[CI] Rename cuda dimension to platform in anyscale CUDA build steps

Rename the cuda matrix dimension to platform (with cu-prefixed values)
in the three anyscale CUDA build steps and their wandas.  The wandas
now accept $PLATFORM directly instead of constructing it from
cu$CUDA_VERSION; output is identical since callers pass cu-prefixed
values.

This aligns the dimension name with the publish steps (anyscalebuild,
anyscalellmbuild, anyscalemlbuild) which already use a platform
dimension, enabling precise ($) dependency matching on both platform
and python when these steps are later converted to array syntax.

Topic: wanda-platform-env
Relative: array-wheel-build
Labels: draft
Signed-off-by: andrew <[email protected]>

Author: andrew-anyscale

.buildkite/release/build.rayci.yml

@@ -94,7 +94,7 @@ steps:
       - raycpubaseextra-testdeps
 
   - name: ray-anyscale-cuda-build
-    label: "wanda: ray-anyscale py{{matrix.python}} cu{{matrix.cuda}}"
+    label: "wanda: ray-anyscale py{{matrix.python}} {{matrix.platform}}"
     wanda: ci/docker/ray-anyscale-cuda.wanda.yaml
     env_file: rayci.env
     matrix:
@@ -106,15 +106,15 @@ steps:
           - "3.11"
           - "3.12"
           - "3.13"
-        cuda:
-          - "12.3.2-cudnn9"
+        platform:
+          - "cu12.3.2-cudnn9"
       adjustments:
         - with:
             python: "3.12"
-            cuda: "13.0.0-cudnn"
+            platform: "cu13.0.0-cudnn"
     env:
       PYTHON_VERSION: "{{matrix.python}}"
-      CUDA_VERSION: "{{matrix.cuda}}"
+      PLATFORM: "{{matrix.platform}}"
       ARCH_SUFFIX: ""
     tags:
       - oss
@@ -153,22 +153,22 @@ steps:
             platform: cu13.0.0-cudnn
 
   - name: ray-llm-anyscale-cuda-build
-    label: "wanda: ray-llm-anyscale py{{matrix.python}} cu{{matrix.cuda}}"
+    label: "wanda: ray-llm-anyscale py{{matrix.python}} {{matrix.platform}}"
     wanda: ci/docker/ray-llm-anyscale-cuda.wanda.yaml
     env_file: rayci.env
     matrix:
       setup:
         python:
           - "3.12"
-        cuda:
-          - "13.0.0-cudnn"
+        platform:
+          - "cu13.0.0-cudnn"
       adjustments:
         - with:
             python: "3.11"
-            cuda: "12.8.1-cudnn"
+            platform: "cu12.8.1-cudnn"
     env:
       PYTHON_VERSION: "{{matrix.python}}"
-      CUDA_VERSION: "{{matrix.cuda}}"
+      PLATFORM: "{{matrix.platform}}"
       ARCH_SUFFIX: ""
     tags:
       - oss
@@ -202,7 +202,7 @@ steps:
             platform: "cu12.8.1-cudnn"
 
   - name: ray-ml-anyscale-cuda-build
-    label: "wanda: ray-ml-anyscale py{{matrix.python}} cu{{matrix.cuda}}"
+    label: "wanda: ray-ml-anyscale py{{matrix.python}} {{matrix.platform}}"
     wanda: ci/docker/ray-ml-anyscale-cuda.wanda.yaml
     env_file: rayci.env
     matrix:
@@ -211,11 +211,11 @@ steps:
           # This list should be kept in sync with the list of supported Python in
           # release test suite
           - "3.10"
-        cuda:
-          - "12.1.1-cudnn8"
+        platform:
+          - "cu12.1.1-cudnn8"
     env:
       PYTHON_VERSION: "{{matrix.python}}"
-      CUDA_VERSION: "{{matrix.cuda}}"
+      PLATFORM: "{{matrix.platform}}"
       ARCH_SUFFIX: ""
     tags:
       - oss

ci/docker/ray-anyscale-cuda.wanda.yaml

@@ -4,17 +4,17 @@
 #
 # This produces the anyscale test image for GPU release tests.
 #
-name: "ray-anyscale-py$PYTHON_VERSION-cu$CUDA_VERSION$ARCH_SUFFIX"
+name: "ray-anyscale-py$PYTHON_VERSION-$PLATFORM$ARCH_SUFFIX"
 disable_caching: true
 froms:
-  - "cr.ray.io/rayproject/ray-py$PYTHON_VERSION-cu$CUDA_VERSION-base-extra-testdeps"  # CUDA base with test deps
+  - "cr.ray.io/rayproject/ray-py$PYTHON_VERSION-$PLATFORM-base-extra-testdeps"  # CUDA base with test deps
   - "cr.ray.io/rayproject/ray-wheel-py$PYTHON_VERSION$ARCH_SUFFIX"                    # Ray wheel
 dockerfile: ci/docker/ray-image.Dockerfile
 build_args:
   - PYTHON_VERSION
   - ARCH_SUFFIX
   - IMAGE_TYPE=ray
   - BASE_VARIANT=base-extra-testdeps
-  - PLATFORM=cu$CUDA_VERSION
+  - PLATFORM
   - RAY_COMMIT=$BUILDKITE_COMMIT
   - RAY_VERSION

ci/docker/ray-llm-anyscale-cuda.wanda.yaml

@@ -4,17 +4,17 @@
 #
 # This produces the anyscale test image for ray-llm GPU release tests.
 #
-name: "ray-llm-anyscale-py$PYTHON_VERSION-cu$CUDA_VERSION$ARCH_SUFFIX"
+name: "ray-llm-anyscale-py$PYTHON_VERSION-$PLATFORM$ARCH_SUFFIX"
 disable_caching: true
 froms:
-  - "cr.ray.io/rayproject/ray-llm-py$PYTHON_VERSION-cu$CUDA_VERSION-base-extra-testdeps"  # ray-llm base with test deps
+  - "cr.ray.io/rayproject/ray-llm-py$PYTHON_VERSION-$PLATFORM-base-extra-testdeps"  # ray-llm base with test deps
   - "cr.ray.io/rayproject/ray-wheel-py$PYTHON_VERSION$ARCH_SUFFIX"                        # Ray wheel
 dockerfile: ci/docker/ray-image.Dockerfile
 build_args:
   - PYTHON_VERSION
   - ARCH_SUFFIX
   - BASE_VARIANT=base-extra-testdeps
   - IMAGE_TYPE=ray-llm
-  - PLATFORM=cu$CUDA_VERSION
+  - PLATFORM
   - RAY_COMMIT=$BUILDKITE_COMMIT
   - RAY_VERSION

ci/docker/ray-ml-anyscale-cuda.wanda.yaml

@@ -4,17 +4,17 @@
 #
 # This produces the anyscale test image for ray-ml GPU release tests.
 #
-name: "ray-ml-anyscale-py$PYTHON_VERSION-cu$CUDA_VERSION$ARCH_SUFFIX"
+name: "ray-ml-anyscale-py$PYTHON_VERSION-$PLATFORM$ARCH_SUFFIX"
 disable_caching: true
 froms:
-  - "cr.ray.io/rayproject/ray-ml-py$PYTHON_VERSION-cu$CUDA_VERSION-base-extra-testdeps"  # ray-ml base with test deps
+  - "cr.ray.io/rayproject/ray-ml-py$PYTHON_VERSION-$PLATFORM-base-extra-testdeps"  # ray-ml base with test deps
   - "cr.ray.io/rayproject/ray-wheel-py$PYTHON_VERSION$ARCH_SUFFIX"                       # Ray wheel
 dockerfile: ci/docker/ray-image.Dockerfile
 build_args:
   - PYTHON_VERSION
   - ARCH_SUFFIX
   - BASE_VARIANT=base-extra-testdeps
   - IMAGE_TYPE=ray-ml
-  - PLATFORM=cu$CUDA_VERSION
+  - PLATFORM
   - RAY_COMMIT=$BUILDKITE_COMMIT
   - RAY_VERSION