VishaalY/solutions-architect-hf-dataset huggingface dataset:
Question: How do I use my own security group for my load balancer when I deploy an AWS Elastic Beanstalk application?

I want to create a load-balanced, auto-scaling environment type for my AWS Elastic Beanstalk application. I also want to specify my own security group for my load balancer.

Short descriptionElastic Beanstalk creates a default security group for your load balancer. You can override this default behavior if you have an existing security group (also called a ManagedSecurityGroup) that you want to attach to your load balancer. To prevent Elastic Beanstalk from creating a default security group, you must add one or more configuration files to a .ebextensions directory. The directory is in your application deployment package.Important: The following steps apply only to Application Load Balancers and Classic Load Balancers. Network Load Balancers don't have an associated security group.

ResolutionUse .ebextensions to instruct the Elastic Beanstalk service to attach an existing security group to your load balancer. Then, remove the default security group that Elastic Beanstalk creates for you.1.    Confirm that you have an existing security group for Elastic Beanstalk to use. Or, create a new security group for the load balancer in your Elastic Beanstalk environment.2.    Note the ID of your security group. For example: sg-1234563.    Create a .ebextensions/ directory in your local application code directory.Note: For more information, see Advanced environment customization with configuration files (.ebextensions).4.    In the .ebextensions/ directory, create a file named elbsg.config. For example:~/workspace/my-app/├── .ebextensions│   ├── elbsg.config├── helloworldNote: For more information, see Advanced environment customization with configuration files (.ebextensions).5.    Update the elbsg.config file based on the load balancer type of your Elastic Beanstalk environment.To create a new environment or update an existing environment with a Classic Load Balancer, use the SecurityGroups setting to override the default security group. For example:option_settings: aws:elb:loadbalancer:  ManagedSecurityGroup: "sg-123456"  SecurityGroups: "sg-123456"To create a new environment or update an existing environment with an Application Load Balancer, use the SecurityGroups setting to override the default security group. For example:option_settings: aws:elbv2:loadbalancer:  ManagedSecurityGroup: "sg-123456"  SecurityGroups: "sg-123456"Note: In the preceding examples, replace sg-123456 with your security group and managed security group. The preceding .ebextensions are in YAML format. Be sure to validate the YAML formatting.6.    Deploy your code and the new .ebextensions/ directory together as a new application version in your Elastic Beanstalk environment.After deployment, your security group is attached to the load balancer. Your environment and load balancer are now using your existing security group instead of the default load balancer security group.

Related informationConfiguring Elastic Beanstalk environmentsaws:elb:loadbalanceraws:elbv2:loadbalancer
Question: How do I change the time zone for an Amazon Aurora DB cluster?

I have an Amazon Aurora DB cluster, and I want to change the time zone. How can I do this?Short descriptionIn Amazon Aurora, the time_zone parameter is a cluster level parameter. The parameter group provides a default time zone for the cluster. This is the default for all databases. The default value of time_zone is UTC, and after you change the value of time_zone, your change is applied to all the nodes in the cluster.Note: The default_time_zone parameter refers to server time zone. You can't modify this parameter.Important: There is a difference between DB cluster parameter groups and DB instance parameter groups.A DB parameter group acts as a container for engine configuration values that are applied to one or more DB instances. DB parameter groups apply to DB instances in both Amazon Relational Database Service (Amazon RDS) and Amazon Aurora. These configuration settings apply to properties that can vary between the DB instances in an Aurora DB cluster, such as the sizes for memory buffers.A DB cluster parameter group acts as a container for engine configuration values that are applied to every DB instance in an Aurora DB cluster. For example, the Aurora shared storage model requires that every DB instance in an Aurora cluster use the same setting for parameters, such as innodb_file_per_table. So parameters that affect the physical storage layout are part of the DB cluster parameter group. The DB cluster parameter group also includes default values for all the DB instance-level parameters.

ResolutionThis example changes the time_zone parameter to ASIA/CALCUTTA using Amazon Aurora MySQL-Compatible Edition 5.7.1.    Create a custom DB cluster parameter group. For more information, see Working with parameter groups.2.    Modify the dynamic parameter time_zone="ASIA/CALCUTTA".3.    Attach the new DB cluster parameter group that you created to the cluster, and then manually reboot the DB cluster to apply the changes.4.    Check the timestamp of your DB instance by running the select @@time_zone command:mysql> select @@time_zone;+---------------+| @@time_zone   |+---------------+| Asia/Calcutta |+---------------+1 row in set (0.00 sec)Note: When you set the time zone at session level, this overrides both the database and parameter time zone. But, this is maintained only for the session. When you run the SET time_zone = 'Europe/Helsinki'; command, this sets the time zone for all the databases to Europe/Helsinki. The new time zone takes precedence over the parameter group time zone. A time zone set at database level overrides the parameter group time zone. A session time zone overrides both the parameter group time zone and a time zone set at database level.
Question: My Spot Instance was terminated. Can I recover it?

I had an Amazon Elastic Compute Cloud (Amazon EC2) Spot Instance running, but the instance was terminated, and I'm concerned I might have lost data.

Short descriptionWith Amazon EC2 Spot Instance, you can request unused Amazon EC2 instances to reduce your compute costs.The Spot Instance can be terminated if:The Spot price increases above the maximum price that you're willing to pay per hour per instanceCapacity is no longer availableThe Spot request has constraints that can't be metFor details about the reasons a Spot Instance can be interrupted, see How Spot Instances work. Data that isn't backed up can be lost when instances are terminated, so it's important to be aware of that for this use case. See Product features for a list of best-suited use cases and workload types.

ResolutionIf you have a Spot Instance that was recently terminated or interrupted, you might have a concern that your data has been lost. Here are some places to check for your data:Did you configure your Spot Instances to leave Amazon EBS volumes behind if the instance is terminated? You can configure the Spot Instance to leave Amazon EBS volumes behind if the instance is terminated. Then, you can attach the volume to another instance and attempt to recover data stored on the volume. When creating Spot Instance requests, clear the Delete check box for Amazon EBS volumes that you want to be kept if the instance is terminated. If you attached a volume to your Spot Instance, then the data you're looking for might be stored on the volume. Open the Amazon EC2 console, and then select Volumes. Look for any unattached volumes that have a State of available. These volumes can be attached to another instance. For instructions on attaching a volume to a new instance, see Attach an Amazon EBS volume to an instance.Did you take regular snapshots of any volumes attached to your Spot Instance? Snapshots that are normally used as backups for Amazon EBS volumes might contain the data you're looking for. Open the Amazon EC2 console, and then select Snapshots. Look for any snapshots of volumes that were attached to your Spot Instance. For more information, see Replace a volume using a previous snapshot.Was the data added or backed up to another source? Common output sources for workflows that run through Spot Instances include Amazon Simple Storage Service (Amazon S3), Amazon DynamoDB, and Amazon Relational Database Service (Amazon RDS). If you set your Spot Instance to send output to one of these services, check those services for the data you're looking for.For future planning, it's a best practice to prepare for a Spot Instance's termination ahead of time. For example, you can specify Amazon EC2 to stop or hibernate your Spot Instances rather than terminate them when they are interrupted. For more information about how to effectively prepare for a Spot Instance's eventual termination, see Spot Instance interruptions.

Related informationAmazon EC2 Spot InstancesAmazon EC2 FAQ
Question: How do I delete a NAT Gateway in Amazon VPC?

I want to delete a NAT gateway in Amazon Virtual Private Cloud (Amazon VPC) using the console.

ResolutionDeleting a NAT gateway disassociates its Elastic IP address, but that action doesn't release the address from your account. If you delete a NAT gateway, then the NAT gateway routes remain in a blackhole status until you update or delete the routes. If you no longer need the Elastic IP address that was associated with a public NAT gateway, see Release an Elastic IP address.To delete a NAT gateway in Amazon VPC, do the following:Access the Amazon VPC console.Select the AWS Region for your Amazon VPC.In the navigation pane, choose NAT Gateways.Select the option button for the NAT gateway, and then choose Actions, Delete NAT gateway.When prompted, enter delete and then choose Delete.Note: The NAT gateway entry might remain visible in the Amazon VPC console for an hour after removal.To delete a NAT gateway with the AWS Command Line Interface (AWS CLI), seedelete-nat-gateway.

Related informationWhy can't I delete my requester-managed VPC endpoint?
Question: Why did my EC2 instance reboot or restart itself?

Why did my Amazon Elastic Compute Cloud (Amazon EC2) instance reboot or restart unexpectedly?Short descriptionAlthough unexpected reboots or restarts are rare, there are several reasons they might occur. The following are the most common reasons:The instance failed one or both of its status checks.The underlying hardware hosting your instance was faulty and Amazon EC2 restarted the instance to move it to new, healthy hardware.Scheduled maintenance occurred on your instance that required a reboot.A user or application inside your server rebooted the instance.A kernel bug. If you encounter a kernel bug, be sure that your kernel is fully updated.To update the kernel, run one of the following commands or similar, depending on your Linux Operating system and version:sudo yum update kernelsudo zypper up kernel-defaultsudo apt upgrade linux-image-aws

ResolutionThere are several actions that you can take to determine why your instance rebooted:View status checksView the instance's status checks from the console or using the AWS Command Line Interface (AWS CLI). If a status check failure is indicated, see Why is my EC2 Linux instance unreachable and failing one or both of its status checks?Note: If you receive errors when running AWS CLI commands, make sure that you’re using the most recent version of the AWS CLI.View system logsIf the instance didn't fail a status check, then the instance might have rebooted due to operating system-level issues. Review the system logs to determine what error occurred. The system logs are located at /var/log/messages or /var/log/syslog depending on your OS distribution.If the instance fails a status check, you can reboot the instance to retrieve the system logs by using the console output. Review the console output logs to troubleshoot your issue. For more information, see Retrieve the system logs.View reboot historyUse the following commands to determine if a user or an application inside the server initiated the reboot:# grep reboot /home/*/.bash_history# grep reboot /root/.bash_history# history | grep -i reboot# history | grep -i init# last rebootView AWS CloudTrail Events historyInstance reboots initiated from the Amazon EC2 console or through the AWS CLI appear in CloudTrail Events history. To view these events:Open the AWS CloudTrail console.Choose Event history.Select Event name from the filter dropdown list, and then enter RebootInstances.Note: You can create an Amazon CloudWatch alarm that automatically recovers instances experiencing underlying hardware issues resulting in reboot. For information on how to set up the CloudWatch alarm, see Recover your instance.

Related informationTroubleshoot instances with failed status checksTypes of status checks
Question: How do I capture a screenshot of an unreachable Amazon EC2 Windows instance for troubleshooting?

I want to capture a screenshot of the Amazon EC2 instance to check its status. But, I can't use Remote Desktop Protocol (RDP) to connect to my Amazon Elastic Compute Cloud (Amazon EC2) Windows instance.

Short descriptionAn EC2 Windows instance might be unreachable for various reasons, such as network configuration, permissions, or high CPU use. The status of an instance might be unreachable even if the instance is running and otherwise appears healthy. To help identify why the connection attempt fails or times out, use the Get Instance Screenshot feature.

ResolutionNote: If you receive errors when running AWS Command Line Interface (AWS CLI) commands, make sure that you’re using the most recent version of the AWS CLI.You can use the Amazon EC2 console or AWS CLI to get a screenshot of an unreachable instance. The Get Instance Screenshot feature returns an image of the Windows desktop. This image looks similar to the view when you directly connect to the instance with a display monitor.For screenshot examples and troubleshooting steps for the issues that are featured in those examples, see Common screenshots.

Related informationTroubleshoot EC2 Windows instancesDetach an Amazon Elastic Block Store (Amazon EBS) volume from a Windows instanceTroubleshoot Remote Desktop disconnected errors (Microsoft)
Question: Why don't I see any of my AWS resources after signing in to my AWS account?

I signed in to my AWS account, but none of my resources are visible in the console. I know that these resources are still provisioned to my account. Why can’t I see them?ResolutionHere are a few common reasons that you might not see all your resources in the console:You accidentally signed in to a different accountIf you have more than one AWS account, sign in to the other account, and then check for your resources.The resources are in a different AWS RegionMost AWS resources are located in a specific geographical region, and the console displays only one Region at a time for those services. Be sure that you’re viewing the AWS Region that your resources are in.You don't have permissions to view those resourcesUpdate your IAM policy to allow access to view those resources, or ask your account administrator to update your IAM policy for you.

Related informationManaging your account
Question: I created or updated an IAM policy and received the error "Has prohibited field Principal". How can I resolve this?

How can I resolve the error "Has prohibited field Principal" with my AWS Identity and Access Management (IAM) policy?Short descriptionThe Principal element can be used in resource-based policies to control the IAM user or roles that are allowed to access the resource. For example, Amazon Simple Storage Service (Amazon S3) buckets use the resource-based policy named bucket policy to control access to a bucket. Bucket policies use the Principal element. IAM policies attached directly to IAM identities (users, groups, and roles) grant permissions to make API calls that don't have a Principal element. For more information, see Identity-based policies and resource-based policies.IAM roles have a resource-based policy that controls who's allowed to assume the role and receive temporary credentials. IAM roles also have an identity-based policy that controls what API calls that the temporary security credentials are allowed to make.Resource-based policies are different from resource-level permissions. Resource-level permissions can be used in both resource-based policies and identity-based policies. Resource-level permissions use the Resource element to restrict permissions to AWS resources.

ResolutionMake sure policies using the Principal element are created with the AWS service associated with the AWS resource, not within IAM. Check for AWS services that work with IAM to confirm if an AWS service uses resource-based policies. For example, Amazon S3 bucket policies are configured within the S3 service, not within IAM. For instructions, see Adding a bucket policy using the Amazon S3 console.The only resource-based policy that exists within the IAM service itself is the trust policy for IAM roles. To add a trust policy to an IAM role, make sure that you are editing the trust policy and not the permissions policy. For instructions, see modifying a role trust policy and permissions policy.

Related informationEditing the trust relationship for an existing roleGranting a user permissions to switch roles
Question: How do I remove a lost or broken MFA device from my AWS account?

I'm using a multi-factor authentication (MFA) device, but now I can't find the device, the device is broken, or the device is out-of-sync. How do I remove it?ResolutionIf the lost, broken, or out-of-sync MFA device is preventing you from signing in to the account, see What If an MFA device is lost or stops working?If you're still unable to gain access to the account, you can request assistance from AWS Support by filling out the Lost or unusable Multi-Factor Authentication (MFA) device form.If you can sign in to the account, and you want to remove an MFA device from an AWS account root user or deactivate an MFA device for an AWS Identity and Access Management (IAM) user, see Deactivating MFA devices.

Related informationWhat do I do if I receive an error when entering the CAPTCHA to sign in to my AWS account?Using multi-factor authentication (MFA) in AWSResynchronizing virtual and hardware MFA devices
Question: Why can't I associate a transit gateway to my Direct Connect gateway?

I want to troubleshoot why I can't associate a transit gateway with my AWS Direct Connect gateway.

ResolutionTo troubleshoot this issue, do the following:Confirm that your Direct Connect gateway isn't associated with a virtual private gateway or private virtual interface. A Direct Connect gateway can be associated with either a virtual private gateway or a transit gateway, but not both. If your Direct Connect gateway is associated with a virtual private gateway or a private virtual interface, then create a new Direct Connect gateway.Confirm that your Direct Connect gateway and transit gateway don't have the same Autonomous System Number (ASN). If they have the same ASN, then modify the ASN of your transit gateway. Or, create a new Direct Connect gateway with a different ASN. If you connect to multiple transit gateways that are in different Regions, use unique ASNs for each transit gateway.Confirm that you have the required AWS Identity and Access Management (IAM) permissions to associate a transit gateway to your Direct Connect gateway. For more information, see Identity and Access Management for Direct Connect.You can attach up only up to three transit gateways to a Direct Connect gateway. Make sure that you aren't exceeding this limit. For more information, see AWS Direct Connect quotas.

Related informationTransit gateway associations
Question: How do I run a command on an existing EC2 Windows instance when I reboot or start the instance?

I want to run a custom script on my existing Amazon Elastic Compute Cloud (Amazon EC2) Windows instance when I reboot or start the instance. How can I do this?Short descriptionYou can run a script that runs after the instance reboots or starts by adding it to user data. User data is processed by EC2Config (Windows Server 2012 R2 and earlier) or EC2Launch (Windows Server 2016 and later).

ResolutionWhen you add the script to user data, you must enclose it within a special tag. This tag determines whether the commands run in a Command Prompt window or run in Windows PowerShell. For more information, see Run commands on your Windows instance at launch.You can't add or change user data when the instance is running, but you can view it. To add or change user data, the instance must be in the stopped state. User data scripts don't run automatically when you reboot or start the instance. You can enable the user data to run the next time, or every time, that you reboot or start the instance.Warning: Before you stop an instance, be aware of the following:If you're not using an Elastic IP Address, then the public IP address is released when you stop the instance.If this instance has an instance store volume, then any data on it is lost when the instance is stopped.If the instance shutdown behavior is set to Terminate, then the instance terminates when it is stopped.If the instance is part of an Auto Scaling group, first detach the instance from the Auto Scaling Group. Then, after you stop and start the instance, attach the instance back to the Auto Scaling group.For more information, see Stop and start your instance.1.    Connect to your EC2 Windows instance.2.    For Windows Server 2016 or later, open a Windows PowerShell command window, and then run the following command:C:\ProgramData\Amazon\EC2-Windows\Launch\Scripts\InitializeInstance.ps1 –ScheduleFor Windows Server 2012 R2 or earlier, open C:\Program Files\Amazon\Ec2ConfigService\Ec2ConfigServiceSetting.exe.Then, for User Data, select Enable UserData execution for next service start.Note: The preceding command changes the local administrator password of the instance at every restart. If you're using an AMI with the No Key Pair option selected, you might lose access to your instance on restart.3.    From the Amazon EC2 console, stop the instance.4.    Select the instance. Then choose, Actions, Instance Settings, Edit User Data.5.    Add or update the user data, and then choose Save.Note: To run user data scripts every time you reboot or restart the instance, add the following:<persist>true</persist>6.    Start the instance. The user data scripts run as part of the instance start process.For additional troubleshooting, EC2Launch and EC2Config log files contain the output from the standard output and standard error streams. Log files are located as follows:EC2Launch: C:\ProgramData\Amazon\EC2-Windows\Launch\Log\UserdataExecution.logEC2Config: C:\Program Files\Amazon\Ec2ConfigService\Logs\Ec2Config.log

Related informationHow do I run a command on a new EC2 Windows instance at launch?