sonic-buildimage/files
Vadym Hlushko b7dfc5b280 [memory_checker] Add a specific log message in a case when the docker service is not running. (#16018)
#### Why I did it
To fix the logic introduced by [[memory_checker] Do not check memory usage of containers which are not created #11129](https://github.com/sonic-net/sonic-buildimage/pull/11129).
There could be a scenario before the reboot, where
1. The `docker service` has stopped
2. In a very short period of time, the monit service performs the `root@sonic:/home/admin# monit status container_memory_telemetry`

In such scenario, the `memory_checker` script will throw an error to the syslog:
```
ERR memory_checker: Failed to retrieve the running container list from docker daemon! Error message is: 'Error while fetching server API version: ('Connection aborted.', FileNotFoundError(2, 'No such file or directory'))'
```
But, actually, this scenario is a correct behavior, because when the docker service is stopped, the Unix socket is destroyed and that is why we could see the `FileNotFoundError(2, 'No such file or directory'` exception in the syslog.

#### How I did it
Change the log severity to the warning and changed the return value.

#### How to verify it
It is really hard to catch the exact moment described in the `Why I did it` section.
In order to check the logic:
1. Change the Unix socket path to non-existing in [/usr/bin/memory_checker](47742dfc2c/files/image_config/monit/memory_checker (L139)) file on the switch.
2. Execute the `root@sonic:/home/admin# monit restart container_memory_telemetry`
3. Check the syslog for such messages:
```
WARNING memory_checker: Failed to retrieve the running container list from docker daemon! Error message is: 'Error while fetching server API version: ('Connection aborte
d.', FileNotFoundError(2, 'No such file or directory'))'

INFO memory_checker: [memory_checker] Exits without checking memory usage since container 'telemetry' is not running!
```
2023-09-03 18:32:43 +08:00
..
Aboot [Arista] Add support for DCS-7060DX5-32 (#14793) (#16176) 2023-09-03 09:21:33 +08:00
apt [Build] set apt Acquire::Retries to 3 for bullseye (#12758) 2022-11-21 08:05:16 +08:00
build/versions [ci/build]: Upgrade SONiC package versions (#15431) 2023-06-12 22:27:29 +08:00
build_scripts During build time mask only those feature/services that are disabled excplicitly (#13283) 2023-01-07 02:36:37 +00:00
build_templates Support FIPS DB configuration (#15632) 2023-09-03 16:33:25 +08:00
dhcp ZTP infrastructure changes to support DHCP discovery provisioning data (#3298) 2019-12-10 08:16:56 -08:00
docker [dockerd] Force usage of cgo DNS resolver (#13649) 2023-02-14 08:57:19 +02:00
image_config [memory_checker] Add a specific log message in a case when the docker service is not running. (#16018) 2023-09-03 18:32:43 +08:00
initramfs-tools [arm64][Nokia-7215-A1]Add support for Nokia-7215-A1 platform (#13795) 2023-05-18 14:24:05 -07:00
scripts Fix CONFIG_DB_INITIALIZED flag check logic and set/reset flag for warmboot (#15685) (#16217) 2023-08-24 16:58:24 +08:00
sshd Remove SSH host keys after installing the custom version of sshd (#10633) 2022-04-25 10:38:52 -07:00