Github user felixcheung commented on a diff in the pull request: https://github.com/apache/spark/pull/20192#discussion_r160874300 --- Diff: resource-managers/kubernetes/docker/src/main/dockerfiles/spark/entrypoint.sh --- @@ -0,0 +1,97 @@ +#!/bin/bash +# +# 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. +# + +# echo commands to the terminal output +set -ex + +# Check whether there is a passwd entry for the container UID +myuid=$(id -u) +mygid=$(id -g) +uidentry=$(getent passwd $myuid) + +# If there is no passwd entry for the container UID, attempt to create one +if [ -z "$uidentry" ] ; then + if [ -w /etc/passwd ] ; then + echo "$myuid:x:$myuid:$mygid:anonymous uid:$SPARK_HOME:/bin/false" >> /etc/passwd + else + echo "Container ENTRYPOINT failed to add passwd entry for anonymous UID" + fi +fi + +SPARK_K8S_CMD="$1" +if [ -z "$SPARK_K8S_CMD" ]; then + echo "No command to execute has been provided." 1>&2 --- End diff -- we can revisit when we have proper client support. overriding the entrypoint won't do if I want everything else set (eg. SPARK_CLASSPATH)
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