v1alpha3

Documentation

Index

• Constants
• Variables
• func GetDefaultCircuitBreakerThresholds(direction model.TrafficDirection) *v2Cluster.CircuitBreakers_Thresholds
• func SelectTrafficPolicyComponents(policy *networking.TrafficPolicy, port *model.Port) (*networking.ConnectionPoolSettings, *networking.OutlierDetection, ...)
• type ClusterMode
• type ConfigGeneratorImpl
  • func NewConfigGenerator(plugins []plugin.Plugin) *ConfigGeneratorImpl
  • func (configgen *ConfigGeneratorImpl) BuildClusters(env *model.Environment, proxy *model.Proxy, push *model.PushContext) ([]*apiv2.Cluster, error)
  • func (configgen *ConfigGeneratorImpl) BuildHTTPRoutes(env *model.Environment, node *model.Proxy, push *model.PushContext, ...) (*xdsapi.RouteConfiguration, error)
  • func (configgen *ConfigGeneratorImpl) BuildListeners(env *model.Environment, node *model.Proxy, push *model.PushContext) ([]*xdsapi.Listener, error)
  • func (configgen *ConfigGeneratorImpl) BuildSharedPushState(env *model.Environment, push *model.PushContext) error
  • func (configgen *ConfigGeneratorImpl) CanUsePrecomputedCDS(proxy *model.Proxy) bool

Constants

const (
	// DefaultLbType set to round robin
	DefaultLbType = networking.LoadBalancerSettings_ROUND_ROBIN

	// ManagementClusterHostname indicates the hostname used for building inbound clusters for management ports
	ManagementClusterHostname = "mgmtCluster"
)

const (

	// RDSHttpProxy is the special name for HTTP PROXY route
	RDSHttpProxy = "http_proxy"

	// VirtualListenerName is the name for traffic capture listener
	VirtualListenerName = "virtual"

	// WildcardAddress binds to all IP addresses
	WildcardAddress = "0.0.0.0"

	// LocalhostAddress for local binding
	LocalhostAddress = "127.0.0.1"

	// EnvoyTextLogFormat format for envoy text based access logs
	EnvoyTextLogFormat = "[%START_TIME%] \"%REQ(:METHOD)% %REQ(X-ENVOY-ORIGINAL-PATH?:PATH)% " +
		"%PROTOCOL%\" %RESPONSE_CODE% %RESPONSE_FLAGS% \"%DYNAMIC_METADATA(istio.mixer:status)%\" %BYTES_RECEIVED% %BYTES_SENT% " +
		"%DURATION% %RESP(X-ENVOY-UPSTREAM-SERVICE-TIME)% \"%REQ(X-FORWARDED-FOR)%\" " +
		"\"%REQ(USER-AGENT)%\" \"%REQ(X-REQUEST-ID)%\" \"%REQ(:AUTHORITY)%\" \"%UPSTREAM_HOST%\" " +
		"%UPSTREAM_CLUSTER% %UPSTREAM_LOCAL_ADDRESS% %DOWNSTREAM_LOCAL_ADDRESS% " +
		"%DOWNSTREAM_REMOTE_ADDRESS% %REQUESTED_SERVER_NAME%\n"

	// EnvoyServerName for istio's envoy
	EnvoyServerName = "istio-envoy"
)

Variables

var (
	// EnvoyJSONLogFormat map of values for envoy json based access logs
	EnvoyJSONLogFormat = &google_protobuf.Struct{
		Fields: map[string]*google_protobuf.Value{
			"start_time":                &google_protobuf.Value{Kind: &google_protobuf.Value_StringValue{StringValue: "%START_TIME%"}},
			"method":                    &google_protobuf.Value{Kind: &google_protobuf.Value_StringValue{StringValue: "%START_TIME%"}},
			"path":                      &google_protobuf.Value{Kind: &google_protobuf.Value_StringValue{StringValue: "%REQ(X-ENVOY-ORIGINAL-PATH?:PATH)%"}},
			"protocol":                  &google_protobuf.Value{Kind: &google_protobuf.Value_StringValue{StringValue: "%PROTOCOL%"}},
			"response_code":             &google_protobuf.Value{Kind: &google_protobuf.Value_StringValue{StringValue: "%RESPONSE_CODE%"}},
			"response_flags":            &google_protobuf.Value{Kind: &google_protobuf.Value_StringValue{StringValue: "%RESPONSE_FLAGS%"}},
			"bytes_received":            &google_protobuf.Value{Kind: &google_protobuf.Value_StringValue{StringValue: "%BYTES_RECEIVED%"}},
			"bytes_sent":                &google_protobuf.Value{Kind: &google_protobuf.Value_StringValue{StringValue: "%BYTES_SENT%"}},
			"duration":                  &google_protobuf.Value{Kind: &google_protobuf.Value_StringValue{StringValue: "%DURATION%"}},
			"upstream_service_time":     &google_protobuf.Value{Kind: &google_protobuf.Value_StringValue{StringValue: "%RESP(X-ENVOY-UPSTREAM-SERVICE-TIME)%"}},
			"x_forwarded_for":           &google_protobuf.Value{Kind: &google_protobuf.Value_StringValue{StringValue: "%REQ(X-FORWARDED-FOR)%"}},
			"user_agent":                &google_protobuf.Value{Kind: &google_protobuf.Value_StringValue{StringValue: "%REQ(USER-AGENT)%"}},
			"request_id":                &google_protobuf.Value{Kind: &google_protobuf.Value_StringValue{StringValue: "%REQ(X-REQUEST-ID)%"}},
			"authority":                 &google_protobuf.Value{Kind: &google_protobuf.Value_StringValue{StringValue: "%REQ(:AUTHORITY)%"}},
			"upstream_host":             &google_protobuf.Value{Kind: &google_protobuf.Value_StringValue{StringValue: "%UPSTREAM_HOST%"}},
			"upstream_cluster":          &google_protobuf.Value{Kind: &google_protobuf.Value_StringValue{StringValue: "%UPSTREAM_CLUSTER%"}},
			"upstream_local_address":    &google_protobuf.Value{Kind: &google_protobuf.Value_StringValue{StringValue: "%UPSTREAM_LOCAL_ADDRESS%"}},
			"downstream_local_address":  &google_protobuf.Value{Kind: &google_protobuf.Value_StringValue{StringValue: "%DOWNSTREAM_LOCAL_ADDRESS%"}},
			"downstream_remote_address": &google_protobuf.Value{Kind: &google_protobuf.Value_StringValue{StringValue: "%DOWNSTREAM_REMOTE_ADDRESS%"}},
			"requested_server_name":     &google_protobuf.Value{Kind: &google_protobuf.Value_StringValue{StringValue: "%REQUESTED_SERVER_NAME%"}},
			"istio_policy_status":       &google_protobuf.Value{Kind: &google_protobuf.Value_StringValue{StringValue: "%DYNAMIC_METADATA(istio.mixer:status)%"}},
		},
	}
)

var ListenersALPNProtocols = []string{"h2", "http/1.1"}

ListenersALPNProtocols denotes the the list of ALPN protocols that the listener should expose

Functions

func GetDefaultCircuitBreakerThresholds

func GetDefaultCircuitBreakerThresholds(direction model.TrafficDirection) *v2Cluster.CircuitBreakers_Thresholds

GetDefaultCircuitBreakerThresholds returns a copy of the default circuit breaker thresholds for the given traffic direction.

func SelectTrafficPolicyComponents

func SelectTrafficPolicyComponents(policy *networking.TrafficPolicy, port *model.Port) (
	*networking.ConnectionPoolSettings, *networking.OutlierDetection, *networking.LoadBalancerSettings, *networking.TLSSettings)

SelectTrafficPolicyComponents returns the components of TrafficPolicy that should be used for given port.

Types

type ClusterMode

type ClusterMode string

ClusterMode defines whether the cluster is being built for SNI-DNATing (sni passthrough) or not

const (
	// SniDnatClusterMode indicates cluster is being built for SNI dnat mode
	SniDnatClusterMode ClusterMode = "sni-dnat"
	// DefaultClusterMode indicates usual cluster with mTLS et al
	DefaultClusterMode ClusterMode = "outbound"
)

type ConfigGeneratorImpl

type ConfigGeneratorImpl struct {
	// List of plugins that modify code generated by this config generator
	Plugins []plugin.Plugin

	// List of outbound clusters keyed by configNamespace & locality. For use by gateways only.
	// Must be rebuilt for each push epoch
	PrecomputedOutboundClustersForGateways map[string]map[string][]*xdsapi.Cluster
	// contains filtered or unexported fields
}

func NewConfigGenerator

func NewConfigGenerator(plugins []plugin.Plugin) *ConfigGeneratorImpl

func (*ConfigGeneratorImpl) BuildClusters

func (configgen *ConfigGeneratorImpl) BuildClusters(env *model.Environment, proxy *model.Proxy, push *model.PushContext) ([]*apiv2.Cluster, error)

BuildClusters returns the list of clusters for the given proxy. This is the CDS output For outbound: Cluster for each service/subset hostname or cidr with SNI set to service hostname Cluster type based on resolution For inbound (sidecar only): Cluster for each inbound endpoint port and for each service port

func (*ConfigGeneratorImpl) BuildHTTPRoutes

func (configgen *ConfigGeneratorImpl) BuildHTTPRoutes(env *model.Environment, node *model.Proxy, push *model.PushContext,
	routeName string) (*xdsapi.RouteConfiguration, error)

BuildHTTPRoutes produces a list of routes for the proxy

func (*ConfigGeneratorImpl) BuildListeners

func (configgen *ConfigGeneratorImpl) BuildListeners(env *model.Environment, node *model.Proxy, push *model.PushContext) ([]*xdsapi.Listener, error)

BuildListeners produces a list of listeners and referenced clusters for all proxies

func (*ConfigGeneratorImpl) BuildSharedPushState

func (configgen *ConfigGeneratorImpl) BuildSharedPushState(env *model.Environment, push *model.PushContext) error

func (*ConfigGeneratorImpl) CanUsePrecomputedCDS

func (configgen *ConfigGeneratorImpl) CanUsePrecomputedCDS(proxy *model.Proxy) bool