server

Documentation

Overview

Package server provides functionality so that other uses of sansshell can provide their own main.go without having to cargo-cult everything across for common use cases. i.e. simply adding your own authz hooks but using the standard modules. Or adding additional modules that are locally defined.

Index

• func Run(ctx context.Context, opts ...Option)
• type Option
  • func WithAuthzHook(hook rpcauth.RPCAuthzHook) Option
  • func WithClientPolicy(policy string) Option
  • func WithCredSource(credSource string) Option
  • func WithDebugPort(addr string) Option
  • func WithHostPort(hostport string) Option
  • func WithJustification(j bool) Option
  • func WithJustificationHook(hook func(string) error) Option
  • func WithLogger(l logr.Logger) Option
  • func WithPolicy(policy string) Option
  • func WithRawServerOption(s func(*grpc.Server)) Option
  • func WithStreamClientInterceptor(i grpc.StreamClientInterceptor) Option
  • func WithStreamInterceptor(i grpc.StreamServerInterceptor) Option
  • func WithTlsConfig(tlsConfig *tls.Config) Option
  • func WithUnaryClientInterceptor(i grpc.UnaryClientInterceptor) Option
  • func WithUnaryInterceptor(i grpc.UnaryServerInterceptor) Option

Functions

func Run

func Run(ctx context.Context, opts ...Option)

Run takes the given context and RunState along with any authz hooks and starts up a sansshell proxy server using the flags above to provide credentials. An address hook (based on the remote host) with always be added. As this is intended to be called from main() it doesn't return errors and will instead exit on any errors.

Types

type Option

type Option interface {
	// contains filtered or unexported methods
}

func WithAuthzHook

func WithAuthzHook(hook rpcauth.RPCAuthzHook) Option

WithAuthzHook adds an additional authz hook to be applied to the server.

func WithClientPolicy

func WithClientPolicy(policy string) Option

WithClientPolicy appplies an optional OPA policy for determining outbound decisions.

func WithCredSource

func WithCredSource(credSource string) Option

WithCredSource applies a registered credential source with the mtls package.

func WithDebugPort

func WithDebugPort(addr string) Option

WithDebugPort opens an additional port for a http debug page.

This is meant for humans. The format of the debug pages may change over time.

func WithHostPort

func WithHostPort(hostport string) Option

WithHostport applies the host:port to run the server.

func WithJustification

func WithJustification(j bool) Option

WithJustification applies the justification param. Justification if true requires justification to be set in the incoming RPC context Metadata (to the key defined in the telemetry package).

func WithJustificationHook

func WithJustificationHook(hook func(string) error) Option

WithJustificationFunc applies a justification function. This function will be called if Justication is true and a justification entry is found. The supplied function can then do any validation it wants in order to ensure it's compliant.

func WithLogger

func WithLogger(l logr.Logger) Option

WithLogger applies a logger that is used for all logging. A discard based one is used if none is supplied.

func WithPolicy

func WithPolicy(policy string) Option

WithPolicy applies an OPA policy used against incoming RPC requests.

func WithRawServerOption

func WithRawServerOption(s func(*grpc.Server)) Option

WithRawServerOption allows one access to the RPC Server object. Generally this is done to add additional registration functions for RPC services to be done before starting the server.

func WithStreamClientInterceptor

func WithStreamClientInterceptor(i grpc.StreamClientInterceptor) Option

WithStreamClientInterceptor adds an additional stream client interceptor. These become any additional interceptors to be added to outbound streaming RPCs performed from this instance. They will be added after logging and authz checks.

func WithStreamInterceptor

func WithStreamInterceptor(i grpc.StreamServerInterceptor) Option

WithStreamInterceptor adds an additional stream server interceptor. These become any additional interceptors to be added to streaming RPCs served from this instance. They will be added after logging and authz checks.

func WithTlsConfig

func WithTlsConfig(tlsConfig *tls.Config) Option

WithTlsConfig applies a supplied tls.Config object to the gRPC server.

func WithUnaryClientInterceptor

func WithUnaryClientInterceptor(i grpc.UnaryClientInterceptor) Option

WithUnaryClientInterceptor adds an additional unary client interceptor. These become any additional interceptors to be added to outbound unary RPCs performed from this instance. They will be added after logging and authz checks.

func WithUnaryInterceptor

func WithUnaryInterceptor(i grpc.UnaryServerInterceptor) Option

WithUnaryInterceptor adds an additional unary server interceptor. These become any additional interceptors to be added to unary RPCs served from this instance. They will be added after logging and authz checks.