You would then replicate the configuration of the virtual machine between the two Mac Minis, implement a heart beat system and have the passive computer automatically take over when the heart beat stops. The storage system itself needs to be highly available as well. One of the simplest setups here is to have the virtual machine disk itself be stored on a storage system shared by a pair of Mac Minis (or more). This usually comes with some draw backs, but they are the same here as in an Windows environment. In other cases, you can use VMs to have an easier way to implement for example an active/passive fail-over style high availability. In some cases it is not optimal to use virtual machines at all, but rather use software running bare-metal to implement the highly available services. Is it a highly available network storage system you require? - is it a highly available build server? is it a highly available rendering system? The way to setup a HA system depends on the services you want the system to offer. This interface is actually within HyperKit.Yes, high-availability for macOS definitely exists.Īs on Windows, you cannot just push some magical button and have any computer with whatever generic software suddenly run in a HA system, being it active/passive or active/active. Documentation on Docker for Mac limitationsīecause of the way networking is implemented in Docker for Mac, you cannot see a docker0 interface in macOS. This was for instance useful to me to associate the Webstorm nodeJS debugger to a nodeJS container (since at the time of writing, docker debugging is supported by Webstorm docker integration plugin, but not through unix sockets). Up to you to run the socat command on startup, if necessary.
Map what you want on tcp://localhost:2375 Socat TCP-LISTEN:2375,reuseaddr,fork,bind=localhost UNIX-CONNECT:/var/run/docker.sock
Run this socat command to forward TCP requests to the socket To provide a TCP connection for Docker for Mac: Hence you won't see them with docker-machine and you won't see another IP address than localhost.ĭocker for Windows relies on the HyperV hypervisor which allows a network connection to tcp://localhost:2375.ĭocker for Mac relies on the xhyve hypervisor, the way it's implemented only provides a connection through the socket unix:///var/run/docker.sock. In opposition to Docker toolbox, Docker for Windows and Docker for Mac are designed to give you the feeling that Docker is running directly on your OS, so they use lightweight virtual machines running under lightweight hypervisors (instead of VirtualBox) handled directly by the docker executable.
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