Unable to override log level switch initial log level via environment variables

[frolyo]

Since we deploy our services in k8s we need to override level switch initial log level via environment variable. At the same time levelSwitchName must start with $ sign which is not allowed for env variable name.

How can initialLevel can be overriden?

Example:

1. app config:

  "Serilog": {
    "levelSwitches": {
      "$logLevelSwitch": "Debug"
    },
    "MinimumLevel": {
      "controlledBy": "$logLevelSwitch"
...

2. override:

env:
  name: serilog_levelSwitches_$logLevelSwitch
  value: Debug

Error:
"Invalid value: "serilog__levelSwitches__$logLevelSwitch": a valid environment variable name must consist of alphabetic characters, digits, '_', '-', or '.', and must not start with a digit"