Update Dockerfile

Dockerfile

@@ -1,13 +1,23 @@
 # Use the specified image from Docker Hub
 FROM williamjackson/excalibur:0.4.3
 
-# Set the working directory
+# Set the working directory inside the container
 WORKDIR /excalibur
 
 # Create a volume for your data directory (local path on your machine)
 VOLUME ["~/excalibur-data"]
 
+# Set environment variables to define the config file path
+ENV EXCALIBUR_CONFIG=/excalibur/excalibur.cfg
+
+# Ensure the /excalibur directory and the configuration file are writable
+RUN chmod -R 755 /excalibur && \
+    touch /excalibur/excalibur.cfg && \
+    chmod u+w /excalibur/excalibur.cfg
+
 # Initialize the database (this will be run when the container starts)
 CMD ["initdb"]
+
+# Optionally, add any other necessary commands here, such as:
 CMD docker pull alexeiled/docker-oracle-xe-11g
-CMD docker run -v ~/excalibur-data:/excalibur excalibur-image
+CMD docker run -v ~/excalibur-data:/excalibur excalibur-image