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From GitBox <...@apache.org>
Subject [GitHub] GJL commented on a change in pull request #6496: [FLINK-10063][tests] Use runit to supervise mesos processes.
Date Wed, 08 Aug 2018 14:41:46 GMT
GJL commented on a change in pull request #6496: [FLINK-10063][tests] Use runit to supervise
mesos processes.
URL: https://github.com/apache/flink/pull/6496#discussion_r208608118
 
 

 ##########
 File path: flink-jepsen/docker/Dockerfile-db
 ##########
 @@ -35,5 +35,12 @@ RUN mkdir -p /root/.ssh/ && \
     chmod 600 /root/.ssh/authorized_keys && \
     cat /root/id_rsa.pub >> /root/.ssh/authorized_keys
 
+COPY sshd-run /etc/sv/service/sshd/run
+RUN chmod +x /etc/sv/service/sshd/run && \
+    ln -sf /etc/sv/service/sshd /etc/service
+
 EXPOSE 22
-CMD exec /usr/sbin/sshd -D
+
+# Start runit process supervisor which will bring up sshd.
+# In our tests we can use runit to supervise more processes, e.g., Mesos.
+CMD runsvdir -P /etc/service /dev/null > /dev/null
 
 Review comment:
   Yes is needed. It only redirects std err:
   
   >>> If the log argument is given to runsvdir, all output to standard error is
redirected to this log

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