Access permissions that are necessary for logging

What permissions are needed for a user to successfully create log groups and log streams in Amazon CloudWatch Logs?

To create log groups and log streams in Amazon CloudWatch Logs, a user needs the logs:CreateLogGroup and logs:CreateLogStream permissions. These permissions allow the user to set up the necessary log infrastructure to capture and store logs.

In AWS, which IAM permission allows a user to write log events to the designated log stream?

The logs:PutLogEvents permission is required for a user to write log events to a specified log stream in AWS. This enables the system or user to send logs to CloudWatch Logs for monitoring and analysis.

Describe the necessary permissions for configuring AWS CloudTrail to deliver logs to an S3 bucket.

To configure CloudTrail to deliver logs to an S3 bucket, the following permissions are necessary:

• cloudtrail:CreateTrail and cloudtrail:UpdateTrail for setting up and modifying the trail.
• s3:PutObject permission on the S3 bucket to allow CloudTrail to write log files.
• s3:GetBucketACL and s3:PutBucketACL to manage access to the bucket.

These permissions ensure that the trail can be created or updated and that it can write logs to the designated S3 bucket.

Which IAM permissions are required for a service to push logs to a CloudWatch Logs group?

A service or entity needs the logs:CreateLogStream and logs:PutLogEvents permissions to send logs to a CloudWatch Logs group. The service would first need to create a log stream (if it does not exist) and then put log events into that stream.

What is the minimum permission required for a user to be able to list all CloudWatch log groups in an AWS account?

The logs:DescribeLogGroups permission is required to list all CloudWatch log groups in an AWS account. This permission allows a user to view the log groups and not modify them.

For a user to delete log groups and log streams in CloudWatch Logs, what permissions do they need?

A user requires logs:DeleteLogGroup and logs:DeleteLogStream permissions to delete log groups and log streams in CloudWatch Logs. These permissions provide the ability to clean up logs and manage the logging infrastructure efficiently.

Which role must an AWS Lambda function assume to successfully write execution logs to Amazon CloudWatch Logs?

An AWS Lambda function must assume an execution role with the logs:CreateLogGroup, logs:CreateLogStream, and logs:PutLogEvents permissions to write its execution logs to Amazon CloudWatch Logs. This is typically provided by assigning the AWS managed policy AWSLambdaBasicExecutionRole to the Lambda execution role.

If an EC2 instance needs to send logs to CloudWatch Logs, what instance profile permissions are required?

An EC2 instance requires an instance profile with a role that has logs:CreateLogGroup, logs:CreateLogStream, and logs:PutLogEvents permissions attached to it. This allows the instance to create the necessary resources in CloudWatch and send logs to those resources.

What permissions are necessary for an IAM user to modify the retention policy of a CloudWatch Logs log group?

The logs:PutRetentionPolicy permission is required for an IAM user to modify the retention policy of a CloudWatch Logs log group. This permission allows the user to change how long logs are kept before they are automatically deleted.

What permission does a user need to set up an AWS CloudTrail trail that applies to all regions in an account?

To set up an AWS CloudTrail trail that applies to all regions in an account, the user needs the cloudtrail:CreateTrail permission with the IsMultiRegionTrail option set to true. Additionally, the user would require appropriate S3 bucket permissions to store the logs and optionally sns:Publish if notifications are configured.

Which permissions are required for an IAM role that a third-party application uses to access log files within a specific S3 bucket?

The IAM role for a third-party application will typically need s3:ListBucket to list the objects in the bucket, and s3:GetObject to read the log files. If the application also needs to update or delete logs, then s3:PutObject and s3:DeleteObject permissions would also be required.

How do you ensure that only specific resources, such as EC2 instances with a particular tag, have the permission to write to a CloudWatch Logs log group?

You can use resource-based policies and condition keys to control which resources have permissions to write to a CloudWatch Logs log group. Specifically, the aws:ResourceTag/tag-key condition key in the policy will restrict permission to resources that match the specified tags. This ensures that only EC2 instances with the particular tag have the logs:CreateLogStream and logs:PutLogEvents permissions for the log group.