certificate

func FetchPEM ¶

func FetchPEM(hostname string) ([]byte, error)

FetchPEM retrieves the certificate chain presented by the server listening at hostname in PEM format.

Adapted from https://stackoverflow.com/a/46735876/491710

func LoadPEM ¶

func LoadPEM(path string) (*x509.CertPool, error)

LoadPEM loads certificates from a PEM file and returns a cert pool containing the certificates.

func ValidateConnection ¶

func ValidateConnection(pool *x509.CertPool, fleetURL string) error

ValidateConnection checks that a connection can be successfully established to the server URL using the cert pool provided. The validation performed is not sufficient to verify authenticity of the server, but it can help to catch certificate errors and provide more detailed messages to users.