Chain the initial start commands rather than forking them all.

Config/Prosody/Dockerfile

@@ -24,8 +24,8 @@ RUN rm -rfv /etc/prosody/README*
 # Install + Run Website
 WORKDIR /root
 USER root
-CMD prosodyctl cert import /etc/letsencrypt/live & \
-		service prosody start & \
-		prosodyctl reload & \
+CMD prosodyctl cert import /etc/letsencrypt/live && \
+		service prosody start && \
+		prosodyctl reload && \
 		tail -F /var/log/prosody/prosody.log & \
 		tail -F /var/log/prosody/prosody.err