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This commit copies Lukas Larsson's (@garazdawi) and Siri Hansen's (@sirihansen) example from: https://github.com/erlang/docker-erlang-example/tree/minikube-prom-graf
27 lines
820 B
Markdown
27 lines
820 B
Markdown
## Docker Cheatsheet
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* Remove all containers that are not running:
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$ docker rm $(docker ps -aq -f status=exited)
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* Remove dangling images:
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$ docker rmi $(docker images -f dangling=true -q)
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* Attach to running docker:
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$ docker exec -i -t NameOrId /bin/sh
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## Core generation
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* `/proc/sys/core_pattern` is clearly persisted on the host. Taking note of
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its content before starting any endeavour is therefore highly encouraged.
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* dockers `--privileged` is necessary for a gdb session to catch the stack,
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without privileges, gdb just complains about No stack. Google still is
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hardly knowledgeable about this phenomenon...
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* setting ulimit on docker run works perfectly, for future googlers (syntax hard to find),
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a docker-compose example:
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ulimits:
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core: -1
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