gloo.go

package services

import (
	"context"
	"fmt"

	v1alpha1 "github.com/solo-io/gloo/projects/gloo/pkg/api/external/solo/ratelimit"
	extauthv1 "github.com/solo-io/gloo/projects/gloo/pkg/api/v1/enterprise/options/extauth/v1"
	graphqlv1beta1 "github.com/solo-io/gloo/projects/gloo/pkg/api/v1/enterprise/options/graphql/v1beta1"

	"net"
	"net/http"
	"reflect"
	"time"

	"github.com/hashicorp/consul/api"

	"github.com/solo-io/gloo/test/ginkgo/parallel"

	"github.com/golang/protobuf/proto"

	"github.com/golang/protobuf/ptypes/duration"
	"github.com/solo-io/solo-kit/pkg/api/v1/resources/core"

	"github.com/imdario/mergo"

	"github.com/golang/protobuf/ptypes/wrappers"

	"github.com/solo-io/gloo/pkg/bootstrap/leaderelector/singlereplica"

	"github.com/solo-io/gloo/projects/gloo/pkg/api/v1/gloosnapshot"

	"github.com/solo-io/gloo/pkg/utils/settingsutil"

	"github.com/solo-io/gloo/pkg/utils/statusutils"

	"github.com/solo-io/gloo/projects/gloo/pkg/syncer/setup"

	"github.com/solo-io/gloo/projects/gateway/pkg/translator"

	"github.com/solo-io/gloo/projects/gloo/pkg/upstreams/consul"

	"github.com/solo-io/solo-kit/pkg/api/external/kubernetes/service"
	"github.com/solo-io/solo-kit/pkg/api/v1/clients/kube/cache"

	skkube "github.com/solo-io/solo-kit/pkg/api/v1/resources/common/kubernetes"

	corecache "github.com/solo-io/solo-kit/pkg/api/v1/clients/kube/cache"

	"github.com/solo-io/go-utils/contextutils"
	"github.com/solo-io/solo-kit/pkg/api/v1/clients"
	"github.com/solo-io/solo-kit/pkg/api/v1/clients/factory"
	"github.com/solo-io/solo-kit/pkg/api/v1/clients/memory"

	gatewayv1 "github.com/solo-io/gloo/projects/gateway/pkg/api/v1"
	gloov1 "github.com/solo-io/gloo/projects/gloo/pkg/api/v1"
	"github.com/solo-io/gloo/projects/gloo/pkg/bootstrap"
	bootstrap_clients "github.com/solo-io/gloo/projects/gloo/pkg/bootstrap/clients"
	"google.golang.org/grpc"

	grpc_zap "github.com/grpc-ecosystem/go-grpc-middleware/logging/zap"
	"go.uber.org/zap"

	grpc_middleware "github.com/grpc-ecosystem/go-grpc-middleware"
	grpc_ctxtags "github.com/grpc-ecosystem/go-grpc-middleware/tags"

	. "github.com/onsi/ginkgo/v2"
	. "github.com/onsi/gomega"
	fds_syncer "github.com/solo-io/gloo/projects/discovery/pkg/fds/syncer"
	uds_syncer "github.com/solo-io/gloo/projects/discovery/pkg/uds/syncer"
	"github.com/solo-io/gloo/projects/gloo/pkg/defaults"
	"k8s.io/client-go/kubernetes"
)

var glooPortBase = uint32(30400)

const (
	GlooServiceName = "gloo"
	FdsServiceName  = "fds"
	UdsServiceName  = "uds"
)

func AllocateGlooPort() int32 {
	return int32(parallel.AdvancePortSafeListen(&glooPortBase))
}

// RunOptions are options for running an in-memory e2e test
type RunOptions struct {
	NsToWrite string
	NsToWatch []string
	WhatToRun What
	Settings  *gloov1.Settings

	// ExtensionsBuilders are injection points for Enterprise functionality
	ExtensionsBuilders ExtensionsBuilders

	// ports are not intended to be set by developers
	// This is just a convenient way to pass the ports from the test to the setup functions
	ports Ports

	// Deprecated: do not write tests that require a Kubernetes client
	// This is an artifact of legacy tests which interacted with Kubernetes directly
	// If you need a KubeClient, you should be introducing a test in the `test/kube2e` package
	KubeClient kubernetes.Interface
}

type What struct {
	DisableGateway bool
	DisableUds     bool
	DisableFds     bool
}

type Ports struct {
	Gloo       int32
	Validation int32
	RestXds    int32
}

type ExtensionsBuilders struct {
	Gloo func(ctx context.Context, opts bootstrap.Opts) setup.Extensions
	Fds  func(ctx context.Context, opts bootstrap.Opts) fds_syncer.Extensions
}

// RunGlooGatewayUdsFds runs the Gloo Edge control plane components in goroutines and stores
// configuration in-memory. This is used by the e2e tests in `test/e2e` package.
func RunGlooGatewayUdsFds(ctx context.Context, runOptions *RunOptions) TestClients {
	runOptions.ports = Ports{
		Gloo:       AllocateGlooPort(),
		Validation: AllocateGlooPort(),
		RestXds:    AllocateGlooPort(),
	}

	settings := constructTestSettings(runOptions)
	ctx = settingsutil.WithSettings(ctx, settings)

	// All Gloo Edge components run using a Bootstrap.Opts object
	// These values are extracted from the Settings object and as part of our SetupSyncer
	// we pull values off the Settings object to build the Bootstrap.Opts. It would be ideal if we
	// could use the same setup code, but in the meantime, we use constructTestOpts to mirror the functionality
	bootstrapOpts := constructTestOpts(ctx, runOptions, settings)

	go func(bootstrapOpts bootstrap.Opts) {
		defer GinkgoRecover()

		ctxWithLogLevel := contextutils.WithExistingLogger(bootstrapOpts.WatchOpts.Ctx, MustGetSugaredLogger(GlooServiceName))
		bootstrapOpts.WatchOpts.Ctx = ctxWithLogLevel

		if runOptions.ExtensionsBuilders.Gloo == nil {
			_ = setup.RunGloo(bootstrapOpts)
		} else {
			glooExtensions := runOptions.ExtensionsBuilders.Gloo(ctx, bootstrapOpts)
			_ = setup.RunGlooWithExtensions(bootstrapOpts, glooExtensions)
		}
	}(bootstrapOpts)

	if !runOptions.WhatToRun.DisableFds {
		go func(bootstrapOpts bootstrap.Opts) {
			defer GinkgoRecover()

			ctxWithLogLevel := contextutils.WithExistingLogger(bootstrapOpts.WatchOpts.Ctx, MustGetSugaredLogger(FdsServiceName))
			bootstrapOpts.WatchOpts.Ctx = ctxWithLogLevel

			if runOptions.ExtensionsBuilders.Fds == nil {
				_ = fds_syncer.RunFDS(bootstrapOpts)
			} else {
				fdsExtensions := runOptions.ExtensionsBuilders.Fds(ctx, bootstrapOpts)
				_ = fds_syncer.RunFDSWithExtensions(bootstrapOpts, fdsExtensions)
			}
		}(bootstrapOpts)
	}

	if !runOptions.WhatToRun.DisableUds {
		go func(bootstrapOpts bootstrap.Opts) {
			defer GinkgoRecover()

			ctxWithLogLevel := contextutils.WithExistingLogger(bootstrapOpts.WatchOpts.Ctx, MustGetSugaredLogger(UdsServiceName))
			bootstrapOpts.WatchOpts.Ctx = ctxWithLogLevel

			_ = uds_syncer.RunUDS(bootstrapOpts)
		}(bootstrapOpts)
	}

	testClients := getTestClients(ctx, bootstrapOpts)
	testClients.GlooPort = int(runOptions.ports.Gloo)
	testClients.RestXdsPort = int(runOptions.ports.RestXds)
	return testClients
}

func constructTestSettings(runOptions *RunOptions) *gloov1.Settings {
	// Define default Settings that all tests will inherit
	settings := &gloov1.Settings{
		WatchNamespaces:    runOptions.NsToWatch,
		DiscoveryNamespace: runOptions.NsToWrite,
		DevMode:            true,
		Gloo: &gloov1.GlooOptions{
			RemoveUnusedFilters: &wrappers.BoolValue{Value: true},
			RestXdsBindAddr:     fmt.Sprintf("%s:%d", net.IPv4zero.String(), runOptions.ports.RestXds),
			EnableRestEds:       &wrappers.BoolValue{Value: false},
			// Invalid Routes can be difficult to track down
			// By creating a Response Code and Body that are unique, hopefully it is easier to identify situations
			// where invalid route replacement is taking effect.
			InvalidConfigPolicy: &gloov1.GlooOptions_InvalidConfigPolicy{
				ReplaceInvalidRoutes:     true,
				InvalidRouteResponseCode: http.StatusTeapot,
				InvalidRouteResponseBody: "Invalid Route Replacement Encountered In Test",
			},
		},
		Gateway: &gloov1.GatewayOptions{
			Validation: &gloov1.GatewayOptions_ValidationOptions{
				// To validate transformations, we call out to an Envoy binary running in validate mode
				// https://github.com/solo-io/gloo/blob/01d04751f72c168e304977c4f67fdbcbf30232a9/projects/gloo/pkg/bootstrap/bootstrap_validation.go#L28
				// This binary is present in our CI/CD pipeline. But when running locally it is not, so we fallback to the Upstream Envoy binary
				// which doesn't have the custom Solo.io types registered with the deserializer. Therefore, when running locally tests will fail,
				// and the logs will contain:
				//	"Invalid type URL, unknown type: envoy.api.v2.filter.http.RouteTransformations for type Any)"
				// We do not perform transformation validation as part of our in memory e2e tests, so we explicitly disable this
				DisableTransformationValidation: &wrappers.BoolValue{Value: true},
			},
			EnableGatewayController: &wrappers.BoolValue{Value: !runOptions.WhatToRun.DisableGateway},
			// To make debugging slightly easier
			PersistProxySpec: &wrappers.BoolValue{Value: true},
			// For now we default this to false, and have explicit tests (aggregate_listener_test), which validate
			// the behavior when the setting is configured to true
			IsolateVirtualHostsBySslConfig: &wrappers.BoolValue{Value: false},
		},
	}

	// Allow tests to override the default Settings
	if runOptions.Settings != nil {
		settingsOverrides := proto.Clone(runOptions.Settings)
		err := mergo.Merge(
			settings,
			settingsOverrides,
			mergo.WithOverride,
			mergo.WithTransformers(&emptyValueTransformer{}))
		ExpectWithOffset(1, err).NotTo(HaveOccurred())
	}

	return settings
}

// mergo.Merge struggles to distinguish empty values and nil values
// Using mergo.WithOverwriteWithEmptyValue is overly aggressive since all empty values
// are used to override. This custom transformer supports certain types which we need
// to override in our Settings object
type emptyValueTransformer struct {
}

func (t emptyValueTransformer) Transformer(typ reflect.Type) func(dst, src reflect.Value) error {
	overridableTypes := []any{
		wrappers.BoolValue{},
		wrappers.StringValue{},
		wrappers.UInt32Value{},
		duration.Duration{},
		core.ResourceRef{},
		gloov1.GlooOptions_InvalidConfigPolicy{},
	}

	for _, overridableType := range overridableTypes {
		if typ == reflect.TypeOf(overridableType) {
			return func(dst, src reflect.Value) error {
				dst.Set(src)
				return nil
			}
		}
	}

	return nil
}

// constructTestOpts mirrors constructOpts in our SetupSyncer
func constructTestOpts(ctx context.Context, runOptions *RunOptions, settings *gloov1.Settings) bootstrap.Opts {
	ctx = contextutils.WithLogger(ctx, "gloo")
	logger := contextutils.LoggerFrom(ctx)
	grpcServer := grpc.NewServer(grpc.StreamInterceptor(
		grpc_middleware.ChainStreamServer(
			grpc_ctxtags.StreamServerInterceptor(),
			grpc_zap.StreamServerInterceptor(zap.NewNop()),
			func(srv interface{}, ss grpc.ServerStream, info *grpc.StreamServerInfo, handler grpc.StreamHandler) error {
				logger.Infof("gRPC call: %v", info.FullMethod)
				return handler(srv, ss)
			},
		)),
	)
	grpcServerValidation := grpc.NewServer(grpc.StreamInterceptor(
		grpc_middleware.ChainStreamServer(
			grpc_ctxtags.StreamServerInterceptor(),
			grpc_zap.StreamServerInterceptor(zap.NewNop()),
			func(srv interface{}, ss grpc.ServerStream, info *grpc.StreamServerInfo, handler grpc.StreamHandler) error {
				logger.Infof("gRPC call: %v", info.FullMethod)
				return handler(srv, ss)
			},
		)),
	)
	f := &factory.MemoryResourceClientFactory{
		Cache: memory.NewInMemoryResourceCache(),
	}
	var kubeCoreCache corecache.KubeCoreCache
	if runOptions.KubeClient != nil {
		var err error
		kubeCoreCache, err = cache.NewKubeCoreCacheWithOptions(ctx, runOptions.KubeClient, time.Hour, settings.GetWatchNamespaces())
		Expect(err).NotTo(HaveOccurred())
	}
	var validationOpts *translator.ValidationOpts
	if settings.GetGateway().GetValidation().GetProxyValidationServerAddr() != "" {
		if validationOpts == nil {
			validationOpts = &translator.ValidationOpts{}
		}
		validationOpts.ProxyValidationServerAddress = settings.GetGateway().GetValidation().GetProxyValidationServerAddr()
	}
	if settings.GetGateway().GetValidation().GetAllowWarnings() != nil {
		if validationOpts == nil {
			validationOpts = &translator.ValidationOpts{}
		}
		validationOpts.AllowWarnings = settings.GetGateway().GetValidation().GetAllowWarnings().GetValue()
	}
	if settings.GetGateway().GetValidation().GetAlwaysAccept() != nil {
		if validationOpts == nil {
			validationOpts = &translator.ValidationOpts{}
		}
		validationOpts.AlwaysAcceptResources = settings.GetGateway().GetValidation().GetAlwaysAccept().GetValue()
	}

	// By default in e2e tests, we persist secrets in memory
	var secretFactory factory.ResourceClientFactory = f

	if settings.GetVaultSecretSource() != nil {
		// The test author has configured the secret source to be Vault, instead of an in memory cache
		// As a result, we need to construct a client to communicate with that vault instance
		vaultSecretSource := settings.GetVaultSecretSource()

		vaultClient, err := bootstrap_clients.VaultClientForSettings(vaultSecretSource)
		Expect(err).NotTo(HaveOccurred())
		secretFactory = bootstrap_clients.NewVaultSecretClientFactory(bootstrap_clients.NoopVaultClientInitFunc(vaultClient), vaultSecretSource.GetPathPrefix(), vaultSecretSource.GetRootKey())
	}

	return bootstrap.Opts{
		Settings:                settings,
		WriteNamespace:          settings.GetDiscoveryNamespace(),
		StatusReporterNamespace: statusutils.GetStatusReporterNamespaceOrDefault(defaults.GlooSystem),
		Upstreams:               f,
		UpstreamGroups:          f,
		Proxies:                 f,
		Secrets:                 secretFactory,
		Artifacts:               f,
		AuthConfigs:             f,
		RateLimitConfigs:        f,
		GraphQLApis:             f,
		Gateways:                f,
		MatchableHttpGateways:   f,
		MatchableTcpGateways:    f,
		VirtualServices:         f,
		RouteTables:             f,
		RouteOptions:            f,
		VirtualHostOptions:      f,
		KubeServiceClient:       newServiceClient(ctx, f, runOptions),
		WatchNamespaces:         settings.GetWatchNamespaces(),
		WatchOpts: clients.WatchOpts{
			Ctx:         ctx,
			RefreshRate: time.Second / 10,
		},
		ControlPlane: setup.NewControlPlane(ctx, grpcServer, &net.TCPAddr{
			IP:   net.IPv4zero,
			Port: int(runOptions.ports.Gloo),
		}, nil, true),
		ValidationServer: setup.NewValidationServer(ctx, grpcServerValidation, &net.TCPAddr{
			IP:   net.IPv4zero,
			Port: int(runOptions.ports.Validation),
		}, true),
		ProxyDebugServer: setup.NewProxyDebugServer(ctx, grpcServer, &net.TCPAddr{
			IP:   net.IPv4zero,
			Port: 8001,
		}, false),
		KubeClient:               runOptions.KubeClient,
		KubeCoreCache:            kubeCoreCache,
		DevMode:                  settings.GetDevMode(),
		Consul:                   getConsulRunOpts(settings),
		GatewayControllerEnabled: settings.GetGateway().GetEnableGatewayController().GetValue(),
		ValidationOpts:           validationOpts,
		Identity:                 singlereplica.Identity(),
	}
}

func getConsulRunOpts(settings *gloov1.Settings) bootstrap.Consul {
	if settings.GetConsul() == nil {
		// If the developer hasn't configured Consul settings, we don't want to try to create a consul client
		return bootstrap.Consul{
			ConsulWatcher: nil,
		}
	}

	consulClient, err := api.NewClient(api.DefaultConfig())
	Expect(err).NotTo(HaveOccurred())

	consulWatcher, err := consul.NewConsulWatcher(consulClient,
		settings.GetConsul().GetServiceDiscovery().GetDataCenters(),
		settings.GetConsulDiscovery().GetServiceTagsAllowlist())
	Expect(err).NotTo(HaveOccurred())

	return bootstrap.Consul{
		ConsulWatcher:      consulWatcher,
		DnsServer:          settings.GetConsul().GetDnsAddress(),
		DnsPollingInterval: settings.GetConsul().GetDnsPollingInterval(),
	}
}

func newServiceClient(ctx context.Context, memFactory *factory.MemoryResourceClientFactory, runOpts *RunOptions) skkube.ServiceClient {

	// If the KubeClient option is set, the kubernetes discovery plugin will be activated and we must provide a
	// kubernetes service client in order for service-derived upstreams to be included in the snapshot
	if kube := runOpts.KubeClient; kube != nil {
		kubeCache, err := cache.NewKubeCoreCache(ctx, kube)
		if err != nil {
			panic(err)
		}
		return service.NewServiceClient(kube, kubeCache)
	}

	// Else return in-memory client
	client, err := skkube.NewServiceClient(ctx, memFactory)
	if err != nil {
		panic(err)
	}
	return client
}

func getTestClients(ctx context.Context, bootstrapOpts bootstrap.Opts) TestClients {
	gatewayClient, err := gatewayv1.NewGatewayClient(ctx, bootstrapOpts.Gateways)
	Expect(err).NotTo(HaveOccurred())
	httpGatewayClient, err := gatewayv1.NewMatchableHttpGatewayClient(ctx, bootstrapOpts.MatchableHttpGateways)
	Expect(err).NotTo(HaveOccurred())
	tcpGatewayClient, err := gatewayv1.NewMatchableTcpGatewayClient(ctx, bootstrapOpts.MatchableTcpGateways)
	Expect(err).NotTo(HaveOccurred())
	virtualServiceClient, err := gatewayv1.NewVirtualServiceClient(ctx, bootstrapOpts.VirtualServices)
	Expect(err).NotTo(HaveOccurred())
	upstreamClient, err := gloov1.NewUpstreamClient(ctx, bootstrapOpts.Upstreams)
	Expect(err).NotTo(HaveOccurred())
	secretClient, err := gloov1.NewSecretClient(ctx, bootstrapOpts.Secrets)
	Expect(err).NotTo(HaveOccurred())
	artifactClient, err := gloov1.NewArtifactClient(ctx, bootstrapOpts.Artifacts)
	Expect(err).NotTo(HaveOccurred())
	proxyClient, err := gloov1.NewProxyClient(ctx, bootstrapOpts.Proxies)
	Expect(err).NotTo(HaveOccurred())

	authConfigClient, err := extauthv1.NewAuthConfigClient(ctx, bootstrapOpts.AuthConfigs)
	Expect(err).NotTo(HaveOccurred())
	rlcClient, err := v1alpha1.NewRateLimitConfigClient(ctx, bootstrapOpts.RateLimitConfigs)
	Expect(err).NotTo(HaveOccurred())
	gqlClient, err := graphqlv1beta1.NewGraphQLApiClient(ctx, bootstrapOpts.GraphQLApis)
	Expect(err).NotTo(HaveOccurred())

	return TestClients{
		GatewayClient:        gatewayClient,
		HttpGatewayClient:    httpGatewayClient,
		TcpGatewayClient:     tcpGatewayClient,
		VirtualServiceClient: virtualServiceClient,
		UpstreamClient:       upstreamClient,
		SecretClient:         secretClient,
		ArtifactClient:       artifactClient,
		ProxyClient:          proxyClient,
		ServiceClient:        bootstrapOpts.KubeServiceClient,

		AuthConfigClient:      authConfigClient,
		RateLimitConfigClient: rlcClient,
		GraphQLApiClient:      gqlClient,
	}
}

// TestClients represents the set of ResourceClients available for tests
type TestClients struct {
	GatewayClient        gatewayv1.GatewayClient
	HttpGatewayClient    gatewayv1.MatchableHttpGatewayClient
	TcpGatewayClient     gatewayv1.MatchableTcpGatewayClient
	VirtualServiceClient gatewayv1.VirtualServiceClient
	ProxyClient          gloov1.ProxyClient
	UpstreamClient       gloov1.UpstreamClient
	SecretClient         gloov1.SecretClient
	ArtifactClient       gloov1.ArtifactClient
	ServiceClient        skkube.ServiceClient

	AuthConfigClient      extauthv1.AuthConfigClient
	RateLimitConfigClient v1alpha1.RateLimitConfigClient
	GraphQLApiClient      graphqlv1beta1.GraphQLApiClient

	GlooPort    int
	RestXdsPort int
}

// WriteSnapshot writes all resources in the ApiSnapshot to the cache
func (c TestClients) WriteSnapshot(ctx context.Context, snapshot *gloosnapshot.ApiSnapshot) error {
	// We intentionally create child resources first to avoid having the validation webhook reject
	// the parent resource

	writeOptions := clients.WriteOpts{
		Ctx:               ctx,
		OverwriteExisting: false,
	}
	for _, secret := range snapshot.Secrets {
		if _, writeErr := c.SecretClient.Write(secret, writeOptions); writeErr != nil {
			return writeErr
		}
	}
	for _, artifact := range snapshot.Artifacts {
		if _, writeErr := c.ArtifactClient.Write(artifact, writeOptions); writeErr != nil {
			return writeErr
		}
	}
	for _, us := range snapshot.Upstreams {
		if _, writeErr := c.UpstreamClient.Write(us, writeOptions); writeErr != nil {
			return writeErr
		}
	}
	for _, ac := range snapshot.AuthConfigs {
		if _, writeErr := c.AuthConfigClient.Write(ac, writeOptions); writeErr != nil {
			return writeErr
		}
	}
	for _, rlc := range snapshot.Ratelimitconfigs {
		if _, writeErr := c.RateLimitConfigClient.Write(rlc, writeOptions); writeErr != nil {
			return writeErr
		}
	}
	for _, gql := range snapshot.GraphqlApis {
		if _, writeErr := c.GraphQLApiClient.Write(gql, writeOptions); writeErr != nil {
			return writeErr
		}
	}
	for _, vs := range snapshot.VirtualServices {
		if _, writeErr := c.VirtualServiceClient.Write(vs, writeOptions); writeErr != nil {
			return writeErr
		}
	}
	for _, hgw := range snapshot.HttpGateways {
		if _, writeErr := c.HttpGatewayClient.Write(hgw, writeOptions); writeErr != nil {
			return writeErr
		}
	}
	for _, tgw := range snapshot.TcpGateways {
		if _, writeErr := c.TcpGatewayClient.Write(tgw, writeOptions); writeErr != nil {
			return writeErr
		}
	}
	for _, gw := range snapshot.Gateways {
		if _, writeErr := c.GatewayClient.Write(gw, writeOptions); writeErr != nil {
			return writeErr
		}
	}
	for _, proxy := range snapshot.Proxies {
		if _, writeErr := c.ProxyClient.Write(proxy, writeOptions); writeErr != nil {
			return writeErr
		}
	}

	return nil
}

// DeleteSnapshot deletes all resources in the ApiSnapshot from the cache
func (c TestClients) DeleteSnapshot(ctx context.Context, snapshot *gloosnapshot.ApiSnapshot) error {
	// We intentionally delete resources in the reverse order that we create resources
	// If we delete child resources first, the validation webhook may reject the change

	deleteOptions := clients.DeleteOpts{
		Ctx:            ctx,
		IgnoreNotExist: true,
	}

	for _, gw := range snapshot.Gateways {
		gwNamespace, gwName := gw.GetMetadata().Ref().Strings()
		if deleteErr := c.GatewayClient.Delete(gwNamespace, gwName, deleteOptions); deleteErr != nil {
			return deleteErr
		}
	}
	for _, hgw := range snapshot.HttpGateways {
		hgwNamespace, hgwName := hgw.GetMetadata().Ref().Strings()
		if deleteErr := c.HttpGatewayClient.Delete(hgwNamespace, hgwName, deleteOptions); deleteErr != nil {
			return deleteErr
		}
	}
	for _, tgw := range snapshot.TcpGateways {
		tgwNamespace, tgwName := tgw.GetMetadata().Ref().Strings()
		if deleteErr := c.TcpGatewayClient.Delete(tgwNamespace, tgwName, deleteOptions); deleteErr != nil {
			return deleteErr
		}
	}
	for _, vs := range snapshot.VirtualServices {
		vsNamespace, vsName := vs.GetMetadata().Ref().Strings()
		if deleteErr := c.VirtualServiceClient.Delete(vsNamespace, vsName, deleteOptions); deleteErr != nil {
			return deleteErr
		}
	}
	for _, gql := range snapshot.GraphqlApis {
		gqlNamespace, gqlName := gql.GetMetadata().Ref().Strings()
		if deleteErr := c.GraphQLApiClient.Delete(gqlNamespace, gqlName, deleteOptions); deleteErr != nil {
			return deleteErr
		}
	}
	for _, rlc := range snapshot.Ratelimitconfigs {
		rlcNamespace, rlcName := rlc.GetMetadata().Ref().Strings()
		if deleteErr := c.GraphQLApiClient.Delete(rlcNamespace, rlcName, deleteOptions); deleteErr != nil {
			return deleteErr
		}
	}
	for _, ac := range snapshot.AuthConfigs {
		acNamespace, acName := ac.GetMetadata().Ref().Strings()
		if deleteErr := c.GraphQLApiClient.Delete(acNamespace, acName, deleteOptions); deleteErr != nil {
			return deleteErr
		}
	}
	for _, us := range snapshot.Upstreams {
		usNamespace, usName := us.GetMetadata().Ref().Strings()
		if deleteErr := c.UpstreamClient.Delete(usNamespace, usName, deleteOptions); deleteErr != nil {
			return deleteErr
		}
	}
	for _, artifact := range snapshot.Artifacts {
		artifactNamespace, artifactName := artifact.GetMetadata().Ref().Strings()
		if deleteErr := c.ArtifactClient.Delete(artifactNamespace, artifactName, deleteOptions); deleteErr != nil {
			return deleteErr
		}
	}
	for _, secret := range snapshot.Secrets {
		secretNamespace, secretName := secret.GetMetadata().Ref().Strings()
		if deleteErr := c.SecretClient.Delete(secretNamespace, secretName, deleteOptions); deleteErr != nil {
			return deleteErr
		}
	}

	// Proxies are auto generated by Gateway resources
	// Therefore we delete Proxies after we have deleted the resources that may regenerate a Proxy
	for _, proxy := range snapshot.Proxies {
		proxyNamespace, proxyName := proxy.GetMetadata().Ref().Strings()
		if deleteErr := c.ProxyClient.Delete(proxyNamespace, proxyName, deleteOptions); deleteErr != nil {
			return deleteErr
		}
	}

	return nil
}