Python OOM Docker Quick'n'Dirty

hack.md

Run container with 200M MEM limit and swap off

docker run -it -m 200M --memory-swap 0 python

Now run ctop with single container view to see mem usage increasing

ctop // switch to single container view

Now allocate some bytes

>>> a = bytearray(1024*1024*50) // 50M
>>> a.extend(bytearray(1024*1024*200)) // Add 200M -> OOM
<OOM_Killer>

Verify it was the OOM_Killer

docker inspect c3061d12b078| jq '.[].State.OOMKilled'
true