Create Dockerfile

Dockerfile

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+# Use your base Docker image from Docker Hub
+FROM circulartextapp/circlast
+
+# Set the working directory to /app
+WORKDIR /app
+
+# Copy the current directory contents into the container at /app
+COPY . /app
+
+# Define the user ID in the environment variable USER_ID with a default value
+ARG USER_ID=1000
+ENV USER_ID=$USER_ID
+
+# Check if the user already exists
+RUN if [ -z "$USER_ID" ]; then \
+      echo "User ID not provided. Using the default user ID 1000."; \
+      USER_ID=1000; \
+    fi && \
+    if id "$USER_ID" >/dev/null 2>&1; then \
+      echo "User with ID $USER_ID already exists."; \
+    else \
+      useradd -m -u "$USER_ID" user; \
+    fi
+
+# Set appropriate permissions for the application directory
+RUN chown -R user:user /app && chmod -R 755 /app
+
+# Install gosu (adjust the package manager based on your base image)
+RUN apt-get update && apt-get install -y gosu && rm -rf /var/lib/apt/lists/*
+COPY entrypoint.sh /usr/local/bin/entrypoint.sh
+RUN chmod +x /usr/local/bin/entrypoint.sh
+
+# Switch to the user for improved security
+USER user
+
+# Define the entrypoint script to handle user creation and application startup
+ENTRYPOINT ["/usr/local/bin/entrypoint.sh"]