How to Install DocuSeal on Your Synology NAS

DocuSeal is an open source platform that provides secure and efficient digital document signing and processing. Create PDF forms to have them filled and signed online on any device with an easy-to-use, mobile-optimized web tool. In this step by step guide I will show you how to install DocuSeal on your Synology NAS using Docker & Portainer.

💡Note: This guide works perfectly with the latest DocuSeal v1.2.0 release.

STEP 1

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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 DocuSeal. After that, add the following instructions:

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

Check Enable HSTS

Destination:
Protocol: HTTP
Hostname: localhost
Port: 3766

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 docuseal. Follow the instructions in the image below.
Note: Be careful to enter only lowercase, not uppercase letters.

STEP 11

Now create one new folder inside the docuseal folder that you created at STEP 10 and name it 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 Stacks then + Add stack. Follow the instructions in the image below.

STEP 13

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

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

version: '3.9'
services:
  docuseal:
    image: docuseal/docuseal:latest
    container_name: DocuSeal
    ports:
      - 3766:3000
    volumes:
      - /volume1/docker/docuseal:/data:rw
    environment:
      FORCE_SSL: true
      HOST: https://docuseal.yourname.synology.me
      DATABASE_URL: postgresql://postgres:postgres@postgres:5432/docuseal
    depends_on:
      postgres:
        condition: service_healthy
        
  postgres:
    image: postgres
    container_name: DocuSeal-DB
    mem_limit: 256m
    cpu_shares: 768
    volumes:
      - /volume1/docker/docuseal/db:/var/lib/postgresql/data:rw
    environment:
      POSTGRES_USER: postgres
      POSTGRES_PASSWORD: postgres
      POSTGRES_DB: docuseal
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U postgres"]
      interval: 5s
      timeout: 5s
      retries: 5

Note: Before you paste the code above in the Web editor area below, change the value for HOST and type in your own synology.me DDNS that you have previously created at STEP 6 with https:// at the beginning.

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

Go back to STEP 1 or you will deal with karma 🙂.

STEP 17

Now open your browser and type in your HTTPS/SSL certificate like this https://docuseal.yourname.synology.me In my case it’s https://docuseal.mariushosting.synology.me If everything goes right, you will see the DocuSeal setup page. Type in your own details then click SUBMIT. Follow the instructions in the image below.