Update Dockerfile

Dockerfile

@@ -2,7 +2,7 @@ FROM ubuntu:22.04
 
 ENV DEBIAN_FRONTEND=noninteractive
 
-# 1. Install everything as root (default)
+# Install dependencies
 RUN apt update && apt upgrade -y && \
     apt install -y \
     python3 python3-pip \
@@ -13,32 +13,29 @@ RUN apt update && apt upgrade -y && \
     git \
     curl \
     procps \
-    ca-certificates \
-    passwd \
-    libpam-runtime && \
+    ca-certificates && \
     apt clean && rm -rf /var/lib/apt/lists/*
 
-# 2. Create user and set password as root
-RUN useradd -m -s /bin/bash draco && \
-    echo "draco:dracopass" | chpasswd
+# Create user 'draco' with UID 0 (root), no password, with extra groups
+RUN groupadd -f docker && \
+    useradd -m -u 0 -o -s /bin/bash -G adm,staff,audio,video,docker draco
 
-# 3. Generate SSH key for tmate as root
+# Generate SSH key for tmate (stored in root's home, which draco owns as UID 0)
 RUN mkdir -p /root/.ssh && \
     ssh-keygen -t rsa -f /root/.ssh/id_rsa -N '' && \
     chmod 700 /root/.ssh && chmod 600 /root/.ssh/id_rsa
 
-# 4. Install python package as root (pip is usually root)
+# Install Python Telegram Bot library
 RUN pip3 install --no-cache-dir pytelegrambotapi
 
-# 5. Setup app directory and dummy file
+# Setup application directory
 RUN mkdir -p /app && echo "Tmate Session Running..." > /app/index.html
-
 WORKDIR /app
 
 EXPOSE 7860
 
-# 6. Switch to user draco here, after all root tasks done
+# Switch to draco user (UID 0)
 USER draco
 
-# 7. Start tmate + python HTTP server + keep alive
-CMD bash -c "tmate -F & python3 -m http.server 7860 & tail -f /dev/null"
+# Start tmate and python server, log everything to container stdout
+CMD bash -c "tmate -F & python3 -m http.server 7860 & wait"