Added Nbgrader

2025-07-15 18:40:59 +02:00
parent a6db921bea
commit d7e7733166
25 changed files with 1354 additions and 17 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -0,0 +1,22 @@
+# --- This Project ---#
+data/
+logs/
+.env
+
+# Docker secrets
+/secrets/
+*.secret
+*.key
+*.pem
+*.crt
+
+# --- OS & Temp Files ---
+.DS_Store
+Thumbs.db
+*.swp
+*.swo
+*.tmp
+*~
+~$*
+
+
--- a/compose.override.yml
+++ b/compose.override.yml
@@ -0,0 +1,39 @@
+services:
+  jupyterhub:
+    container_name: ${COMPOSE_PROJECT_NAME}-jupyterhub
+    environment:
+      - POSTGRES_HOST=postgres 
+      - POSTGRES_DB=${POSTGRES_DB}
+      - POSTGRES_USER=${POSTGRES_USER}
+      - POSTGRES_PASSWORD=${POSTGRES_PASSWORD}
+        
+      - JUPYTERHUB_CRYPT_KEY=${JUPYTERHUB_CRYPT_KEY}
+      - DOCKER_NETWORK_NAME=${DOCKER_NETWORK_NAME}
+      - NBGRADER_DB_URL=postgresql://${POSTGRES_USER}:${POSTGRES_PASSWORD}@postgres:5432/${NBGRADER_DB}
+    ports:
+      - ${JUPYTERHUB_PORT:-8000}:8000
+    volumes:
+      - ./data/jupyter:/srv/jupyterhub/data
+    networks:
+      - jupyterhub-network
+    depends_on:
+      - postgres 
+
+  postgres:
+    container_name: ${COMPOSE_PROJECT_NAME}-postgres
+    ports:
+      - ${POSTGRES_PORT:-5432}:5432
+    volumes:
+      - postgres_data:/var/lib/postgresql/data
+    networks:
+      - jupyterhub-network
+  
+  nginx:
+    container_name: ${COMPOSE_PROJECT_NAME}-nginx
+    ports:
+      - ${NGINX_HTTP_PORT:-80}:80 
+      - ${NGINX_HTTPS_PORT:-443}:443
+    networks:
+      - jupyterhub-network
+    depends_on:
+      - jupyterhub 
--- a/compose.yml
+++ b/compose.yml
@@ -0,0 +1,10 @@
+include: 
+  - jupyterhub/compose.yml
+  - postgres/compose.yml
+  - nginx/compose.yml
+
+networks:
+  jupyterhub-network:
+    name: ${DOCKER_NETWORK_NAME:-jupyterhub-network}
+    driver: bridge
+    attachable: true
--- a/flake.lock
+++ b/flake.lock
@@ -0,0 +1,61 @@
+{
+  "nodes": {
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1731533236,
+        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1750776420,
+        "narHash": "sha256-/CG+w0o0oJ5itVklOoLbdn2dGB0wbZVOoDm4np6w09A=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "30a61f056ac492e3b7cdcb69c1e6abdcf00e39cf",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
--- a/flake.nix
+++ b/flake.nix
@@ -0,0 +1,161 @@
+{
+    description = "Docker JupyterHub development environment";
+
+    inputs = {
+        nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+        flake-utils.url = "github:numtide/flake-utils";
+    };
+
+    outputs = { self, nixpkgs, flake-utils, ... }:
+        flake-utils.lib.eachDefaultSystem (system:
+        let
+            pkgs = nixpkgs.legacyPackages.${system};
+
+            app = {
+                setup-dev = pkgs.writeShellScriptBin "setup-dev" ''
+                    echo "Setting up basic Project Structure"
+                    echo "----------------------------------"
+                    echo "Setting up logs directory"
+                    mkdir -p logs
+                    mkdir -p logs/nginx 
+                    mkdir -p logs/jupyterhub 
+                    mkdir -p logs/postgres
+                    echo "Logs Directory:"
+                    tree logs/
+                    echo ""
+                    echo "Setting up jupyter-data"
+                    mkdir -p jupyter-data/nbgrader/courses/example-course/{autograded,feedback,release,source/assigment1,submitted}
+                    mkdir -p jupyter-data/nbgrader/{exchange,users}
+                    cat > jupyter-data/nbgrader/courses/example-course/source/assigment1/sample.ipynb << 'EOL' 
+                    {
+                        "cells": [
+                            {
+                                "cell_type": "markdown",
+                                "metadata": {},
+                                "source": [
+                                    "# Sample Notebook\n",
+                                    "## Created with Bash\n",
+                                    "\n",
+                                    "This Jupyter notebook was generated automatically using a bash script."
+                                ]
+                            },
+                            {
+                                "cell_type": "code",
+                                "execution_count": null,
+                                "metadata": {},
+                                "outputs": [],
+                                "source": [
+                                    "# Python code example\n",
+                                    "import numpy as np\n",
+                                    "import matplotlib.pyplot as plt\n",
+                                    "\n",
+                                    "x = np.linspace(0, 10, 100)\n",
+                                    "y = np.sin(x)\n",
+                                    "\n",
+                                    "plt.plot(x, y)\n",
+                                    "plt.title('Sine Wave')\n",
+                                    "plt.show()"
+                                ]
+                            },
+                            {
+                                "cell_type": "markdown",
+                                "metadata": {},
+                                "source": [
+                                    "## Next Steps\n",
+                                    "\n",
+                                    "- Run the code cells\n",
+                                    "- Add more cells\n",
+                                    "- Experiment with different Python libraries"
+                                ]
+                            }
+                        ],
+                        "metadata": {
+                            "kernelspec": {
+                                "display_name": "Python 3",
+                                "language": "python",
+                                "name": "python3"
+                            },
+                            "language_info": {
+                                "codemirror_mode": {
+                                    "name": "ipython",
+                                    "version": 3
+                                },
+                            "file_extension": ".py",
+                            "mimetype": "text/x-python",
+                            "name": "python",
+                            "nbconvert_exporter": "python",
+                            "pygments_lexer": "ipython3",
+                            "version": "3.8.5"
+                            }
+                        },
+                        "nbformat": 4,
+                        "nbformat_minor": 4
+                    }
+                    EOL
+                    echo "jupyter-data Directory:"
+                    tree jupyter-data
+                '';
+                
+                storage = pkgs.writeShellScriptBin "storage" ''
+                    echo "Creating storage"
+                    mkdir -p storage/{jupyter,postgres}
+                    chmod -R 644 storage/
+                '';
+
+                build = pkgs.writeShellScriptBin "build" ''
+                    echo "Building all Containers"
+                '';
+
+                clean = pkgs.writeShellScriptBin "clean" ''
+                    echo "Cleaning Project"
+                    echo "----------------------------------"
+                    echo "Removing logs"
+                    rm -rf logs/
+                    echo "Removing jupyter-data"
+                    rm -rf jupyter-data/
+                '';
+
+                reset = pkgs.writeShellScriptBin "reset" ''
+                   ${app.clean}/bin/clean
+                   ${app.setup-dev}/bin/setup-dev
+                '';
+            };
+        in
+        {
+        devShells.default = pkgs.mkShell {
+            buildInputs = with pkgs; [
+                # For deployment/testing
+                docker
+                docker-compose
+
+                # Terminal Tools
+                tree
+            ] ++ (builtins.attrValues app);
+
+            shellHook = ''
+                echo "JupyterHub dev shell"
+                echo "------------------------------------"
+                echo "$(docker --version)"
+                echo "------------------------------------"
+                echo "Available commands:"
+                echo "  setup-dev - Set Up dev environment"
+                echo "  clean - Clean the Project"
+                echo "  reset - Reset project completly (Use with caution it whipes all generated Data)"
+            '';
+        };
+
+        apps = {
+            setup-dev = {
+                type = "app";
+                program = "${app.setup-dev}/bin/setup-dev";
+            };
+
+            build = {
+                type = "app";
+                program = "${app.build}/bin/build";
+            };
+            
+            default = self.apps.${system}.dev;
+        };
+    });
+}
--- a/hub/postgres/compose.yml
+++ b/hub/postgres/compose.yml
@@ -1,17 +0,0 @@
-services:
-  db:
-    image: postgres
-    restart: always
-    environment:
-      POSTRGES_PASSWORD: 123456
-    volumes:
-      - pgdata:/var/lib/postgresql/data
-
-  adminer:
-    image: adminer
-    restart: always 
-    ports:
-      - 8080:8080 
-
-volumes:
-  pgdata:
--- a/jupyter-share/compose.yml
+++ b/jupyter-share/compose.yml
--- a/jupyterhub/Dockerfile
+++ b/jupyterhub/Dockerfile
@@ -0,0 +1,48 @@
+FROM quay.io/jupyterhub/jupyterhub:latest
+
+# Install system dependencies
+USER root
+RUN apt-get update && apt-get install -y \
+    curl \
+    gnupg \
+    iproute2 \
+    iputils-ping \
+    netcat \
+    ca-certificates \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install Docker CLI (needed for DockerSpawner)
+RUN curl -fsSL https://download.docker.com/linux/ubuntu/gpg | gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg \
+    && echo "deb [arch=amd64 signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu focal stable" | tee /etc/apt/sources.list.d/docker.list > /dev/null \
+    && apt-get update \
+    && apt-get install -y docker-ce-cli \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install Required packages
+RUN pip install --no-cache-dir \
+        dockerspawner \
+        jupyterhub-nativeauthenticator \
+        jupyterhub-dummyauthenticator \
+        nbgrader \
+        psycopg2-binary
+
+RUN mkdir -p /srv/nbgrader/exchange
+RUN chmod -R 777 /srv/nbgrader/exchange
+RUN mkdir -p /srv/nbgrader/courses
+RUN chown -R 1000:100 /srv/nbgrader 
+
+#RUN jupyter nbextension install --sys-prefix --py nbgrader --overwrite
+#RUN jupyter nbextension enable --sys-prefix --py nbgrader
+#RUN jupyter serverextension enable --sys-prefix --py nbgrader
+
+# Set Workdir
+WORKDIR /srv/jupyterhub
+
+# Generate Cookie Secret
+RUN openssl rand -hex 32 > /srv/jupyterhub/cookie_secret
+RUN chmod 600 /srv/jupyterhub/cookie_secret
+#ENV JUPYTERHUB_AUTH_TOKEN=$(openssl rand -hex 32)
+
+EXPOSE 8000
+
+CMD ["jupyterhub", "-f", "/srv/jupyterhub/jupyterhub_config.py"]
--- a/jupyterhub/compose.yml
+++ b/jupyterhub/compose.yml
@@ -0,0 +1,15 @@
+services:
+  jupyterhub:
+    build: .
+    container_name: jupyterhub
+    restart: unless-stopped 
+    ports:
+      - 8000:8000
+    environment:
+      - JUPYTERHUB_LOG_LEVEL=DEBUG
+    volumes:
+      - /var/run/docker.sock:/var/run/docker.sock
+      - ./templates:/srv/jupyterhub/templates:ro
+      - ./jupyterhub_config.py:/srv/jupyterhub/jupyterhub_config.py
+      - ./nbgrader_config.py:/srv/nbgrader/courses/nbgrader_config.py
+      - ../logs/jupyterhub:/var/log/jupyterhub
--- a/jupyterhub/conf_test.py
+++ b/jupyterhub/conf_test.py
@@ -0,0 +1,9 @@
+c = get_config()
+
+c.JupyterHub.authenticator_class = "dummy"
+c.JupyterHub.spawner_class = "docker"
+c.JupyterHub.hub_ip = '0.0.0.0'
+c.JupyterHub.hub_connect_ip = 'jupyterhub'
+c.DockerSpawner.image = 'jupyter/base-notebook'
+c.DockerSpawner.network_name = 'stack_default'
+c.DockerSpawner.remove = True
--- a/jupyterhub/jupyterhub_config.py
+++ b/jupyterhub/jupyterhub_config.py
@@ -0,0 +1,227 @@
+import os
+import sys
+from dockerspawner import DockerSpawner
+from jupyterhub.utils import random_port
+from nativeauthenticator import NativeAuthenticator
+#from nbgrader.auth import JupyterHubAuthPlugin
+from traitlets import Unicode, Bool, Int, Float
+
+import secrets
+import string
+from datetime import datetime, timedelta
+from typing import Optional
+
+def generate_api_token(
+    length: int = 32,
+    prefix: Optional[str] = None,
+) -> dict:
+    """
+    Generate a secure random API token with optional prefix and expiration.
+    
+    Args:
+        length: Length of the token (default: 32)
+        prefix: Optional prefix for the token (e.g., 'hub_')
+        expiration_days: Optional expiration in days from now
+        
+    Returns:
+        - token: The generated token
+    """
+    # Generate cryptographically secure random string
+    alphabet = string.ascii_letters + string.digits
+    token = ''.join(secrets.choice(alphabet) for _ in range(length))
+    
+    # Add prefix if specified
+    if prefix:
+        token = f"{prefix}{token}"
+    
+    return token 
+
+import subprocess
+
+def is_service_available_cmd(host, port):
+    """Check service using system commands"""
+    try:
+        subprocess.run(
+            ['nc', '-z', host, str(port)],
+            check=True,
+            timeout=3,
+            stdout=subprocess.DEVNULL,
+            stderr=subprocess.DEVNULL
+        )
+        return True
+    except (subprocess.TimeoutExpired, subprocess.CalledProcessError):
+        return False
+
+# Configuration file for JupyterHub
+c = get_config()
+
+# Base URL configuration (The new way, dont use ip/port/bind_url attributes it throws a warning and is deprecated)
+port = int(os.environ.get('JUPYTERHUB_PORT', '8000'))
+base_url = os.environ.get('JUPYTERHUB_BASE_URL', '/jupyter/')
+c.JupyterHub.bind_url = f"http://0.0.0.0:{port}{base_url}"
+
+# Database configuration
+c.JupyterHub.db_url = f"postgresql://{os.environ['POSTGRES_USER']}:{os.environ['POSTGRES_PASSWORD']}@stack-{os.environ['POSTGRES_HOST']}:5432/{os.environ['POSTGRES_DB']}"
+#c.JupyterHub.db_url = 'sqlite:///jupyterhub.sqlite' 
+
+
+# Authenticator configuration - NativeAuthenticator
+c.JupyterHub.authenticator_class = NativeAuthenticator
+
+# Native Authenticator settings
+#c.NativeAuthenticator.create_system_users = True
+c.NativeAuthenticator.minimum_password_length = int(os.environ.get('NATIVE_AUTH_MIN_PASSWORD_LENGTH', '8'))
+c.NativeAuthenticator.check_common_password = True
+c.NativeAuthenticator.enable_signup = True
+c.NativeAuthenticator.ask_email_on_signup = False
+c.NativeAuthenticator.allow_2fa = False
+
+# Admin configuration
+admin_user = os.environ.get('JUPYTERHUB_ADMIN_USER', 'admin')
+c.Authenticator.admin_users = {admin_user, 'DerGrumpf'}
+c.Authenticator.any_allow_config = True
+c.Authenticator.allow_all = True
+
+# Custom logo and templates
+c.JupyterHub.logo_file = '/srv/jupyterhub/templates/logo.png'
+c.JupyterHub.template_paths = ['/etc/jupyterhub/templates']
+
+
+# Hub environment for containers
+c.JupyterHub.spawner_class = DockerSpawner
+c.Spawner.ip = '0.0.0.0'
+c.DockerSpawner.image = os.environ.get('NOTEBOOK_IMAGE', 'jupyter/scipy-notebook:latest')
+'''network_name = os.environ.get('DOCKER_NETWORK_NAME', 'stack_default')
+c.DockerSpawner.network_name = network_name 
+c.DockerSpawner.extra_host_config = {
+    'network_mode': network_name
+}
+c.DockerSpawner.remove = True 
+c.DockerSpawner.debug = True
+c.DockerSpawner.default_url = os.environ.get('SPAWNER_DEFAULT_URL', '/lab')
+c.DockerSpawner.use_internal_ip = True
+
+# Resources
+c.DockerSpawner.mem_limit = os.environ.get('NOTEBOOK_MEMORY_LIMIT', '500M')
+c.DockerSpawner.cpu_limit = float(os.environ.get('NOTEBOOK_CPU_LIMIT', '1.0'))
+
+# Volume
+c.DockerSpawner.volumes = {
+     '/var/run/docker.sock': '/var/run/docker.sock'
+#    './data/jupyter/users/{username}': '/home/jovyan/work',
+#    './data/jupyter/nbgrader/exchange': '/srv/nbgrader/exchange',
+#    './data/jupyter/nbgrader/courses': '/srv/nbgrader/courses',
+}
+
+c.DockerSpawner.notebook_dir = '/home/jovyan/work'
+
+# Container Environment 
+c.DockerSpawner.environment = {
+    'GRANT_SUDO': '0',
+    'JUPYTER_ENABLE_LAB': os.environ.get('ENABLE_LAB', '1'),
+    'JUPYTERHUB_SINGLEUSER_APP': 'jupyter_server.serverapp.ServerApp'
+}
+
+#c.DockerSpawner.hub_ip_connect = os.environ.get('HUB_IP', 'jupyterhub')
+#c.DockerSpawner.hub_port_connect = 8081
+
+def pre_spawn_hook(spawner):
+    """Create user directories before spawning"""
+    username = spawner.user.name 
+    user_dir = f"./data/jupyter/users/{username}"
+
+    import os 
+    import stat 
+
+    if not os.path.exists(user_dir):
+        os.makedirs(user_dir, mode=0o755, exist_ok=True)
+        os.chown(user_dir, 1000, 1000)
+
+    # TODO Nbgrader dirs 
+
+c.DockerSpawner.pre_spawn_hook = pre_spawn_hook
+'''
+
+'''
+# Services configuration for NBGrader
+c.JupyterHub.services = [
+    {
+        'name': 'nbgrader-formgrader',
+        'url': 'http://127.0.0.1:9999',
+        'command': [
+            'jupyter-nbgrader',
+            '--port=9999',
+            '--no-browser',
+            '--log-level=INFO'
+        ],
+        'cwd': '/srv/jupyterhub/courses',
+        'user': 'root',
+        'environment': {
+            'PYTHONPATH': '/srv/nbgrader',
+            'NBGRADER_CONFIG_FILE': '/srv/jupyterhub/nbgrader/nbgrader_config.py'
+        }
+    }
+]
+'''
+'''
+# NBGrader configuration
+c.JupyterHub.load_groups = {
+    'nbgrader-instructors': ['instructor'],
+    'nbgrader-students': []
+}
+'''
+'''
+# NBGrader Config 
+c.JupyterHub.services = [
+    {
+        'name': 'nbgrader-formgrader',
+        'url': 'http://127.0.0.1:9999',
+        'api_token': generate_api_token(prefix='nbgrader'),
+        'command': [
+            'python', '-m', 'nbgrader', 'formgrader',
+            #'--port=9999',
+            #'--no-browser',
+            '--log-level=INFO',
+            #'--base_url=/jupyter/services/nbgrader-formgrader',
+            '--debug'
+        ],
+        'environment': {
+            'JUPYTERHUB_SERVICE_URL': 'http://127.0.0.1:8081/jupyter/hub/api',
+            'NBGRADER_CONFIG_FILE': '/srv/nbgrader/nbgrader_config.py',
+            'PYTHONPATH': '/srv/nbgrader'
+        },
+        'cwd': '/srv/nbgrader/courses',
+        'user': 'root'
+    }
+]
+'''
+
+# Security settings
+c.JupyterHub.cookie_secret_file = '/srv/jupyterhub/cookie_secret'
+c.ConfigurableHTTPProxy.auth_token = os.environ.get('JUPYTERHUB_AUTH_TOKEN', '')
+
+# Logging
+c.JupyterHub.log_level = os.environ.get('LOG_LEVEL', 'INFO')
+
+# Shutdown settings
+c.JupyterHub.shutdown_on_logout = False
+c.JupyterHub.cleanup_servers = True
+
+# Timeout settings
+c.JupyterHub.active_server_limit = 0
+c.JupyterHub.concurrent_spawn_limit = 10
+
+# Allow named servers
+c.JupyterHub.allow_named_servers = True
+c.JupyterHub.named_server_limit_per_user = 3
+
+print("JupyterHub configuration loaded successfully!")
+print(f"Base URL: {c.JupyterHub.base_url}")
+print(f"Bind URL: {c.JupyterHub.bind_url}")
+print(f"Database URL: {c.JupyterHub.db_url}")
+print(f"Docker Network: {c.DockerSpawner.network_name}")
+print(f"Docker Image: {c.DockerSpawner.image}")
+print("Postgres available", is_service_available_cmd("postgres", 5432))
+
+with open("/srv/jupyterhub/cookie_secret") as f:
+    print(f.readlines())
--- a/jupyterhub/nbgrader/nbgrader_config.py
+++ b/jupyterhub/nbgrader/nbgrader_config.py
@@ -0,0 +1,30 @@
+# /srv/nbgrader/nbgrader_config.py
+c = get_config()
+
+# 1. Course Configuration
+c.CourseDirectory.course_id = "intro-to-python"  # Change to your course name
+c.CourseDirectory.root = '/srv/nbgrader/courses'
+
+# 2. Exchange Directory (for submitting/collecting assignments)
+c.Exchange.root = '/srv/nbgrader/exchange'
+c.Exchange.path_includes_course = True
+
+# 3. JupyterHub Integration
+#c.NbGrader.hub_url = 'http://jupyterhub:8081/hub/api'
+#c.NbGrader.hubapi_token = 'your-hub-token'  # Generate with: openssl rand -hex 32
+
+# 4. Database Configuration
+c.StudentAssignmentNotebook.database_url = 'sqlite:////srv/nbgrader/nbgrader.sqlite'
+
+# 5. Assignment Policies
+c.ExecutePreprocessor.timeout = 300  # 5 minutes timeout per cell
+c.ClearSolutions.code_stub = "# YOUR CODE HERE"
+c.ClearSolutions.text_stub = "YOUR ANSWER HERE"
+
+# 6. Formgrader UI Settings
+c.FormgradeApp.port = 9999
+c.FormgradeApp.authenticator_class = 'nbgrader.auth.hubauth.HubAuth'
+c.FormgradeApp.ip = '0.0.0.0'
+
+# 7. Permissions
+c.CourseDirectory.groupshared = True
--- a/jupyterhub/nbgrader_config.py
+++ b/jupyterhub/nbgrader_config.py
@@ -0,0 +1,30 @@
+# /srv/nbgrader/nbgrader_config.py
+c = get_config()
+
+# 1. Course Configuration
+c.CourseDirectory.course_id = "intro-to-python"  # Change to your course name
+c.CourseDirectory.root = '/srv/nbgrader/courses'
+
+# 2. Exchange Directory (for submitting/collecting assignments)
+c.Exchange.root = '/srv/nbgrader/exchange'
+c.Exchange.path_includes_course = True
+
+# 3. JupyterHub Integration
+#c.NbGrader.hub_url = 'http://jupyterhub:8081/hub/api'
+#c.NbGrader.hubapi_token = 'your-hub-token'  # Generate with: openssl rand -hex 32
+
+# 4. Database Configuration
+c.StudentAssignmentNotebook.database_url = 'sqlite:////srv/nbgrader/nbgrader.sqlite'
+
+# 5. Assignment Policies
+c.ExecutePreprocessor.timeout = 300  # 5 minutes timeout per cell
+c.ClearSolutions.code_stub = "# YOUR CODE HERE"
+c.ClearSolutions.text_stub = "YOUR ANSWER HERE"
+
+# 6. Formgrader UI Settings
+c.FormgradeApp.port = 9999
+c.FormgradeApp.authenticator_class = 'nbgrader.auth.hubauth.HubAuth'
+c.FormgradeApp.ip = '0.0.0.0'
+
+# 7. Permissions
+c.CourseDirectory.groupshared = True
--- a/jupyterhub/templates/login.html
+++ b/jupyterhub/templates/login.html
@@ -0,0 +1,74 @@
+{% extends "templates/page.html" %}
+
+{% block login %}
+<div class="container login-container">
+    <div class="row">
+        <div class="col-md-6 col-md-offset-3">
+            <div class="login-panel panel panel-default">
+                <div class="panel-heading">
+                    <h3 class="panel-title">Welcome to JupyterHub</h3>
+                </div>
+                <div class="panel-body">
+                    <form action="{{authenticator_login_url}}" method="post" role="form">
+                        <div class="form-group">
+                            <label for="username_input">User</label>
+                            <input
+                                id="username_input"
+                                type="text"
+                                class="form-control"
+                                name="username"
+                                autocapitalize="off"
+                                autocorrect="off"
+                                required
+                            />
+                        </div>
+                        <div class="form-group">
+                            <label for="password_input">Password</label>
+                            <input
+                                id="password_input"
+                                type="password"
+                                class="form-control"
+                                name="password"
+                                required
+                            />
+                        </div>
+                        <div class="form-group">
+                            <input
+                                type="submit"
+                                id="login_submit"
+                                class="btn btn-jupyter btn-lg btn-block"
+                                value="Sign In"
+                            />
+                        </div>
+                        {% if login_error %}
+                        <div class="alert alert-danger" role="alert">
+                            {{login_error}}
+                        </div>
+                        {% endif %}
+                    </form>
+                    {% if authenticator.enable_signup %}
+                    <div class="text-center">
+                        <p>Don't have an account? <a href="{{authenticator_signup_url}}">Sign up</a></p>
+                    </div>
+                    {% endif %}
+                </div>
+            </div>
+        </div>
+    </div>
+</div>
+{% endblock login %}
+
+<style>
+.btn-jupyter {
+    background-color: #FFFFFF;
+    color: white;
+    border-color: #F37626;
+}
+.btn-jupyter:hover {
+    background-color: #D85F1C;
+    border-color: #D85F1C;
+}
+.login-container {
+    margin-top: 50px;
+}
+</style>
--- a/jupyterhub/templates/logo.png
+++ b/jupyterhub/templates/logo.png
--- a/jupyterhub/templates/page.html
+++ b/jupyterhub/templates/page.html
@@ -0,0 +1,61 @@
+<!DOCTYPE html>
+<html lang="en" data-bs-theme="light">
+<head>
+    <meta charset="utf-8">
+    <title>JupyterHub</title>
+    <meta http-equiv="X-UA-Compatible" content="chrome=1">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    
+      <link rel="stylesheet" href="/jupyter/hub/static/css/style.min.css?v=90495ca2cd6745c4b19a42dfd4b244ac5ca697ae76bf6f58a465da54045d2e0032f25207e2ebe4df838e4d7bd40c183228f28bbacc2456fe706797438809f749" type="text/css">
+    
+    
+      <link rel="icon" href="/jupyter/hub/static/favicon.ico?v=fde5757cd3892b979919d3b1faa88a410f28829feb5ba22b6cf069f2c6c98675fceef90f932e49b510e74d65c681d5846b943e7f7cc1b41867422f0481085c1f" type="image/x-icon">
+    
+    
+      <script src="/jupyter/hub/static/components/bootstrap/dist/js/bootstrap.bundle.min.js?v=ecf8bfa2d7656db091f8b9d6f85ecfc057120c93ae5090773b1b441db838bd232fcef26375ee0fa35bf8051f4675cf5a5cd50d155518f922b9d70593f161741a" type="text/javascript" charset="utf-8"></script>
+      <script src="/jupyter/hub/static/components/requirejs/require.js?v=1ff44af658602d913b22fca97c78f98945f47e76dacf9800f32f35350f05e9acda6dc710b8501579076f3980de02f02c97f5994ce1a9864c21865a42262d79ec" type="text/javascript" charset="utf-8"></script>
+      <script src="/jupyter/hub/static/components/jquery/dist/jquery.min.js?v=bf6089ed4698cb8270a8b0c8ad9508ff886a7a842278e98064d5c1790ca3a36d5d69d9f047ef196882554fc104da2c88eb5395f1ee8cf0f3f6ff8869408350fe" type="text/javascript" charset="utf-8"></script>
+      <script src="/jupyter/hub/static/js/darkmode.js?v=2fd9a7d11ad78df9351fed40ab35eab52e1e6a3d516f188b652120e6faf57b8e387a30aae8f52a6fb51563d06d04545c7005da0b77a98c21b0bd28f6d1cdfa11" type="text/javascript" charset="utf-8"></script>
+    
+    
+    
+    <script type="text/javascript">
+      require.config({
+        
+        urlArgs: "v=20250711124117",
+        
+        baseUrl: '/jupyter/hub/static/js',
+        paths: {
+          components: '../components',
+          jquery: '../components/jquery/dist/jquery.min',
+          moment: "../components/moment/moment",
+        },
+      });
+
+      window.jhdata = {
+        base_url: "/jupyter/hub/",
+        prefix: "/jupyter/",
+        
+        
+        admin_access: false,
+        
+        
+        options_form: false,
+        
+        xsrf_token: "MnwxOjB8MTA6MTc1MjIzNzY4Nnw1Ol94c3JmfDY4OlRtOXVaVHA1TFdsUGJHbHhVa1pSTlZCbWFrbEdjWGhYU1dKUFNVSnVURTlVVkdsTllUQkJYMXBJWmpadGJFUjNQUT09fDlkOTc3NzE2YjVkNGVhZjZjYzE5NWFmMGI3MTE3ZjNjNzVlM2IzYmNmM2M3YWU4YjQ3ZTQ5YmVlZTk5MjYxZWQ",
+      };
+
+</script>
+    
+    
+      <meta name="description" content="JupyterHub">
+      <meta name="keywords" content="Jupyter, JupyterHub">
+    
+</head>
+<body>
+    <noscript>
+        <div id ='noscript'>Jupyterhub requires JavaScript.</div>   
+    </noscript>
+    Hello
+</body>
+</html>
--- a/jupyterhub/templates/signup.html
+++ b/jupyterhub/templates/signup.html
@@ -0,0 +1,82 @@
+{% extends "templates/page.html" %}
+
+{% block login %}
+<div class="container login-container">
+    <div class="row">
+        <div class="col-md-6 col-md-offset-3">
+            <div class="login-panel panel panel-default">
+                <div class="panel-heading">
+                    <h3 class="panel-title">Create Account</h3>
+                </div>
+                <div class="panel-body">
+                    <form action="{{authenticator_signup_url}}" method="post" role="form">
+                        <div class="form-group">
+                            <label for="username_input">Username</label>
+                            <input
+                                id="username_input"
+                                type="text"
+                                class="form-control"
+                                name="username"
+                                autocapitalize="off"
+                                autocorrect="off"
+                                required
+                            />
+                        </div>
+                        <div class="form-group">
+                            <label for="password_input">Password (min. 8 characters)</label>
+                            <input
+                                id="password_input"
+                                type="password"
+                                class="form-control"
+                                name="password"
+                                required
+                            />
+                        </div>
+                        <div class="form-group">
+                            <label for="password_confirm">Confirm Password</label>
+                            <input
+                                id="password_confirm"
+                                type="password"
+                                class="form-control"
+                                name="password_confirmation"
+                                required
+                            />
+                        </div>
+                        <div class="form-group">
+                            <input
+                                type="submit"
+                                id="signup_submit"
+                                class="btn btn-jupyter btn-lg btn-block"
+                                value="Create Account"
+                            />
+                        </div>
+                        {% if signup_error %}
+                        <div class="alert alert-danger" role="alert">
+                            {{signup_error}}
+                        </div>
+                        {% endif %}
+                    </form>
+                    <div class="text-center">
+                        <p>Already have an account? <a href="{{authenticator_login_url}}">Sign in</a></p>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </div>
+</div>
+{% endblock login %}
+
+<style>
+.btn-jupyter {
+    background-color: #F37626;
+    color: white;
+    border-color: #F37626;
+}
+.btn-jupyter:hover {
+    background-color: #D85F1C;
+    border-color: #D85F1C;
+}
+.login-container {
+    margin-top: 50px;
+}
+</style>
--- a/nginx/compose.yml
+++ b/nginx/compose.yml
@@ -0,0 +1,15 @@
+services:
+  nginx:
+    image: nginx:alpine
+    container_name: nginx
+    restart: unless-stopped 
+    ports:
+      - 8080:80
+      - 8443:443
+    volumes:
+      - ./nginx.conf:/etc/nginx/nginx.conf:ro
+      - ./conf.d:/etc/nginx/conf.d:ro
+      - ./snippets:/etc/nginx/snippets:ro
+      - ./ssl:/etc/nginx/ssl:ro
+      - ../logs/nginx:/etc/log/nginx
+      - ./discord.html:/var/www/static/index.html:ro
--- a/nginx/conf.d/jupyterhub.conf
+++ b/nginx/conf.d/jupyterhub.conf
@@ -0,0 +1,43 @@
+# Shared proxy headers
+include /etc/nginx/snippets/proxy-headers.conf;
+
+server {
+    listen 80 default_server;
+    server_name _;
+
+    location /jupyter/ {
+        proxy_pass http://jupyterhub:8000/;  # Docker service name
+        
+        # Apply shared proxy headers
+        include /etc/nginx/snippets/proxy-headers.conf;
+        
+        # Special WebSocket timeout
+        proxy_read_timeout 86400;
+    }
+
+    # Redirect /jupyter to /jupyter/
+    location = /jupyter {
+        return 302 /jupyter/;
+    }
+
+
+    # Stativ site conf
+    root /var/www/static;
+    index index.html;
+
+    location / {
+        try_files $uri $uri/ =404;
+    }
+
+    # Cache static assets
+    location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg)$ {
+        expires 30d;
+        add_header Cache-Control "public, no-transform";
+    }
+
+    # Deny access to hidden files
+    location ~ /\. {
+        deny all;
+    }
+
+}
--- a/nginx/discord.html
+++ b/nginx/discord.html
@@ -0,0 +1,360 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Discord Mod Simulator 2025</title>
+    <style>
+        body {
+            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
+            background-color: #36393f;
+            color: #dcddde;
+            max-width: 800px;
+            margin: 0 auto;
+            padding: 20px;
+        }
+        #game-container {
+            background-color: #2f3136;
+            border-radius: 8px;
+            padding: 20px;
+            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
+        }
+        #status-bar {
+            display: flex;
+            justify-content: space-between;
+            margin-bottom: 20px;
+            padding: 10px;
+            background-color: #202225;
+            border-radius: 5px;
+        }
+        .stat {
+            display: flex;
+            flex-direction: column;
+            align-items: center;
+        }
+        #event-display {
+            min-height: 150px;
+            padding: 15px;
+            background-color: #40444b;
+            border-radius: 5px;
+            margin-bottom: 20px;
+            white-space: pre-wrap;
+        }
+        #actions {
+            display: grid;
+            grid-template-columns: 1fr 1fr;
+            gap: 10px;
+        }
+        button {
+            background-color: #5865f2;
+            color: white;
+            border: none;
+            padding: 10px;
+            border-radius: 5px;
+            cursor: pointer;
+            transition: background-color 0.2s;
+        }
+        button:hover {
+            background-color: #4752c4;
+        }
+        button:disabled {
+            background-color: #4f545c;
+            cursor: not-allowed;
+        }
+        #log {
+            margin-top: 20px;
+            max-height: 200px;
+            overflow-y: auto;
+            padding: 10px;
+            background-color: #40444b;
+            border-radius: 5px;
+            font-size: 0.9em;
+        }
+        .log-entry {
+            margin-bottom: 5px;
+            border-bottom: 1px solid #4f545c;
+            padding-bottom: 5px;
+        }
+        .positive {
+            color: #3ba55c;
+        }
+        .negative {
+            color: #ed4245;
+        }
+        .warning {
+            color: #faa61a;
+        }
+    </style>
+</head>
+<body>
+    <div id="game-container">
+        <h1>Discord Mod Simulator 2025</h1>
+        <div id="status-bar">
+            <div class="stat">
+                <span>Members</span>
+                <span id="members">1000</span>
+            </div>
+            <div class="stat">
+                <span>Activity</span>
+                <span id="activity">50%</span>
+            </div>
+            <div class="stat">
+                <span>Reputation</span>
+                <span id="reputation">50%</span>
+            </div>
+            <div class="stat">
+                <span>Day</span>
+                <span id="day">1</span>
+            </div>
+        </div>
+        
+        <div id="event-display">
+            Welcome to Discord Mod Simulator 2025! As a moderator, you must balance keeping the server active while maintaining order. Make your decisions carefully!
+        </div>
+        
+        <div id="actions">
+            <!-- Buttons will be generated by JavaScript -->
+        </div>
+        
+        <div id="log">
+            <div class="log-entry">Game started. Good luck!</div>
+        </div>
+    </div>
+
+    <script>
+        // Game state
+        const gameState = {
+            members: 1000,
+            activity: 50,
+            reputation: 50,
+            day: 1,
+            powerUps: {
+                adminBackup: 3,
+                muteAll: 2,
+                customRole: 3
+            },
+            gameOver: false
+        };
+
+        // Event database
+        const events = [
+            {
+                id: 'spam',
+                text: "User xX_SpamLord_Xx is posting rapid-fire memes in #general. What do you do?",
+                options: [
+                    { text: "Delete messages and warn", members: 0, activity: -5, reputation: 5 },
+                    { text: "Timeout for 1 hour", members: -10, activity: -10, reputation: 10 },
+                    { text: "Ban the user", members: -30, activity: -15, reputation: 15 },
+                    { text: "Ignore it", members: 5, activity: 10, reputation: -10 }
+                ]
+            },
+            {
+                id: 'argument',
+                text: "Two users are having a heated argument about which year had the best memes. It's getting personal.",
+                options: [
+                    { text: "Warn both users", members: 0, activity: -5, reputation: 5 },
+                    { text: "Timeout both for 30 minutes", members: -15, activity: -15, reputation: 10 },
+                    { text: "Create #debate channel and move them", members: 10, activity: 5, reputation: 15 },
+                    { text: "Let them fight", members: -20, activity: 20, reputation: -20 }
+                ]
+            },
+            {
+                id: 'raid',
+                text: "OH NO! The server is being raided by another community! Spam and offensive content is flooding in!",
+                options: [
+                    { text: "Use Mute All power-up (stops raid but lowers activity)", powerUp: 'muteAll', members: -50, activity: -30, reputation: 20 },
+                    { text: "Call Admin Backup", powerUp: 'adminBackup', members: -20, activity: -10, reputation: 10 },
+                    { text: "Ban raiders manually", members: -100, activity: -40, reputation: 5 },
+                    { text: "Do nothing (risky!)", members: -150, activity: -50, reputation: -30 }
+                ]
+            },
+            {
+                id: 'feature',
+                text: "A user suggests a great feature for the server that would require some moderator work to implement.",
+                options: [
+                    { text: "Implement the feature", members: 20, activity: 15, reputation: 10 },
+                    { text: "Say you'll consider it", members: 5, activity: 5, reputation: 5 },
+                    { text: "Reject the idea", members: -10, activity: -5, reputation: -5 },
+                    { text: "Create a poll for the community", members: 10, activity: 20, reputation: 15 }
+                ]
+            },
+            {
+                id: 'bot',
+                text: "The moderation bot is malfunctioning! It's randomly timing out users and missing actual rule violations.",
+                options: [
+                    { text: "Fix the bot (takes time)", members: -10, activity: -10, reputation: 20 },
+                    { text: "Disable the bot temporarily", members: 0, activity: 10, reputation: -10 },
+                    { text: "Blame the bot developer", members: -20, activity: -20, reputation: -20 },
+                    { text: "Use Custom Roles to help moderate", powerUp: 'customRole', members: 0, activity: 0, reputation: 15 }
+                ]
+            }
+        ];
+
+        // DOM elements
+        const membersEl = document.getElementById('members');
+        const activityEl = document.getElementById('activity');
+        const reputationEl = document.getElementById('reputation');
+        const dayEl = document.getElementById('day');
+        const eventDisplayEl = document.getElementById('event-display');
+        const actionsEl = document.getElementById('actions');
+        const logEl = document.getElementById('log');
+
+        // Update the UI with current game state
+        function updateUI() {
+            membersEl.textContent = gameState.members;
+            activityEl.textContent = `${gameState.activity}%`;
+            reputationEl.textContent = `${gameState.reputation}%`;
+            dayEl.textContent = gameState.day;
+            
+            // Update colors based on values
+            activityEl.className = gameState.activity < 30 ? 'negative' : gameState.activity > 70 ? 'positive' : '';
+            reputationEl.className = gameState.reputation < 30 ? 'negative' : gameState.reputation > 70 ? 'positive' : '';
+        }
+
+        // Add a message to the log
+        function addLog(message, type = '') {
+            const entry = document.createElement('div');
+            entry.className = `log-entry ${type}`;
+            entry.textContent = `Day ${gameState.day}: ${message}`;
+            logEl.appendChild(entry);
+            logEl.scrollTop = logEl.scrollHeight;
+        }
+
+        // Present a random event to the player
+        function presentEvent() {
+            if (gameState.gameOver) return;
+            
+            const event = events[Math.floor(Math.random() * events.length)];
+            eventDisplayEl.textContent = event.text;
+            
+            // Clear previous buttons
+            actionsEl.innerHTML = '';
+            
+            // Create new buttons for each option
+            event.options.forEach((option, index) => {
+                const button = document.createElement('button');
+                button.textContent = option.text;
+                
+                // Check if this option requires a power-up we don't have
+                if (option.powerUp && gameState.powerUps[option.powerUp] <= 0) {
+                    button.disabled = true;
+                    button.title = "No more uses left!";
+                }
+                
+                button.addEventListener('click', () => {
+                    handleChoice(option, event);
+                });
+                
+                actionsEl.appendChild(button);
+            });
+        }
+
+        // Handle player's choice
+        function handleChoice(option, event) {
+            // Use power-up if needed
+            if (option.powerUp) {
+                gameState.powerUps[option.powerUp]--;
+                addLog(`Used ${option.powerUp} power-up.`, 'warning');
+            }
+            
+            // Update game state
+            gameState.members += option.members || 0;
+            gameState.activity += option.activity || 0;
+            gameState.reputation += option.reputation || 0;
+            
+            // Ensure values stay within bounds
+            gameState.members = Math.max(0, gameState.members);
+            gameState.activity = Math.max(0, Math.min(100, gameState.activity));
+            gameState.reputation = Math.max(0, Math.min(100, gameState.reputation));
+            
+            // Log the result
+            let resultMessage = `You chose: ${option.text}. `;
+            if (option.members !== 0) {
+                resultMessage += `Members ${option.members > 0 ? '+' : ''}${option.members}. `;
+            }
+            if (option.activity !== 0) {
+                resultMessage += `Activity ${option.activity > 0 ? '+' : ''}${option.activity}%. `;
+            }
+            if (option.reputation !== 0) {
+                resultMessage += `Reputation ${option.reputation > 0 ? '+' : ''}${option.reputation}%. `;
+            }
+            
+            addLog(resultMessage.trim());
+            
+            // Advance to next day
+            gameState.day++;
+            
+            // Check win/lose conditions
+            checkGameState();
+            
+            // Update UI and present new event
+            updateUI();
+            
+            if (!gameState.gameOver) {
+                setTimeout(presentEvent, 1000);
+            }
+        }
+
+        // Check win/lose conditions
+        function checkGameState() {
+            if (gameState.members >= 10000 && gameState.reputation >= 75) {
+                eventDisplayEl.textContent = "CONGRATULATIONS! You've grown the server to 10,000 members with great reputation! You win!";
+                gameState.gameOver = true;
+                actionsEl.innerHTML = '<button onclick="location.reload()">Play Again</button>';
+                addLog("YOU WIN! Server is thriving!", 'positive');
+                return;
+            }
+            
+            if (gameState.members <= 100) {
+                eventDisplayEl.textContent = "GAME OVER! The server has died from lack of members. Maybe you were too strict?";
+                gameState.gameOver = true;
+                actionsEl.innerHTML = '<button onclick="location.reload()">Play Again</button>';
+                addLog("Game over - server died.", 'negative');
+                return;
+            }
+            
+            if (gameState.reputation <= 20) {
+                eventDisplayEl.textContent = "GAME OVER! The community revolted against your moderation and you were demoted.";
+                gameState.gameOver = true;
+                actionsEl.innerHTML = '<button onclick="location.reload()">Play Again</button>';
+                addLog("Game over - you were demoted.", 'negative');
+                return;
+            }
+            
+            if (gameState.reputation >= 90 && Math.random() < 0.3) {
+                addLog("The server owner promoted you to Admin for your great work!", 'positive');
+                gameState.powerUps.adminBackup += 2;
+            }
+            
+            // Random member growth based on reputation and activity
+            const growthFactor = (gameState.reputation / 100) * (gameState.activity / 100);
+            const randomGrowth = Math.floor(Math.random() * 20 * growthFactor);
+            if (randomGrowth > 0) {
+                gameState.members += randomGrowth;
+                addLog(`Server grew by ${randomGrowth} members organically!`, 'positive');
+            }
+            
+            // Random events
+            if (Math.random() < 0.2) {
+                const randomEvent = Math.random();
+                if (randomEvent < 0.3) {
+                    // Good event
+                    gameState.reputation += 5;
+                    addLog("A user complimented your moderation style in #feedback!", 'positive');
+                } else if (randomEvent < 0.6) {
+                    // Bad event
+                    gameState.activity -= 10;
+                    addLog("A popular meme channel went quiet for a day.", 'negative');
+                } else {
+                    // Neutral event
+                    addLog("Nothing particularly interesting happened today.");
+                }
+            }
+        }
+
+        // Initialize the game
+        updateUI();
+        presentEvent();
+    </script>
+</body>
+</html>
--- a/nginx/nginx.conf
+++ b/nginx/nginx.conf
@@ -0,0 +1,30 @@
+user  nginx;
+worker_processes  auto;
+
+error_log  /var/log/nginx/error.log warn;
+pid        /var/run/nginx.pid;
+
+events {
+    worker_connections  1024;
+}
+
+http {
+    include       /etc/nginx/mime.types;
+    default_type  application/octet-stream;
+
+    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
+                      '$status $body_bytes_sent "$http_referer" '
+                      '"$http_user_agent" "$http_x_forwarded_for"';
+
+    access_log  /var/log/nginx/access.log  main;
+
+    sendfile        on;
+    keepalive_timeout  65;
+
+    # Gzip compression
+    gzip  on;
+    gzip_types text/plain text/css application/json application/javascript text/xml;
+
+    # Include modular configs
+    include /etc/nginx/conf.d/*.conf;
+}
--- a/nginx/snippets/proxy-headers.conf
+++ b/nginx/snippets/proxy-headers.conf
@@ -0,0 +1,9 @@
+proxy_set_header Host $host;
+proxy_set_header X-Real-IP $remote_addr;
+proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+proxy_set_header X-Forwarded-Proto $scheme;
+
+# WebSocket support
+proxy_http_version 1.1;
+proxy_set_header Upgrade $http_upgrade;
+proxy_set_header Connection "upgrade";
--- a/postgres/compose.yml
+++ b/postgres/compose.yml
@@ -0,0 +1,22 @@
+services:
+  postgres:
+    image: postgres:15-alpine 
+    container_name: postgres
+    environment:
+      POSTGRES_HOST: postgres
+      POSTGRES_USER: ${POSTGRES_USER:-postgres}
+      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-postgres}  
+      POSTGRES_DB: ${POSTGRES_DB:-postgres}        
+    ports:
+      - 5432:5432  
+    volumes:
+      - postgres_data:/var/lib/postgresql/data  
+    restart: unless-stopped  
+    #healthcheck:
+    #  test: ["CMD-SHELL", "pg_isready -U postgres"]
+    #  interval: 5s
+    #  timeout: 5s
+    #  retries: 5
+
+volumes:
+  postgres_data:  # Named volume for data persistence
--- a/postgres/init-multiple-db.sh
+++ b/postgres/init-multiple-db.sh
--- a/postgres/postgresql.conf
+++ b/postgres/postgresql.conf
@@ -0,0 +1,6 @@
+log_destination = 'stderr'
+logging_collector = on
+log_directory = '/var/log/postgres'
+log_filename = 'postgresql-%Y-%m-%d.log'
+log_statement = 'all'
+log_rotation_age = 1d