CheckErr is used to cmd err.

InitCmd initializes the logger, the default context and returns its cancel function.

InitSignalHandling initializes signal handling.

JSONPrint will output the data in JSON format.

LogHTTPProxies logs HTTP proxy relative environment variables.

StrictDecodeFile decodes the toml file strictly.

VerifyPdEndpoint verifies whether the pd endpoint is a valid http or https URL.

Endpoint schemes.

Endpoint schemes.