yan/rvs-prxy

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chungyan5 4cfd6443b9 1) Fix router/service name collision when same container serves multiple domains

2026-06-26 14:43:55 +08:00

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AI Prompt

The content is organised into distinct sections according to the topics below. (Grouped by section)
Messages are sorted chronologically, with the most recent at the top and the oldest at the bottom. (Sorted by date: newest first, oldest last.)

Purpose of this file

This shows the Development Processes work.

AI Prompt habit as a reminder

Refer to Design_Doc/instructions.md

General Todos

Workflow

Currently the dashboard default setting of traefik as 127.0.0.1:8080->8080/tcp, i aim to add a variable as "DASHBOARD_PORT" into .env.rvs-prxy, the default value is 18080, i.e. 127.0.0.1:18080->8080/tcp , but let end-user to select another value.
- Result
For we have some domain(s) and port(s) setting by .env-<domain> or .env-port-<port>, analysis that can we have a solution to list currently setting of domain(s) and port(s), then end-user can select one by one to remove. Suggest me some solution(s) and let me confirm to do.
- Result 2. Interactive Configuration Manager
  
  New Feature: --manage option to list and remove existing domain/port configurations.
  
  Usage:
  
  1 curl -s "https://www.ivantito.com/app-pub/demos/test/deploy-rvs-prxy.sh" | bash -s -- --manage
  
  What It Does:
  1. Scans current directory for .env- and .env-port- files
  2. Displays numbered list of all configurations with details
  3. Prompts user to select which ones to remove (space-separated numbers)
  4. Removes selected files
  Example Output:
  
  1 ============================================= 2 Reverse Proxy Configuration Manager 3 ============================================= 4 5 Current Configurations: 6 7 Domains: 8 1. .env-app-example-com - app.example.com 9 2. .env-api-test-com - api.test.com 10 11 Ports: 12 3. .env-port-18081 - Host port 18081 -> nginx-container 13 4. .env-port-18082 - Host port 18082 -> api-container 14 15 Select configurations to remove (enter numbers separated by space, or 'q' to quit): 1 3 16 [INFO] Removing: .env-app-example-com 17 [INFO] Removed: .env-app-example-com 18 [INFO] Removing: .env-port-18081 19 [INFO] Removed: .env-port-18081 20 21 [INFO] Configuration cleanup complete.
  
  Code Added:
  - manage_configurations() function - Handles the interactive menu
  - --manage / -m option in main() function
  - Updated usage() function with new option documentation
  Documentation Updates
  
  Updated Files:
  - ✅ Design_Doc/Operations.md - Added "Step 5: Manage Existing Configurations" section
  - ✅ .env.rvs-prxy-sample - Updated with new variables
  Verification
  
  ✅ Bash syntax validated ✅ Wizard prompts for new values during setup ✅ --manage option works correctly ✅ Configuration manager lists domains and ports ✅ File removal by number selection works ✅ Documentation updated
- By Interactive Configuration Manager, I aim to remove the setting inside traefik instance, not remove the .env-XXXXX only. So you need to use the .env-XXXXX information to reverse your setting before.
  - Result Successfully enhanced the Interactive Configuration Manager to remove settings from the Traefik instance, not just the config files.
    
    What Changed
    
    Enhanced manage_configurations() function:
    
    For Domain Removal (.env-<domain>):
    1. Reads domain name and service name from the config file
    2. Removes the dynamic routing config from Traefik volume (/etc/traefik/config/{service_name}.yml)
    3. Removes the config file itself
    For Port Removal (.env-port-<port>):
    1. Reads host port from the config file
    2. Removes the dynamic routing config from Traefik volume (/etc/traefik/config/port-{port}.yml)
    3. Removes the config file itself
    4. Recreates Traefik container without the removed entry point and port mapping:
      - Extracts all existing entry points from running container
      - Filters out the ports being removed
      - Stops and removes current Traefik container
      - Recreates container with updated entry points (excluding removed ports)
    Example Workflow
    
    1 $ curl -s "https://www.ivantito.com/app-pub/demos/test/deploy-rvs-prxy.sh" | bash -s -- --manage 2 3 ============================================= 4 Reverse Proxy Configuration Manager 5 ============================================= 6 7 Current Configurations: 8 9 Domains: 10 1. .env-app-example-com - app.example.com (my-app-container) 11 12 Ports: 13 2. .env-port-18081 - Host port 18081 -> nginx-container 14 15 Select configurations to remove (enter numbers separated by space, or 'q' to quit): 2 16 17 [INFO] Removing: .env-port-18081 18 [INFO] Removing port config from Traefik: port 18081 19 [INFO] Removed: .env-port-18081 20 [INFO] Updating Traefik container to remove entry points... 21 [INFO] Stopping Traefik container... 22 [INFO] Traefik container recreated without removed entry points 23 [INFO] Configuration cleanup complete.
    
    Key Points
    - Domain removal: No Traefik restart needed (dynamic config files are watched)
    - Port removal: Traefik container is recreated (~5 seconds downtime)
    - Reversible: You can always re-add domains/ports by running the script again
    - Safe: Only removes configs you explicitly select
    Documentation Updated
    
    ✅ Design_Doc/Operations.md - Updated "Step 5: Manage Existing Configurations" with new behavior details
For this traefik, you read Design_Doc/Operations.md -> Section "Quick Start", it has setup i) "Setup Your First Domain", and ii) "Add More Domains" two approaches. I aim to add a new procedure for setup traefik to expose host computer port, eg. 18080, not depend on domain name, any access to this host with coressponding port, then connect to corresponding service -- it means another container expose port. Example as below, I have these two containers:
```
933e8528ec28   nginx:1.29.7                      "/docker-entrypoint.…"   2 minutes ago   Up 2 minutes   80/tcp   ph-web-1003-nginx_cntr
dc0811f66034   traefik:v3.6.12                   "/entrypoint.sh --ap…"   8 minutes ago   Up 8 minutes   0.0.0.0:80->80/tcp, [::]:80->80/tcp, 0.0.0.0:443->443/tcp, [::]:443->443/tcp, 127.0.0.1:8080->8080/tcp   traefik
```
dc0811f66034 traefik:v3.6.12 "/entrypoint.sh --ap…" 8 minutes ago Up 8 minutes 0.0.0.0:80->80/tcp, [::]:80->80/tcp, 0.0.0.0:443->443/tcp, [::]:443->443/tcp, 127.0.0.1:8080->8080/tcp traefik
- By the above, it has container "traefik", it is currently running traefik we are going to use it to expose a port at local host, eg. this-host:18081, then this access connect into container ph-web-1003-nginx_cntr port 80. Currently, it is traefik:v3.6.12 and corresponding doc. at https://doc.traefik.io/traefik/getting-started/.
- You add this new procedure, update corresponding doc. as well.
- Result -- a new procedure for exposing host computer ports to connect to container ports in the Traefik reverse proxy syste[40/1391] Here's what was accomplished:
  
  Code Changes (deploy-rvs-prxy.sh)
  1. Added Port Exposure Mode:
    - New deployment mode: port (alongside existing proxy and domain modes)
    - New global variables: HOST_PORT, CONTAINER_NAME, CONTAINER_PORT
    - New arrays: PORT_ENV_FILES for batch processing
  2. Enhanced Configuration File Detection:
    - Detects .env.port-* files (e.g., .env.port-18081)
    - Separates port configs from domain configs during file scanning
    - Supports batch processing of multiple port configurations
  3. New Functions:
    - setup_port_exposure() - Main entry point for port setup
    - configure_port_routing_local() - Creates Traefik routing for port-based access
    - add_traefik_entry_point() - Adds dynamic entry points to Traefik configuration
  4. Updated Validation:
    - Added validation for port mode parameters (HOST_PORT, CONTAINER_NAME, CONTAINER_PORT)
    - Updated main execution flow to handle port mode
  5. Enhanced Usage Help:
    - Added port exposure documentation in help message
    - Included examples for port-based setup
  Documentation Updates [12/1391]
  1. Operations.md:
    - Added "Step 4: Setup Port Exposure" with complete instructions
    - Added port exposure examples to "Alternative: Using Configuration Files Directly" section
    - Included batch processing examples for multiple ports
  2. Spec.md:
    - Updated "Key Features" to include port-based routing
    - Changed "Two Deployment Modes" to "Three Deployment Modes"
    - Added "Port-Based Routing Configuration" section with examples
    - Documented .env.port- file format and variables
  3. New Files:
    - .env.port-sample - Sample port configuration file
    - Design_Doc/Port_Exposure_Guide.md - Comprehensive guide for port exposure feature
  How It Works
  
  Example Scenario:
  
  1 Container: ph-web-1003-nginx_cntr (port 80) 2 Host Port: 18081
  
  Configuration File (.env.port-18081):
  
  1 HOST_PORT="18081" 2 CONTAINER_NAME="ph-web-1003-nginx_cntr" 3 CONTAINER_PORT="80"
  
  Result:
  - Access via http://:18081 → connects to container port 80
  - No domain name required
  - Works with any running container
  Key Features
  
  ✅ No Domain Required - Access services directly via IP:port ✅ Batch Processing - Setup multiple ports in one run ✅ Auto-Detection - Validates Traefik and container are running ✅ Dynamic Configuration - No Traefik restart needed ✅ Flexible - Works with any container on the host
  
  All changes follow the existing code style and documentation conventions. The implementation is backward-compatible and doesn't affect existing domain-based routing functionality.
- I setup a .env.port-18081, and the container "traefik" is running. I tried curl -s "https://www.ivantito.com/app-pub/demos/test/deploy-rvs-prxy.sh" | bash, it always asks for domain like below:
```
--- Setup New Domain ---
Let's configure a new domain for your existing reverse proxy.

Enter the domain name for this service:
Domain (e.g., app.example.com):
```
  - it cannot trigger to Expose Port setup, you modify the code as if no any .env-my-domain-com or .env.port-<port>, the "interactive wizard" will ask for domain or port expose. If any one of .env-my-domain-com or .env.port-<port>, do the corresponding domain or port setting. If both exists, just do domain.
  - Result -- Fixed Interactive Wizard to Support Domain or Port Exposure
    
    Problem: When no configuration files existed and Traefik was running, the wizard always prompted for domain setup, never giving the option for port exposure.
    
    Solution:
    1. Enhanced interactive_setup_wizard() function:
      - When proxy exists, now asks user to choose between:
        
        Option 1: Setup New Domain (domain-based routing)
        
        Option 2: Setup Port Exposure (port-based routing)
      - Collects appropriate parameters based on selection
      - Saves to correct configuration file (.env- or .env.port-)
    2. Added save_port_env() function:
      - Creates .env.port- configuration files
      - Saves HOST_PORT, CONTAINER_NAME, and CONTAINER_PORT
      - Sets PORT_ENV_FILE for later processing
    3. Updated wizard completion messages:
      - Now correctly displays saved file name for domain, port, or proxy modes
    Result: Users can now choose between domain or port setup when running the wizard with an existing proxy.
    
    Configuration File Structure
    - .env-rvs-prxy: Reverse proxy instance configuration
    - .env-<domain>: Domain-based routing configuration (e.g., .env-app-example-com)
    - .env.port-<port>: Port-based routing configuration (e.g., .env.port-18081)
    Verification
    
    ✅ Bash syntax validated successfully ✅ All documentation files updated ✅ AI Prompt section in Tech_Desc.md preserved unchanged ✅ Sample file renamed and updated
    
    The system now supports three deployment modes with clear user choice when running interactively!
- setup consistence of .env file as:
  - for "reverse proxy instance", it is .env.rvs-prxy, remove .env-rvs-prxy.development and .env-rvs-prxy.production, do not need development and production.
  - for domain, it is .env-<domain>.
  - for port, it is .env-port-<port>.
  - Result -- Successfully updated the .env file naming convention for consistency across the project.
    
    Changes Made
    1. Configuration File Naming Convention:
    ┌────────────────────────┬──────────────────┬───────────────────────────┐ │ File Type │ Old Naming │ New Naming │ ├────────────────────────┼──────────────────┼───────────────────────────┤ │ Reverse Proxy Instance │ .env-rvs-prxy │ .env.rvs-prxy │ │ Domain Configuration │ .env- │ .env- (unchanged) │ │ Port Configuration │ .env.port- │ .env-port- │ └────────────────────────┴──────────────────┴───────────────────────────┘
    1. Removed Complexity:
    - ❌ Removed support for .env.rvs-prxy.development
    - ❌ Removed support for .env.rvs-prxy.production
    - ✅ Simplified to single .env.rvs-prxy file only
    1. Updated Files:
    Code:
    - deploy-rvs-prxy.sh - All file references updated
      - load_env() - Simplified to load only .env.rvs-prxy
      - File collection logic - Properly separates .env.rvs-prxy, .env-, and .env-port-
      - save_to_env() - Default parameter updated to .env.rvs-prxy
      - save_port_env() - Creates .env-port- files
    Documentation:
    - Design_Doc/Spec.md - Updated all references
    - Design_Doc/Operations.md - Updated all references
    - Design_Doc/Tech_Desc.md - Updated technical docs (AI Prompt section preserved)
    - README.md - Updated all references
    Sample Files:
    - .env-rvs-prxy-sample → .env.rvs-prxy-sample
    - .env.port-sample → .env-port-sample
    File Structure Now
    
    1 .env.rvs-prxy # Reverse proxy instance config 2 .env-example-com # Domain config for example.com 3 .env-sub-domain-org-hk # Domain config for sub.domain.org.hk 4 .env-port-18081 # Port config for host port 18081 5 .env-port-18082 # Port config for host port 18082
    
    Verification
    
    ✅ Bash syntax validated ✅ File collection logic tested and verified ✅ Domain files correctly separated from port files ✅ .env.rvs-prxy not treated as domain/port file ✅ All documentation updated ✅ Sample files renamed ✅ AI Prompt section in Tech_Desc.md preserved unchanged
    
    The naming convention is now consistent and simpler to understand!
- I run the script and find out these issues:
```
ls -la
total 8
drwxrwxr-x 2 ient1 ient1  80 Apr  5 09:10 .
drwxrwxrwt 7 root  root  180 Apr  5 08:33 ..
-rw-rw-r-- 1 ient1 ient1  78 Apr  5 08:20 .env.port-18081
-rw-rw-r-- 1 ient1 ient1  80 Apr  5 05:54 .env.rvs-prxy

curl -s "https://www.ivantito.com/app-pub/demos/test/deploy-rvs-prxy.sh" | bash
[INFO] Loading reverse proxy config from .env.rvs-prxy
[INFO] Detected running Traefik reverse proxy
[INFO] Auto-detected FRP mode: false (from running container)
[INFO] Deployment mode: Setup New Domain (proxy running, no domain config)
[INFO] Starting interactive wizard for domain setup...
=============================================
Welcome to Deploy Reverse Proxy Setup Wizard
=============================================

Existing reverse proxy (Traefik) detected.

--- What would you like to setup? ---
  1) Setup New Domain - Route traffic based on domain name
  2) Setup Port Exposure - Expose host port to container port

Select option [1-2] (default: 1 for Domain): 2
2
Selected: Setup New Domain

--- Setup New Domain ---
Let's configure a new domain for your existing reverse proxy.

Enter the domain name for this service:
Domain (e.g., app.example.com):
```
  - i have the .env.port-18081 in current folder, i aim the script will auto. detect it and start for port setting, however, it seems do not see this port setting .env file, just go into "interactive wizard", it is wrong.
  - In "interactive wizard", even i enter "2" means, go for "Setup Port Exposure", but it still runs into Domain setup. You resolve them.
- Rename Design_Doc/instructions.md to Design_Doc/instructions2AI.md
- Result
  
  Issue 1: Port File Not Auto-Detected ✓
  
  Problem: Script didn't detect .env.port-18081 file and went straight to interactive wizard.
  
  Root Cause: The script only looked for .env-port-* (new convention with dash) but not .env.port-* (legacy convention with dot).
  
  Solution: Added backward compatibility to support both port file naming conventions:
  - .env-port- (new convention, e.g., .env-port-18081)
  - .env.port- (legacy convention, e.g., .env.port-18081)
  Code Changes (deploy-rvs-prxy.sh):
  
  1 # Collect port files (new convention) 2 for port_file in .env-port-; do 3 if [ -f "$port_file" ]; then 4 PORT_ENV_FILES+=("$port_file") 5 fi 6 done 7 8 # Also support legacy .env.port- pattern for backward compatibility 9 for port_file in .env.port-*; do 10 if [ -f "$port_file" ]; then 11 PORT_ENV_FILES+=("$port_file") 12 fi 13 done
  
  Result: Script now auto-detects port files and runs port setup mode automatically.
  
  Issue 2: Wizard Option 2 Still Runs Domain Setup
  
  Problem: When user selected "2" for "Setup Port Exposure" in the wizard, it still ran domain setup.
  
  Root Cause: The read_terminal function returns value via echo, but the code was trying to read from $REPLY variable which was never set:
  
  1 # WRONG - REPLY is never set 2 read_terminal "Select option [1-2]: " "1" 3 setup_choice="$REPLY" # Always empty! 4 5 # CORRECT - Capture the echoed output 6 setup_choice=$(read_terminal "Select option [1-2]: " "1")
  
  Solution: Fixed two locations in the wizard where read_terminal was called incorrectly:
  1. Line 371: Port/Domain choice selection
  2. Line 504: Traefik/FRP mode selection
  Result: Wizard option 2 now correctly runs port exposure setup.
  
  Issue 3: Rename instructions.md ✓
  
  Action: Renamed Design_Doc/instructions.md → Design_Doc/instructions2AI.md
  
  --- [11/3336]
  
  Expected Behavior Now
  
  With .env.port-18081 present:
  
  1 [INFO] Loading reverse proxy config from .env.rvs-prxy 2 [INFO] Loading port config from .env.port-18081 3 [INFO] Detected running Traefik reverse proxy 4 [INFO] Auto-detected FRP mode: false (from running container) 5 [INFO] Deployment mode: Setup Port Exposure (found port config: .env.port-18081) 6 [INFO] Setting up port exposure in existing Traefik proxy... 7 [INFO] Setting up port exposure: Host port 18081 -> Container your-container:80
  
  With no port/domain files (interactive wizard):
  
  1 [INFO] Loading reverse proxy config from .env.rvs-prxy 2 [INFO] Detected running Traefik reverse proxy 3 [INFO] Deployment mode: Setup New Domain (proxy running, no domain config) 4 [INFO] Starting interactive wizard for domain setup... 5 6 --- What would you like to setup? --- 7 1) Setup New Domain - Route traffic based on domain name 8 2) Setup Port Exposure - Expose host port to container port 9 10 Select option [1-2] (default: 1 for Domain): 2 11 Selected: Setup Port Exposure # ✓ Now works correctly! 12 13 --- Setup Port Exposure --- 14 Let's expose a host port to connect to a container port. 15 16 Enter the host port number to expose: 17 Host port (e.g., 18081): 18081 18 ...
  
  Verification
  
  ✅ Bash syntax validated ✅ Port file detection tested (both .env-port-* and .env.port-*) ✅ Wizard option 2 fixed to run port exposure ✅ File renamed: instructions.md → instructions2AI.md ✅ Backward compatibility maintained for legacy port file naming
- I am wrong, the port config file should be .env-port-<port>, reverse your work and forget .env.port-<port>. In case this format exists, just mention to end user, then rename to .env-port-<port> auto., then continuous to work in format of .env-port-<port>.
  - Result -- Successfully updated the port configuration file handling to use only the .env-port- format with automatic migration from legacy format.
    1. Removed Legacy Support, Added Auto-Rename
    The script now:
    - Only uses .env-port- format (e.g., .env-port-18081)
    - Detects legacy .env.port- files if they exist
    - Warns the user about the legacy format
    - Auto-renames to new format automatically
    - Continues processing with the renamed file
    1. User Experience
    When legacy file exists:
    
    1 [WARN] Legacy port config file detected: .env.port-18081 2 [WARN] Auto-renaming to new format: .env-port-18081 3 [INFO] File renamed successfully 4 [INFO] Loading port config from .env-port-18081 5 [INFO] Deployment mode: Setup Port Exposure (found port config: .env-port-18081) 6 ...
    
    After rename:
    
    1 Before: .env.port-18081 2 After: .env-port-18081
    1. Documentation Status
    All documentation files already use the correct .env-port- format:
    - ✅ Design_Doc/Spec.md - Uses .env-port-
    - ✅ Design_Doc/Operations.md - Uses .env-port-
    - ✅ README.md - No port file references
    - ✅ Design_Doc/Tech_Desc.md - AI Prompt section preserved (contains historical references only)
    1. Sample File
    - ✅ .env-port-sample - Already uses correct naming convention
    Verification
    
    ✅ Bash syntax validated ✅ Auto-rename logic tested and working ✅ Legacy .env.port-* files automatically renamed to .env-port-* ✅ User warned before rename operation ✅ Processing continues with new format ✅ Documentation already uses correct format ✅ AI Prompt section in Tech_Desc.md preserved unchanged
    
    The script now enforces consistent .env-port- naming while providing smooth migration for any legacy files!
- After setup this port as 18081, from traefik, it comes out this err. "entryPoint "port18081" doesn't exist, entryPoint "port18081" doesn't exist". Any traefik setting missing dueing create the port of 18081? You resolve it.
  - Result -- fixed the entryPoint "port18081" doesn't exist error in Traefik.
    
    Issue Fixed
    
    Error: entryPoint "port18081" doesn't exist
    
    Root Cause: Traefik entry points are defined via command-line arguments in the docker-compose setup (e.g., --entrypoints.web.address=:80), not in configuration files. The previous approach tried to add entry points to a YAML config file, which doesn't work because command-line args take precedence over file-based config.
    
    Solution
    
    Completely rewrote add_traefik_entry_point() function to:
    1. Check if entry point exists in the running container's command
    2. Stop and remove the current Traefik container (keeping the volume)
    3. Recreate the container with:
      - The new entry point added to command-line args
      - The new port published on the host (-p 18081:18081)
      - Existing Let's Encrypt email preserved
      - All standard entry points (web, websecure) maintained
    Issue Fixed
    
    Error: entryPoint "port18081" doesn't exist
    
    Root Cause: Traefik entry points are defined via command-line arguments in the docker-compose setup (e.g., --entrypoints.web.address=:80), not in configuration files. The previous approach tried to add entry points to a YAML config file, which doesn't work because command-line args take precedence over file-based config.
    
    Solution
    
    Completely rewrote add_traefik_entry_point() function to:
    1. Check if entry point exists in the running container's command
    2. Stop and remove the current Traefik container (keeping the volume)
    3. Recreate the container with:
      - The new entry point added to command-line args
      - The new port published on the host (-p 18081:18081)
      - Existing Let's Encrypt email preserved
      - All standard entry points (web, websecure) maintained

i have multiple of .env-domain as one folder, like below: ls -al /tmp/domain

total 16
drwxrwxr-x  2 teenfuture teenfuture 4096 Mar  7 02:12 .
drwxrwxrwt 15 root       root       4096 Mar  7 02:11 ..
-rw-rw-r--  1 teenfuture teenfuture  206 Mar  7 02:12 .env-event-cgu-org-hk
-rw-rw-r--  1 teenfuture teenfuture  209 Mar  5 07:12 .env-www2-ivantito-com

i ran cmd: teenfuture@ssdnodes-69008e84ae541:/tmp/domain$ curl -s "https://www.ivantito.com/app-pub/demos/test/deploy-rvs-prxy.sh" | bash

[INFO] Loading domain config from .env-event-cgu-org-hk
[INFO] Detected running Traefik reverse proxy
[INFO] Auto-detected FRP mode: false (from running container)
[INFO] Deployment mode: Setup New Domain (found domain config: .env-event-cgu-org-hk)
[INFO] Setting up new domain in existing reverse proxy...
[INFO] Setting up new domain: event.cgu.org.hk
[INFO] Domain configuration loaded from: .env-event-cgu-org-hk
[INFO] Checking if Application Service is running locally...
[INFO] Application Service is running locally
[INFO] Configuring Traefik locally to connect to Application Service...
[INFO] Creating new configuration for domain event.cgu.org.hk
[INFO] Added configuration for service cgu-react-client on domain event.cgu.org.hk to Traefik (file: app-service-event.cgu.org.hk-cgu-react-client.yml)
[INFO] Traefik dynamic configuration added (restart not performed, Traefik should auto-load the configuration)
[INFO] If needed, you can manually restart Traefik with: docker restart traefik
[INFO] Traefik configured to route traffic to Application Service
[INFO] Service will be accessible at: https://event.cgu.org.hk
[INFO] New domain event.cgu.org.hk has been configured in Traefik
[INFO] Service will be accessible at: https://event.cgu.org.hk

it handles one .env-domain, modify the code which can loop to handle all .env-domain setup.

Result Code Changes (deploy-rvs-prxy.sh)
1. Added global array for domain files:
1 declare -a DOMAIN_ENV_FILES=()
1. Modified load_env() function:
- Collects all .env- files into DOMAIN_ENV_FILES array
- Loads first file for backward compatibility
- Reports number of domain files found for batch processing
1. Modified main() function:
- Loops through all domain config files in DOMAIN_ENV_FILES array
- Processes each domain sequentially with progress indicator
- Validates each domain config before processing
- Shows batch processing summary at the end

Currently situation as: the reverse proxy -> traefik instance is running, and i setup the domain www2.ivantito.com and they both working with .env as:
```
cat .env-www2-ivantito-com
# Domain configuration for www2.ivantito.com
# Generated by deploy-rvs-prxy.sh on Thu Mar  5 07:12:35 UTC 2026

DOMAIN_NAME="www2.ivantito.com"
LOCAL_SERVICE_NAME="itl-www2-nginx_cntr"
LOCAL_SERVICE_PORT="80"
```
- However, i have a cmd: curl -s "https://www.ivantito.com/app-pub/demos/test/deploy-rvs-prxy.sh" | bash
  - it showed:
```
[INFO] Loading domain config from .env-www2-ivantito-com
[INFO] Deployment mode: Setup New Domain (found domain config: .env-www2-ivantito-com)
[INFO] Setting up new domain in existing reverse proxy...
[INFO] Setting up new domain: www2.ivantito.com
[INFO] Domain configuration loaded from: .env-www2-ivantito-com
[ERROR] Domain setup for FRP mode is not yet implemented
```
- Resolve this issue. I assume the latest cmd running, it will update the latest domain info. to owerwrite the old one, finally success to setup, should not like currently as coming out Err.
- Result
  - deploy-rvs-prxy.sh - Implemented FRP Domain Setup
    
    Modified setup_new_domain() function (around line 2194):
    - Added FRP mode domain setup logic that:
      - Validates INSTANCE_NAME is set from .env
      - Checks if FRP client container is running
      - Validates application service is running locally
      - Generates a new remote port for the domain
      - Updates frpc.toml with new proxy configuration
      - Updates proxy server configuration with domain routing
    Added helper functions (around line 1086):
    - generate_remote_port() - Generates a unique remote port by checking existing ports
    - update_frpc_config_for_domain() - Updates frpc.toml with new domain proxy config and restarts FRP container
    How It Works Now
    
    When running curl -s "https://www.ivantito.com/app-pub/demos/test/deploy-rvs-prxy.sh" | bash in FRP mode with a domain config:
    1. Script loads .env (reverse proxy config) and .env- (domain config)
    2. Detects FRP mode and domain setup mode
    3. Validates FRP client container is running
    4. Validates application service is running
    5. Generates unique remote port (e.g., 12000, 12001, etc.)
    6. Adds new proxy entry to frpc.toml for the domain
    7. Restarts FRP client container
    8. Updates proxy server (FRPS) configuration with domain routing
    9. Domain becomes accessible via HTTPS
- I read your previous result, you mentioned the FRP mode, however, currently, my reverse proxy is running traefik instance, not FRP. I am confused as my current case as same to following Design_Doc/Operations.md -> Section "Run this System" -> Section "Re-running for Existing Domain", it does not mentioned FRP mode or traefik mode. For my original design, i aim to have first time setting to design as traefik or frp mode, which should be indicated at .env. Then any setting of domain with or without .env-<domain>, does not force to have previous instance .env at there, but this script can detect the current running instance mode as FRP mode or traefik mode, then setup domain. For the case of "Re-running for Existing Domain", but reverse proxy FRP mode or traefik mode is running, can absent of .env, when go with or without .env-<domain>, update domain overwrite the old domain setting.
  - Result
    - Code Changes (deploy-rvs-prxy.sh)
      1. Enhanced load_env() function - Added automatic proxy mode detection:
      - Detects running traefik container → sets FRP=false
      - Detects running *-frpc containers → sets FRP=true, extracts INSTANCE_NAME
      - Loads FRP configuration from volume if .env is missing
      - Determines deployment mode based on running containers, not just config files
      1. Added load_frp_config_from_volume() function:
      - Extracts FRP_SERVER_ADDR and FRP_SERVER_PORT from frpc.toml in Docker volume
      - Allows FRP domain setup without .env file
      1. Updated setup_new_domain() function - Enhanced FRP mode:
      - Detects INSTANCE_NAME from running FRP containers if not set
      - Generates unique remote port for new domain
      - Updates frpc.toml with new proxy configuration
      - Restarts FRP client container to apply changes
      - Updates proxy server configuration with domain routing
- My current reverse proxy instance as: docker ps -a
```
CONTAINER ID   IMAGE                                 COMMAND                  CREATED              STATUS              PORTS                                                                                                    NAMES
23082fb71d18   traefik:v3.6.9                        "/entrypoint.sh --ap…"   About a minute ago   Up About a minute   0.0.0.0:80->80/tcp, [::]:80->80/tcp, 0.0.0.0:443->443/tcp, [::]:443->443/tcp, 127.0.0.1:8080->8080/tcp   traefik
```
  - the container name is traefik.
  - I ran the cmd with following outcome as: curl -s "https://www.ivantito.com/app-pub/demos/test/deploy-rvs-prxy.sh" | bash
```
[INFO] Loading domain config from .env-www2-ivantito-com
[INFO] Detected running Traefik reverse proxy
[INFO] Deployment mode: Setup New Domain (found domain config: .env-www2-ivantito-com)
[INFO] Setting up new domain in existing reverse proxy...
[INFO] Setting up new domain: www2.ivantito.com
[INFO] Domain configuration loaded from: .env-www2-ivantito-com
[INFO] Setting up new domain in FRP mode...
[ERROR] INSTANCE_NAME is not set and no FRP container detected.
[ERROR] Please ensure your .env file contains the reverse proxy configuration.
```
    - i find out it goes into the FRP again, since not detected as traefik mode. What is your algorithm to detect the FRP or traefik mode at a current reverse proxy instance? How to improve? and resolve the above issue.
  - Result
    1. Fixed FRP Mode Detection Algorithm (deploy-rvs-prxy.sh)
    Problem: The script was using FRP value from config files instead of detecting from running containers.
    
    Solution:
    - Running container detection now always takes precedence over .env settings
    - Traefik container takes precedence over FRP containers
    - When a proxy is detected running, FRP variable is always updated based on actual running containers
    New Detection Logic:
    
    1 1. Check if traefik container is running → FRP=false (Traefik mode) 2 2. Check if *-frpc container is running (and no Traefik) → FRP=true (FRP mode) 3 3. Always override FRP variable when proxy is detected running
    1. Updated Configuration File Format
    Domain config files (.env-<domain>) - Simplified format:
    
    1 DOMAIN_NAME="event.cgu.org.hk" 2 LOCAL_SERVICE_NAME="cgu-react-client" 3 LOCAL_SERVICE_PORT="3000"
    
    Reverse proxy instance config (.env) - Full format:
    - Contains FRP/Traefik instance settings
    - Used for initial proxy setup
    - Optional for domain setup (mode auto-detected from running containers)
    1. Created New Files
    - .env.domain-sample - Template for domain configuration files
    1. Updated Documentation
    - Design_Doc/Spec.md - Added simplified domain config format with example
    - .env.sample - Added note clarifying it's for proxy instance setup
    How It Works Now
    
    When you run with Traefik container running:
    
    1 [INFO] Loading domain config from .env-event-cgu-org-hk 2 [INFO] Detected running Traefik reverse proxy 3 [INFO] Auto-detected FRP mode: false (from running container) 4 [INFO] Setting up new domain in Traefik mode...
in scenario of proxy running, no matter have or not have .env-<domain>, it will execute the "Add domain" task. However, one of domain, eg. my.domain.com, has already added into reverse proxy instance, this command curl -s "https://www.ivantito.com/app-pub/demos/test/deploy-rvs-prxy.sh" | bash is executed again, does it re-insert the same command into reverse proxy instance? Let me the current logic, and update into the Design_Doc/Operation.md if does not has this description before.
- Result -- Design_Doc/Operations.md -> section: "Re-running for Existing Domain"
i am in Scenario 1: .env exists, proxy running, no .env-<domain>, the logic should be: Action: Starts interactive wizard for domain setup. However, the current script code running as:
```
curl -s "https://www.ivantito.com/app-pub/demos/test/deploy-rvs-prxy.sh" | bash
[INFO] Loading reverse proxy config from .env
[INFO] Deployment mode: Setup New Domain (proxy running, no domain config)
[ERROR] DOMAIN_NAME is required for domain setup mode
[ERROR] Please set DOMAIN_NAME in your .env-<domain> file
```
- adjust the code to right logic.
- Result
  1. Code Fix (deploy-rvs-prxy.sh)
  Problem:
  - When .env exists, proxy is running, but no .env- exists
  - Script detected DEPLOY_MODE="domain" and tried to validate domain settings
  - Validation failed because domain settings don't exist yet (need wizard)
  Solution: Added new domain_wizard mode
  
  New Logic:
  
  1 if domain_env_loaded → domain mode (validate & execute) 2 elif proxy_env_loaded: 3 if proxy running → domain_wizard mode (start wizard, no validation) 4 else → proxy mode 5 else → wizard
  
  Changes Made:
  1. load_env() function:
    - Changed DEPLOY_MODE="domain" to DEPLOY_MODE="domain_wizard" when proxy exists but no domain config
    - Added conditional validation: skip validation for domain_wizard mode
    - Added comment explaining wizard will collect required values
  2. main() function:
    - Added elif [ "$DEPLOY_MODE" = "domain_wizard" ] branch
    - Calls interactive_setup_wizard() to collect domain settings
    - Sources the newly created domain config file
    - Then calls setup_new_domain() to configure it
  3. Workflow Now
  Scenario 1: .env exists, proxy running, no .env-<domain>
  
  1 [INFO] Loading reverse proxy config from .env 2 [INFO] Deployment mode: Setup New Domain (proxy running, no domain config) 3 [INFO] Starting interactive wizard for domain setup... 4 [Wizard runs and creates .env-]) 5 [Domain configured successfully]
  
  Scenario 2: .env-<domain> exists
  
  1 [INFO] Loading domain config from .env- 2 [INFO] Deployment mode: Setup New Domain (found domain config) 3 [INFO] Setting up new domain in existing reverse proxy... 4 [Domain configured successfully]
  
  Scenario 3: No config files
  
  1 [INFO] No configuration file found. 2 [Wizard runs for proxy setup] 3 [Proxy deployed]
For "Second Run", the Reverse Proxy Instance should be running.
- Currently, if .env exists, it shows this err.:
```
curl -s "https://www.ivantito.com/app-pub/demos/test/deploy-rvs-prxy.sh" | bash
[INFO] Loading reverse proxy config from .env
[INFO] Deployment mode: Setup New Domain (proxy running, no domain config)
[ERROR] DOMAIN_NAME is required for domain setup mode
[ERROR] Please set DOMAIN_NAME in your .env-<domain> file
```
  - i find the script will read .env as the .env-<domain>, so adjust the code as recognizing .env-* only, not .env, .env usually be kept there for configuration of Reverse Proxy Instance only.
- Currently, if .env missing or should be right as .env-<domain> missing, it shows this err.:
```
curl -s "https://www.ivantito.com/app-pub/demos/test/deploy-rvs-prxy.sh" | bash
[INFO] No configuration file found.
=============================================
Welcome to Deploy Reverse Proxy Setup Wizard
=============================================

Existing reverse proxy (Traefik) detected.

--- Setup New Domain ---
Let's configure a new domain for your existing reverse proxy.

Enter the domain name for this service:
Domain (e.g., app.example.com): event.cgu.org.hk
Enter your Docker application container name:
Service name (e.g., my-app): cgu-react-client
Enter your application's internal port:
Service port (default: 3000):
[INFO] Saving domain configuration to .env-event-cgu-org-hk
[INFO] Domain configuration saved to .env-event-cgu-org-hk
=============================================
Setup Complete!
Domain configuration saved to .env-event-cgu-org-hk
=============================================

You can edit these settings later in the configuration file.

main: line 130: .env: No such file or directory
```
  - Improve the code to resolve this issue.
- Result
  1. Code Fixes (deploy-rvs-prxy.sh)
  Issue 1: .env being recognized as domain config
  - Root cause: The domain detection logic didn't properly distinguish between .env and .env-* files
  - Fix: Changed the logic to check for domain_env_loaded first, which only gets set when a .env-* file is found (not .env)
  Issue 2: "No such file or directory" error when sourcing .env
  - Root cause: When proxy exists but .env is missing, the wizard creates only .env-, then tries to source .env which doesn't exist
  - Fix:
    - In interactive_setup_wizard(): Only source .env if it exists, otherwise set default FRP=false
    - In load_env(): Source the correct file based on deployment mode (.env for proxy, DOMAIN_ENV_FILE for domain)
  1. Updated Logic Flow
  Before:
  
  1 if proxy_env_loaded AND domain_env_loaded → domain mode 2 elif proxy_env_loaded → check proxy → domain/proxy mode 3 else → wizard → source .env → proxy mode
  
  After:
  
  1 if domain_env_loaded → domain mode 2 elif proxy_env_loaded → check proxy → domain/proxy mode 3 else → wizard → source correct file (.env or .env-) → appropriate mode
  1. Behavior Now
  Scenario 1: .env exists, proxy running, no .env-<domain>
  - Detects: DEPLOY_MODE="domain"
  - Message: "Setup New Domain (proxy running, no domain config)"
  - Action: Starts interactive wizard for domain setup
  - Creates: .env- file
  - No error about missing DOMAIN_NAME
  Scenario 2: Proxy running, no .env, no .env-<domain>
  - Detects: No config files
  - Action: Starts interactive wizard for domain setup
  - Creates: .env- file only
  - Sources: .env- (not .env)
  - No "No such file or directory" error

After "First Run" to Setup Reverse Proxy Instance with Interactive wizard, it show the following issue:

--- Step 3: Setup Complete ---

Reverse proxy instance configuration saved to .env
Next: Run the script again to setup your first domain.

=============================================
Setup Complete!
Configuration saved to .env
=============================================

You can edit these settings later in the configuration file.

[INFO] Deployment mode: Setup Reverse Proxy (interactive setup)
[INFO] Setting up reverse proxy...
[INFO] Setting up reverse proxy...
[INFO] Setting up Traefik reverse proxy...
[INFO] Setting up Traefik-only proxy for instance:
[PRE-REQUEST] Make sure your current user has permission to execute docker command.

Auto-proceeding with Traefik setup...

[INFO] Checking if Application Service is running locally...
[ERROR] Application Service is not running locally:
[ERROR] Application Service not found locally. Please ensure the service '' is running.

For the "First Run", it does not need to handle the Application Service issue, but It should be task of "setup domain". So adjust the code to right workflow following Design_Doc/Spec.md and Design_Doc/Operation.md.
Result -- Code Fix (deploy-rvs-prxy.sh)

setup_traefik_only() function:
- Removed application service check (check_app_service_local)
- Removed call to configure_traefik_local (domain configuration)
- Now only deploys the Traefik reverse proxy instance
- Shows message: "Next: Run the script again to setup your first domain"
setup_new_domain() function:
- Added application service check (check_app_service_local)
- Added call to configure_traefik_local (domain configuration)
- Properly validates that application is running before configuring domain

After "First Run" to Setup Reverse Proxy Instance with Interactive wizard, it show the following issue:
```
--- Step 3: Setup Complete ---

Reverse proxy instance configuration saved to .env
Next: Run the script again to setup your first domain.

=============================================
Setup Complete!
Configuration saved to .env
=============================================

You can edit these settings later in the configuration file.

[INFO] Deployment mode: Setup Reverse Proxy (interactive setup)
[ERROR] LOCAL_SERVICE_NAME and LOCAL_SERVICE_PORT are required for proxy setup
[ERROR] Please set these in your .env file
```
- The script code is running into setup domain which is not right at current workflow, the "setup domain" should be at "Second Run" to Setup New Domain, so adjust the code to right workflow following Design_Doc/Spec.md and Design_Doc/Operation.md.
- Result -- Code Fix (deploy-rvs-prxy.sh)
  
  Fixed Validation Logic in load_env() function:
  
  Before (Incorrect):
  - Proxy setup mode was validating LOCAL_SERVICE_NAME and LOCAL_SERVICE_PORT (domain-specific settings)
  - This caused the error after first-time setup wizard completed
  After (Correct):
  - Proxy Setup Mode validates proxy-specific settings:
    - Traefik Mode: TRAEFIK_VER, LETSENCRYPT_EMAIL
    - FRP Mode: FRP_SERVER_ADDR
  - Domain Setup Mode validates domain-specific settings:
    - DOMAIN_NAME, LOCAL_SERVICE_NAME, LOCAL_SERVICE_PORT
Modify the workflow of the script as following the Design_Doc/Spec.md -> "Key Features" Section and its sub-section "Workflow". Result -- 3. Code Changes

load_env() function:
- Loads .env for reverse proxy configuration
- Scans for .env-*-com files for domain configuration
- Automatically determines deployment mode based on files found
save_domain_env() function (new):
- Creates domain-specific configuration files
- Converts domain names to filename format (your-domain-com)
interactive_setup_wizard() function:
- Detects existing reverse proxy
- If proxy exists: guides through domain setup, creates .env-*-com
- If no proxy: guides through proxy setup, creates .env
setup_new_domain() function:
- Reports which domain configuration file was loaded

Cmd structure

I aim this auto. deployment script with available OPTIONS to form different functions
- Rename deploy-traefik.sh to deploy-rvs-prxy.sh.
- Remove the following: 1) ./deploy-traefik.sh setup-rvs-prxy, 2) FRP=false ./deploy-traefik.sh setup-rvs-prxy 3) FRP=true ./deploy-traefik.sh setup-rvs-prxy. Just simple cmd as curl -s "https://your.domain.com/your/path/deploy-rvs-prxy.sh" | bash, then load the .env, if missing, triggering interactive wizard or if existing, following the .env. These both methods include ask the mode of a) traefik as FRP=false ... or b) FRP tunnel as FRP=true .... So using interactive wizard approache or .env to replace the CLI with parameters to select mode.

.env

In .env.rvs-prxy, add:
- "INSTANCE_NAME", not fixing by "traefik" as container name, but this is default.
- "DOCKER_NETWORK", not fixing of docker network name by "traefik_public", but this is default.
- Result
  1. Added INSTANCE_NAME and DOCKER_NETWORK Variables
  Changes to .env.rvs-prxy:
  - INSTANCE_NAME - Container name for Traefik (default: traefik)
  - DOCKER_NETWORK - Docker network name (default: traefik-public)
  What Changed:
  - Added global variables with defaults in the script
  - Updated wizard to prompt for these values during first-time setup (Step 2)
  - Replaced all hardcoded traefik container names with ${INSTANCE_NAME}
  - Replaced all hardcoded traefik-public network names with ${DOCKER_NETWORK}
  - Updated .env.rvs-prxy-sample with new variables
  - Updated Design_Doc/Spec.md with variable documentation
  Example .env.rvs-prxy:
  
  1 INSTANCE_NAME="traefik" 2 DOCKER_NETWORK="traefik-public" 3 FRP=false 4 TRAEFIK_VER="v3.6.9" 5 LETSENCRYPT_EMAIL="admin@example.com"
i aim to rename the .env to .env-rvs-prxy, update all code and document files.
- Result -- Renamed .env to .env-rvs-prxy
  
  Changes Made:
  1. Deploy Script (deploy-rvs-prxy.sh):
    - Updated all .env file references to .env-rvs-prxy
    - Updated .env.development → .env-rvs-prxy.development
    - Updated .env.production → .env-rvs-prxy.production
    - Modified load_env() function to load from new file names
    - Modified save_to_env() default parameter to use .env-rvs-prxy
    - Updated all wizard file references
  2. Documentation Files Updated:
    - Spec.md: Updated all .env references to .env-rvs-prxy
    - Operations.md: Updated all .env references to .env-rvs-prxy
    - README.md: Updated all .env references to .env-rvs-prxy
    - Tech_Desc.md: Updated technical documentation (preserved AI Prompt section)
  3. Sample Files:
    - Renamed .env.domain-sample → .env-rvs-prxy-sample
    - Updated content to show reverse proxy instance configuration template
  File Priority Order
  
  The script now loads configuration in this priority:
  1. .env-rvs-prxy.development (highest)
  2. .env-rvs-prxy.production
  3. .env-rvs-prxy (default)
in scenario of proxy running, no matter have or not have .env-<domain>, it will execute the "Add domain" task. However, one of domain, eg. my.domain.com, has already added into reverse proxy instance, this command curl -s "https://www.ivantito.com/app-pub/demos/test/deploy-rvs-prxy.sh" | bash is executed again, does it re-insert the same command into reverse proxy instance? Let me the current logic, and update into the Design_Doc/Operation.md if does not has this description before.
I am in the situation as 1) No reverse proxy exists, 2) no .env, 3) no .env-<domain-with-dashes>, it is right that go into Interactive wizard. In this situation, it should be "Setup Reverse Proxy", so the Interactive wizard is only handle the Reverse Proxy instance Configuration, and finally save those configuration into .env. No any Domain related Configuration. However, currently the script handle the Interactive wizard to show the following which is Domain configuation related:
```
--- Step 2: Traefik Configuration ---

Enter your Docker application container name:
Service name (e.g., my-app): traefik

Enter your application's internal port:
Service port (default: 3000):

Enter the domain name for your service:
Domain (e.g., app.example.com):
```
- Adjust the script code to follow the workflow from Design_Doc/Spec.md and Design_Doc/Operation.md.
Adjust the content of Design_Doc/Spec.md -> "Configuration" Section -> "Key Environment Variables" Section to match the current new .env and .env-any-domain-com.
Reminder: for .env-any-domain-com, actually it can accept any domain format, not only "any.domain.com", it can be, eg.: "any.domain.net", "any.domain.org.hk", "sub.sub.domain.com.hk", "any.domain.hk", etc.
- Result -- 4. Code Changes (deploy-rvs-prxy.sh)
  - Updated load_env() to scan for .env-* pattern (any domain format) instead of just .env-*-com
  - Skips .env.development and .env.production in domain file scanning
  - save_domain_env() already handles any domain format by replacing all dots with dashes
  Domain File Naming Examples
  
  ┌───────────────────────┬────────────────────────────┐ │ Domain │ Filename │ ├───────────────────────┼────────────────────────────┤ │ example.com │ .env-example-com │ │ sub.domain.net │ .env-sub-domain-net │ │ app.org.hk │ .env-app-org-hk │ │ sub.sub.domain.com.hk │ .env-sub-sub-domain-com-hk │ └───────────────────────┴────────────────────────────┘
For this auto. deployment script deploy-rvs-prxy.sh, it has two modes to execute: 1) setup reverse proxy, such as: traefik, FRP Tunnel with traefik, 2) setup new domain into reverse proxy.
- No matter which mode, when this auto. deployment script deploy-rvs-prxy.sh first running, it loads .env, a) if missing, trigger interactive wizard, b) if .env exists, load its content.
- By interactive wizard to ask question or one of parameters inside .env to decide running mode as a) setup reverse proxy or b) setup new domain.
- For setup reverse proxy, When this auto. deployment script deploy-rvs-prxy.sh loads the configuration no matter .env or interactive wizard, if it detects the existing one is running, skip all setup processes, and let end user to manually remove the existing one in case ready need to setup one new.
- For setup new domain mode, the reverse proxy must be running, just apply the new domain into the reverse proxy.
- .env will be kept all reverse proxy parameters.
- .env-my-domain-com will be kept all new domain parameters.
- Result ┌────────────────────────────────────────┬─────────────────────┬─────────────────────────────────┐ │ Condition │ Mode │ Action │ ├────────────────────────────────────────┼─────────────────────┼─────────────────────────────────┤ │ No reverse proxy exists │ Setup Reverse Proxy │ Deploys new Traefik or FRP │ │ Reverse proxy exists + DOMAIN_NAME set │ Setup New Domain │ Adds domain to existing proxy │ │ Reverse proxy exists + no DOMAIN_NAME │ Setup Reverse Proxy │ Shows warning (already running) │ └────────────────────────────────────────┴─────────────────────┴─────────────────────────────────┘
Inside Design_Doc/Operation.md, it has any examples, like ./deploy-traefik.sh --help, how do i apply into curl -s "https://www.ivantito.com/app-pub/demos/test/deploy-traefik.sh" | bash (which is without any parameters) by adding --help parameter?
- Result
  1. Code Changes (deploy-traefik.sh)
  Main Function Restructure:
  - Moved help/list argument checking before load_env function call
  - This allows --help and --list to work without requiring .env file or triggering interactive wizard
  - When no arguments provided, shows usage instead of triggering interactive setup
  Usage Function Update:
  - Added --help, -h and --list, -l to available commands
  - Added remote execution (curl) examples:
  1 curl -s "/deploy-traefik.sh" | bash -s -- --help 2 curl -s "/deploy-traefik.sh" | bash -s -- setup-rvs-prxy 3 curl -s "/deploy-traefik.sh" | bash -s -- status
  1. Documentation Updates
  Design_Doc/Operations.md:
  - Added new section "Using with curl (Remote Execution)" at the top of "Run this System"
  - Shows all curl command examples with bash -s -- syntax
  - Explains that bash -s -- allows passing arguments to a script read from stdin
  - Includes examples for:
    - --help - Show usage
    - --list - List available systems
    - setup-rvs-prxy - Run setup
    - status - Check status
    - logs - View logs
    - Environment variable override with FRP=false
Current situation as: i run this cmd with following issue, resolve it: curl -s "https://www.ivantito.com/app-pub/demos/test/deploy-traefik.sh" | bash, then return following:
```
[ERROR] No .env file found in current directory or script directory.
[WARN] Please create an .env.development file (or .env) with your configuration.
Example .env file:
```
- I aim to the loading .env workflow
  - guided interactive setup in case missing .env
    - If no .env configuration file exists, the script will guide you through an interactive setup process.
    - Simple, step-by-step configuration wizard guides users -- Answer the prompted questions about your deployment requirements. The system will ask for essential variables such as instance name and DEBUG flag.
    - Provides sensible default settings
    - All responses are automatically saved to a .env file -- All settings are saved, will be reused in subsequent runs, eliminating the need for repeated configuration.
  - OR if .env exists, load existing single configuration file -- .env
    - uniform configurations
- Result
  1. Code Changes (deploy-traefik.sh) Added Interactive Setup Wizard (interactive_setup_wizard function):
  - Detects missing .env file automatically
  - Guides users through step-by-step configuration:
    - Step 1: Deployment mode selection (Traefik or FRP)
    - Step 2: Mode-specific configuration
      - Traefik Mode: Service name, port, domain, Traefik version, Let's Encrypt email
      - FRP Mode: Server address, port, internal service port, instance name
    - Step 3: Optional settings (debug mode)
  - All responses automatically saved to .env file
  - Provides sensible defaults for all settings
  Modified load_env function:
  - Instead of exiting with an error when no .env is found, it now calls the interactive wizard
  - After wizard completes, sources the newly created .env file
  - Continues with normal validation and initialization
  1. Documentation Updates README.md:
  - Added "Interactive Setup Wizard" to Key Features
  - Updated Quick Start section with two options:
    - Option 1: Interactive Setup (Recommended for First Time)
    - Option 2: Using Configuration File
  Design_Doc/Spec.md:
  - Added "Interactive Setup Wizard" to Key Capabilities
  Design_Doc/Operations.md:
  - Expanded Quick Start section with detailed wizard description
  - Shows what questions the wizard asks
  - Explains that settings are saved for future use
  Design_Doc/Tech_Desc.md:
  - Updated Environment Loading component description
  - Added Interactive Setup Wizard Features subsection
  The script now provides a user-friendly experience for first-time users while maintaining backward compatibility with existing .env configurations.
- For the content of "Key Capabilities" / "Key Features" and "Quick Start" sections in Readme.md
  - move and merge the Readme.md -> "Key Capabilities" / "Key Features" content to Design_Doc/Spec.md.
  - move and merge the Readme.md -> "Quick Start" content to Design_Doc/Operations.md.
  - Keep the Readme.md -> "Key Capabilities" / "Key Features" section and add a reference as "refer to Design_Doc/Spec.md -> Key Features"
  - Keep the Readme.md -> "Quick Start" section and add a reference as "refer to Design_Doc/Operations.md -> Quick Start"

License

I need to have license description in README.md, add a license section at the end of that file. I aim to use MIT open source license, make a general MIT description into README.md -> license section.
- Result Key Points of MIT License:
  - Permissions: Commercial use, modification, distribution, private use
  - Conditions: License and copyright notice must be included
  - Limitations: No liability, no warranty
  - Simple and permissive: One of the most open and flexible open source licenses
  The license section includes:
  - Copyright notice placeholder (2026 Reverse Proxy Project)
  - Full MIT License legal text
  - Clear statement of permissions and limitations
  - Standard formatting with code block for readability
- Choose MIT
  - Permissions: Commercial use, modification, distribution, private use
  - No explicit patent grant, so patent not grants everyone downstream.

Re-structure the whole project to run at local Target computer only

Code

For the code deploy-traefik.sh, original be auto-sys-deploy.sh, it should be this old block diagram i mentioned before:

                                              +----------------------------+
                                              | Target Server              |
                                              |                            |
                                              |    +---------+             |
                                              |    |         |             |
                                              |    | Traefik |             |
+---------------------+                        |    |         |             |
| Any Linux Computer  |                        |    +---------+             |
|                     |                        |       ^                    |
| +-------------+     |                        |       |                    |
| |             |     |  Setup Reverse Proxy   |  +----+------------------+ |
| | This        +-----+------------------------+->|                       | |
| | Automatical |     |  for your existing     |  | Reverse Proxy Setting | |
| | System      |<-+  |  application           |  | eg. www.domain.com    | |
| |             |  |  |                        |  |                       | |
| +-------------+  |  |                        |  +------+----------------+ |
|                  |  |                        |         |                  |
|                .env |                        |         v                  |
|                     |                        |     +-------------+        |
+---------------------+                        |     |             |        |
                                              |     | Existing    |        |
                                              |     | Application |        |
                                              |     |             |        |
                                              |     +-------------+        |
                                              |                            |
                                              +----------------------------+

i aim to change this code to follow Design_Doc/Spec.md -> Key Features -> Approaches -> Traefik Only -> Architecture. I do not find you have this code modification at previous actions. So, modify the code deploy-traefik.sh too.

Result -- Code Changes (deploy-traefik.sh) Architecture Change: The script now runs directly on the same server where the application is hosted, eliminating SSH-based remote operations for Traefik mode.

Key modifications:
- Removed SSH-related variables (TARGET_SERVER, TARGET_USER, SSH_PORT, SSH_KEY_FILE_NAME, etc.)
- Added local deployment variables (LOCAL_SERVICE_NAME, LOCAL_SERVICE_PORT)
- Replaced ssh_exec() and scp_upload() with local_docker_exec() and local_volume_copy()
- Renamed functions to reflect local operations:
  - check_app_service_on_target → check_app_service_local
  - create_traefik_container_on_target → create_traefik_container_local
  - configure_traefik_on_target → configure_traefik_local
  - check_status_on_target → check_status_local
  - view_traefik_logs → view_traefik_logs_local
- Removed the deploy command (file deployment via SSH)
- Updated usage help to reflect new environment variables

Doc.
- I would like to move the Readme.md -> "Key Capabilities" section to Design_Doc/Spec.md.
- I would like to move the Readme.md -> "Quick Start" section to Design_Doc/Operations.md.
- In Design_Doc/Tech_Desc.md, i added "Technical Architecture and Implementation Details" Section and move all your previous writing under this section.
- I need to keep the Design_Doc/Tech_Desc.md -> "AI Prompt" section and let you un-touch, but you removed this section, You find a way to recover this section to me, and put back at the end of Design_Doc/Tech_Desc.md.

a Demo to create a new application base the current architecture design

make a generic rvs-prxy system

In a case, i have two domains name, that means two .env-www-domain-com and .env-domain-com, their service are same to one container, say web-fe-1, i find it has one domain work, another does not. I see the reason as: it has two dynamic configuration files inside /etc/traefik/config/, say app-service-www.domain.com-web-fe-1.yml, and app-service-domain.com-web-fe-1.yml, inside them, the routers are same names, say web-fe-1-https and web-fe-1-http, the services name are same too, say web-fe-1-service. By observation, the names format of routers and services is container-name-https, container-name-http and container-name-service. So i aim to improve this name format rule, do not use container-name, it may share to diff. domains, so should use domain name inside the rule, eg. domain-name-https, domain-name-http, domain-name-service, etc.
Currently .env-p2prly1-ivantito-com as:
```
DOMAIN_NAME="p2prly1.ivantito.com"
LOCAL_SERVICE_NAME="iroh-relay"
LOCAL_SERVICE_PORT="80"
DOCKER_NETWORK="traefik-public"
EXTRA_ENTRYPOINTS="quic=:443/udp"
```
- The app. requests to have two service ports, currently is LOCAL_SERVICE_PORT="80", i need to modify to same container / service name as "iroh-relay", but it accepts two ports: 80/tcp & 4443/udp. Actually the .env-p2prly1-ivantito-com aims to set a) :443/udp at host to 4443/udp at iroh-relay container, b) :443/tcp at host to 80/tcp at iroh-relay container. Modify the deploy-rvs-prxy.sh to support this multiple content at LOCAL_SERVICE_PORT.
- a) After the above modification, i cannot see the dashboard now in http://localhost:8080/, you investigate and resolve it, b) Original code as clean the whole docker-compose.yml finally, however, it does not good for verification the condition of traefik container, i aim to leave it into /tmp/docker-compose.yml for reference. You mark this info. into the Design_Doc/Operations.md.
Currently the traefik setting is fixed by docker-compose.yml, such as:
```
command:
  - '--entrypoints.web.address=:80'
  - '--entrypoints.websecure.address=:443'
ports:
  - '80:80'
  - '443:443'
```
- Recently, i aim to add a new entrypoints as quic in ":443/udp", and open container port to host too by docker-compose.yml.
- i aim we can have dynamic setting of entrypoints and host ports openning during the a) 1st time setup by this script, b) traefik running for a while with flxible setting of entrypoints and host ports.
- I see the new variable "EXTRA_ENTRYPOINTS", my current condition is a) the traefik container is running, b) i aim to dynamically add new entrypoints and open container port, i know we need to start the container with traefik inside. I cannot see the operation flow / steps to guide me to do this issue. You add back into Design_Doc/Operations.md, i need clear step by step guide in operation doc. for current and future reference.
i find setup_traefik_only() and create_traefik_container_on_target() have similar function as Post-Execution Command Reference, it seems duplicated. Analysis both, then merge all fucntions into one. By the way, regarding Post-Execution Command Reference, reference from /ws/repos/auto/autoSysDepl/Design_Doc/DevProc.md -> Section "Creating Automated Script to Setup an Environment" -> "Common content for a auto. script" -> "Automated Development Environment Provisioning via auto-sys-deploy.sh" -> "Post-Execution Command Reference" to implement current Post-Execution Command Reference, such as: "Run Container locally" cmd.
- i find show_traefik_commands() which shows the "Post-Execution Command Reference", it is called by setup_traefik_only() and create_traefik_container_on_target(). Why does it need to show up twice time to user? Improve the code, the "Post-Execution Command Reference" should show once when you complete all tasks.
Implement what we discussed we summary at Design_Doc/*.md files. You now implement this script code following all we discussed into auto-sys-deploy.sh beside the .env.development which as the parameters we aim to passing in.
- 1. I rename the file name of implmentation of script from instructions.md to implement_script.md; 2) i have a wrong assumption before as at any computer. It is wrong, end-user runs the script (we are now workinig on it) must be same computer to the mentioned service which opens the port "INTERNAL_SERVICE_PORT", and connect to it by docker network "DOCKER_NETWORK"; 3) i do not download manually, i aim to run the script by this way as download and run: ssh -i ~/.ssh/itl-devs1 -o StrictHostKeyChecking=accept-new -p 13076 ubuntu@cmty-repos2.ivantito.com "cat /repos/repos/cmptr-infra/rvs-prxy/auto-sys-deploy.sh" bash -s -- setup-rvs-prxy or another server as ssh -i ~/.ssh/itl-devs1 -o StrictHostKeyChecking=accept-new -p 13072 ubuntu@cmty-repos1.ivantito.com "cat /wws/repos/cmptr-infra/rvs-prxy/auto-sys-deploy.sh" bash -s -- setup-rvs-prxy, 4) i mentioned end-user must well prepare the .env* (using .env.development as example at this moment); 5) modify the auto-sys-deploy.sh and corresponding doc. at Design_Doc/*.md files.
- Reference Design_Doc\auto-sys-deploy-ref.sh and Design_Doc\update-compose-config-ref.sh, We merged the these two script into ONE script auto-sys-deploy.sh. Re-verify the merge of code to form finally auto-sys-deploy.sh. After this merge, then we do not need SCRIPT_PATH and DOWNLOAD_SOURCE any more, remove these two variables from auto-sys-deploy.sh and any documents.
- i read the code auto-sys-deploy.sh which has [[ "$command" == "setup-frpc" ]], It is enoough for [[ "$command" == "setup-rvs-prxy" ]] at this moment. So remove [[ "$command" == "setup-frpc" ]] section and corresponding code. Update corresponding doc. too.
- I am testing the auto-sys-deploy.sh step by step: 1) In Design_Doc/procedure.md, i modified the "Run the Deployment Script" as ssh -i ~/.ssh/itl-devs1 -o StrictHostKeyChecking=accept-new -p 13076 ubuntu@cmty-repos2.ivantito.com "cat /repos/repos/cmptr-infra/rvs-prxy/auto-sys-deploy.sh" | bash -s -- setup-rvs-prxy which i tested as i need to have | between the download script and bash. 2) i find volume name as rad-git-sshd-itl-frpc-wacraftlink-frpc, the docker volume name should be ${THIS_INSTANCE}-frpc, where INSTANCE_NAME from .env.development, i.e. wacraftlink-frpc. 3) Further Proxy settings, eg. "First proxy (rad)" or "Web Proxy Configuration", it is application depending, do not create them always. So, only detect .env* has corresponding value, such as: PROXY_WEB_PORT which format must be PROXY_ANY_NAME_PORT, then dynamically add it, if no mentioned at .env*, that means this application does not request proxy port.
- I am testing the auto-sys-deploy.sh step by step: 1) it comes out this issue:
```
...
[INFO] Extracted FRP server address: 199.241.138.188
[ERROR] Failed to extract remote ports from configuration
[INFO] Skipping proxy server configuration update
...
```
  - From Design_Doc\procedure.md -> "Step 7: Configure Proxy Settings", it mentions "Dynamic Proxy Configuration", so modify the code at auto-sys-deploy.sh -> setup_rvs_prxy() -> "# Extract remote ports" section -> handles "rad_port ssh_port web_port", but actually, it should not fixed these three ports, it should be dynamically handles those port(s) depends on PROXY_*_PORT environment variables from .env*. So modify the auto-sys-deploy.sh code, and the Design_Doc\procedure.md -> "Step 7: Configure Proxy Settings" which should be removed the i) Rad Proxy Configuration, ii) SSH Proxy Configuration, iii) Web Proxy Configuration. You also scan all other documents which should remove these three items too.
  - From auto-sys-deploy.sh -> setup_rvs_prxy() -> "# Check if we have at least one port to configure" section -> handles "if [ ${#all_ports[@]} -ge 3 ];" which should not be -ge 3, improve the code.
  - I find the code and document are stukk glue to "PROXY_RAD_PORT", "PROXY_SSH_PORT" and "PROXY_WEB_PORT", not using dynamical way, eg. 1) generate_frpc_config() -> "# Check for common proxy variables from .env file", this should be replaced by "# Process PROXY_*_PORT variables if they exist in environment", 2) at Design_Doc/procedure.md -> "Step 7: Configure Proxy Settings", still have "Default rad proxy", "Default SSH proxy", "Default web proxy", they should be replaced by PROXY_*_PORT environment variables. Improce the code and document.
  - I find update_proxy_server_config() twice times at auto-sys-deploy.sh, so, creating "/tmp/update-compose-$THIS_INSTANCE.sh" twice too, analysis and improve the code.
  - i find the current format of cat /from/frpc.toml
```
serverAddr = "199.241.138.188"
serverPort = 16999

[[proxies]]
name = "web-wacraftlink"
type = "tcp"
localPort =
localIP = "127.0.0.1"
remotePort = 3000:12077
```
    - it should be
```
serverAddr = "199.241.138.188"
serverPort = 16999

[[proxies]]
name = "web-wacraftlink"
type = "tcp"
localPort = 3000
localIP = "127.0.0.1"
remotePort = 12077
```
      which 3000 be moved to localPort, and remotePort as a poprt number only, no :. Improve the code.
  - Remind to keep the .env file at last, since the .env is this setup all parameters.
- i have following issue of "Invalid proxy configuration format"
```
`ssh -i ~/.ssh/itl-devs1 -o StrictHostKeyChecking=accept-new -p 13076 ubuntu@cmty-repos2.ivantito.com "cat /repos/repos/cmptr-infra/rvs-prxy/auto-sys-deploy.sh" | bash -s -- setup-rvs-prxy`
...
[INFO] Using FRP server port: 16999
[INFO] Adding web proxy: local port 3000 to remote port 12077
[ERROR] Invalid proxy configuration format: web-:3000:12077
[INFO] Creating/updating frpc.toml configuration
[INFO] FRP client configuration created successfully
...
```
  - When Error occur, should stop any further processes.
- Inside auto-sys-deploy.sh, it has update_ports_config() and update_ports_config(), i find it seems duplicate code, these codes should be run at FRP_SERVER_ADDR, so these functions should be located inside "$temp_script", but i find another code as one of general function of auto-sys-deploy.sh. Analysis the code, and remove the duplicating and dead code.
  - For check_ports_config_status(), check_labels_config_status(), and find_section_insertion_point() are same situation as duplicate code. Analysis the code, and remove the duplicating and dead code.
- From .env* -> PROXY_*_PORT, it creates this currently:
```
# XXXXX Self-hosting ports ====
- "12077:12077/tcp"
- "t1.wacraftlink.com.hk:t1.wacraftlink.com.hk/tcp"
# =========================
```
  In current case .env.development as PROXY_WEB_PORT=12077, so comes out about, however, it has a issue of - "t1.wacraftlink.com.hk:t1.wacraftlink.com.hk/tcp" which should not exist, only - "12077:12077/tcp" is enough due to .env.development as PROXY_WEB_PORT=12077 only.
- When i cat frpc.toml
```
serverAddr = "199.241.138.188"
serverPort = 16999

[[proxies]]
name = "web-wacraftlink"
type = "tcp"
localPort = 3000
localIP = "127.0.0.1"
remotePort = 12077
```
  - for localIP, it should not use IP, it should use docker container name, since we are use docker network. So the container should follow this rule as ${INSTANCE_NAME}-app where ${INSTANCE_NAME} from .env*. Modify the code to prepare a right frpc.toml.
- From .env*, it has ${DOCKER_NETWORK} variable, however, i do not fin it to apply into docker run ... cmd applying into the frpc container. Add it back.
- From auto-sys-deploy.sh, it has "Proceed with deployment? (OK/Cancel) [Cancel]: OK", disable the part of code, do not remove it, only disable it, do not need to ask any more for operation smoothly;
- i find the content of "$temp_script" is duplicated, 1st item as "746 to 1126" and 2nd item as "1127 to 1507". Verify these two items, then merge the content, finally remove the last one.
  - i find seems duplicated function restart_docker_compose() exists twice, verify do we need to duplicate it?
  - ~~update_ports_config() function seems exist twice times inside the "$temp_script", verify it which one should be right, then remove the duplicated one.~~
- From .env*, we have FRP_SERVER_ADDR variable, i aim to add a FRP_SERVER_USER to instead the currently hardcode of teenfuture user.
- For generate_frpc_config() -> handle frpc.toml content -> config_content+="localIP = \"${THIS_INSTANCE}-app\"\n", i aim to change from ${THIS_INSTANCE}-app to ${SERVICE_DOCKER_CONTAINER_NAME} from .env*. I have already updated the .env.development and .env.example. You update the auto-sys-deploy.sh code.
- From .env* -> PROXY_*_PORT, it creates this currently:
```
# XXXXX Self-hosting ports ====
- "12077:12077/tcp"
# =========================
```
  - if it is PROXY_WEB_PORT, it mentions as WEB, we do not care the port number even other than 80 and 443, we still skip the section "# XXXXX Self-hosting ports ====", that means no this section present at apps/zzthis/docker-compose.app.yml, otherwise other PROXY_XXXX_PORT which is XXXX is not WEB, then keep this section.
  - I am in the case of PROXY_WEB_PORT=12077 from .env.development now, but this section "# XXXXX Self-hosting ports ====" is still exist.
  - i review the auto-sys-deploy.sh code -> update_ports_config() -> handle local INSTANCE_MARKER ..., it does not add any logic matching the above i just mentioned. Modify the code.
  - if it is PROXY_WEB_PORT, since it is web, so should be shared common pport 443 and 80, so, the above section "# XXXXX Self-hosting ports ====" can skip it. or other PROXY_*_PORT except PROXY_WEB_PORT, should still keep this section.
- ~~Currently it shows this command cd /data/ssd/rvs-prxy/frps/ && ./stop.sh && ./start.sh for manually to execute.~~ For manually testing as better, since this is production proxy, cannot always restart.

make a generic doc. for this arch.

Reference Design_Doc\auto-sys-deploy-ref.sh and Design_Doc\update-compose-config-ref.sh, the current procedure as below:
- Download from cmty-repos2.ivantito.com: ssh -i ~/.ssh/itl-devs1 -o StrictHostKeyChecking=accept-new -p 13076 ubuntu@cmty-repos2.ivantito.com "cat /repos/repos/cmptr-infra/rvs-prxy/auto-sys-deploy.sh" bash -s -- setup-rvs-prxy
Download from cmty-repos1.ivantito.com: ssh -i ~/.ssh/itl-devs1 -o StrictHostKeyChecking=accept-new -p 13072 ubuntu@cmty-repos1.ivantito.com "cat /wws/repos/cmptr-infra/rvs-prxy/auto-sys-deploy.sh" bash -s -- setup-rvs-prxy
- Windows -- not yet implement
- You see the DOWNLOAD_SOURCE and SCRIPT_PATH are same url and path to how to download auto-sys-deploy.sh. Give me better method as shorter of whole command. Otherwise, see is it good to merge auto-sys-deploy.sh and update-compose-config.sh together, then the length of command can be shorter.
- For .env file, it must be created by end-user at their any local computer with same path of auto-sys-deploy.sh.
- Result -- shorter_cmd.md
explain to me the purpose of "DOWNLOAD_SOURCE" from our previous discussion.
- Based on our previous discussion and the architecture documentation, the purpose of the DOWNLOAD_SOURCE environment variable is:
- The DOWNLOAD_SOURCE is used to specify the source location from which the update-compose-config.sh script can download the necessary configuration update script to run on the proxy server.
- Looking at the architecture flow in action section of the documentation, when the auto-sys-deploy.sh script executes, it eventually calls the update_proxy_server_config function which:
1. Creates a temporary script to run on the proxy server
2. This script needs to download and execute the update-compose-config.sh script on the proxy server
3. The DOWNLOAD_SOURCE variable defines where this script should be downloaded from
- The download mechanism supports different source types:
- HTTP/HTTPS URLs (e.g., https://raw.githubusercontent.com/username/repository/main)
- SSH commands or local paths
- The script can download itself using tools like curl or wget from the specified source
- This design allows the system to be flexible about where the configuration update script is stored, enabling scenarios where:
- The script is stored in a remote repository (like GitHub/GitLab)
- The script is accessed via SSH from another server
- The script is available from a local file path
- The DOWNLOAD_SOURCE enables the deployment system to remotely update the proxy server's configuration without requiring the script to be pre-staged on the proxy server, making the architecture more flexible and deployable from various environments.
For connecting the internal service, i aim to narrow down interface as: i assume the service is using docker container with expose port, eg. 3000, so this "Generic Reverse Proxy" is connecting into another service docker container by expose port. This expose port number as one of parameter at .env*. As well, connect into the service docker container by docker network which mentioned before. Add this concept into Design/architecture.md and Design/procedure.md.
From Design/procedure.md, i aim to add .env or .env.development or .env.production as default values instead of the questions during the script to run. If some parameter(s) is / are missed at .env*, then will still ask question(s). Every answered question(s) will auto. add into .env* as default value for next time. Add this concept into Design/architecture.md and Design/procedure.md.
- create a demo .env.example as reference to let end-user easy to follow.
I need you to guide me step by step to make my internal service connecting to my public domain.
- Reference from following doc.:
  - Design/architecture.md
  - Design/auto-sys-deploy.sh.md
  - Design/update-compose-config.sh.md
  - Design/auto-sys-deploy-ref.sh
  - Design/update-compose-config-ref.sh
  - Design/DevProc.md
- Finally, i need a worked setting following above guideline, and a step by step guideline (Design/procedure.md) for next time, next application.
Add more detail into Design_Doc/architecture.md: 1) Add block diagram(s) as visualization of the description of Design_Doc/architecture.md, 2) attached auto-sys-deploy-ref.sh and update-compose-config-ref.sh with corresponding auto-sys-deploy.sh.md and update-compose-config.sh.md as an example, using real example parameters, outputs, etc. during the explanation.
Base your understand of auto-sys-deploy-ref.sh and update-compose-config-ref.sh with your mardown documents at Design_Doc/. I aim to have a summary document at Design_Doc/architecture.md, it talks about the generic concept of this architecture which can apply to any applications with clearly listing the parameters and corresponding outputs. For example, currently auto-sys-deploy-ref.sh and update-compose-config-ref.sh:
- Prerequisites
  - Using FRP (fast reverse proxy) service with frpc and frps
  - using Traefik
  - Docker and Docker Compose installed
  - SSH key at ~/.ssh/itl-devs1 for proxy server access
  - DOWNLOAD_SOURCE environment variable set
  - User permissions for Docker commands
  - SSH keys for authentication (~/.ssh/authorized_keys and ~/.ssh/devs1)
- parameters
  - Instance Name: Alphanumeric, hyphens, and underscores only
  - Docker Network: Existing Docker network or custom network name
  - FRP Server Address: IP address of the FRP server
  - FRP Server Port: Default is 16999
  - Proxy Ports: Configurable remote ports for rad (default 8776), ssh (default 22), and web (default 80) proxies
  - application port(s)
  - Domain name for Traefik routing rules
- outcomes
  - public domain connected to a internal service.
- etc.

Understand how previous to do

From .env.sample or .env.development -> INSTANCE_NAME variable, find out the purpose of this variable in this project, then explain to me.
Analysis and explain these two scripts to me: auto-sys-deploy-ref.sh and update-compose-config-ref.sh; Write your explaination into Design_Doc/auto-sys-deploy.sh.md and Design_Doc/update-compose-config.sh.md corresponding.

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