plugins

package
v1.11.0-beta4 Latest Latest
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 Go to latest Published: Jan 18, 2022 License: Apache-2.0 Imports: 12 Imported by: 49

Documentation

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func FilterStageComparison added in v0.18.27 

func FilterStageComparison(a, b FilterStage) int

FilterStageComparison helps implement the sort.Interface Less function for use in other implementations of sort.Interface returns -1 if less than, 0 if equal, 1 if greater than It is not sufficient to return a Less bool because calling functions need to know if equal or greater when Less is false

func StagedFilterListContainsName added in v1.8.0 

func StagedFilterListContainsName(filters StagedHttpFilterList, filterName string) bool

Types

type EndpointPlugin added in v1.4.0 

type EndpointPlugin interface {
	Plugin
	ProcessEndpoints(params Params, in *v1.Upstream, out *envoy_config_endpoint_v3.ClusterLoadAssignment) error
}

Endpoint is called after the envoy ClusterLoadAssignment has been created for the input Upstream, and allows the endpoints to be edited before being sent to envoy via EDS If one wishes to also modify the corresponding envoy Cluster the above UpstreamPlugin interface should be used.

type FilterStage 

type FilterStage struct {
	RelativeTo WellKnownFilterStage
	Weight     int
}

func AfterStage added in v0.18.27 

func AfterStage(wellKnown WellKnownFilterStage) FilterStage

func BeforeStage added in v0.18.27 

func BeforeStage(wellKnown WellKnownFilterStage) FilterStage

func DuringStage added in v0.18.27 

func DuringStage(wellKnown WellKnownFilterStage) FilterStage

func RelativeToStage added in v0.18.27 

func RelativeToStage(wellKnown WellKnownFilterStage, weight int) FilterStage

type HttpConnectionManagerPlugin added in v1.9.25 

type HttpConnectionManagerPlugin interface {
	Plugin
	ProcessHcmNetworkFilter(params Params, parentListener *v1.Listener, listener *v1.HttpListener, out *envoyhttp.HttpConnectionManager) error
}

HttpConnectionManager Plugins

type HttpFilterPlugin 

type HttpFilterPlugin interface {
	Plugin
	HttpFilters(params Params, listener *v1.HttpListener) ([]StagedHttpFilter, error)
}

type InitParams 

type InitParams struct {
	Ctx      context.Context
	Settings *v1.Settings
}

type ListenerPlugin 

type ListenerPlugin interface {
	Plugin
	ProcessListener(params Params, in *v1.Listener, out *envoy_config_listener_v3.Listener) error
}

type Params 

type Params struct {
	Ctx      context.Context
	Snapshot *v1.ApiSnapshot
}

type Plugin 

type Plugin interface {
	Init(params InitParams) error
}

type PluginRegistry added in v1.9.25 

type PluginRegistry interface {
	GetPlugins() []Plugin
	GetListenerPlugins() []ListenerPlugin
	GetTcpFilterChainPlugins() []TcpFilterChainPlugin
	GetHttpFilterPlugins() []HttpFilterPlugin
	GetHttpConnectionManagerPlugins() []HttpConnectionManagerPlugin
	GetVirtualHostPlugins() []VirtualHostPlugin
	GetResourceGeneratorPlugins() []ResourceGeneratorPlugin
	GetUpstreamPlugins() []UpstreamPlugin
	GetEndpointPlugins() []EndpointPlugin
	GetRoutePlugins() []RoutePlugin
	GetRouteActionPlugins() []RouteActionPlugin
	GetWeightedDestinationPlugins() []WeightedDestinationPlugin
}

A PluginRegistry is used to provide Plugins to relevant translators Historically, all plugins were passed around as an argument, and each translator would iterate over all plugins, and only apply the relevant ones. This interface enables translators to only know of the relevant plugins

type ResourceGeneratorPlugin added in v1.6.10 

type ResourceGeneratorPlugin interface {
	Plugin
	GeneratedResources(params Params,
		inClusters []*envoy_config_cluster_v3.Cluster,
		inEndpoints []*envoy_config_endpoint_v3.ClusterLoadAssignment,
		inRouteConfigurations []*envoy_config_route_v3.RouteConfiguration,
		inListeners []*envoy_config_listener_v3.Listener,
	) ([]*envoy_config_cluster_v3.Cluster, []*envoy_config_endpoint_v3.ClusterLoadAssignment, []*envoy_config_route_v3.RouteConfiguration, []*envoy_config_listener_v3.Listener, error)
}

Generation plugins

type RouteActionParams added in v0.18.32 

type RouteActionParams struct {
	RouteParams
	Route *v1.Route
}

type RouteActionPlugin 

type RouteActionPlugin interface {
	Plugin
	ProcessRouteAction(params RouteActionParams, inAction *v1.RouteAction, out *envoy_config_route_v3.RouteAction) error
}

note: any route action plugin can be implemented as a route plugin suggestion: if your plugin requires configuration from a RoutePlugin field, implement the RoutePlugin interface

type RouteParams added in v0.14.0 

type RouteParams struct {
	VirtualHostParams
	VirtualHost *v1.VirtualHost
}

type RoutePlugin 

type RoutePlugin interface {
	Plugin
	ProcessRoute(params RouteParams, in *v1.Route, out *envoy_config_route_v3.Route) error
}

type StagedHttpFilter 

type StagedHttpFilter struct {
	HttpFilter *envoyhttp.HttpFilter
	Stage      FilterStage
}

func NewStagedFilter added in v0.11.1 

func NewStagedFilter(name string, stage FilterStage) StagedHttpFilter

func NewStagedFilterWithConfig added in v0.11.1 

func NewStagedFilterWithConfig(name string, config proto.Message, stage FilterStage) (StagedHttpFilter, error)

type StagedHttpFilterList added in v0.18.27 

type StagedHttpFilterList []StagedHttpFilter

func (StagedHttpFilterList) Len added in v0.18.27 

func (s StagedHttpFilterList) Len() int

func (StagedHttpFilterList) Less added in v0.18.27 

func (s StagedHttpFilterList) Less(i, j int) bool

filters by Relative Stage, Weighting, Name, Config Type-Url, Config Value, and (to ensure stability) index. The assumption is that if two filters are in the same stage, their order doesn't matter, and we just need to make sure it is stable.

func (StagedHttpFilterList) Swap added in v0.18.27 

func (s StagedHttpFilterList) Swap(i, j int)

type StagedNetworkFilter added in v1.9.25 

type StagedNetworkFilter struct {
	NetworkFilter *envoy_config_listener_v3.Filter
	Stage         FilterStage
}

type StagedNetworkFilterList added in v1.9.25 

type StagedNetworkFilterList []StagedNetworkFilter

func (StagedNetworkFilterList) Len added in v1.9.25 

func (s StagedNetworkFilterList) Len() int

func (StagedNetworkFilterList) Less added in v1.9.25 

func (s StagedNetworkFilterList) Less(i, j int) bool

filters by Relative Stage, Weighting, Name, and (to ensure stability) index

func (StagedNetworkFilterList) Swap added in v1.9.25 

func (s StagedNetworkFilterList) Swap(i, j int)

type TcpFilterChainPlugin added in v1.9.25 

type TcpFilterChainPlugin interface {
	Plugin
	CreateTcpFilterChains(params Params, parentListener *v1.Listener, in *v1.TcpListener) ([]*envoy_config_listener_v3.FilterChain, error)
}

type Upgradable added in v1.6.0 

type Upgradable interface {
	PluginName() string
	IsUpgrade() bool
}

Upgradable plugins are those which can be replaced by another version with enhanced functionality. Identified by PluginName().

type UpstreamPlugin 

type UpstreamPlugin interface {
	Plugin
	ProcessUpstream(params Params, in *v1.Upstream, out *envoy_config_cluster_v3.Cluster) error
}

UpstreamPlugin is called after the envoy Cluster has been created for the input Upstream, and allows the cluster to be edited before being sent to envoy via CDS

type VirtualHostParams added in v0.15.0 

type VirtualHostParams struct {
	Params
	Proxy        *v1.Proxy
	Listener     *v1.Listener
	HttpListener *v1.HttpListener
}

type VirtualHostPlugin 

type VirtualHostPlugin interface {
	Plugin
	ProcessVirtualHost(params VirtualHostParams, in *v1.VirtualHost, out *envoy_config_route_v3.VirtualHost) error
}

type WeightedDestinationPlugin added in v0.18.7 

type WeightedDestinationPlugin interface {
	Plugin
	ProcessWeightedDestination(
		params RouteParams,
		in *v1.WeightedDestination,
		out *envoy_config_route_v3.WeightedCluster_ClusterWeight,
	) error
}

type WellKnownFilterStage added in v0.18.27 

type WellKnownFilterStage int

WellKnownFilterStages are represented by an integer that reflects their relative ordering 

const (
	FaultStage     WellKnownFilterStage = iota // Fault injection // First Filter Stage
	CorsStage                                  // Cors stage
	WafStage                                   // Web application firewall stage
	AuthNStage                                 // Authentication stage
	AuthZStage                                 // Authorization stage
	RateLimitStage                             // Rate limiting stage
	AcceptedStage                              // Request passed all the checks and will be forwarded upstream
	OutAuthStage                               // Add auth for the upstream (i.e. aws λ)
	RouteStage                                 // Request is going to upstream // Last Filter Stage
)

If new well known filter stages are added, they should be inserted in a position corresponding to their order

Source Files

View all Source files

Directories

Path Synopsis
aws
ec2
ec2/util
mocks
Package mock_consul is a generated GoMock package.
 Package mock_consul is a generated GoMock package.
internal
common
mocks
Package mock_kubernetes is a generated GoMock package.
 Package mock_kubernetes is a generated GoMock package.
serviceconverter
transformation
upgradeconfig
mocks
Package mock_cache is a generated GoMock package.
 Package mock_cache is a generated GoMock package.

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