Add CLI flag to specify Docker version

[mk4no1]

my docker api version is 1.37 ,Echo is Docker API was unreachable: Error response from daemon: client version 1.39 is too new. Maximum supported API version is 1.37 ;Docker API was unreachable:error during connect: Get "http://00:0C:29:C6:5D:36:2375/v1.39/info": dial tcp: lookup 00:0C:29:C6:5D:36: no such host

[Ullaakut]

Hi @mk4no1 ! Thanks for opening this issue.

The error is pretty clear: there is a version mismatch. The docker API you are attempting to attack uses v1.37 while Gorsair expects the v1.39.

This can be fixed by passing the argument 1.37 instead of 1.39 in the calls to client.NewClientWithOpts.

Feel free to implement this feature if you'd like, or I can leave this as a feature ticket to be taken by whoever is interested. It's pretty simple, the tasks would be:

• Add a CLI flag called --docker-version that is v1.39 by default but can be set to whatever
• Pass this flag to the call(s) to client.NewClientWithOpts

It should be quite fast and easy to implement, however I do not have time to work on Gorsair at the moment unfortunately.