Combining everything on a single node

I’ve created a custom docker containing opendistro elasticsearch, kibana and Logstash. All examples I’ve seen uses 3 or even more instances of docker:
2 elastic nodes
1 kibana node
1 logstash node
What’s a “good” reference set up to start with? Is it a bad idea having all components on the same docker instance?

you can start with this one:https://opendistro.github.io/for-elasticsearch-docs/docs/install/docker/#start-a-cluster but you need add logstash node for it.

just realized this is old question. not sure it’s still useful for you.