Usage:
  -addr string
    	(required) tcp host:port to connect
  -alts
    	use ALTS (default: false, INSECURE plaintext transport)
  -connect-timeout duration
    	timeout for establishing connection (default 1s)
  -gzip
    	use GZIPCompressor for requests and GZIPDecompressor for response (default: false)
  -rpc-header value
    	additional RPC headers in 'name: value' format. May specify more than one via multiple flags.
  -rpc-timeout duration
    	timeout for health check rpc (default 1s)
  -service string
    	service name to check (default: "")
  -spiffe
    	use SPIFFE to obtain mTLS credentials
  -tls
    	use TLS (default: false, INSECURE plaintext transport)
  -tls-ca-cert string
    	(with -tls, optional) file containing trusted certificates for verifying server
  -tls-client-cert string
    	(with -tls, optional) client certificate for authenticating to the server (requires -tls-client-key)
  -tls-client-key string
    	(with -tls) client private key for authenticating to the server (requires -tls-client-cert)
  -tls-no-verify
    	(with -tls) don't verify the certificate (INSECURE) presented by the server (default: false)
  -tls-server-name string
    	(with -tls) override the hostname used to verify the server certificate
  -user-agent string
    	user-agent header value of health check requests (default "grpc_health_probe")
  -v	verbose logs
  -version
    	show probe version and exit