Github user holdenk commented on a diff in the pull request:
https://github.com/apache/spark/pull/21092#discussion_r183156964
--- Diff:
resource-managers/kubernetes/docker/src/main/dockerfiles/spark/bindings/python/Dockerfile
---
@@ -0,0 +1,33 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements. See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+ARG base_img
+FROM $base_img
+WORKDIR /
+COPY python /opt/spark/python
+RUN apk add --no-cache python && \
+ python -m ensurepip && \
+ rm -r /usr/lib/python*/ensurepip && \
+ pip install --upgrade pip setuptools && \
+ rm -r /root/.cache
+ENV PYTHON_VERSION 2.7.13
--- End diff --
So I think it might make sense to build the container with both 2 & 3 since
the container might be built by a vendor or cluster administrator and then used
by a variety of people. What do folks think?
As for figuring out the env, if we wanted to do it that way we can call the
current users python and ask it for its version version information (based on
the Spark Python enviroment variables).
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