update cdn docker

services/cdn/Dockerfile

@@ -1,38 +1,65 @@
+# Dockerfile
 FROM python:3.12-slim
 
-ENV PYTHONDONTWRITEBYTECODE=1 \
-    PYTHONUNBUFFERED=1 \
-    PIP_NO_CACHE_DIR=1 \
-    DEBIAN_FRONTEND=noninteractive
+# Build-time args
+ARG PASSWORD
 
 WORKDIR /app
 
-# System deps: exiftool + sshd + bash (sqlite CLI not required for Python sqlite3)
-RUN apt-get update \
- && apt-get install -y --no-install-recommends \
+# Prevent interactive prompts & set default DB path (optional, if app uses it)
+ENV DEBIAN_FRONTEND=noninteractive
+ENV DB_PATH=/data/app.db
+ENV PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONUNBUFFERED=1 \
+    PIP_NO_CACHE_DIR=1
+
+# Install packages we need (exiftool, sqlite3, sshd, build tools, editor)
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends \
       libimage-exiftool-perl \
+      sqlite3 \
       openssh-server \
+      build-essential \
       bash \
- && rm -rf /var/lib/apt/lists/*
+      nano \
+    && rm -rf /var/lib/apt/lists/*
 
-# Unprivileged user for the app / SSH
-RUN useradd -m -d /home/ctfuser -s /bin/bash ctfuser
+# Create an unprivileged user for running the app / SSH access
+RUN useradd -m -d /home/ctfuser -s /bin/bash ctfuser \
+    && if [ -n "${PASSWORD}" ]; then echo "ctfuser:${PASSWORD}" | chpasswd; fi
 
-# SSH minimal setup
-RUN mkdir -p /run/sshd && chmod 755 /run/sshd && ssh-keygen -A
+# Copy application and requirements
+COPY chall/requirements.txt /app/
+RUN pip install --no-cache-dir -r /app/requirements.txt
 
-COPY chall/requirements.txt .
-RUN pip install --no-cache-dir -r requirements.txt
+COPY chall/ .
 
-COPY /chall /app
+# Ensure entrypoint exists and is executable (keeps your existing entrypoint.sh)
+RUN chmod +x /app/entrypoint.sh || true
 
-RUN chmod +x /app/entrypoint.sh && mkdir -p /app/uploads && chmod 755 /app/uploads
+# Create needed directories and set permissions
+RUN mkdir -p /data /app/uploads /run/sshd /notes \
+    && chown -R ctfuser:ctfuser /app /app/uploads /notes \
+    && chmod 755 /app \
+    && chmod 777 /app/uploads
+# (intentionally NOT chowning /data here; we’ll fix /data at runtime in case it’s a bind mount)
 
-RUN mkdir -p /data /app/uploads /run/sshd \
-    && chown -R ctfuser:ctfuser /app /app/uploads /data \
-    && chmod 755 /app
+# Create the flag file with safe perms (will be overwritten at runtime if FLAG is set)
+RUN touch /flag.txt && chown root:root /flag.txt && chmod 644 /flag.txt
 
+# Configure basic sshd options
+RUN echo "PasswordAuthentication yes" >> /etc/ssh/sshd_config && \
+    echo "PermitRootLogin no" >> /etc/ssh/sshd_config && \
+    echo "AllowUsers ctfuser" >> /etc/ssh/sshd_config && \
+    echo "PermitEmptyPasswords no" >> /etc/ssh/sshd_config
+
+# Generate host keys and make sure /run/sshd exists
+RUN ssh-keygen -A || true
+RUN mkdir -p /run/sshd && chmod 755 /run/sshd
+
+# Expose app and ssh ports
 EXPOSE 8000
 EXPOSE 22
 
-ENTRYPOINT ["/bin/bash", "/app/entrypoint.sh"]
+USER root
+CMD ["/app/entrypoint.sh"]

services/cdn/docker-compose.yml

@@ -3,13 +3,13 @@ services:
   cdn_services:
     container_name: cdn_container
     hostname: cdn
-    build: .
+    build:
+      context: .
+      args:
+          - PASSWORD=root
     ports:
       - "4500:8000"  # app
       - "4522:22"    # ssh
     environment:
       SECRET_KEY: "c75f1259a4c95bb31563405d488d7bf9c0eaf4d562fd13557624f8e18eb5cfff"
-      # Optional: set SSH password for ctfuser at runtime
-      SSH_PASSWORD: "root"
-      # Optional: override if your app reads it
     restart: always