Update the vllm production image to a newer version (vllm 0.19) as done in the WIP patch https://gerrit.wikimedia.org/r/c/operations/docker-images/production-images/+/1285395 .
The deployment of Qwen 3.6-27B fails because the current current vLLM base image is amd-vllm014(vLLM 0.14).
Qwen 3.6-27B-FP8 uses model_type qwen3_5, a new architecture that vLLM 0.14 does not recognize.
vLLM maintains an internal model registry that maps model types to implementation classes — qwen3_5 was added in vLLM 0.17+ and is not present in the 0.14 registry.
Upgrading to vLLM 0.19 resolves the issue with the Qwen 3.6-27B model because it bundles a newer version of the model registry and an updated transformers dependency that both include native qwen3_5 support.