EC2 IAM instance profile

An instance profile is a container for an IAM role that you can use to pass role information to an EC2 instance when the instance starts.

MALZ

Currently there are two AMS default instance profiles, customer-mc-ec2-instance-profile and customer-mc-ec2-instance-profile-s3, these instance profiles provide the permissions described in the following table.

Policy descriptions
Profile	Policies
customer-mc-ec2-instance-profile	AmazonSSMManagedInstanceCore: Allows Ec2 instances to use the SSM agent.
	AMSInstanceProfileLoggingPolicy: Allows Ec2 instances to push logs to S3 and CloudWatch.
	AMSInstanceProfileManagementPolicy: Allows Ec2 instances to perform booting actions, like joining Active Directory.
	AMSInstanceProfileMonitoringPolicy: Allows Ec2 instances to report findings to AMS monitoring services.
	AMSInstanceProfilePatchPolicy: Allows Ec2 instances to receive patches.
customer-mc-ec2-instance-profile-s3	AMSInstanceProfileBYOEPSPolicy: Allows Ec2 instances to use AMS bring your own EPS.
	AMSInstanceProfileLoggingPolicy: Allows Ec2 instances to push logs to S3 and CloudWatch.
	AMSInstanceProfileManagementPolicy: Allows Ec2 instances to perform booting actions, like joining Active Directory.
	AMSInstanceProfileMonitoringPolicy: Allows Ec2 instances to report findings to AMS monitoring services.
	AMSInstanceProfilePatchPolicy: Allows Ec2 instances to receive patches.
	AMSInstanceProfileS3WritePolicy: Allows Ec2 instances to read/write to customer S3 buckets.

SALZ

Currently there is one AMS default instance profile, customer-mc-ec2-instance-profile, this instance profile provides the permissions described in the following table. The profile grants permissions to the applications. running on the instance, not to users logging into the instance.

Policies often include multiple statements, where each statement grants permissions to a different set of resources or grants permissions under a specific condition.

CW = CloudWatch. ARN = Amazon Resource Name. * = wildcard (any).

EC2 default IAM instance profile permissions
CW = CloudWatch. ARN = Amazon Resource Name. * = wildcard (any).
Policy statement	Effect	Actions	Description and resource (ARN)
Amazon Elastic Compute Cloud (Amazon EC2)
EC2 Message Actions	Allow	AcknowledgeMessage, DeleteMessage, FailMessage, GetEndpoint, GetMessages, SendReply	Allows EC2 Systems Manager messaging actions in your account.
Ec2 Describe	Allow	* (All)	Allows the console to display configuration details of an EC2 in your account.
Iam Get Role ID	Allow	GetRole	Allows EC2 to get your IAM ID from aws:iam::*:role/customer-* and aws:iam::*:role/customer_*.
Instance To Upload Log Events	Allow	Create Log Group	Allows logs to be created in: aws:logs:*:*:log-group:i-*
		Create Log Stream	Allows logs to be streamed to: aws:logs:*:*:log-group:i-*
CW For MMS	Allow	DescribeAlarms, PutMetricAlarm, PutMetricData	Allows CloudWatch to retrieve alarms in your account. Allows CW to create or update an alarm and associate it with the specified metric. Allows CW to publish metric data points to your account.
Ec2 Tags	Allow	CreateTags, DescribeTags,	Allows tags to be added, overwritten, and described on the specified instances in your account.
Explicitly Deny CW Logs	Deny	DescribeLogStreams, FilterLogEvents, GetLogEvents	Disallows listing, filtering, or getting the log streams for: aws:logs:*:*:log-group:/mc/*
Amazon EC2 Simple Systems Manager (SSM)
SSM Actions	Allow	DescribeAssociation, GetDocument, ListAssociations, UpdateAssociationStatus, UpdateInstanceInformation	Allows a variety of SSM functions in your account.
SSM Access In S3	Allow	GetObject, PutObject, AbortMultipartUpload, ListMultipartUploadPorts, ListBucketMultipartUploads	Allows the SSM on the EC2 to get and update objects in, and to abort a multi-part object upload to, and list ports and buckets available for, multi-part uploads in aws:s3:::mc-*-internal-*/aws/ssm*.
Amazon EC2 Simple Storage Service (S3)
Get Object In S3	Allow	Get List	Allows EC2 applications to retrieve and list objects in S3 buckets in your account.
Customer Encrypted Log S3 Access	Allow	PutObject	Allows EC2 applications to update objects in aws:s3:::mc-*-logs-*/encrypted/app/*
Patch Data Put Object S3	Allow	PutObject	Allows EC2 applications to upload patching data to your S3 buckets at aws:s3:::awsms-a*-patch-data-*
Uploading Own Logs To S3	Allow	PutObject	Allows EC2 applications to upload custom logs to: aws:s3:::mc-a*-logs-*/aws/instances/*/${aws:userid}/*
Explicitly Deny MC Namespace S3 Logs	Deny	GetObject* Put*	Disallows EC2 applications getting or putting any objects from or to: aws:s3:::mc-*-logs-*/encrypted/mc*, aws:s3:::mc-*-logs-*/mc/*, aws:s3:::mc-a*-logs-*-audit/*
Explicitly Deny S3 Delete	Deny	* (all)	Disallows EC2 applications taking any action on objects in: aws:s3:::mc-a*-logs-*/*, aws:s3:::mc-a*-internal-*/*,
Explicitly Deny S3 CFN Bucket	Deny	Delete*	Disallows EC2 applications deleting any objects from: aws:s3:::cf-templates-*
Explicitly Deny List Bucket S3	Deny	ListBucket	Disallows you listing any encrypted, audit log, or reserved (mc) objects from: aws:s3:::mc-*-logs-*

If you're unfamiliar with Amazon IAM policies, see Overview of IAM Policies for important information.

Note

Policies often include multiple statements, where each statement grants permissions to a different set of resources or grants permissions under a specific condition.