Function get_csm_root_cert_content 

pub fn get_csm_root_cert_content(file_path: &str) -> Result<Vec<u8>, MantaError>

Read the root CA certificate from file_path, falling back to the default config directory if the path is relative.

Errors

• MantaError::NotFound if neither the literal nor the config-directory-relative path resolves to a readable file.
• MantaError::IoError if a candidate file opens but cannot be read to completion.