apache2 was looking for two other directories

/var/lock/apache2
/var/run/apache2
Upstream-commit: 3fb913ab7712634f1f311a9aab47c5eaa9f8fe9d
Component: engine

components/engine/docs/sources/articles/using_supervisord.md

@@ -38,6 +38,7 @@ We can now install our SSH and Apache daemons as well as Supervisor in
 our container.
 
     RUN apt-get install -y openssh-server apache2 supervisor
+    RUN mkdir -p /var/lock/apache2 /var/run/apache2
     RUN mkdir -p /var/run/sshd
     RUN mkdir -p /var/log/supervisor