Intuit python version for compatible Ray image

Author: ChristianZaccaria

src/codeflare_sdk/ray/cluster/generate_yaml.py

@@ -18,6 +18,7 @@
 """
 
 import json
+import sys
 import typing
 import yaml
 import os
@@ -31,6 +32,11 @@
 )
 import codeflare_sdk
 
+SUPPORTED_PYTHON_VERSIONS = {
+    "3.9": "quay.io/modh/ray@sha256:0d715f92570a2997381b7cafc0e224cfa25323f18b9545acfd23bc2b71576d06",
+    "3.11": "quay.io/modh/ray:2.35.0-py311-cu121",
+}
+
 
 def read_template(template):
     with open(template, "r") as stream:
@@ -88,9 +94,16 @@ def update_names(
 
 def update_image(spec, image):
     containers = spec.get("containers")
-    if image != "":
-        for container in containers:
-            container["image"] = image
+    if not image:
+        python_version = f"{sys.version_info.major}.{sys.version_info.minor}"
+        if python_version in SUPPORTED_PYTHON_VERSIONS:
+            image = SUPPORTED_PYTHON_VERSIONS[python_version]
+        else:
+            raise ValueError(
+                f"Python version '{python_version}' is not supported. Only 3.9 and 3.11 are supported."
+            )
+    for container in containers:
+        container["image"] = image
 
 
 def update_image_pull_secrets(spec, image_pull_secrets):