update lua and plugin path

Dockerfile

@@ -4,13 +4,15 @@ RUN apt-get update && \
     apt-get install ca-certificates extrepo -y && \
     extrepo enable prosody && \
     apt-get update && \
-    apt-get install prosody prosody-modules lua-luaossl -y
+    apt-get install prosody prosody-modules lua5.4 liblua5.4-dev lua-luaossl -y
 
 RUN mkdir -p /run/prosody/ && \
     chown -R prosody:prosody /run/prosody/
 
 RUN mkdir -p /etc/prosody/conf.d/
 
+RUN update-alternatives --set lua-interpreter /usr/bin/lua5.4
+
 RUN prosodyctl install --server=https://modules.prosody.im/rocks/ mod_cloud_notify_extensions
 
 COPY prosody.cfg.lua /etc/prosody/prosody.cfg.lua

prosody.cfg.lua

@@ -25,7 +25,7 @@ admins = { }
 -- This option allows you to specify additional locations where Prosody
 -- will search first for modules. For additional modules you can install, see
 -- the community module repository at https://modules.prosody.im/
---plugin_paths = {}
+plugin_paths = { "/var/lib/prosody/custom_plugins" }
 
 -- This is the list of modules Prosody will load on startup.
 -- Documentation for bundled modules can be found at: https://prosody.im/doc/modules