VoucherVault is a web application that allows you to manage coupons, vouchers and gift cards digitally. It provides a web portal that is mobile friendly and easy to use. Additionally, it supports expiry notifications via Apprise URLs that will frequently remind you to redeem your stuff. In this step by step guide I will show you how to install VoucherVault on your Synology NAS using Docker & Portainer.

💡Note: This guide works perfectly with the latest VoucherVault v1.22.11 release.

• STEP 1

Please Support My work by Making a Donation.

• STEP 2

Install Portainer using my step by step guide. If you already have Portainer installed on your Synology NAS, skip this STEP. Attention: Make sure you have installed the latest Portainer version.

• STEP 3

Make sure you have a synology.me Wildcard Certificate. Follow my guide to get a Wildcard Certificate. If you already have a synology.me Wildcard certificate, skip this STEP.

• STEP 4

Go to Control Panel / Login Portal / Advanced Tab / click Reverse Proxy. Follow the instructions in the image below.

• STEP 5

Now click the “Create” button. Follow the instructions in the image below.

• STEP 6

After you click the Create button, the window below will open. Follow the instructions in the image below.

On the General area, set the Reverse Proxy Name description: type in Voucher. After that, add the following instructions:

Source:
Protocol: HTTPS
Hostname: voucher.yourname.synology.me
Port: 443

Check Enable HSTS

Destination:
Protocol: HTTP
Hostname: localhost
Port: 8864

• STEP 7

On the Reverse Proxy Rules, click the Custom Header tab. Click Create and then, from the drop-down menu, click WebSocket. After you click on WebSocket, two Header Names and two Values will be automatically added. Click Save. Follow the instructions in the image below.

• STEP 8

Go to Control Panel / Network / Connectivity tab/ Check Enable HTTP/2 then click Apply. Follow the instructions in the image below.

• STEP 9

Go to Control Panel / Security / Advanced tab/ Check Enable HTTP Compression then click Apply. Follow the instructions in the image below.

• STEP 10

Go to File Station and open the docker folder. Inside the docker folder, create one new folder and name it vouchervault. Follow the instructions in the image below.
Note: Be careful to enter only lowercase, not uppercase letters.

• STEP 11

Now create two new folders inside the vouchervault folder that you created at STEP 10 and name them data and db. Follow the instructions in the image below.
Note: Be careful to enter only lowercase, not uppercase letters.

• STEP 12

Log into Portainer using your username and password. On the left sidebar in Portainer, click on Home then Live connect. Follow the instructions in the image below.

On the left sidebar in Portainer, click on Stacks then + Add stack. Follow the instructions in the image below.

• STEP 13

In the Name field type in vouchervault. Follow the instructions in the image below.

Note: Copy Paste the code below in the Portainer Stacks Web editor.

services:
  vouchervault:
    image: l4rm4nd/vouchervault:latest
    container_name: VoucherVault
    user: 0:0
    healthcheck:
      test: timeout 10s bash -c ':> /dev/tcp/127.0.0.1/8000' || exit 1
      interval: 10s
      timeout: 5s
      retries: 3
      start_period: 90s
    environment:
       DOMAIN: voucher.yourname.synology.me
       ALLOWED_HOSTS: voucher.yourname.synology.me
       SECRET_KEY: dOxZYTTZgXKMHkqLBIQVImayQXAVWdzGBPuFJKggzcgvgPJPXpWzqzKaUOIOGGIr
       SECURE_COOKIES: True
       POSTGRES_PORT: 5432
       POSTGRES_HOST: vouchervault-db
       DB_ENGINE: postgres
       POSTGRES_USER: vouchervaultuser
       POSTGRES_PASSWORD: vouchervaultpass
       EXPIRY_THRESHOLD_DAYS: 90 # Send notifications xx days prior expiry; default is 30.
    ports:
      - 8864:8000
    volumes:
      - /etc/localtime:/etc/localtime:ro
      - /etc/TZ:/etc/timezone:ro
      - /volume1/docker/vouchervault/data:/opt/app/database:rw
    depends_on: 
      - db
    restart: on-failure:5

  db:
    image: postgres:18
    container_name: VoucherVault-DB
    hostname: vouchervault-db
    security_opt:
      - no-new-privileges:true
    healthcheck:
      test: ["CMD", "pg_isready", "-q", "-d", "vouchervault", "-U", "vouchervaultuser"]
      timeout: 45s
      interval: 10s
      retries: 10
    volumes:
      - /volume1/docker/vouchervault/db:/var/lib/postgresql:rw
    environment:
      POSTGRES_DB: vouchervault
      POSTGRES_USER: vouchervaultuser
      POSTGRES_PASSWORD: vouchervaultpass
    restart: on-failure:5

Note: Before you paste the code above in the Web editor area below, change the value for DOMAIN and type in your own synology.me DDNS that you have previously created at STEP 6 without https:// at the beginning.
Note: Before you paste the code above in the Web editor area below, change the value for ALLOWED_HOSTS and type in your own synology.me DDNS that you have previously created at STEP 6 without https:// at the beginning.
Note: Before you paste the code above in the Web editor area below, change the value for SECRET_KEY. (Generate your own Random 64 length SECRET_KEY.)

• STEP 14

Scroll down on the page until you see a button named Deploy the stack. Click on it. Follow the instructions in the image below. The installation process can take up to a few minutes. It will depend on your Internet speed connection.

• STEP 15

If everything goes right, you will see the following message at the top right of your screen: “Success Stack successfully deployed“.

• STEP 16

On the left Portainer sidebar, click Containers then check for the VoucherVault container. Click the little log icon. Follow the instructions in the image below.

• STEP 17

Copy the Randomly generated password. You will need this password later at STEP 19. Follow the instructions in the image below.

• STEP 18

🟢Please Support My work by Making a Donation. Almost 99,9% of the people that install something using my guides forget to support my work, or just ignore STEP 1. I’ve been very honest about this aspect of my work since the beginning: I don’t run any ADS, I don’t require subscriptions, paid or otherwise, I don’t collect IPs, emails, and I don’t have any referral links from Amazon or other merchants. I also don’t have any POP-UPs or COOKIES. I have repeatedly been told over the years how much I have contributed to the community. It’s something I love doing and have been honest about my passion since the beginning. But I also Need The Community to Support me Back to be able to continue doing this work.

• STEP 19

Now open your browser and type in your HTTPS/SSL certificate like this https://voucher.yourname.synology.me that you have previously created at STEP 6. In my case it’s https://voucher.mariushosting.synology.me If everything goes right, you will see the VoucherVault login page. Type in the default username and the Randomly generated password that you have previously copied at STEP 17, then click Log in. Follow the instructions in the image below.

⚠️Warning: the default username is admin and the default password is the Randomly generated password at STEP 17

• STEP 20

Create your first item. Your VoucherVault dashboard at a glance! Follow the instructions in the image below.

Enjoy VoucherVault!

🆘TROUBLESHOOTING

If you encounter issues by using this container, make sure to check out the Common Docker issues article.

Note: Can I run Docker on my Synology NAS? See the supported models.
Note: How to Back Up Docker Containers on your Synology NAS.
Note: Find out how to update the VoucherVault container with the latest image.
Note: How to Free Disk Space on Your NAS if You Run Docker.
Note: How to Schedule Start & Stop For Docker Containers.
Note: How to Activate Email Notifications.
Note: How to Add Access Control Profile on Your NAS.
Note: How to Change Docker Containers Restart Policy.
Note: How to Use Docker Containers With VPN.
Note: Convert Docker Run Into Docker Compose.
Note: How to Clean Docker.
Note: How to Clean Docker Automatically.
Note: Best Practices When Using Docker and DDNS.
Note: Some Docker Containers Need WebSocket.
Note: Find out the Best NAS Models For Docker.

This post was updated on Wednesday / November 5th, 2025 at 1:03 PM