Update Dockerfile

Dockerfile

@@ -1,24 +1,23 @@
 FROM prom/prometheus:latest
 
-# 1. Run as root to avoid any permission issues
+# 1. Run as root
 USER root
 
 WORKDIR /app
 
-# 2. Copy your configuration
+# 2. Copy config
 COPY turing_cloud.yml /app/turing_cloud.yml
 
-# 3. CRITICAL: Force the entrypoint to be a shell.
-#    This allows us to run complex commands and expand variables like $PORT.
+# 3. Reset Entrypoint
 ENTRYPOINT ["/bin/sh", "-c"]
 
-# 4. The Startup Command
-#    We use 'sed' to update the config file with the correct port dynamically.
-#    Then we start Prometheus, forcing it to listen on 0.0.0.0 (IPv4).
-CMD ["echo 'System starting on PORT: '$PORT && \
-      sed -i \"s/localhost:7860/localhost:$PORT/g\" /app/turing_cloud.yml && \
+# 4. Startup Command with Fallback
+#    ${PORT:-7860} means: "Use $PORT if it exists; otherwise use 7860".
+CMD ["export RUN_PORT=${PORT:-7860} && \
+      echo 'System starting on PORT: '$RUN_PORT && \
+      sed -i \"s/localhost:7860/localhost:$RUN_PORT/g\" /app/turing_cloud.yml && \
       /bin/prometheus \
       --config.file=/app/turing_cloud.yml \
-      --web.listen-address=0.0.0.0:$PORT \
+      --web.listen-address=0.0.0.0:$RUN_PORT \
       --storage.tsdb.path=/prometheus \
       --web.enable-lifecycle"]