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I have a Windows laptop with Docker Toolbox installed. So my backend services live in docker containers. Also, I have an Android Emulator with client application installed.

I know that I can get from Android Emulator to host's loopback by using 10.0.2.2 address. The problem is, that docker machine has its own address: 192.168.99.100 ( by default ).

How to make this work? Basically, I want to call 192.168.99.100:8080 from the Emulator. It is working well from Postman installed on Windows, but as far as I understand these are completely different networks, and this is the reason that it does not work out of the box.

Michał
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  • Are you using VirtualBox for both Android emulation and Docker? – Roman Mar 11 '17 at 17:33
  • I am using the default stack from Android Studio. I've check in VirtualBox if Emulator is using VirtualBox, and it seems it does not. – Michał Mar 11 '17 at 17:54

1 Answers1

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Ok I found two solutions:

VirtualBox port forwarding

https://stackoverflow.com/a/36458215/5076865 - After that you can access the docker app via 10.0.2.2:<your_port>

VirtualBox bridged adapter

Open docker-machine setting in VirtualBox and enable the 3rd network adapter and set it to the bridge mode. You should be able to access the docker app via 192.168.99.100:<your_port> directly from emulator.

For me the second solution is better, because I have <your_port> free on my docker host.

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Michał
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