Managing multiple Synology Docker instances with Portainer

Jan 24, 2024151

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To manage multiple QNAP NAS devices with Portainer, you need to follow these steps: 1. Set up the Docker on the NAS you want to manage by downloading and uploading the certificate file. 2. Execute SSH commands to create a Docker folder and unzip the certificate file into it. 3. Open the "Certificate" section in the preferences of Container Station to record the IP and port number for later use. 4. Add the Docker you want to manage in Portainer by selecting "Environment" and then "Add Environment". Choose "Docker Standalone" and enable TLS with the corresponding certificate file. Click "Connect" to finish the setup.

A white Synology has deployed Portainer to manage Docker, but the same is required for a black Synology. Since Synology must use its own signed certificate, the following settings can be used to enable Portainer to manage multiple Synology Docker instances.

1. Set up the Docker to be managed on the NAS

Open Container Station and go to Preferences > Certificates. Download the certificate file, which will be named cert.zip, and upload it to the container folder for later use.

2. Execute the following commands via SSH, one by one

mkdir -pv ~/.docker

unzip /share/Container/cert.zip -d ~/.docker

Make sure you have permission to execute the commands. If not, open the advanced file sharing permissions in the shared folder. Alternatively, you can manually extract the files and drag them into the .docker folder.

3. Open "Preferences > Certificates" in order to obtain the LAN IP address and port number for the environment variables.

4. Add the Docker to be managed in Portainer

Go to "Environments" and click "Add Environment".

Choose "Docker Standalone".

Select the API.

Enable TLS.

Add the corresponding certificate file.

Click "Connect" to finish.