How to set storage location for ADS container pull

Question

We are using Azure DevOps Server 2020 Update 1.2. I am trying to run a container based pipeline. I did some initial testing w/ a very small container and it worked fine. The real work I need to do is in a much larger container. When I tried using the larger container, I got the following error: Error: writing blob: storing blob to file "/var/tmp/storage1004835098/10": write /var/tmp/storage1004835098/10: no space left on device The problem is that the /var/tmp directory on the Agent machine is not large enough to accommodate the larger image. I'd like to set the storage location to a different location that has more disk space available. How do I do that?