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[Monitoring, Reporting, and Automation]
A SysOps administrator uses AWS Systems Manager Session Manager to connect to instances After the SysOps administrator launches a new Amazon EC2 instance the EC2 instance does not appear in the Session Manager list of systems that are available for connection. The SysOps administrator verities that Systems Manager Agent is installed updated and running on the EC2 instance
What is the reason for this issue?
If an EC2 instance does not appear in the Systems Manager Session Manager list, it is likely because the instance does not have an attached IAM role that allows Session Manager to connect.
Attach IAM Role with Necessary Permissions:
Ensure the EC2 instance has an IAM role attached with the AmazonSSMManagedInstanceCore policy.
Steps to Attach IAM Role:
Open the EC2 console, select the instance, and choose 'Actions' -> 'Instance Settings' -> 'Attach/Replace IAM Role.'
Select or create an IAM role with the necessary permissions for Session Manager.
Permissions for Session Manager:
The AmazonSSMManagedInstanceCore policy provides the required permissions for the Systems Manager agent to interact with the Systems Manager service.
Session Manager Prerequisites
Attach an IAM Role to an Instance
[Monitoring, Reporting, and Automation]
A company using AWS Organizations requires that no Amazon S3 buckets in its production accounts should ever be deleted.
What is the SIMPLEST approach the SysOps administrator can take to ensure S3 buckets in those accounts can never be deleted?
https://docs.aws.amazon.com/organizations/latest/userguide/orgs_manage_policies_scps.html
If you're using AWS Organizations, check the service control policies for any statements that explicitly deny Amazon S3 access. In particular, check the service control policies for statements denying the s3:PutBucketPolicy action. https://aws.amazon.com/tw/premiumsupport/knowledge-center/s3-access-denied-bucket-policy/
[Monitoring, Reporting, and Automation]
A global company operates out of five AWS Regions. A SysOps administrator wants to identify all the company's tagged and untagged Amazon EC2 instances.
The company requires the output to display the instance ID and tags.
What is the MOST operationally efficient way for the SysOps administrator to meet these requirements?
To identify both tagged and untagged EC2 instances across multiple AWS Regions efficiently:
AWS Tag Editor: Tag Editor allows you to search for resources across your AWS account by tags, including both tagged and untagged resources.
Search Setup: In the Tag Editor, select all the Regions where the company operates. Specify the resource type as AWS::EC2::Instance to focus the search on EC2 instances.
View and Export Data: Execute the search to view all EC2 instances, along with their associated tags and instance IDs. This data can be exported for further analysis or reporting.
Using the Tag Editor is an operationally efficient way to quickly get a comprehensive view of resource tagging across multiple Regions, aiding in compliance and resource management tasks.
[Deployment, Provisioning, and Automation]
A Sysops administrator launches an Amazon EC2 instance from a Windows Amazon Machine Image (AMI). The EC2 instance includes additional Amazon Elastic Block Store (Amazon EBS) volumes. When the instance is launched, none of the additional Amazon Elastic Block Store (Amazon EBS) volumes are initialized and ready for use through a drive letter. The SysOps administrator needs to automate the EBS volume initialization.
Which solution will meet these requirements in the MOST operationally efficient way?
To automate the initialization of additional EBS volumes on Windows EC2 instances, the most effective approach is to integrate initialization scripts within the instance so that they execute upon startup:
Configure Initialization Script: Use a Windows PowerShell script (InitializeDisks.ps1) to initialize and format the additional EBS volumes. The script can assign drive letters based on configurations specified in DriveLetterMappingConfig.json.
Automate at Launch: Ensure that the PowerShell script runs automatically upon instance startup. This can be configured through Windows Task Scheduler or by setting it up in the startup folder.
Create a Custom AMI: Once the instance is configured with the script and successfully initializes the disks on startup, create a new AMI from this setup. This AMI can then be used to launch new instances that will automatically initialize their additional EBS volumes with no manual intervention required.
This method leverages native Windows tools and AWS capabilities to automate EBS volume initialization, enhancing operational efficiency without additional external dependencies.
[Monitoring, Reporting, and Automation]
A SysOps administrator must ensure that a company's Amazon EC2 instances auto scale as expected The SysOps administrator configures an Amazon EC2 Auto Scaling Lifecycle hook to send an event to Amazon EventBridge (Amazon CloudWatch Events), which then invokes an AWS Lambda function to configure the EC2 distances When the configuration is complete, the Lambda function calls the complete Lifecycle-action event to put the EC2 instances into service. In testing, the SysOps administrator discovers that the Lambda function is not invoked when the EC2 instances auto scale.
What should the SysOps administrator do to reserve this issue?
If a Lambda function is not being invoked by an Amazon EventBridge (formerly CloudWatch Events) rule, the likely issue is a missing permission. The Lambda function needs permission to be invoked by the EventBridge rule.
Steps:
Add Permission to Lambda Function:
Open the AWS Lambda console.
Select your Lambda function.
Choose 'Configuration' and then 'Permissions'.
Under the 'Resource-based policy' section, add a policy that grants EventBridge permission to invoke your function.
Example policy:
{
'Version': '2012-10-17',
'Statement':
[
{
'Effect': 'Allow',
'Principal': {
'Service': 'events.amazonaws.com'
},
'Action': 'lambda:InvokeFunction',
'Resource': 'arn:aws:lambda:REGION:ACCOUNT_ID:function:FUNCTION_NAME',
'Condition': {
'ArnLike': {
'AWS:SourceArn': 'arn:aws:events:REGION:ACCOUNT_ID:rule/RULE_NAME'
}
}
}
]
}
Verify the EventBridge Rule:
Open the Amazon EventBridge console.
Select the rule that targets your Lambda function.
Ensure that the rule is correctly configured to match events and the target is your Lambda function.
AWS Lambda Permissions Model
Amazon EventBridge Rules
