Add prod to git, move back to no-one user in server docker container

Dockerfile

@@ -69,8 +69,7 @@ ENV MIX_ENV="prod"
 COPY --from=builder --chown=nobody:root /app/_build/${MIX_ENV}/rel/chessh ./
 COPY --from=builder --chown=nobody:root /app/priv /app/priv
 
-# USER nobody
-USER root
+USER nobody
 
 EXPOSE 8080
 EXPOSE 34355

config/.gitignore

@@ -1 +0,0 @@
-prod.exs

config/prod.exs

@@ -0,0 +1,12 @@
+import Config
+
+config :logger,
+  level: :warning,
+  truncate: 4096
+
+config :chessh, RateLimits,
+  jail_timeout_ms: 5 * 60 * 1000,
+  jail_attempt_threshold: 15,
+  max_concurrent_user_sessions: 5,
+  player_session_message_burst_ms: 750,
+  player_session_message_burst_rate: 8