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The HTTP scale API (floor) target updates the range available to your platform’s autoscaler. Your autoscaler continues choosing the live replica count within that range. This mode uses the shared status endpoint and authentication contract.

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Write contract

Arklow sends:
Both values come from the accepted scale setting and remain within the target’s configured envelope. Return a 2xx response after your platform accepts the new range. The status endpoint can return settled: false while the autoscaler or underlying capacity converges.

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Add an HTTP floor target

1

Prepare the API

Implement the shared status endpoint and the autoscaling write endpoint.
2

Open scale targets

Go to Scale Targets, click New scale target, and select HTTP scale API (floor).
3

Enter the endpoint

Provide the public HTTPS base URL of the scale API.
4

Select authentication

Choose the HTTP Auth Headers credential containing the headers your API expects.
5

Select capacity

Choose the destination or shared pool served by this platform.
6

Set the envelope

Enter the minimum and maximum replicas available to your autoscaler.
7

Save

Create the target and confirm that its first status observation matches your platform.