This is a local setup using Vagrant with VMware Fusion to demonstrate a mixed Linux and Windows Docker swarm-mode.
There are four VM's with the following internal network and IP addresses:
| VM | IP address | Memory | Type |
|---|---|---|---|
| sw-lin-01 | 192.168.36.2 | 2GB | Manager |
| sw-lin-02 | 192.168.36.3 | 2GB | Worker |
| sw-win-01 | 192.168.36.4 | 2GB | Worker |
| sw-win-02 | 192.168.36.5 | 2GB | Worker |
To create the four node cluster run
vagrant up
Depending on your host's memory you may want to spin up only two nodes to have a minimal Linux and Windows Server cluster.
vagrant up sw-lin-01 sw-win-01
The node sw-lin-01 is the Swarm manager.
The nodes sw-lin-02, sw-win-01 and sw-win-01 are Swarm workers.
When spinning up the manager node it also starts the Docker swarm visualizer as a service. You can then open the visualizer with
open http://192.168.36.2:8080
The folder demo contains some helper scripts to use the overlay network. Beginning with Windows Server 2016 update 1066 or Windows 10 Creators Update you can use overlay network.
The overlay network also works in a mixed Linux and Windows Docker swarm.
Log into the manager node with vagrant ssh sw-lin-01 and start the service with docker service create --name=whoami -p 8000:8000 -e PORT=8000 stefanscherer/whoami:1.2.0
Or just run the helper script from your host machine
demo/start-whoami.sh
You can access the whoami service from your host with curl http://192.168.36.2:8000 and it should respond with the hostname of the container and the operating system.
There is a helper script that will curl twice per second. Run this script in a second terminal.
demo/curl-whoami.sh
Log into the manager node and run docker service scale whoami=4 to scale up the service.
Or use the helper script
demo/scale-whoami.sh 4
This is an example with docker swarm scale whoami=3 getting responses from both Linux and Windows nodes:
