# Ray cluster setup with Docker

**URL:** <https://discuss.ray.io/t/ray-cluster-setup-with-docker/10214>\
**Category:** Ray Core\
**Created:** [April 13, 2023, 5:02am UTC](https://discuss.ray.io/t/ray-cluster-setup-with-docker/10214 "2023-04-13T05:02:50Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![marsupialtail](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.ray.io/marsupialtail/32/1950_2.png) [@marsupialtail](https://discuss.ray.io/u/marsupialtail)\
**Post date:** [April 13, 2023, 5:02am UTC](https://discuss.ray.io/t/ray-cluster-setup-with-docker/10214/1 "2023-04-13T05:02:50Z")

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**How severe does this issue affect your experience of using Ray?**

- High: It blocks me to complete my task.

It took me a while to figure this out, but I realized that when I use custom Docker images, the ray up command doesn’t seem to even install Docker on the worker machines. However when I use the official ray images things work! This is odd because my custom Docker image is just ten lines or so change from the official image.  
[quokka/problem.yaml at master · marsupialtail/quokka · GitHub](https://github.com/marsupialtail/quokka/blob/master/docker/problem.yaml#L20) doesn’t work but [quokka/problem.yaml at master · marsupialtail/quokka · GitHub](https://github.com/marsupialtail/quokka/blob/master/docker/problem.yaml#L21) works.

The docker image is public if you guys want to reproduce this issue.