AWS autoscaling documentation change
Summary
Updated terminology from 'Auto Scaling group' to 'Amazon EC2 Auto Scaling group' and added new use case for applying security patches/software updates while preserving instance state
Security assessment
The change adds documentation about using instance refresh for applying security patches, which is a security-related feature. However, there is no evidence this addresses a specific active security vulnerability - it documents a security maintenance capability.
Diff
diff --git a/autoscaling/ec2/userguide/asg-instance-refresh.md b/autoscaling/ec2/userguide/asg-instance-refresh.md index 79da44ce6..e2864686b 100644 --- a//autoscaling/ec2/userguide/asg-instance-refresh.md +++ b//autoscaling/ec2/userguide/asg-instance-refresh.md @@ -5 +5 @@ -# Use an instance refresh to update instances in an Auto Scaling group +# Use an instance refresh to update instances in an Amazon EC2 Auto Scaling group @@ -7 +7 @@ -You can use an instance refresh to update the instances in your Auto Scaling group. This feature can be useful when a configuration change requires you to replace instances, especially if your Auto Scaling group contains a large number of instances. +You can use an instance refresh to update the instances in your Amazon EC2 Auto Scaling group. This feature can be useful when a configuration change requires you to replace instances or their root volumes, especially if your Amazon EC2 Auto Scaling group contains a large number of instances. @@ -11 +11 @@ Some situations where an instance refresh can help include: - * Deploying a new Amazon Machine Image (AMI) or user data script across your Auto Scaling group. You can create a new launch template with the changes and then use an instance refresh to roll out the updates immediately. + * Deploying a new Amazon Machine Image (AMI) or user data script across your Amazon EC2 Auto Scaling group. You can create a new launch template with the changes and then use an instance refresh to roll out the updates immediately. @@ -15 +15,3 @@ Some situations where an instance refresh can help include: - * Switching your Auto Scaling groups from using a launch configuration to using a launch template. You can copy your launch configurations to launch templates and then use an instance refresh to update your instances to the new templates. For more information about migrating to launch templates, see [Migrate your Auto Scaling groups to launch templates](./migrate-to-launch-templates.html). + * Switching your Amazon EC2 Auto Scaling groups from using a launch configuration to using a launch template. You can copy your launch configurations to launch templates and then use an instance refresh to update your instances to the new templates. For more information about migrating to launch templates, see [Migrate your Amazon EC2 Auto Scaling groups to launch templates](./migrate-to-launch-templates.html). + + * Applying security patches or software updates while preserving long-running instance state and avoiding capacity constraints with specialized instance types like GPU or Mac instances. @@ -29,0 +32,2 @@ Some situations where an instance refresh can help include: + * [Replace root volumes](./replace-root-volume.html) +