OptionalMirrorsList of mirrors, expressed as URIs.
OptionalNameName of the registry, such as "docker.io".
OptionalOfficialIndicates whether this is an official registry (i.e., Docker Hub / docker.io)
OptionalSecureIndicates if the registry is part of the list of insecure registries. If false, the registry is insecure. Insecure registries accept un-encrypted (HTTP) and/or untrusted (HTTPS with certificates from unknown CAs) communication. > Warning: Insecure registries can be useful when running a local > registry. However, because its use creates security vulnerabilities > it should ONLY be enabled for testing purposes. For increased > security, users should add their CA to their system's list of > trusted CAs instead of enabling this option.
IndexInfo contains information about a registry. IndexInfo