Opengist is a self-hosted pastebin powered by Git, an alternative to Github Gist. It’s very lightweight and easy to use with Git integration for cloning, pulling, and pushing via HTTP or SSH Revision history. Opengist offers support for public and unlisted snippets, supports syntax highlighting, and much more. In this step by step guide I will show you how to install Opengist on your Synology NAS using Docker & Portainer.

💡Note: This guide works perfectly with the latest Opengist v1.9.1 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 Opengist. After that, add the following instructions:

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

Check Enable HSTS

Destination:
Protocol: HTTP
Hostname: localhost
Port: 6157

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

• STEP 11

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 12

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

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

version: "3.9"
services:
  opengist:
    container_name: Opengist
    image: ghcr.io/thomiceli/opengist:1
    mem_limit: 2g
    cpu_shares: 768
    security_opt:
      - no-new-privileges:true
    restart: on-failure:5
    ports:
      - 6157:6157
     #- 2222:2222 # SSH port, can be removed if you don't use SSH
    volumes:
      - /volume1/docker/opengist:/opengist
    environment:
      UID: 1026
      GID: 100

Note: Before you paste the code above in the Web editor area below, change the value numbers for UID and GID with your own 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.

• STEP 13

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 14

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

• STEP 15

🟢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 16

Now open your browser and type in your HTTPS/SSL certificate like this https://opengist.yourname.synology.me that you have previously created at STEP 6. In my case it’s https://opengist.mariushosting.synology.me If everything goes right, you will see the Opengist Login page. At the top right of the page click Register. Follow the instructions in the image below.

• STEP 17

Type in your own Username and Password then click Register. Follow the instructions in the image below.

• STEP 18

At the top right of the page you can switch to Dark Mode. Give a Title and Description to your Gist. Type in your code or copy paste it from somewhere else. You can also add from a file. Hit the Create public gist button. Follow the instructions in the image below.

• STEP 19

You can publicly share your link, then download a ZIP file. Follow the instructions in the image below.

• STEP 20

You can also disable or enable signup. At the top right of the page under your name click Admin then Configuration. Switch the button to on to Disable signup. Follow the instructions in the image below.

Enjoy Opengist!

🆘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 Opengist 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 Wednesday / February 19th, 2025 at 4:47 PM