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. You can also use Documenso as an alternative to Docuseal. 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 v1.8.3 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 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 three new folder inside the docuseal folder that you have previously created at STEP 10 and name them data, db, redis. 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.

services:
  docuseal:
    image: docuseal/docuseal:latest
    container_name: DocuSeal
    healthcheck:
      test: ["CMD-SHELL", "nc -z 127.0.0.1 3000 || exit 1"]
      interval: 10s
      timeout: 5s
      retries: 3
      start_period: 90s
    ports:
      - 3766:3000
    volumes:
      - /volume1/docker/docuseal/data:/data:rw
    environment:
      FORCE_SSL: true
      HOST: https://docuseal.yourname.synology.me
      DATABASE_URL: postgresql://docusealuser:docusealpass@db:5432/docuseal
      REDIS_URL: redis://:redispass@docuseal-redis:6379/0
      SECRET_KEY_BASE: fv51geikzd8hjopiwbiajxqdxhkz1o8v0j5kxu1tdu6my556smqo296ugw19e3iprxl7gtrktuqa71l1yc2h0bed1di6isw3p0xh5wh0gj096x2zl1gy45vpr762ujvc
    depends_on:
      db:
        condition: service_healthy
      redis:
        condition: service_healthy
        
  db:
    image: postgres:17
    container_name: DocuSeal-DB
    hostname: docuseal-db
    mem_limit: 1g
    cpu_shares: 1024
    security_opt:
      - no-new-privileges:true
    healthcheck:
      test: ["CMD", "pg_isready", "-q", "-d", "docuseal", "-U", "docusealuser"]
      timeout: 45s
      interval: 10s
      retries: 10
    volumes:
      - /volume1/docker/docuseal/db:/var/lib/postgresql/data:rw
    environment:
      POSTGRES_DB: docuseal
      POSTGRES_USER: docusealuser
      POSTGRES_PASSWORD: docusealpass
    restart: on-failure:5

  redis:
    image: redis:7
    container_name: DocuSeal-REDIS
    command:
      - /bin/sh
      - -c
      - redis-server --requirepass redispass
    hostname: docuseal-redis
    security_opt:
      - no-new-privileges:true
    healthcheck:
      test: ["CMD-SHELL", "redis-cli ping || exit 1"]
    user: 1026:100
    environment:
      - TZ=Europe/Bucharest
    volumes:
      - /volume1/docker/docuseal/redis:/data:rw
    restart: on-failure: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.
Note: Before you paste the code above in the Web editor area below, change the value for SECRET_KEY_BASE. (Generate your own 128 length SECRET_KEY_BASE.)
Note: Before you paste the code above in the Web editor area below, change the value numbers for user with your own UID and GID values. (Follow my step by step guide on how to do this.) 1026 is my personal UID value and 100 is my personal GID value. You have to type in your own values.
Note: Before you paste the code above in the Web editor area below, change the value for TZ. (Select your current Time Zone from this list.)

• 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.

• STEP 18

Click Skip. Follow the instructions in the image below.

• STEP 19

Click Upload New Document to upload new documents. Add PDF documents or images. Follow the instructions in the image below.

• STEP 20

Your DocuSeal documents at a glance!

• STEP 21

Set Up Email Notifications on DocuSeal.

Enjoy DocuSeal!

🆘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 DocuSeal 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.
Note: Activate Gmail SMTP For Docker Containers.

This post was updated on Thursday / December 19th, 2024 at 1:49 PM