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The EC2 Tab provides options for setting up and using AWS-Specific Features such as Elastic IP's and CloudWatch with Scalr. To access the EC2 Tab, open the Farms List, click on the Actions Button in the far right column for the desired Farm, select Configure from the provided drop-down menu, and then click on the Farm Role you would like to configure.

Advanced EC2 Settings

Instance Name

The Instance Name field allows you to specify the template that Scalr should use to name Servers in EC2. 

This field supports Global Variable Interpolation.

IAM Instance Profile

To have instances of this Farm Role assume a specific Amazon IAM Instance Profile, select that IAM Instance Profile here.


To use a custom Linux Kernel with instances of this Farm Role, specify an Amazon Kernel ID (AKI) here.

To use an Amazon Ram Disk with instances of this Farm Role, specify an Amazon Ramdisk ID (ARI) here.

Cluster Placement Group

Be mindful that restrictions apply when using Amazon Placement Groups. Refer to the Amazon Placement Group documentation for more details.

To launch all instances of this Farm Role as part of an Amazon Placement Group, specify the Placement Group name here. 


Restrictions apply to EBS-Optimized, and this option will not be available for all instance types. Refer to the Amazon EBS-Optimized Instances documentation for more details.

To launch instances of this Farm Role as EBS-Optimized, select this option.


You can learn more about CloudWatch on the Statistics page. To learn more about Scalr features for AWS, please refer to the Cloud-Specific Scalr Features section of this documentation.

Note that Basic CloudWatch Monitoring (free of charge) is enabled by default. Refer to the Amazon CloudWatch product introduction for more details.

To enable Detailed CloudWatch Monitoring for instances of this Farm Role, select this option.


Impacted by Governance

A Tagging Policy might prevent you from adding custom tags. 

Scalr automatically tags EC2 instances and EBS volumes provisioned through the Database Settings Tab and the Storage Tab. If there is no Governance policy restricting tags, you may add additional tags here.

Tag values support Global Variable Interpolation. The Global Variables in scope are that of the instance being tagged (for instances), or that of the instance provisioning the volume (for EBS volumes).