When Simple Application Server no longer meets your capacity or performance needs, share a custom image to Elastic Compute Service (ECS) to use your server's current configuration as the basis for ECS instances. This lets you move your workloads to ECS without rebuilding your environment from scratch.
Prerequisites
Before you begin, ensure that you have:
A custom image created from your Simple Application Server. See Create a custom image
Billing
If the shared image was created from an instance that uses an application image, charges apply when you create ECS instances from it:
Subscription ECS instance: you are charged for the image.
Pay-as-you-go ECS instance: no charge for the image.
For details, see Billable items.
Share the image
The shared image is created in the same region as the source custom image.
Go to the Images page in the Simple Application Server console.
On the Custom Images tab, find the image you want to share and click Share to ECS in the Actions column.
In the Share to ECS dialog, click Confirm.
The image is shared when the Actions column updates:
Share to ECS changes to Unshare the image to ECS.
Create ECS Instance becomes available.
The shared image appears in ECS in the same region as the original custom image.
What to do next
After sharing, use one of the following methods to create ECS instances from the shared image.
Copy the image and create an ECS instance (recommended)
Copy the shared image in the ECS console, then use the copy to create ECS instances or replace the operating system of an existing instance. This protects you from losing the image if your Simple Application Server expires.
If your Simple Application Server expires and is released, its snapshots and custom images are also deleted, which removes the shared image from ECS. To prevent shared images from being removed because the corresponding custom images are released or unshared, copy the shared image to ECS before the server expires to keep it available.
See Copy an image shared by Simple Application Server in the ECS console.
Create an ECS instance directly
On the Images page, find the shared image and click Create ECS Instance in the Actions column.
Migrate using Server Migration Center
As an alternative, use Server Migration Center (SMC) to migrate data from your Simple Application Server to an ECS instance without going through the image-sharing flow.
See Migrate data from a simple application server to an ECS instance.