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ProxmoxVE/docs/contribution/AI.md
CanbiZ b87fddbf6a Update contribution docs for fork setup and metadata
Revised documentation to standardize use of 'bash docs/contribution/setup-fork.sh --full' for fork configuration, clarified install script execution flow, and updated JSON metadata template and field references. Improved helper function docs, resource requirements, and category lists. Updated references and instructions throughout for consistency and accuracy.
2026-01-18 18:56:21 +01:00

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🤖 AI Contribution Guidelines for ProxmoxVE

This documentation is intended for all AI assistants (GitHub Copilot, Claude, ChatGPT, etc.) contributing to this project.

🎯 Core Principles

1. Maximum Use of tools.func Functions

We have an extensive library of helper functions. NEVER implement your own solutions when a function already exists!

2. No Pointless Variables

Only create variables when they:

  • Are used multiple times
  • Improve readability
  • Are intended for configuration

3. Consistent Script Structure

All scripts follow an identical structure. Deviations are not acceptable.

4. Bare-Metal Installation

We do NOT use Docker for our installation scripts. All applications are installed directly on the system.


📁 Script Types and Their Structure

CT Script (ct/AppName.sh)

#!/usr/bin/env bash
source <(curl -fsSL https://raw.githubusercontent.com/community-scripts/ProxmoxVE/main/misc/build.func)
# Copyright (c) 2021-2026 community-scripts ORG
# Author: AuthorName (GitHubUsername)
# License: MIT | https://github.com/community-scripts/ProxmoxVE/raw/main/LICENSE
# Source: https://application-url.com

APP="AppName"
var_tags="${var_tags:-tag1;tag2;tag3}"
var_cpu="${var_cpu:-2}"
var_ram="${var_ram:-2048}"
var_disk="${var_disk:-8}"
var_os="${var_os:-debian}"
var_version="${var_version:-13}"
var_unprivileged="${var_unprivileged:-1}"

header_info "$APP"
variables
color
catch_errors

function update_script() {
  header_info
  check_container_storage
  check_container_resources

  if [[ ! -d /opt/appname ]]; then
    msg_error "No ${APP} Installation Found!"
    exit
  fi

  if check_for_gh_release "appname" "YourUsername/YourRepo"; then
    msg_info "Stopping Service"
    systemctl stop appname
    msg_ok "Stopped Service"

    msg_info "Backing up Data"
    cp -r /opt/appname/data /opt/appname_data_backup
    msg_ok "Backed up Data"

    CLEAN_INSTALL=1 fetch_and_deploy_gh_release "appname" "owner/repo" "tarball" "latest" "/opt/appname"

    # Build steps...

    msg_info "Restoring Data"
    cp -r /opt/appname_data_backup/. /opt/appname/data
    rm -rf /opt/appname_data_backup
    msg_ok "Restored Data"

    msg_info "Starting Service"
    systemctl start appname
    msg_ok "Started Service"
    msg_ok "Updated successfully!"
  fi
  exit
}

start
build_container
description

msg_ok "Completed Successfully!\n"
echo -e "${CREATING}${GN}${APP} setup has been successfully initialized!${CL}"
echo -e "${INFO}${YW} Access it using the following URL:${CL}"
echo -e "${TAB}${GATEWAY}${BGN}http://${IP}:PORT${CL}"

Install Script (install/AppName-install.sh)

#!/usr/bin/env bash

# Copyright (c) 2021-2026 community-scripts ORG
# Author: AuthorName (GitHubUsername)
# License: MIT | https://github.com/community-scripts/ProxmoxVE/raw/main/LICENSE
# Source: https://application-url.com

source /dev/stdin <<<"$FUNCTIONS_FILE_PATH"
color
verb_ip6
catch_errors
setting_up_container
network_check
update_os

msg_info "Installing Dependencies"
$STD apt-get install -y \
  dependency1 \
  dependency2
msg_ok "Installed Dependencies"

# Runtime Setup (ALWAYS use our functions!)
NODE_VERSION="22" setup_nodejs
# or
PG_VERSION="16" setup_postgresql
# or
setup_uv
# etc.

fetch_and_deploy_gh_release "appname" "owner/repo" "tarball" "latest" "/opt/appname"

msg_info "Setting up Application"
cd /opt/appname
# Build/Setup Schritte...
msg_ok "Set up Application"

msg_info "Creating Service"
cat <<EOF >/etc/systemd/system/appname.service
[Unit]
Description=AppName Service
After=network.target

[Service]
Type=simple
User=root
WorkingDirectory=/opt/appname
ExecStart=/path/to/executable
Restart=on-failure
RestartSec=5

[Install]
WantedBy=multi-user.target
EOF
systemctl enable -q --now appname
msg_ok "Created Service"

motd_ssh
customize
cleanup_lxc

🔧 Available Helper Functions

Release Management

Function Description Example
fetch_and_deploy_gh_release Fetches and installs GitHub Release fetch_and_deploy_gh_release "app" "owner/repo"
check_for_gh_release Checks for new version if check_for_gh_release "app" "YourUsername/YourRepo"; then

Modes for fetch_and_deploy_gh_release:

# Tarball/Source (Standard)
fetch_and_deploy_gh_release "appname" "owner/repo"

# Binary (.deb)
fetch_and_deploy_gh_release "appname" "owner/repo" "binary"

# Prebuilt Archive
fetch_and_deploy_gh_release "appname" "owner/repo" "prebuild" "latest" "/opt/appname" "filename.tar.gz"

# Single Binary
fetch_and_deploy_gh_release "appname" "owner/repo" "singlefile" "latest" "/opt/appname" "binary-linux-amd64"

Clean Install Flag:

CLEAN_INSTALL=1 fetch_and_deploy_gh_release "appname" "owner/repo"

Runtime/Language Setup

Function Variable(s) Example
setup_nodejs NODE_VERSION, NODE_MODULE NODE_VERSION="22" setup_nodejs
setup_uv PYTHON_VERSION PYTHON_VERSION="3.12" setup_uv
setup_go GO_VERSION GO_VERSION="1.22" setup_go
setup_rust RUST_VERSION, RUST_CRATES RUST_CRATES="monolith" setup_rust
setup_ruby RUBY_VERSION RUBY_VERSION="3.3" setup_ruby
setup_java JAVA_VERSION JAVA_VERSION="21" setup_java
setup_php PHP_VERSION, PHP_MODULES PHP_VERSION="8.3" PHP_MODULES="redis,gd" setup_php

Database Setup

Function Variable(s) Example
setup_postgresql PG_VERSION, PG_MODULES PG_VERSION="16" setup_postgresql
setup_postgresql_db PG_DB_NAME, PG_DB_USER PG_DB_NAME="mydb" PG_DB_USER="myuser" setup_postgresql_db
setup_mariadb_db MARIADB_DB_NAME, MARIADB_DB_USER MARIADB_DB_NAME="mydb" setup_mariadb_db
setup_mysql MYSQL_VERSION setup_mysql
setup_mongodb MONGO_VERSION setup_mongodb
setup_clickhouse - setup_clickhouse

Tools & Utilities

Function Description
setup_adminer Installs Adminer for DB management
setup_composer Install PHP Composer
setup_ffmpeg Install FFmpeg
setup_imagemagick Install ImageMagick
setup_gs Install Ghostscript
setup_hwaccel Configure hardware acceleration

Helper Utilities

Function Description Example
import_local_ip Sets $LOCAL_IP variable import_local_ip
ensure_dependencies Checks/installs dependencies ensure_dependencies curl jq
install_packages_with_retry APT install with retry install_packages_with_retry nginx redis

Anti-Patterns (NEVER use!)

1. Pointless Variables

# ❌ WRONG - unnecessary variables
APP_NAME="myapp"
APP_DIR="/opt/${APP_NAME}"
APP_USER="root"
APP_PORT="3000"
cd $APP_DIR

# ✅ CORRECT - use directly
cd /opt/myapp

2. Custom Download Logic

# ❌ WRONG - custom wget/curl logic
RELEASE=$(curl -s https://api.github.com/repos/YourUsername/YourRepo/releases/latest | jq -r '.tag_name')
wget https://github.com/YourUsername/YourRepo/archive/${RELEASE}.tar.gz
tar -xzf ${RELEASE}.tar.gz
mv repo-${RELEASE} /opt/myapp

# ✅ CORRECT - use our function
fetch_and_deploy_gh_release "myapp" "YourUsername/YourRepo" "tarball" "latest" "/opt/myapp"

3. Custom Version-Check Logic

# ❌ WRONG - custom version check
CURRENT=$(cat /opt/myapp/version.txt)
LATEST=$(curl -s https://api.github.com/repos/YourUsername/YourRepo/releases/latest | jq -r '.tag_name')
if [[ "$CURRENT" != "$LATEST" ]]; then
  # update...
fi

# ✅ CORRECT - use our function
if check_for_gh_release "myapp" "YourUsername/YourRepo"; then
  # update...
fi

4. Docker-based Installation

# ❌ WRONG - using Docker
docker pull myapp/myapp:latest
docker run -d --name myapp myapp/myapp:latest

# ✅ CORRECT - Bare-Metal Installation
fetch_and_deploy_gh_release "myapp" "YourUsername/YourRepo"
npm install && npm run build

5. Custom Runtime Installation

# ❌ WRONG - custom Node.js installation
curl -fsSL https://deb.nodesource.com/setup_22.x | bash -
apt install -y nodejs

# ✅ CORRECT - use our function
NODE_VERSION="22" setup_nodejs

6. Redundant echo Statements

# ❌ WRONG - custom logging messages
echo "Installing dependencies..."
apt install -y curl
echo "Done!"

# ✅ CORRECT - use msg_info/msg_ok
msg_info "Installing Dependencies"
$STD apt install -y curl
msg_ok "Installed Dependencies"

7. Missing $STD Usage

# ❌ WRONG - apt without $STD
apt install -y nginx

# ✅ CORRECT - with $STD for silent output
$STD apt install -y nginx

8. Wrapping tools.func Functions in msg Blocks

# ❌ WRONG - tools.func functions have their own msg_info/msg_ok!
msg_info "Installing Node.js"
NODE_VERSION="22" setup_nodejs
msg_ok "Installed Node.js"

msg_info "Updating Application"
CLEAN_INSTALL=1 fetch_and_deploy_gh_release "appname" "owner/repo" "tarball" "latest" "/opt/appname"
msg_ok "Updated Application"

# ✅ CORRECT - call directly without msg wrapper
NODE_VERSION="22" setup_nodejs

CLEAN_INSTALL=1 fetch_and_deploy_gh_release "appname" "owner/repo" "tarball" "latest" "/opt/appname"

Functions with built-in messages (NEVER wrap in msg blocks):

  • fetch_and_deploy_gh_release
  • check_for_gh_release
  • setup_nodejs
  • setup_postgresql / setup_postgresql_db
  • setup_mariadb / setup_mariadb_db
  • setup_mongodb
  • setup_mysql
  • setup_ruby
  • setup_go
  • setup_java
  • setup_php
  • setup_uv
  • setup_rust
  • setup_composer
  • setup_ffmpeg
  • setup_imagemagick
  • setup_gs
  • setup_adminer
  • setup_hwaccel

9. Creating Unnecessary System Users

# ❌ WRONG - LXC containers run as root, no separate user needed
useradd -m -s /usr/bin/bash appuser
chown -R appuser:appuser /opt/appname
sudo -u appuser npm install

# ✅ CORRECT - run directly as root
cd /opt/appname
$STD npm install

10. Using export in .env Files

# ❌ WRONG - export is unnecessary in .env files
cat <<EOF >/opt/appname/.env
export DATABASE_URL=postgres://...
export SECRET_KEY=abc123
export NODE_ENV=production
EOF

# ✅ CORRECT - simple KEY=VALUE format (files are sourced with set -a)
cat <<EOF >/opt/appname/.env
DATABASE_URL=postgres://...
SECRET_KEY=abc123
NODE_ENV=production
EOF

11. Using External Shell Scripts

# ❌ WRONG - external script that gets executed
cat <<'EOF' >/opt/appname/install_script.sh
#!/bin/bash
cd /opt/appname
npm install
npm run build
EOF
chmod +x /opt/appname/install_script.sh
$STD bash /opt/appname/install_script.sh
rm -f /opt/appname/install_script.sh

# ✅ CORRECT - run commands directly
cd /opt/appname
$STD npm install
$STD npm run build

12. Using sudo in LXC Containers

# ❌ WRONG - sudo is unnecessary in LXC (already root)
sudo -u postgres psql -c "CREATE DATABASE mydb;"
sudo -u appuser npm install

# ✅ CORRECT - use functions or run directly as root
PG_DB_NAME="mydb" PG_DB_USER="myuser" setup_postgresql_db

cd /opt/appname
$STD npm install

13. Unnecessary systemctl daemon-reload

# ❌ WRONG - daemon-reload is only needed when MODIFYING existing services
cat <<EOF >/etc/systemd/system/appname.service
# ... service config ...
EOF
systemctl daemon-reload  # Unnecessary for new services!
systemctl enable -q --now appname

# ✅ CORRECT - new services don't need daemon-reload
cat <<EOF >/etc/systemd/system/appname.service
# ... service config ...
EOF
systemctl enable -q --now appname

14. Creating Custom Credentials Files

# ❌ WRONG - custom credentials file is not part of the standard template
msg_info "Saving Credentials"
cat <<EOF >~/appname.creds
Database User: ${DB_USER}
Database Pass: ${DB_PASS}
EOF
msg_ok "Saved Credentials"

# ✅ CORRECT - credentials are stored in .env or shown in final message only
# If you use setup_postgresql_db / setup_mariadb_db, a standard ~/[appname].creds is created automatically
# ❌ WRONG - old cleanup pattern with msg blocks
motd_ssh
customize

msg_info "Cleaning up"
$STD apt-get -y autoremove
$STD apt-get -y autoclean
msg_ok "Cleaned"

# ✅ CORRECT - use cleanup_lxc function
motd_ssh
customize
cleanup_lxc

16. Manual Database Creation Instead of Functions

# ❌ WRONG - manual database creation
DB_USER="myuser"
DB_PASS=$(openssl rand -base64 18 | tr -dc 'a-zA-Z0-9' | cut -c1-13)
$STD sudo -u postgres psql -c "CREATE ROLE $DB_USER WITH LOGIN PASSWORD '$DB_PASS';"
$STD sudo -u postgres psql -c "CREATE DATABASE mydb WITH OWNER $DB_USER;"
$STD sudo -u postgres psql -d mydb -c "CREATE EXTENSION IF NOT EXISTS postgis;"

# ✅ CORRECT - use setup_postgresql_db function
# This sets PG_DB_USER, PG_DB_PASS, PG_DB_NAME automatically
PG_DB_NAME="mydb" PG_DB_USER="myuser" PG_DB_EXTENSIONS="postgis" setup_postgresql_db

17. Writing Files Without Heredocs

# ❌ WRONG - echo / printf / tee
echo "# Config" > /opt/app/config.yml
echo "port: 3000" >> /opt/app/config.yml

printf "# Config\nport: 3000\n" > /opt/app/config.yml
cat config.yml | tee /opt/app/config.yml
# ✅ CORRECT - always use a single heredoc
cat <<EOF >/opt/app/config.yml
# Config
port: 3000
EOF

📝 Important Rules

Variable Declarations (CT Script)

# Standard declarations (ALWAYS present)
APP="AppName"
var_tags="${var_tags:-tag1;tag2}"
var_cpu="${var_cpu:-2}"
var_ram="${var_ram:-2048}"
var_disk="${var_disk:-8}"
var_os="${var_os:-debian}"
var_version="${var_version:-13}"
var_unprivileged="${var_unprivileged:-1}"

Update-Script Pattern

function update_script() {
  header_info
  check_container_storage
  check_container_resources

  # 1. Check if installation exists
  if [[ ! -d /opt/appname ]]; then
    msg_error "No ${APP} Installation Found!"
    exit
  fi

  # 2. Check for update
  if check_for_gh_release "appname" "YourUsername/YourRepo"; then
    # 3. Stop service
    msg_info "Stopping Service"
    systemctl stop appname
    msg_ok "Stopped Service"

    # 4. Backup data (if present)
    msg_info "Backing up Data"
    cp -r /opt/appname/data /opt/appname_data_backup
    msg_ok "Backed up Data"

    # 5. Perform clean install
    CLEAN_INSTALL=1 fetch_and_deploy_gh_release "appname" "owner/repo" "tarball" "latest" "/opt/appname"

    # 6. Rebuild (if needed)
    cd /opt/appname
    $STD npm install
    $STD npm run build

    # 7. Restore data
    msg_info "Restoring Data"
    cp -r /opt/appname_data_backup/. /opt/appname/data
    rm -rf /opt/appname_data_backup
    msg_ok "Restored Data"

    # 8. Start service
    msg_info "Starting Service"
    systemctl start appname
    msg_ok "Started Service"
    msg_ok "Updated successfully!"
  fi
  exit  # IMPORTANT: Always end with exit!
}

Systemd Service Pattern

msg_info "Creating Service"
cat <<EOF >/etc/systemd/system/appname.service
[Unit]
Description=AppName Service
After=network.target

[Service]
Type=simple
User=root
WorkingDirectory=/opt/appname
Environment=NODE_ENV=production
ExecStart=/usr/bin/node /opt/appname/server.js
Restart=on-failure
RestartSec=5

[Install]
WantedBy=multi-user.target
EOF
systemctl enable -q --now appname
msg_ok "Created Service"
# ALWAYS at the end of the install script:
motd_ssh
customize
cleanup_lxc

📖 Reference: Good Example Scripts

Look at these recent well-implemented applications as reference:

Container Scripts (Latest 10)

Install Scripts (Latest)

Key things to notice:

  • Proper error handling with catch_errors
  • Use of check_for_gh_release and fetch_and_deploy_gh_release
  • Correct backup/restore patterns in update_script
  • Footer always ends with motd_ssh, customize, cleanup_lxc
  • JSON metadata files created for each app

<EFBFBD> JSON Metadata Files

Every application requires a JSON metadata file in frontend/public/json/<appname>.json.

JSON Structure

{
  "name": "AppName",
  "slug": "appname",
  "categories": [1],
  "date_created": "2026-01-16",
  "type": "ct",
  "updateable": true,
  "privileged": false,
  "interface_port": 3000,
  "documentation": "https://docs.appname.com/",
  "website": "https://appname.com/",
  "logo": "https://cdn.jsdelivr.net/gh/selfhst/icons@main/webp/appname.webp",
  "config_path": "/opt/appname/.env",
  "description": "Short description of the application and its purpose.",
  "install_methods": [
    {
      "type": "default",
      "script": "ct/appname.sh",
      "resources": {
        "cpu": 2,
        "ram": 2048,
        "hdd": 8,
        "os": "Debian",
        "version": "13"
      }
    }
  ],
  "default_credentials": {
    "username": null,
    "password": null
  },
  "notes": []
}

Required Fields

Field Type Description
name string Display name of the application
slug string Lowercase, no spaces, used for filenames
categories array Category ID(s) - see category list below
date_created string Creation date (YYYY-MM-DD)
type string ct for container, vm for virtual machine
updateable boolean Whether update_script is implemented
privileged boolean Whether container needs privileged mode
interface_port number Primary web interface port (or null)
documentation string Link to official docs
website string Link to official website
logo string URL to application logo (preferably selfhst icons)
config_path string Path to main config file (or empty string)
description string Brief description of the application
install_methods array Installation configurations
default_credentials object Default username/password (or null)
notes array Additional notes/warnings

Categories

ID Category
0 Miscellaneous
1 Proxmox & Virtualization
2 Operating Systems
3 Containers & Docker
4 Network & Firewall
5 Adblock & DNS
6 Authentication & Security
7 Backup & Recovery
8 Databases
9 Monitoring & Analytics
10 Dashboards & Frontends
11 Files & Downloads
12 Documents & Notes
13 Media & Streaming
14 *Arr Suite
15 NVR & Cameras
16 IoT & Smart Home
17 ZigBee, Z-Wave & Matter
18 MQTT & Messaging
19 Automation & Scheduling
20 AI / Coding & Dev-Tools
21 Webservers & Proxies
22 Bots & ChatOps
23 Finance & Budgeting
24 Gaming & Leisure
25 Business & ERP

Notes Format

"notes": [
    {
        "text": "Change the default password after first login!",
        "type": "warning"
    },
    {
        "text": "Requires at least 4GB RAM for optimal performance.",
        "type": "info"
    }
]

Note types: info, warning, error

Examples with Credentials

"default_credentials": {
    "username": "admin",
    "password": "admin"
}

Or no credentials:

"default_credentials": {
    "username": null,
    "password": null
}

🔍 Checklist Before PR Creation

  • No Docker installation used
  • fetch_and_deploy_gh_release used for GitHub releases
  • check_for_gh_release used for update checks
  • setup_* functions used for runtimes (nodejs, postgresql, etc.)
  • tools.func functions NOT wrapped in msg_info/msg_ok blocks
  • No redundant variables (only when used multiple times)
  • $STD before all apt/npm/build commands
  • msg_info/msg_ok/msg_error for logging (only for custom code)
  • Correct script structure followed (see templates)
  • Update function present and functional (CT scripts)
  • Data backup implemented in update function (if applicable)
  • motd_ssh, customize, cleanup_lxc at the end of install scripts
  • No custom download/version-check logic
  • All links point to community-scripts/ProxmoxVE (not ProxmoxVED!)
  • JSON metadata file created in frontend/public/json/<appname>.json
  • Category IDs are valid (0-25)
  • Default OS version is Debian 13 or newer (unless special requirement)
  • Default resources are reasonable for the application

💡 Tips for AI Assistants

  1. ALWAYS search tools.func first before implementing custom solutions
  2. Use recent scripts as reference (Thingsboard, UniFi OS, Trip, Flatnotes, etc.)
  3. Ask when uncertain instead of introducing wrong patterns
  4. Test via GitHub - push to your fork and test with curl (not local bash)
    bash -c "$(curl -fsSL https://raw.githubusercontent.com/YOUR_USERNAME/ProxmoxVE/main/ct/myapp.sh)"
    # Wait 10-30 seconds after pushing - GitHub takes time to update files
    
  5. Consistency > Creativity - follow established patterns strictly
  6. Check the templates - they show the correct structure
  7. Don't wrap tools.func functions - they handle their own msg_info/msg_ok output
  8. Minimal variables - only create variables that are truly reused multiple times
  9. Always use $STD - ensures silent/non-interactive execution
  10. Reference good examples - look at recent additions in each category

🍒 Important: Cherry-Picking Your Files for PR Submission

⚠️ CRITICAL: When you submit your PR, you must use git cherry-pick to send ONLY your 3-4 files!

Why? Because setup-fork.sh modifies 600+ files to update links. If you commit all changes, your PR will be impossible to merge.

See: README.md - Cherry-Pick Section for complete instructions on:

  • Creating a clean submission branch
  • Cherry-picking only your files (ct/myapp.sh, install/myapp-install.sh, frontend/public/json/myapp.json)
  • Verifying your PR has only 3 file changes (not 600+)

Quick reference:

# Create clean branch from upstream
git fetch upstream
git checkout -b submit/myapp upstream/main

# Cherry-pick your commit(s) or manually add your 3-4 files
# Then push to your fork and create PR

📚 Further Documentation