[CRIU] How to save custom container properties?

[Pavel Tikhomirov]

We have virtualized core_pattern in VZ7 CT, which was needed by QA to 
catch coredumps in CT. The question is: How to c/r it with CRIU? It is 
not mainstream behaviour to have separate kernel.core_pattern sysctl in 
CT, so my first thought was in action scripts. But in that case, do we 
have some interface to save data collected by action script to some 
special image?

https://jira.sw.ru/browse/PSBM-44145

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Best regards, Tikhomirov Pavel
Software Developer, Virtuozzo.