fix some bugs

Dockerfile

@@ -3,6 +3,11 @@ FROM phusion/baseimage:0.11
 # Use baseimage-docker's init system.
 CMD ["/sbin/my_init"]
 
+# make some SSH keys that will never get used just so that
+# the container doesn't generate new ones each and every boot
+# (sshd is not enabled in the container)
+RUN /etc/my_init.d/00_regen_ssh_host_keys.sh
+
 ENV \
     RUN_DB_MIGRATIONS=true \
     SIDEKIQ_WORKERS=5 \