: “Stopping” an instance is completely different from “terminating” an instance! When you terminate an EC2 instance, by default it deletes the EBS boot volume and other volumes that were created at run time. Choose the search field. You can force stop an EC2 instance when the instance appears to be stuck in the stopping or pending state. Auto Scaling is a web service designed to launch or terminate Amazon EC2 instances automatically based on user-defined policies, schedules, and health checks. 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:. You can use the AWS CLI to force stop the instance, instead of AWS console. Which to choose? Stop or Terminate an Amazon EC2 Instance: Which to Choose? | AWS for Beginners Tiny Technical. The attribute value. The lifecycle hook puts the instance into a wait state ( Pending:Wait) and then performs a custom action. Terminating an instance permanently deletes it. # aws ec 2 terminate-instances – instance-ids i -0 aac 8 d 3 e 627 de 822. Url to use to connect to EC2 or your Eucalyptus cloud (by default the module will use EC2 endpoints). For more information, see Hibernating interrupted Spot Instances in the Amazon EC2 User Guide. Launch an instance using the old launch instance wizard. You can now hibernate your newly launched instances running on T2 instance types. During periods of low utilization, instances are automatically terminated in order to save you money. Yes, you can terminate any instance in the fleet. EC2 Instance Store. If, after 10 minutes, the instance has not stopped, post a request for help on AWS re:Post. To delete terminated EC2 Instances, locate the instance you want to delete in the EC2 Console under the Instances page. By default, the instance remains in a. LIst the Stopped instances with. After that proceed with Create Policy. In this section, we are going to see how to terminate multiple EC2 instances at the same time using the AWS CLI command. For this project we will name it “stop_start_ec2instances”. Amazon Elastic Compute Cloud (Amazon EC2) provides on-demand, scalable computing capacity in the Amazon Web Services (AWS) Cloud. An instance store provides temporary or Ephemeral block-level storage for an Elastic Cloud Compute – EC2 instance. Hibernation is just like closing and opening your laptop lid, your application will start. Image: Enter the I(ami) ID to use for the instance. Key Features: This task uses Python Boto3 to interact with the AWS platform using the credentials supplied within the task. 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. Once you’ve selected “terminate,” you will receive a pop-up confirmation. 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. This event contains metadata about the job including the JobARN. Your compute environment will terminate if it is idle near the end of an AWS Billing Hour. You can only terminate instance store-backed. One of the key decisions you need to make is whether to stop or terminate your EC2 instances. Options ¶. 15. Action examples are code excerpts from larger programs and must be run in context. Manual termination - Create a long-running cluster that continues. 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. Note that not all screens support selecting an operator. 3. For more information, see Hibernating interrupted Spot Instances in the Amazon EC2 User Guide. 6. amazon-ec2; aws-lambda; or ask your own question. Khác với "stop", ch. Amazon EC2 now offers the same hibernation experience for Spot Instances as is currently available for On-Demand Instances. to terminate instance at address instance. Amazon EC2 Spot instances can now be stopped and started similar to On-Demand instances. Reserved Instances are not physical instances, but rather a billing discount applied to the use of On-Demand Instances in your account. The following code examples show how to stop an Amazon EC2 instance. Each version can have different launch parameters. Documentation: stop-instances — AWS CLI Command Reference. resource ('ec2') ids = ['string'] #insert instance ids separated by commas. 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 way I set this up, in short, is: Create a role that allows auto scaling to post a message to an SQS queue. To delete an EC2 instance using the CLI, you'll need its Instance ID. Explore the EC2 Instance Lifecycle. AWS Backup will use the SSH key pair used at the time of backup to automatically perform your restore. If the interruption behavior is hibernation,. For more information, see Compatibility for. 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. photo credit: Scott Beale via photopin cc ボーノです。. > --profile xxx. <instanceid> DISABLEAPITERMINATION True. --lifecycle-hook-name my-lifecycle-hook. Using TLS Termination. 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. ec2 = boto3. 7. If you selected multiple clusters, then choose Turn off. To help expedite a resolution, include the instance ID and describe. aws autoscaling delete-auto-scaling-group --auto-scaling-group-name <asg name> --force-delete. 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 volume will continue to persist in its availability zone. You can retrieve this by running the following command: aws ec2 describe-instances. consists of one or more instance store volumes exposed as block devices. When you stop or hibernate an instance, we shut it down. Select the AWS Region for your Amazon EMR cluster. 2. stopとterminateの違い stop インスタンスを一時的に停止させる。. 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. 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. EC2 -> Instances -> Spot Requests. Whether you require low-cost options for lightweight applications or high-performance instances for resource-intensive workloads, EC2 instances cater to diverse demands across industries. Auto Scaling - is a web service designed to automatically launch or terminate Amazon Elastic Compute Cloud (Amazon EC2) instances based on user-defined policies,. For EC2 instance store-backed instances AWS recommends to: 1.