viatcheslavmogilevsky commented on a change in pull request #10638:
URL: https://github.com/apache/druid/pull/10638#discussion_r536385655
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File path: examples/quickstart/tutorial/hadoop/docker/Dockerfile
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@@ -109,8 +103,14 @@ RUN sed -i "/^[^#]*UsePAM/ s/.*/#&/" /etc/ssh/sshd_config
RUN echo "UsePAM no" >> /etc/ssh/sshd_config
RUN echo "Port 2122" >> /etc/ssh/sshd_config
-RUN service sshd start && $HADOOP_PREFIX/etc/hadoop/hadoop-env.sh &&
$HADOOP_PREFIX/sbin/start-dfs.sh && $HADOOP_PREFIX/bin/hdfs dfs -mkdir -p
/user/root
-RUN service sshd start && $HADOOP_PREFIX/etc/hadoop/hadoop-env.sh &&
$HADOOP_PREFIX/sbin/start-dfs.sh && $HADOOP_PREFIX/bin/hdfs dfs -put
$HADOOP_PREFIX/etc/hadoop/ input
+# script for plain sshd start
+RUN echo -e \
+ '#!/bin/bash\n/usr/sbin/sshd\ntimeout 10 bash -c "until printf \"\"
2>>/dev/null >>/dev/tcp/127.0.0.1/2122; do sleep 0.5; done"' > \
+ /usr/local/bin/start_sshd && \
+ chmod a+x /usr/local/bin/start_sshd
Review comment:
I decided to create `/usr/local/bin/start_sshd` executable by `RUN`
command to make non-standard ssh port `2122` visible in that Dockerfile
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