Networking features in Docker for Mac VPN Passthrough. Docker for Mac’s networking can work when attached to a VPN. Port Mapping. Docker for Mac makes whatever is running on port 80 in the container (in this case. HTTP/HTTPS Proxy Support. Following is a summary of current.
Issue You can connect to Docker Engine via HTTP or named pipe, but you are unable to connect to Docker Engine from the local machine. Possible Cause Not being able to connect to Docker Engine from the local machine might be caused by the named pipe being blocked.
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You are mistaken, but here's an explanation of what's going on. First, to expand on your localhost comments in your post, it's also important to note that localhost is just an alias to 127.0.0.1, and 127.0.0.1 is just a loopback to the local network interface. Every container will reference 127.0.0.1 to itself since it has its own network interface. There are exceptions ( -net=none or if you use -net=host on Linux), but this is mostly true. To achieve what you want to do you need to use the IP of your machine's active interface, then you can simply use that IP to access it. On a Mac this will typically be en0 so you can run ifconfig en0 to get that IP. From there, you can use that IP to connect to anything running on your local machine that isn't Dockerized without using a round-about third party solution.
There are other ways to do this too, I would say ngrok in a container is a very round-about solution, but a clever workaround I suppose. That said, if you're already using Docker containers why wouldn't you just use a containerized version of MySQL or whichever database you choose? You can then simply link the containers and call it a day. Better yet, use Compose, since this is exactly what it was made for.