Is it possible to add more than 1 netem subcommands?

[jordicenzano]

If you want to simulate a real network you have to add: losses, delay, corrupt, and rate.
And I could not find a way to run pumba with more than one of those subcommands.

I tried:
1- run 2 pumba containers with different settings (not working only 1 subcommand is applied)
2- Use follwing syntaxes (not working):

Test 1:
pumba netem --duration 5m delay --time 3000 mycontainer corrupt --percent 10 mycontainer

Test 2:
pumba netem --duration 5m delay --time 3000 corrupt --percent 10 mycontainer

Test 3:
pumba netem --duration 5m delay --time 3000 mycontainer --duration 5m corrupt --percent 10 mycontainer

[deanstef]

Any progress on that? Is it possible to run multiple netem subcommands to docker containers?

[jordicenzano]

I ended up installing netem in a docker and calling it directly. Then it is possible (and easy) to pass different parameters (simulating different network problems): https://github.com/jordicenzano/live-streaming-ingest-advanced-simulation
I hope it helps

[deanstef]

Thank you, it helps a lot.

Do you think I can use the same approach to simulate network latencies between docker containers and then, use pumba to inject OTHER random delays/packet-loss/corruption ??

What I want to do is to configure a network between containers with reasonable latencies and then simulate network problems with pumba.

I have some doubt because the concurrency of netem commands inside the containers and pumba.