translator

package
v1.12.0-beta7 Latest Latest
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 Go to latest Published: Apr 27, 2022 License: Apache-2.0 Imports: 31 Imported by: 4

Documentation

Index

Constants

View Source 
const HttpTranslatorName = "http"
View Source 
const HybridTranslatorName = "hybrid"
View Source 
const TcpTranslatorName = "tcp"

Variables

View Source 
var (
	NoActionErr          = errors.New("invalid route: route must specify an action")
	MatcherCountErr      = errors.New("invalid route: routes with delegate actions must omit or specify a single matcher")
	MissingPrefixErr     = errors.New("invalid route: routes with delegate actions must use a prefix matcher")
	InvalidPrefixErr     = errors.New("invalid route: route table matchers must begin with the prefix of their parent route's matcher")
	InvalidPathMatchErr  = errors.New("invalid route: route table matchers must have the same case sensitivity of their parent route's matcher")
	InvalidHeaderErr     = errors.New("invalid route: route table matchers must have all headers that were specified on their parent route's matcher")
	InvalidQueryParamErr = errors.New("invalid route: route table matchers must have all query params that were specified on their parent route's matcher")
	InvalidMethodErr     = errors.New("invalid route: route table matchers must have all methods that were specified on their parent route's matcher")

	UnnamedRoute = func(index int) string {
		return fmt.Sprintf("<unnamed-%d>", index)
	}
	DelegationCycleErr = func(cycleInfo string) error {
		return errors.Errorf("invalid route: delegation cycle detected: %s", cycleInfo)
	}
	InvalidRouteTableForDelegatePrefixWarning = func(delegatePrefix, prefixString string) error {
		return errors.Wrapf(InvalidPrefixErr, "required prefix: %v, prefix: %v", delegatePrefix, prefixString)
	}
	InvalidRouteTableForDelegateHeadersWarning = func(delegateHeaders, childHeaders []*matchersv1.HeaderMatcher) error {
		return errors.Wrapf(InvalidHeaderErr, "required headers: %v, headers: %v", delegateHeaders, childHeaders)
	}
	InvalidRouteTableForDelegateQueryParamsWarning = func(delegateQueryParams, childQueryParams []*matchersv1.QueryParameterMatcher) error {
		return errors.Wrapf(InvalidQueryParamErr, "required query params: %v, query params: %v", delegateQueryParams, childQueryParams)
	}
	InvalidRouteTableForDelegateMethodsWarning = func(delegateMethods, childMethods []string) error {
		return errors.Wrapf(InvalidMethodErr, "required methods: %v, methods: %v", delegateMethods, childMethods)
	}
	TopLevelVirtualResourceErr = func(rtRef *core.Metadata, err error) error {
		return errors.Wrapf(err, "on sub route table %s", rtRef.Ref().Key())
	}

	InvalidRouteTableForDelegateCaseSensitivePathMatchWarning = func(delegateMatchCaseSensitive, matchCaseSensitive *wrappers.BoolValue) error {
		return errors.Wrapf(InvalidPathMatchErr, "required caseSensitive: %v, caseSensitive: %v", delegateMatchCaseSensitive, matchCaseSensitive)
	}
)
View Source 
var (
	SelectorInvalidExpressionWarning = errors.New("the selector expression is invalid")
	SelectorExpressionOperatorValues = map[selectors.Selector_Expression_Operator]selection.Operator{
		selectors.Selector_Expression_Equals:       selection.Equals,
		selectors.Selector_Expression_DoubleEquals: selection.DoubleEquals,
		selectors.Selector_Expression_NotEquals:    selection.NotEquals,
		selectors.Selector_Expression_In:           selection.In,
		selectors.Selector_Expression_NotIn:        selection.NotIn,
		selectors.Selector_Expression_Exists:       selection.Exists,
		selectors.Selector_Expression_DoesNotExist: selection.DoesNotExist,
		selectors.Selector_Expression_GreaterThan:  selection.GreaterThan,
		selectors.Selector_Expression_LessThan:     selection.LessThan,
	}
)
View Source 
var (
	NoVirtualHostErr = func(vs *v1.VirtualService) error {
		return errors.Errorf("virtual service [%s] does not specify a virtual host", vs.GetMetadata().Ref().Key())
	}
	InvalidRegexErr = func(vsRef, regexErr string) error {
		return errors.Errorf("virtual service [%s] has a regex matcher with invalid regex, %s",
			vsRef, regexErr)
	}
	DomainInOtherVirtualServicesErr = func(domain string, conflictingVsRefs []string) error {
		if domain == "" {
			return errors.Errorf("domain conflict: other virtual services that belong to the same Gateway"+
				" as this one don't specify a domain (and thus default to '*'): %v", conflictingVsRefs)
		}
		return errors.Errorf("domain conflict: the [%s] domain is present in other virtual services "+
			"that belong to the same Gateway as this one: %v", domain, conflictingVsRefs)
	}
	GatewayHasConflictingVirtualServicesErr = func(conflictingDomains []string) error {
		var loggedDomains []string
		for _, domain := range conflictingDomains {
			if domain == "" {
				domain = "EMPTY_DOMAIN"
			}
			loggedDomains = append(loggedDomains, domain)
		}
		return errors.Errorf("domain conflict: the following domains are present in more than one of the "+
			"virtual services associated with this gateway: %v", loggedDomains)
	}
	ConflictingMatcherErr = func(vh string, matcher *matchers.Matcher) error {
		return errors.Errorf("virtual host [%s] has conflicting matcher: %v", vh, matcher)
	}
	UnorderedPrefixErr = func(vh, prefix string, matcher *matchers.Matcher) error {
		return errors.Errorf("virtual host [%s] has unordered prefix routes, earlier prefix [%s] short-circuited "+
			"later route [%v]", vh, prefix, matcher)
	}
	UnorderedRegexErr = func(vh, regex string, matcher *matchers.Matcher) error {
		return errors.Errorf("virtual host [%s] has unordered regex routes, earlier regex [%s] short-circuited "+
			"later route [%v]", vh, regex, matcher)
	}

	VirtualServiceSelectorInvalidExpressionWarning = errors.New("the virtual service selector expression is invalid")
	// Map connecting Gloo Virtual Services expression operator values and Kubernetes expression operator string values.
	VirtualServiceExpressionOperatorValues = map[v1.VirtualServiceSelectorExpressions_Expression_Operator]selection.Operator{
		v1.VirtualServiceSelectorExpressions_Expression_Equals:       selection.Equals,
		v1.VirtualServiceSelectorExpressions_Expression_DoubleEquals: selection.DoubleEquals,
		v1.VirtualServiceSelectorExpressions_Expression_NotEquals:    selection.NotEquals,
		v1.VirtualServiceSelectorExpressions_Expression_In:           selection.In,
		v1.VirtualServiceSelectorExpressions_Expression_NotIn:        selection.NotIn,
		v1.VirtualServiceSelectorExpressions_Expression_Exists:       selection.Exists,
		v1.VirtualServiceSelectorExpressions_Expression_DoesNotExist: selection.DoesNotExist,
		v1.VirtualServiceSelectorExpressions_Expression_GreaterThan:  selection.GreaterThan,
		v1.VirtualServiceSelectorExpressions_Expression_LessThan:     selection.LessThan,
	}
)
View Source 
var (
	RouteTableMissingWarning = func(ref core.ResourceRef) error {
		return errors.Errorf("route table %v.%v missing", ref.GetNamespace(), ref.GetName())
	}
	NoMatchingRouteTablesWarning = errors.New("no route table matches the given selector")
	MissingRefAndSelectorWarning = errors.New("cannot determine delegation target: you must specify a route table " +
		"either via a resource reference or a selector")
	RouteTableSelectorExpressionsAndLabelsWarning = errors.New("cannot use both labels and expressions within the " +
		"same selector")
	RouteTableSelectorInvalidExpressionWarning = errors.New("the route table selector expression is invalid")

	// Map connecting Gloo Route Tables expression operator values and Kubernetes expression operator string values.
	RouteTableExpressionOperatorValues = map[gatewayv1.RouteTableSelector_Expression_Operator]selection.Operator{
		gatewayv1.RouteTableSelector_Expression_Equals:       selection.Equals,
		gatewayv1.RouteTableSelector_Expression_DoubleEquals: selection.DoubleEquals,
		gatewayv1.RouteTableSelector_Expression_NotEquals:    selection.NotEquals,
		gatewayv1.RouteTableSelector_Expression_In:           selection.In,
		gatewayv1.RouteTableSelector_Expression_NotIn:        selection.NotIn,
		gatewayv1.RouteTableSelector_Expression_Exists:       selection.Exists,
		gatewayv1.RouteTableSelector_Expression_DoesNotExist: selection.DoesNotExist,
		gatewayv1.RouteTableSelector_Expression_GreaterThan:  selection.GreaterThan,
		gatewayv1.RouteTableSelector_Expression_LessThan:     selection.LessThan,
	}
)
View Source 
var (
	EmptyHybridGatewayMessage = "hybrid gateway does not have any populated matched gateways"
)
View Source 
var MissingGatewayTypeErr = errors.New("invalid gateway: gateway must contain gatewayType")

Functions

func ForEachSource added in v1.0.0 

func ForEachSource(obj ObjectWithMetadata, fn func(source SourceRef) error) error

func HttpGatewayContainsVirtualService added in v1.9.25 

func HttpGatewayContainsVirtualService(httpGateway *v1.HttpGateway, virtualService *v1.VirtualService, ssl bool) (bool, error)

func ListenerName added in v1.0.0 

func ListenerName(gateway *v1.Gateway) string

func NewDefaultTranslator added in v0.19.0 

func NewDefaultTranslator(opts Opts) *translator

func NewHttpGatewaySelector added in v1.9.25 

func NewHttpGatewaySelector(gwList v1.MatchableHttpGatewayList) *gatewaySelector

func NewTranslator added in v0.18.0 

func NewTranslator(listenerTranslators []ListenerTranslator, opts Opts) *translator

func RouteTableLabelsMatchesExpressionRequirements added in v1.5.0 

func RouteTableLabelsMatchesExpressionRequirements(requirements labels.Requirements, rtLabels labels.Set) bool

Asserts that the route table labels matches all of the expression requirements (logical AND).

func RouteTablesForSelector added in v1.3.2 

func RouteTablesForSelector(routeTables gatewayv1.RouteTableList, selector *gatewayv1.RouteTableSelector, ownerNamespace string) (gatewayv1.RouteTableList, error)

Returns the subset of `routeTables` that matches the given `selector`. Search will be restricted to the `ownerNamespace` if the selector does not specify any namespaces.

func VirtualHostName added in v1.0.0 

func VirtualHostName(vs *v1.VirtualService) string

Types

type HttpGatewaySelector added in v1.9.25 

type HttpGatewaySelector interface {
	SelectMatchableHttpGateways(selector *v1.DelegatedHttpGateway, onError func(err error)) v1.MatchableHttpGatewayList
}

type HttpTranslator added in v0.18.0 

type HttpTranslator struct {
	WarnOnRouteShortCircuiting bool
}

func (*HttpTranslator) ComputeHttpListener added in v1.10.8 

func (t *HttpTranslator) ComputeHttpListener(
	params Params,
	parentGateway *v1.Gateway,
	httpGateway *v1.HttpGateway,
	virtualServicesForHttpGateway v1.VirtualServiceList,
	proxyName string,
) *gloov1.HttpListener

func (*HttpTranslator) ComputeListener added in v1.9.25 

func (t *HttpTranslator) ComputeListener(params Params, proxyName string, gateway *v1.Gateway) *gloov1.Listener

func (*HttpTranslator) Name added in v1.10.8 

func (t *HttpTranslator) Name() string

type HybridTranslator added in v1.9.25 

type HybridTranslator struct {
	HttpTranslator *HttpTranslator
	TcpTranslator  *TcpTranslator
}

func (*HybridTranslator) ComputeListener added in v1.9.25 

func (t *HybridTranslator) ComputeListener(params Params, proxyName string, gateway *v1.Gateway) *gloov1.Listener

func (*HybridTranslator) Name added in v1.10.8 

func (t *HybridTranslator) Name() string

type InvalidGatewayTypeTranslator added in v1.9.25 

type InvalidGatewayTypeTranslator struct{}

func (InvalidGatewayTypeTranslator) ComputeListener added in v1.9.25 

func (n InvalidGatewayTypeTranslator) ComputeListener(params Params, proxyName string, gateway *v1.Gateway) *gloov1.Listener

func (InvalidGatewayTypeTranslator) Name added in v1.10.22 

func (n InvalidGatewayTypeTranslator) Name() string

type ListenerTranslator added in v1.9.25 

type ListenerTranslator interface {
	Name() string
	ComputeListener(params Params, proxyName string, gateway *v1.Gateway) *gloov1.Listener
}

type ObjectWithMetadata added in v1.0.0 

type ObjectWithMetadata interface {
	GetMetadata() *structpb.Struct
	GetMetadataStatic() *v1.SourceMetadata
}

type Opts added in v1.0.0 

type Opts struct {
	GlooNamespace                 string
	WriteNamespace                string
	StatusReporterNamespace       string
	WatchNamespaces               []string
	Gateways                      factory.ResourceClientFactory
	MatchableHttpGateways         factory.ResourceClientFactory
	VirtualServices               factory.ResourceClientFactory
	RouteTables                   factory.ResourceClientFactory
	Proxies                       factory.ResourceClientFactory
	RouteOptions                  factory.ResourceClientFactory
	VirtualHostOptions            factory.ResourceClientFactory
	WatchOpts                     clients.WatchOpts
	ValidationServerAddress       string
	DevMode                       bool
	ReadGatewaysFromAllNamespaces bool
	Validation                    *ValidationOpts
	ConfigStatusMetricOpts        map[string]*metrics.Labels
}

type Params added in v1.9.25 

type Params struct {
	// contains filtered or unexported fields
}

func NewTranslatorParams added in v1.9.25 

func NewTranslatorParams(ctx context.Context, snapshot *v1.ApiSnapshot, reports reporter.ResourceReports) Params

type RouteConverter added in v1.2.15 

type RouteConverter interface {
	// Converts a VirtualService to a set of Gloo API routes (i.e. routes on a Proxy resource).
	// Since virtual services and route tables are often owned by different teams, it breaks multitenancy if
	// this function cannot return successfully; thus ALL ERRORS are added to the resource reports
	ConvertVirtualService(virtualService *gatewayv1.VirtualService, gateway *gatewayv1.Gateway, proxyName string, snapshot *gatewayv1.ApiSnapshot, reports reporter.ResourceReports) []*gloov1.Route
}

func NewRouteConverter added in v1.2.15 

func NewRouteConverter(selector RouteTableSelector, indexer RouteTableIndexer) RouteConverter

type RouteTableIndexer added in v1.3.5 

type RouteTableIndexer interface {
	// Indexes the given route tables by weight and returns them as a map.
	// The map key set is also returned as a sorted array so the client can range over the map in the desired order.
	// The error slice contain warning about route tables with duplicated weights.
	IndexByWeight(routeTables v1.RouteTableList) (map[int32]v1.RouteTableList, []int32)
}

func NewRouteTableIndexer added in v1.3.5 

func NewRouteTableIndexer() RouteTableIndexer

type RouteTableSelector added in v1.3.4 

type RouteTableSelector interface {
	SelectRouteTables(action *gatewayv1.DelegateAction, parentNamespace string) (gatewayv1.RouteTableList, error)
}

func NewRouteTableSelector added in v1.3.4 

func NewRouteTableSelector(allRouteTables gatewayv1.RouteTableList) RouteTableSelector

type SourceMetadata added in v1.0.0 

type SourceMetadata struct {
	Sources []SourceRef `json:"sources"`
}

func GetSourceMeta added in v1.0.0 

func GetSourceMeta(obj ObjectWithMetadata) (*SourceMetadata, error)

type SourceRef added in v0.18.41 

type SourceRef struct {
	*core.ResourceRef
	ResourceKind       string `json:"kind"`
	ObservedGeneration int64  `json:"observedGeneration"`
}

type TcpTranslator added in v0.18.0 

type TcpTranslator struct{}

func (*TcpTranslator) ComputeListener added in v1.9.25 

func (t *TcpTranslator) ComputeListener(params Params, proxyName string, gateway *v1.Gateway) *gloov1.Listener

func (*TcpTranslator) ComputeTcpListener added in v1.9.25 

func (t *TcpTranslator) ComputeTcpListener(tcpGateway *v1.TcpGateway) *gloov1.TcpListener

func (*TcpTranslator) Name added in v1.10.8 

func (t *TcpTranslator) Name() string

type Translator added in v0.18.0 

type Translator interface {
	Translate(ctx context.Context, proxyName, namespace string, snap *v1.ApiSnapshot, filteredGateways v1.GatewayList) (*gloov1.Proxy, reporter.ResourceReports)
}

type ValidationOpts added in v1.0.0 

type ValidationOpts struct {
	ProxyValidationServerAddress string
	ValidatingWebhookPort        int
	ValidatingWebhookCertPath    string
	ValidatingWebhookKeyPath     string
	IgnoreProxyValidationFailure bool
	AlwaysAcceptResources        bool
	AllowWarnings                bool
	WarnOnRouteShortCircuiting   bool
}

Source Files

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Directories

Path Synopsis
Package mocks is a generated GoMock package.
 Package mocks is a generated GoMock package.

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