[python3.10] Build py310 images (#24859)

Build python 3.10 images so we can run release tests.

.buildkite/pipeline.yml

@@ -136,6 +136,14 @@
     - if [ "${BUILDKITE_PULL_REQUEST}" = "false" ]; then python .buildkite/copy_files.py --destination docker_login; fi
     - python ./ci/build/build-docker-images.py --py-versions py39 --device-types cu110 cu111 cu112 --build-type BUILDKITE --build-base
 
+- label: ":docker: Build Images: py310"
+  conditions: ["RAY_CI_LINUX_WHEELS_AFFECTED"]
+  commands:
+    - LINUX_WHEELS=1 ./ci/ci.sh build
+    - pip install -q docker aws_requests_auth boto3
+    - if [ "${BUILDKITE_PULL_REQUEST}" = "false" ]; then python .buildkite/copy_files.py --destination docker_login; fi
+    - python ./ci/build/build-docker-images.py --py-versions py310 --device-types cpu --build-type BUILDKITE --build-base
+
 - label: ":book: Lint"
   commands:
     - export LINT=1

ci/build/build-docker-images.py

@@ -29,7 +29,13 @@ DOCKER_HUB_DESCRIPTION = {
     "ray-worker-container": "Internal Image for CI test",
 }
 
-PY_MATRIX = {"py36": "3.6.12", "py37": "3.7.7", "py38": "3.8.5", "py39": "3.9.5"}
+PY_MATRIX = {
+    "py36": "3.6.12",
+    "py37": "3.7.7",
+    "py38": "3.8.5",
+    "py39": "3.9.5",
+    "py310": "3.10.4",
+}
 
 BASE_IMAGES = {
     "cu112": "nvidia/cuda:11.2.0-cudnn8-devel-ubuntu18.04",
@@ -182,15 +188,15 @@ def _build_docker_image(
         )
 
     # TODO(https://github.com/ray-project/ray/issues/16599):
-    # remove below after supporting ray-ml images with Python 3.9
-    if image_name == "ray-ml" and py_version == "py39":
-        print(f"{image_name} image is currently unsupported with " "Python 3.9")
+    # remove below after supporting ray-ml images with Python 3.9+
+    if image_name == "ray-ml" and py_version in {"py39", "py310"}:
+        print(f"{image_name} image is currently unsupported with " "Python 3.9/3.10")
         return
 
     build_args = {}
     build_args["PYTHON_VERSION"] = PY_MATRIX[py_version]
-    # I.e. "py36"[-1] == 6
-    build_args["PYTHON_MINOR_VERSION"] = py_version[-1]
+    # I.e. "py310"[3:] == 10
+    build_args["PYTHON_MINOR_VERSION"] = py_version[3:]
 
     device_tag = f"{image_type}"
 

docker/base-deps/Dockerfile

@@ -76,4 +76,5 @@ RUN sudo apt-get update -y && sudo apt-get upgrade -y \
     && sudo rm -rf /var/lib/apt/lists/* \
     && sudo apt-get clean
 
+
 WORKDIR $HOME

docker/retag-lambda/python_versions.txt

@@ -1,4 +1,5 @@
 py36
 py37
 py38
-py39
+py39
+py310