When we run the test, for example,
./tests/registration/registration simple-init,
wee get an INFO message like the one below.
```
05/17 14:24:03.933: [sbi] INFO: NF EndPoint(addr) setup [127.0.0.200:7777] (../lib/sbi/context.c:474)
```
When we run the code in Open5GS, the log level initially defaults to INFO.
However, for test code, we change the log level to ERROR
by automatically inserting the -e error option into argv.
The reason for this is to prevent WARNING and INFO messages
from appearing when the test code is run.
However, the log level to ERROR is changed at the bottom of
the initialize routine, which caused the above message
to be printed during testing.
To prevent this from being printed, I modified the code
to change that log level to ERROR a little earlier.
Other NF instances are obtained through NRF
or created directly through configuration files.
Other NFs created by the config file should not be passed
through NRF discovery or anything like that.
Since self-created NF Instances do not have an ID,
they are implemented to exclude them from NRF Discovery.
Even if the configured log level for the application was set to "error",
the first "info" message of the metrics library was output to the log.
Reorder the initialization of the metrics library.
Without this change, using metrics with core setup configurations
(configs/vonr.yaml for example) would not be possible. Having one
metrics section for whole config file causes every NF to start metrics
server on same port causing an abort.
- Set the number of UEs in units of AMF/MME instead of gNB/eNB.
- See default value as shown below
Number of UEs per AMF/MME : 4,096
Number of gNB/eNB per AMF/MME : 32
Sukchan Lee
Bostjan Meglic
Carlos Giraldo