Docker-selenium: How to set up node maxSessions and maxInstances?

[koala2012]

I started docker by this way:
docker run -d --link selenium-hub:hub -v /dev/shm:/dev/shm selenium/node-chrome:latest

How I can set the maxSessions and maxInstance?(I want to set up 10 instances(10 chrome) per container)

[anto-ac]

Interesting this has come up now, just when I was discussing something related to this with @diemol.

He has recommended one slot per node, which has worked around an issue I was experiencing with the most recent versions. However, I would like to understand what the background behind the recommendation is, because it seems a little bit of an overkill perhaps.

[ddavison]

To start the node with a different maxSessions or maxInstances, you need only to specify the variables!

docker run -d -e NODE_MAX_SESSION=10 -e NODE_MAX_INSTANCES=10 --link selenium-hub:hub -v /dev/shm:/dev/shm selenium/node-chrome:latest