[asan] add address sanitizer support to docker-sonic-vs

[Yakiv-Huryk]

Add address sanitizer support to docker-sonic-vs

Why I did it

To support docker-sonic-vs image with ASAN.

How I did it

• Made the supervisord.conf a template
• Added the 'log_path' environment variable for ASAN-enabled daemons
• Added supervisord.conf.j2 generation and ASAN lib to the docker-sonic-vs/Dockerfile.j2

How to verify it

• Made a build with ENABLE_ASAN=y
• Run the tests, checked ASAN reports

Which release branch to backport (provide reason below if selected)

• 201811
• 201911
• 202006
• 202012
• 202106
• 202111

Description for the changelog

Link to config_db schema for YANG module changes

A picture of a cute animal (not mandatory but encouraged)

[liat-grozovik]

/azp run Azure.sonic-buildimage

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[liat-grozovik]

@prsunny could you please help to review or suggest reviewer?

[saiarcot895]

It may be useful to also have it dump a core file (adding disable_coredump=0:unmap_shadow_on_exit=1:abort_on_error=1), so that it'd be easier to debug the cause of the issue after it exists.

[Yakiv-Huryk]

It may be useful to also have it dump a core file (adding disable_coredump=0:unmap_shadow_on_exit=1:abort_on_error=1), so that it'd be easier to debug the cause of the issue after it exists.

Currently, it's out of scope for this stage. The log with stack trace seems enough for the bugs that were found.
We might want to consider adding it in the future if we see that it's useful.

[liat-grozovik]

It may be useful to also have it dump a core file (adding disable_coredump=0:unmap_shadow_on_exit=1:abort_on_error=1), so that it'd be easier to debug the cause of the issue after it exists.

Currently, it's out of scope for this stage. The log with stack trace seems enough for the bugs that were found. We might want to consider adding it in the future if we see that it's useful.

i tend to agree. We have another feature of auto techsupport which is now extended to memory leaks and later can also be extended to asan. for now lets focus on enabling this functionality and later on enhance it