How to pass command parameters with arguments (for e.g --param1=arg1) to Docker container run command in Synology DSM

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I need to pass a command parameter with arguments in the style of --param1=arg1 to the run command of a docker container in Synology DSM. The docker application version in the package center is 17.05.0-0401.

On choosing a docker image and opening the Create Container window, I found the configuration for the command by going through the following steps:

  1. Click on the Advanced Settings button
  2. Click on the Environment tab
  3. Fill in the Command: value under Execution Command section (For e.g, execname --param1=arg1

However, I received the following error when creating the container.

Run command format error.
synology docker
1 Answers

Disclaimer: I am self documenting my own question in hope of helping others as surprisingly this question / issue was quite obscure to resolve.

While testing by trial and error, I discovered that the = character needs to be escaped with a backslash \. Therefore, the following command as per the question example will work correctly, execname --param1\=arg1.

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