Simple demo that connects two applications running in different containers on different hosts via a virtual CAN.
In a nutshell, each container initializes a virtual CAN und starts a can2udp process.
In our demo we start the containers on the same docker engine and use candump as dummy application inside the container.
We assume that
- ports 6001 and 6002 are available
- that docker engine is running under 172.17.0.1
Note, since we initialize the CAN inside the container the NET_ADMIN capability is required.
To start the services and to attach to the logs run the following command.
docker-compose up
You can send a message on one of the local CANs as follows.
docker-compose exec one cansend vcan0 01a#11223344AABBCCDD
Note, this example does NOT WORK on Windows using WSL backend since there is no support for SocketCAN, see microsoft/WSL#5533.