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[containercfgd] Add containercfgd and syslog rate limit configuration support #12489

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merged 7 commits into from
Dec 8, 2022

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Junchao-Mellanox
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HLD: sonic-net/SONiC#1049

Why I did it

Add a containercfgd to handler container side CONFIG DB changes

How I did it

  1. add a daemon containercfgd to run for each containers
  2. add syslog handler to handle syslog rate limit config change

How to verify it

unit test

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

  • 201811
  • 201911
  • 202006
  • 202012
  • 202106
  • 202111
  • 202205

Description for the changelog

Ensure to add label/tag for the feature raised. example - PR#2174 under sonic-utilities repo. where, Generic Config and Update feature has been labelled as GCU.

Link to config_db schema for YANG module changes

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

containercfgd.ContainerConfigDaemon.register_handler('LoadMock', mock_handler_cls)
daemon = containercfgd.ContainerConfigDaemon()
daemon.init_data_handler({})
mock_handler_instance.handle_init_data.assert_called_once

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@Junchao-Mellanox
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Build issue pending on PR #12510

@liat-grozovik
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/azp run Azure.sonic-buildimage

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Azure Pipelines successfully started running 1 pipeline(s).

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/azpw run Azure.sonic-buildimag

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/AzurePipelines run Azure.sonic-buildimag

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/AzurePipelines run Azure.sonic-buildimag

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/azprun Azure.sonic-buildimage

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/azp run Azure.sonic-buildimage

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/azpw run Azure.sonic-buildimage

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/AzurePipelines run Azure.sonic-buildimage

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/azpw run Azure.sonic-buildimage

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/azpw run Azure.sonic-buildimage

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/AzurePipelines run Azure.sonic-buildimage

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Hi @saiarcot895, could you please kindly help review this?

output = run_command('sonic-cfggen -d -t /usr/share/sonic/templates/rsyslog-container.conf.j2 -a "{{\\"target_ip\\": \\"{}\\", \\"container_name\\": \\"{}\\" }}"'.format(self.target_ip, container_name))
f.write(output)
run_command('cp {} {}'.format(self.TMP_SYSLOG_CONF_PATH, self.SYSLOG_CONF_PATH))
run_command("supervisorctl restart rsyslogd")
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Can these be split into individual entries (such as ["cp", self.TMP_SYSLOG_CONF_PATH, self.SYSLOG_CONF_PATH] and passed directly into subprocess.check_output instead of using shlex.split? That will prevent code injections from outside sources doing something that shouldn't be done.

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Hi @saiarcot895 , thanks for the comment. I suppose shlex.split will split cp /tmp/file /tmp/file_copy into ['cp', '/tmp/file', '/tmp/file_copy'], it also prevents code injections. And the benefit is that:

  1. The original command is a complete string which is more readable than a list
  2. shlex.split will do the split for user automatically which prevent user from incorrectly splitting command.

So, I prefer to keep this. What do you say?

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That's true, because it's split into an array, the first token will always be the command that gets executed. However, if, hypothetically, self.TMP_SYSLOG_CONF_PATH was /tmp/file name, then shlex.split will split cp /tmp/file name /tmp/file_copy into ["cp", "/tmp/file", "name", "/tmp/file_copy"], which is incorrect.

I think considering we know what these arguments should be, just doing the splitting ourselves would be better. (It would also make the JSON argument a couple lines above this a bit easier to read).

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fixed

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/azpw run Azure.sonic-buildimage

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/AzurePipelines run Azure.sonic-buildimage

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/azp run

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You have several pipelines (over 10) configured to build pull requests in this repository. Specify which pipelines you would like to run by using /azp run [pipelines] command. You can specify multiple pipelines using a comma separated list.

@saiarcot895 saiarcot895 merged commit 3b3837a into sonic-net:master Dec 8, 2022
@Junchao-Mellanox Junchao-Mellanox deleted the srl-cfgd branch December 20, 2022 03:41
mssonicbld pushed a commit to mssonicbld/sonic-buildimage that referenced this pull request Jan 14, 2023
… support (sonic-net#12489)

* [containercfgd] Add containercfgd and syslog rate limit configuration support

* Fix build issue

* Fix checker issue

* Fix review comment

* Fix review comment

* Update containercfgd.py
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Cherry-pick PR to 202211: #13361

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