Update Dockerfile

Dockerfile

@@ -5,12 +5,14 @@ FROM ubuntu:latest
 ENV DEBIAN_FRONTEND=noninteractive
 
 # Install necessary packages
-RUN apt-get update && \
-    apt-get install -y \
+RUN apt update && \
+    apt install -y \
     curl \
     sudo \
     build-essential \
-    python3 \
+    python3.9 \
+    python3.9-venv \
+    python3.9-dev \
     python3-pip \
     default-jdk \
     default-jre \
@@ -31,6 +33,6 @@ USER coder
 EXPOSE 8080
 
 # Start code-server
-CMD ["code-server", "--bind-addr", "0.0.0.0:7860", "--auth", "none"]
+CMD ["code-server", "--bind-addr", "0.0.0.0:8080", "--auth", "none"]
 
 # End of Dockerfile