package proxycfg import ( "context" "fmt" "io/ioutil" "path" "path/filepath" "sync" "sync/atomic" "time" "github.com/hashicorp/consul/agent/cache" cachetype "github.com/hashicorp/consul/agent/cache-types" "github.com/hashicorp/consul/agent/connect" "github.com/hashicorp/consul/agent/consul/discoverychain" "github.com/hashicorp/consul/agent/structs" "github.com/mitchellh/go-testing-interface" "github.com/stretchr/testify/require" ) // TestCacheTypes encapsulates all the different cache types proxycfg.State will // watch/request for controlling one during testing. type TestCacheTypes struct { roots *ControllableCacheType leaf *ControllableCacheType intentions *ControllableCacheType health *ControllableCacheType query *ControllableCacheType compiledChain *ControllableCacheType serviceHTTPChecks *ControllableCacheType } // NewTestCacheTypes creates a set of ControllableCacheTypes for all types that // proxycfg will watch suitable for testing a proxycfg.State or Manager. func NewTestCacheTypes(t testing.T) *TestCacheTypes { t.Helper() ct := &TestCacheTypes{ roots: NewControllableCacheType(t), leaf: NewControllableCacheType(t), intentions: NewControllableCacheType(t), health: NewControllableCacheType(t), query: NewControllableCacheType(t), compiledChain: NewControllableCacheType(t), serviceHTTPChecks: NewControllableCacheType(t), } ct.query.blocking = false return ct } // TestCacheWithTypes registers ControllableCacheTypes for all types that // proxycfg will watch suitable for testing a proxycfg.State or Manager. func TestCacheWithTypes(t testing.T, types *TestCacheTypes) *cache.Cache { c := cache.TestCache(t) c.RegisterType(cachetype.ConnectCARootName, types.roots) c.RegisterType(cachetype.ConnectCALeafName, types.leaf) c.RegisterType(cachetype.IntentionMatchName, types.intentions) c.RegisterType(cachetype.HealthServicesName, types.health) c.RegisterType(cachetype.PreparedQueryName, types.query) c.RegisterType(cachetype.CompiledDiscoveryChainName, types.compiledChain) c.RegisterType(cachetype.ServiceHTTPChecksName, types.serviceHTTPChecks) return c } // TestCerts generates a CA and Leaf suitable for returning as mock CA // root/leaf cache requests. func TestCerts(t testing.T) (*structs.IndexedCARoots, *structs.IssuedCert) { t.Helper() ca := connect.TestCA(t, nil) roots := &structs.IndexedCARoots{ ActiveRootID: ca.ID, TrustDomain: fmt.Sprintf("%s.consul", connect.TestClusterID), Roots: []*structs.CARoot{ca}, } return roots, TestLeafForCA(t, ca) } // TestLeafForCA generates new Leaf suitable for returning as mock CA // leaf cache response, signed by an existing CA. func TestLeafForCA(t testing.T, ca *structs.CARoot) *structs.IssuedCert { leafPEM, pkPEM := connect.TestLeaf(t, "web", ca) leafCert, err := connect.ParseCert(leafPEM) require.NoError(t, err) return &structs.IssuedCert{ SerialNumber: connect.EncodeSerialNumber(leafCert.SerialNumber), CertPEM: leafPEM, PrivateKeyPEM: pkPEM, Service: "web", ServiceURI: leafCert.URIs[0].String(), ValidAfter: leafCert.NotBefore, ValidBefore: leafCert.NotAfter, } } // TestIntentions returns a sample intentions match result useful to // mocking service discovery cache results. func TestIntentions(t testing.T) *structs.IndexedIntentionMatches { return &structs.IndexedIntentionMatches{ Matches: []structs.Intentions{ []*structs.Intention{ &structs.Intention{ ID: "foo", SourceNS: "default", SourceName: "billing", DestinationNS: "default", DestinationName: "web", Action: structs.IntentionActionAllow, }, }, }, } } // TestUpstreamNodes returns a sample service discovery result useful to // mocking service discovery cache results. func TestUpstreamNodes(t testing.T) structs.CheckServiceNodes { return structs.CheckServiceNodes{ structs.CheckServiceNode{ Node: &structs.Node{ ID: "test1", Node: "test1", Address: "10.10.1.1", Datacenter: "dc1", }, Service: structs.TestNodeService(t), }, structs.CheckServiceNode{ Node: &structs.Node{ ID: "test2", Node: "test2", Address: "10.10.1.2", Datacenter: "dc1", }, Service: structs.TestNodeService(t), }, } } func TestUpstreamNodesInStatus(t testing.T, status string) structs.CheckServiceNodes { return structs.CheckServiceNodes{ structs.CheckServiceNode{ Node: &structs.Node{ ID: "test1", Node: "test1", Address: "10.10.1.1", Datacenter: "dc1", }, Service: structs.TestNodeService(t), Checks: structs.HealthChecks{ &structs.HealthCheck{ Node: "test1", ServiceName: "web", Name: "force", Status: status, }, }, }, structs.CheckServiceNode{ Node: &structs.Node{ ID: "test2", Node: "test2", Address: "10.10.1.2", Datacenter: "dc1", }, Service: structs.TestNodeService(t), Checks: structs.HealthChecks{ &structs.HealthCheck{ Node: "test2", ServiceName: "web", Name: "force", Status: status, }, }, }, } } func TestUpstreamNodesDC2(t testing.T) structs.CheckServiceNodes { return structs.CheckServiceNodes{ structs.CheckServiceNode{ Node: &structs.Node{ ID: "test1", Node: "test1", Address: "10.20.1.1", Datacenter: "dc2", }, Service: structs.TestNodeService(t), }, structs.CheckServiceNode{ Node: &structs.Node{ ID: "test2", Node: "test2", Address: "10.20.1.2", Datacenter: "dc2", }, Service: structs.TestNodeService(t), }, } } func TestUpstreamNodesInStatusDC2(t testing.T, status string) structs.CheckServiceNodes { return structs.CheckServiceNodes{ structs.CheckServiceNode{ Node: &structs.Node{ ID: "test1", Node: "test1", Address: "10.20.1.1", Datacenter: "dc2", }, Service: structs.TestNodeService(t), Checks: structs.HealthChecks{ &structs.HealthCheck{ Node: "test1", ServiceName: "web", Name: "force", Status: status, }, }, }, structs.CheckServiceNode{ Node: &structs.Node{ ID: "test2", Node: "test2", Address: "10.20.1.2", Datacenter: "dc2", }, Service: structs.TestNodeService(t), Checks: structs.HealthChecks{ &structs.HealthCheck{ Node: "test2", ServiceName: "web", Name: "force", Status: status, }, }, }, } } func TestUpstreamNodesDC3(t testing.T) structs.CheckServiceNodes { return structs.CheckServiceNodes{ structs.CheckServiceNode{ Node: &structs.Node{ ID: "test1", Node: "test1", Address: "10.30.1.1", Datacenter: "dc3", }, Service: structs.TestNodeService(t), }, structs.CheckServiceNode{ Node: &structs.Node{ ID: "test2", Node: "test2", Address: "10.30.1.2", Datacenter: "dc3", }, Service: structs.TestNodeService(t), }, } } func TestUpstreamNodesAlternate(t testing.T) structs.CheckServiceNodes { return structs.CheckServiceNodes{ structs.CheckServiceNode{ Node: &structs.Node{ ID: "alt-test1", Node: "alt-test1", Address: "10.20.1.1", Datacenter: "dc1", }, Service: structs.TestNodeService(t), }, structs.CheckServiceNode{ Node: &structs.Node{ ID: "alt-test2", Node: "alt-test2", Address: "10.20.1.2", Datacenter: "dc1", }, Service: structs.TestNodeService(t), }, } } func TestGatewayNodesDC1(t testing.T) structs.CheckServiceNodes { return structs.CheckServiceNodes{ structs.CheckServiceNode{ Node: &structs.Node{ ID: "mesh-gateway-1", Node: "mesh-gateway", Address: "10.10.1.1", Datacenter: "dc1", }, Service: structs.TestNodeServiceMeshGatewayWithAddrs(t, "10.10.1.1", 8443, structs.ServiceAddress{Address: "10.10.1.1", Port: 8443}, structs.ServiceAddress{Address: "198.118.1.1", Port: 443}), }, structs.CheckServiceNode{ Node: &structs.Node{ ID: "mesh-gateway-2", Node: "mesh-gateway", Address: "10.10.1.2", Datacenter: "dc1", }, Service: structs.TestNodeServiceMeshGatewayWithAddrs(t, "10.10.1.2", 8443, structs.ServiceAddress{Address: "10.0.1.2", Port: 8443}, structs.ServiceAddress{Address: "198.118.1.2", Port: 443}), }, } } func TestGatewayNodesDC2(t testing.T) structs.CheckServiceNodes { return structs.CheckServiceNodes{ structs.CheckServiceNode{ Node: &structs.Node{ ID: "mesh-gateway-1", Node: "mesh-gateway", Address: "10.0.1.1", Datacenter: "dc2", }, Service: structs.TestNodeServiceMeshGatewayWithAddrs(t, "10.0.1.1", 8443, structs.ServiceAddress{Address: "10.0.1.1", Port: 8443}, structs.ServiceAddress{Address: "198.18.1.1", Port: 443}), }, structs.CheckServiceNode{ Node: &structs.Node{ ID: "mesh-gateway-2", Node: "mesh-gateway", Address: "10.0.1.2", Datacenter: "dc2", }, Service: structs.TestNodeServiceMeshGatewayWithAddrs(t, "10.0.1.2", 8443, structs.ServiceAddress{Address: "10.0.1.2", Port: 8443}, structs.ServiceAddress{Address: "198.18.1.2", Port: 443}), }, } } func TestGatewayNodesDC3(t testing.T) structs.CheckServiceNodes { return structs.CheckServiceNodes{ structs.CheckServiceNode{ Node: &structs.Node{ ID: "mesh-gateway-1", Node: "mesh-gateway", Address: "10.30.1.1", Datacenter: "dc3", }, Service: structs.TestNodeServiceMeshGatewayWithAddrs(t, "10.30.1.1", 8443, structs.ServiceAddress{Address: "10.0.1.1", Port: 8443}, structs.ServiceAddress{Address: "198.38.1.1", Port: 443}), }, structs.CheckServiceNode{ Node: &structs.Node{ ID: "mesh-gateway-2", Node: "mesh-gateway", Address: "10.30.1.2", Datacenter: "dc3", }, Service: structs.TestNodeServiceMeshGatewayWithAddrs(t, "10.30.1.2", 8443, structs.ServiceAddress{Address: "10.30.1.2", Port: 8443}, structs.ServiceAddress{Address: "198.38.1.2", Port: 443}), }, } } func TestGatewayServiceGroupBarDC1(t testing.T) structs.CheckServiceNodes { return structs.CheckServiceNodes{ structs.CheckServiceNode{ Node: &structs.Node{ ID: "bar-node-1", Node: "bar-node-1", Address: "10.1.1.4", Datacenter: "dc1", }, Service: &structs.NodeService{ Kind: structs.ServiceKindConnectProxy, Service: "bar-sidecar-proxy", Address: "172.16.1.6", Port: 2222, Meta: map[string]string{ "version": "1", }, Proxy: structs.ConnectProxyConfig{ DestinationServiceName: "bar", Upstreams: structs.TestUpstreams(t), }, }, }, structs.CheckServiceNode{ Node: &structs.Node{ ID: "bar-node-2", Node: "bar-node-2", Address: "10.1.1.5", Datacenter: "dc1", }, Service: &structs.NodeService{ Kind: structs.ServiceKindConnectProxy, Service: "bar-sidecar-proxy", Address: "172.16.1.7", Port: 2222, Meta: map[string]string{ "version": "1", }, Proxy: structs.ConnectProxyConfig{ DestinationServiceName: "bar", Upstreams: structs.TestUpstreams(t), }, }, }, structs.CheckServiceNode{ Node: &structs.Node{ ID: "bar-node-3", Node: "bar-node-3", Address: "10.1.1.6", Datacenter: "dc1", }, Service: &structs.NodeService{ Kind: structs.ServiceKindConnectProxy, Service: "bar-sidecar-proxy", Address: "172.16.1.8", Port: 2222, Meta: map[string]string{ "version": "2", }, Proxy: structs.ConnectProxyConfig{ DestinationServiceName: "bar", Upstreams: structs.TestUpstreams(t), }, }, }, } } func TestGatewayServiceGroupFooDC1(t testing.T) structs.CheckServiceNodes { return structs.CheckServiceNodes{ structs.CheckServiceNode{ Node: &structs.Node{ ID: "foo-node-1", Node: "foo-node-1", Address: "10.1.1.1", Datacenter: "dc1", }, Service: &structs.NodeService{ Kind: structs.ServiceKindConnectProxy, Service: "foo-sidecar-proxy", Address: "172.16.1.3", Port: 2222, Meta: map[string]string{ "version": "1", }, Proxy: structs.ConnectProxyConfig{ DestinationServiceName: "foo", Upstreams: structs.TestUpstreams(t), }, }, }, structs.CheckServiceNode{ Node: &structs.Node{ ID: "foo-node-2", Node: "foo-node-2", Address: "10.1.1.2", Datacenter: "dc1", }, Service: &structs.NodeService{ Kind: structs.ServiceKindConnectProxy, Service: "foo-sidecar-proxy", Address: "172.16.1.4", Port: 2222, Meta: map[string]string{ "version": "1", }, Proxy: structs.ConnectProxyConfig{ DestinationServiceName: "foo", Upstreams: structs.TestUpstreams(t), }, }, }, structs.CheckServiceNode{ Node: &structs.Node{ ID: "foo-node-3", Node: "foo-node-3", Address: "10.1.1.3", Datacenter: "dc1", }, Service: &structs.NodeService{ Kind: structs.ServiceKindConnectProxy, Service: "foo-sidecar-proxy", Address: "172.16.1.5", Port: 2222, Meta: map[string]string{ "version": "2", }, Proxy: structs.ConnectProxyConfig{ DestinationServiceName: "foo", Upstreams: structs.TestUpstreams(t), }, }, }, structs.CheckServiceNode{ Node: &structs.Node{ ID: "foo-node-4", Node: "foo-node-4", Address: "10.1.1.7", Datacenter: "dc1", }, Service: &structs.NodeService{ Kind: structs.ServiceKindConnectProxy, Service: "foo-sidecar-proxy", Address: "172.16.1.9", Port: 2222, Meta: map[string]string{ "version": "2", }, Proxy: structs.ConnectProxyConfig{ DestinationServiceName: "foo", Upstreams: structs.TestUpstreams(t), }, }, Checks: structs.HealthChecks{ &structs.HealthCheck{ Node: "foo-node-4", ServiceName: "foo-sidecar-proxy", Name: "proxy-alive", Status: "warning", }, }, }, } } // TestConfigSnapshot returns a fully populated snapshot func TestConfigSnapshot(t testing.T) *ConfigSnapshot { roots, leaf := TestCerts(t) // no entries implies we'll get a default chain dbChain := discoverychain.TestCompileConfigEntries( t, "db", "default", "dc1", connect.TestClusterID+".consul", "dc1", nil) return &ConfigSnapshot{ Kind: structs.ServiceKindConnectProxy, Service: "web-sidecar-proxy", ProxyID: structs.NewServiceID("web-sidecar-proxy", nil), Address: "0.0.0.0", Port: 9999, Proxy: structs.ConnectProxyConfig{ DestinationServiceID: "web", DestinationServiceName: "web", LocalServiceAddress: "127.0.0.1", LocalServicePort: 8080, Config: map[string]interface{}{ "foo": "bar", }, Upstreams: structs.TestUpstreams(t), }, Roots: roots, ConnectProxy: configSnapshotConnectProxy{ ConfigSnapshotUpstreams: ConfigSnapshotUpstreams{ Leaf: leaf, DiscoveryChain: map[string]*structs.CompiledDiscoveryChain{ "db": dbChain, }, WatchedUpstreamEndpoints: map[string]map[string]structs.CheckServiceNodes{ "db": map[string]structs.CheckServiceNodes{ "db.default.dc1": TestUpstreamNodes(t), }, }, }, PreparedQueryEndpoints: map[string]structs.CheckServiceNodes{ "prepared_query:geo-cache": TestUpstreamNodes(t), }, }, Datacenter: "dc1", } } // TestConfigSnapshotDiscoveryChain returns a fully populated snapshot using a discovery chain func TestConfigSnapshotDiscoveryChain(t testing.T) *ConfigSnapshot { return testConfigSnapshotDiscoveryChain(t, "simple") } func TestConfigSnapshotDiscoveryChainExternalSNI(t testing.T) *ConfigSnapshot { return testConfigSnapshotDiscoveryChain(t, "external-sni") } func TestConfigSnapshotDiscoveryChainWithOverrides(t testing.T) *ConfigSnapshot { return testConfigSnapshotDiscoveryChain(t, "simple-with-overrides") } func TestConfigSnapshotDiscoveryChainWithFailover(t testing.T) *ConfigSnapshot { return testConfigSnapshotDiscoveryChain(t, "failover") } func TestConfigSnapshotDiscoveryChainWithFailoverThroughRemoteGateway(t testing.T) *ConfigSnapshot { return testConfigSnapshotDiscoveryChain(t, "failover-through-remote-gateway") } func TestConfigSnapshotDiscoveryChainWithFailoverThroughRemoteGatewayTriggered(t testing.T) *ConfigSnapshot { return testConfigSnapshotDiscoveryChain(t, "failover-through-remote-gateway-triggered") } func TestConfigSnapshotDiscoveryChainWithDoubleFailoverThroughRemoteGateway(t testing.T) *ConfigSnapshot { return testConfigSnapshotDiscoveryChain(t, "failover-through-double-remote-gateway") } func TestConfigSnapshotDiscoveryChainWithDoubleFailoverThroughRemoteGatewayTriggered(t testing.T) *ConfigSnapshot { return testConfigSnapshotDiscoveryChain(t, "failover-through-double-remote-gateway-triggered") } func TestConfigSnapshotDiscoveryChainWithFailoverThroughLocalGateway(t testing.T) *ConfigSnapshot { return testConfigSnapshotDiscoveryChain(t, "failover-through-local-gateway") } func TestConfigSnapshotDiscoveryChainWithFailoverThroughLocalGatewayTriggered(t testing.T) *ConfigSnapshot { return testConfigSnapshotDiscoveryChain(t, "failover-through-local-gateway-triggered") } func TestConfigSnapshotDiscoveryChainWithDoubleFailoverThroughLocalGateway(t testing.T) *ConfigSnapshot { return testConfigSnapshotDiscoveryChain(t, "failover-through-double-local-gateway") } func TestConfigSnapshotDiscoveryChainWithDoubleFailoverThroughLocalGatewayTriggered(t testing.T) *ConfigSnapshot { return testConfigSnapshotDiscoveryChain(t, "failover-through-double-local-gateway-triggered") } func TestConfigSnapshotDiscoveryChain_SplitterWithResolverRedirectMultiDC(t testing.T) *ConfigSnapshot { return testConfigSnapshotDiscoveryChain(t, "splitter-with-resolver-redirect-multidc") } func TestConfigSnapshotDiscoveryChainWithEntries(t testing.T, additionalEntries ...structs.ConfigEntry) *ConfigSnapshot { return testConfigSnapshotDiscoveryChain(t, "simple", additionalEntries...) } func TestConfigSnapshotDiscoveryChainDefault(t testing.T) *ConfigSnapshot { return testConfigSnapshotDiscoveryChain(t, "default") } func TestConfigSnapshotDiscoveryChainWithSplitter(t testing.T) *ConfigSnapshot { return testConfigSnapshotDiscoveryChain(t, "chain-and-splitter") } func TestConfigSnapshotDiscoveryChainWithGRPCRouter(t testing.T) *ConfigSnapshot { return testConfigSnapshotDiscoveryChain(t, "grpc-router") } func TestConfigSnapshotDiscoveryChainWithRouter(t testing.T) *ConfigSnapshot { return testConfigSnapshotDiscoveryChain(t, "chain-and-router") } func testConfigSnapshotDiscoveryChain(t testing.T, variation string, additionalEntries ...structs.ConfigEntry) *ConfigSnapshot { roots, leaf := TestCerts(t) snap := &ConfigSnapshot{ Kind: structs.ServiceKindConnectProxy, Service: "web-sidecar-proxy", ProxyID: structs.NewServiceID("web-sidecar-proxy", nil), Address: "0.0.0.0", Port: 9999, Proxy: structs.ConnectProxyConfig{ DestinationServiceID: "web", DestinationServiceName: "web", LocalServiceAddress: "127.0.0.1", LocalServicePort: 8080, Config: map[string]interface{}{ "foo": "bar", }, Upstreams: structs.TestUpstreams(t), }, Roots: roots, ConnectProxy: configSnapshotConnectProxy{ ConfigSnapshotUpstreams: setupTestVariationConfigEntriesAndSnapshot( t, variation, leaf, additionalEntries..., ), }, Datacenter: "dc1", } return snap } func setupTestVariationConfigEntriesAndSnapshot( t testing.T, variation string, leaf *structs.IssuedCert, additionalEntries ...structs.ConfigEntry, ) ConfigSnapshotUpstreams { // Compile a chain. var ( entries []structs.ConfigEntry compileSetup func(req *discoverychain.CompileRequest) ) switch variation { case "default": // no config entries case "simple-with-overrides": compileSetup = func(req *discoverychain.CompileRequest) { req.OverrideMeshGateway.Mode = structs.MeshGatewayModeLocal req.OverrideProtocol = "grpc" req.OverrideConnectTimeout = 66 * time.Second } fallthrough case "simple": entries = append(entries, &structs.ServiceResolverConfigEntry{ Kind: structs.ServiceResolver, Name: "db", ConnectTimeout: 33 * time.Second, }, ) case "external-sni": entries = append(entries, &structs.ServiceConfigEntry{ Kind: structs.ServiceDefaults, Name: "db", ExternalSNI: "db.some.other.service.mesh", }, &structs.ServiceResolverConfigEntry{ Kind: structs.ServiceResolver, Name: "db", ConnectTimeout: 33 * time.Second, }, ) case "failover": entries = append(entries, &structs.ServiceResolverConfigEntry{ Kind: structs.ServiceResolver, Name: "db", ConnectTimeout: 33 * time.Second, Failover: map[string]structs.ServiceResolverFailover{ "*": { Service: "fail", }, }, }, ) case "failover-through-remote-gateway-triggered": fallthrough case "failover-through-remote-gateway": entries = append(entries, &structs.ServiceConfigEntry{ Kind: structs.ServiceDefaults, Name: "db", MeshGateway: structs.MeshGatewayConfig{ Mode: structs.MeshGatewayModeRemote, }, }, &structs.ServiceResolverConfigEntry{ Kind: structs.ServiceResolver, Name: "db", ConnectTimeout: 33 * time.Second, Failover: map[string]structs.ServiceResolverFailover{ "*": { Datacenters: []string{"dc2"}, }, }, }, ) case "failover-through-double-remote-gateway-triggered": fallthrough case "failover-through-double-remote-gateway": entries = append(entries, &structs.ServiceConfigEntry{ Kind: structs.ServiceDefaults, Name: "db", MeshGateway: structs.MeshGatewayConfig{ Mode: structs.MeshGatewayModeRemote, }, }, &structs.ServiceResolverConfigEntry{ Kind: structs.ServiceResolver, Name: "db", ConnectTimeout: 33 * time.Second, Failover: map[string]structs.ServiceResolverFailover{ "*": { Datacenters: []string{"dc2", "dc3"}, }, }, }, ) case "failover-through-local-gateway-triggered": fallthrough case "failover-through-local-gateway": entries = append(entries, &structs.ServiceConfigEntry{ Kind: structs.ServiceDefaults, Name: "db", MeshGateway: structs.MeshGatewayConfig{ Mode: structs.MeshGatewayModeLocal, }, }, &structs.ServiceResolverConfigEntry{ Kind: structs.ServiceResolver, Name: "db", ConnectTimeout: 33 * time.Second, Failover: map[string]structs.ServiceResolverFailover{ "*": { Datacenters: []string{"dc2"}, }, }, }, ) case "failover-through-double-local-gateway-triggered": fallthrough case "failover-through-double-local-gateway": entries = append(entries, &structs.ServiceConfigEntry{ Kind: structs.ServiceDefaults, Name: "db", MeshGateway: structs.MeshGatewayConfig{ Mode: structs.MeshGatewayModeLocal, }, }, &structs.ServiceResolverConfigEntry{ Kind: structs.ServiceResolver, Name: "db", ConnectTimeout: 33 * time.Second, Failover: map[string]structs.ServiceResolverFailover{ "*": { Datacenters: []string{"dc2", "dc3"}, }, }, }, ) case "splitter-with-resolver-redirect-multidc": entries = append(entries, &structs.ProxyConfigEntry{ Kind: structs.ProxyDefaults, Name: structs.ProxyConfigGlobal, Config: map[string]interface{}{ "protocol": "http", }, }, &structs.ServiceSplitterConfigEntry{ Kind: structs.ServiceResolver, Name: "db", Splits: []structs.ServiceSplit{ {Weight: 50, Service: "db-dc1"}, {Weight: 50, Service: "db-dc2"}, }, }, &structs.ServiceResolverConfigEntry{ Kind: structs.ServiceResolver, Name: "db-dc1", Redirect: &structs.ServiceResolverRedirect{ Service: "db", ServiceSubset: "v1", Datacenter: "dc1", }, }, &structs.ServiceResolverConfigEntry{ Kind: structs.ServiceResolver, Name: "db-dc2", Redirect: &structs.ServiceResolverRedirect{ Service: "db", ServiceSubset: "v2", Datacenter: "dc2", }, }, &structs.ServiceResolverConfigEntry{ Kind: structs.ServiceResolver, Name: "db", Subsets: map[string]structs.ServiceResolverSubset{ "v1": structs.ServiceResolverSubset{ Filter: "Service.Meta.version == v1", }, "v2": structs.ServiceResolverSubset{ Filter: "Service.Meta.version == v2", }, }, }, ) case "chain-and-splitter": entries = append(entries, &structs.ServiceResolverConfigEntry{ Kind: structs.ServiceResolver, Name: "db", ConnectTimeout: 33 * time.Second, }, &structs.ProxyConfigEntry{ Kind: structs.ProxyDefaults, Name: structs.ProxyConfigGlobal, Config: map[string]interface{}{ "protocol": "http", }, }, &structs.ServiceSplitterConfigEntry{ Kind: structs.ServiceSplitter, Name: "db", Splits: []structs.ServiceSplit{ {Weight: 95.5, Service: "big-side"}, {Weight: 4, Service: "goldilocks-side"}, {Weight: 0.5, Service: "lil-bit-side"}, }, }, ) case "grpc-router": entries = append(entries, &structs.ServiceResolverConfigEntry{ Kind: structs.ServiceResolver, Name: "db", ConnectTimeout: 33 * time.Second, }, &structs.ProxyConfigEntry{ Kind: structs.ProxyDefaults, Name: structs.ProxyConfigGlobal, Config: map[string]interface{}{ "protocol": "grpc", }, }, &structs.ServiceRouterConfigEntry{ Kind: structs.ServiceRouter, Name: "db", Routes: []structs.ServiceRoute{ { Match: &structs.ServiceRouteMatch{ HTTP: &structs.ServiceRouteHTTPMatch{ PathExact: "/fgrpc.PingServer/Ping", }, }, Destination: &structs.ServiceRouteDestination{ Service: "prefix", }, }, }, }, ) case "chain-and-router": entries = append(entries, &structs.ServiceResolverConfigEntry{ Kind: structs.ServiceResolver, Name: "db", ConnectTimeout: 33 * time.Second, }, &structs.ProxyConfigEntry{ Kind: structs.ProxyDefaults, Name: structs.ProxyConfigGlobal, Config: map[string]interface{}{ "protocol": "http", }, }, &structs.ServiceSplitterConfigEntry{ Kind: structs.ServiceSplitter, Name: "split-3-ways", Splits: []structs.ServiceSplit{ {Weight: 95.5, Service: "big-side"}, {Weight: 4, Service: "goldilocks-side"}, {Weight: 0.5, Service: "lil-bit-side"}, }, }, &structs.ServiceRouterConfigEntry{ Kind: structs.ServiceRouter, Name: "db", Routes: []structs.ServiceRoute{ { Match: httpMatch(&structs.ServiceRouteHTTPMatch{ PathPrefix: "/prefix", }), Destination: toService("prefix"), }, { Match: httpMatch(&structs.ServiceRouteHTTPMatch{ PathExact: "/exact", }), Destination: toService("exact"), }, { Match: httpMatch(&structs.ServiceRouteHTTPMatch{ PathRegex: "/regex", }), Destination: toService("regex"), }, { Match: httpMatchHeader(structs.ServiceRouteHTTPMatchHeader{ Name: "x-debug", Present: true, }), Destination: toService("hdr-present"), }, { Match: httpMatchHeader(structs.ServiceRouteHTTPMatchHeader{ Name: "x-debug", Present: true, Invert: true, }), Destination: toService("hdr-not-present"), }, { Match: httpMatchHeader(structs.ServiceRouteHTTPMatchHeader{ Name: "x-debug", Exact: "exact", }), Destination: toService("hdr-exact"), }, { Match: httpMatchHeader(structs.ServiceRouteHTTPMatchHeader{ Name: "x-debug", Prefix: "prefix", }), Destination: toService("hdr-prefix"), }, { Match: httpMatchHeader(structs.ServiceRouteHTTPMatchHeader{ Name: "x-debug", Suffix: "suffix", }), Destination: toService("hdr-suffix"), }, { Match: httpMatchHeader(structs.ServiceRouteHTTPMatchHeader{ Name: "x-debug", Regex: "regex", }), Destination: toService("hdr-regex"), }, { Match: httpMatch(&structs.ServiceRouteHTTPMatch{ Methods: []string{"GET", "PUT"}, }), Destination: toService("just-methods"), }, { Match: httpMatch(&structs.ServiceRouteHTTPMatch{ Header: []structs.ServiceRouteHTTPMatchHeader{ { Name: "x-debug", Exact: "exact", }, }, Methods: []string{"GET", "PUT"}, }), Destination: toService("hdr-exact-with-method"), }, { Match: httpMatchParam(structs.ServiceRouteHTTPMatchQueryParam{ Name: "secretparam1", Exact: "exact", }), Destination: toService("prm-exact"), }, { Match: httpMatchParam(structs.ServiceRouteHTTPMatchQueryParam{ Name: "secretparam2", Regex: "regex", }), Destination: toService("prm-regex"), }, { Match: httpMatchParam(structs.ServiceRouteHTTPMatchQueryParam{ Name: "secretparam3", Present: true, }), Destination: toService("prm-present"), }, { Match: nil, Destination: toService("nil-match"), }, { Match: &structs.ServiceRouteMatch{}, Destination: toService("empty-match-1"), }, { Match: &structs.ServiceRouteMatch{ HTTP: &structs.ServiceRouteHTTPMatch{}, }, Destination: toService("empty-match-2"), }, { Match: httpMatch(&structs.ServiceRouteHTTPMatch{ PathPrefix: "/prefix", }), Destination: &structs.ServiceRouteDestination{ Service: "prefix-rewrite-1", PrefixRewrite: "/", }, }, { Match: httpMatch(&structs.ServiceRouteHTTPMatch{ PathPrefix: "/prefix", }), Destination: &structs.ServiceRouteDestination{ Service: "prefix-rewrite-2", PrefixRewrite: "/nested/newlocation", }, }, { Match: httpMatch(&structs.ServiceRouteHTTPMatch{ PathPrefix: "/timeout", }), Destination: &structs.ServiceRouteDestination{ Service: "req-timeout", RequestTimeout: 33 * time.Second, }, }, { Match: httpMatch(&structs.ServiceRouteHTTPMatch{ PathPrefix: "/retry-connect", }), Destination: &structs.ServiceRouteDestination{ Service: "retry-connect", NumRetries: 15, RetryOnConnectFailure: true, }, }, { Match: httpMatch(&structs.ServiceRouteHTTPMatch{ PathPrefix: "/retry-codes", }), Destination: &structs.ServiceRouteDestination{ Service: "retry-codes", NumRetries: 15, RetryOnStatusCodes: []uint32{401, 409, 451}, }, }, { Match: httpMatch(&structs.ServiceRouteHTTPMatch{ PathPrefix: "/retry-both", }), Destination: &structs.ServiceRouteDestination{ Service: "retry-both", RetryOnConnectFailure: true, RetryOnStatusCodes: []uint32{401, 409, 451}, }, }, { Match: httpMatch(&structs.ServiceRouteHTTPMatch{ PathPrefix: "/split-3-ways", }), Destination: toService("split-3-ways"), }, }, }, ) default: t.Fatalf("unexpected variation: %q", variation) return ConfigSnapshotUpstreams{} } if len(additionalEntries) > 0 { entries = append(entries, additionalEntries...) } dbChain := discoverychain.TestCompileConfigEntries(t, "db", "default", "dc1", connect.TestClusterID+".consul", "dc1", compileSetup, entries...) snap := ConfigSnapshotUpstreams{ Leaf: leaf, DiscoveryChain: map[string]*structs.CompiledDiscoveryChain{ "db": dbChain, }, WatchedUpstreamEndpoints: map[string]map[string]structs.CheckServiceNodes{ "db": map[string]structs.CheckServiceNodes{ "db.default.dc1": TestUpstreamNodes(t), }, }, } switch variation { case "default": case "simple-with-overrides": case "simple": case "external-sni": case "failover": snap.WatchedUpstreamEndpoints["db"]["fail.default.dc1"] = TestUpstreamNodesAlternate(t) case "failover-through-remote-gateway-triggered": snap.WatchedUpstreamEndpoints["db"]["db.default.dc1"] = TestUpstreamNodesInStatus(t, "critical") fallthrough case "failover-through-remote-gateway": snap.WatchedUpstreamEndpoints["db"]["db.default.dc2"] = TestUpstreamNodesDC2(t) snap.WatchedGatewayEndpoints = map[string]map[string]structs.CheckServiceNodes{ "db": map[string]structs.CheckServiceNodes{ "dc2": TestGatewayNodesDC2(t), }, } case "failover-through-double-remote-gateway-triggered": snap.WatchedUpstreamEndpoints["db"]["db.default.dc1"] = TestUpstreamNodesInStatus(t, "critical") snap.WatchedUpstreamEndpoints["db"]["db.default.dc2"] = TestUpstreamNodesInStatusDC2(t, "critical") fallthrough case "failover-through-double-remote-gateway": snap.WatchedUpstreamEndpoints["db"]["db.default.dc3"] = TestUpstreamNodesDC2(t) snap.WatchedGatewayEndpoints = map[string]map[string]structs.CheckServiceNodes{ "db": map[string]structs.CheckServiceNodes{ "dc2": TestGatewayNodesDC2(t), "dc3": TestGatewayNodesDC3(t), }, } case "failover-through-local-gateway-triggered": snap.WatchedUpstreamEndpoints["db"]["db.default.dc1"] = TestUpstreamNodesInStatus(t, "critical") fallthrough case "failover-through-local-gateway": snap.WatchedUpstreamEndpoints["db"]["db.default.dc2"] = TestUpstreamNodesDC2(t) snap.WatchedGatewayEndpoints = map[string]map[string]structs.CheckServiceNodes{ "db": map[string]structs.CheckServiceNodes{ "dc1": TestGatewayNodesDC1(t), }, } case "failover-through-double-local-gateway-triggered": snap.WatchedUpstreamEndpoints["db"]["db.default.dc1"] = TestUpstreamNodesInStatus(t, "critical") snap.WatchedUpstreamEndpoints["db"]["db.default.dc2"] = TestUpstreamNodesInStatusDC2(t, "critical") fallthrough case "failover-through-double-local-gateway": snap.WatchedUpstreamEndpoints["db"]["db.default.dc3"] = TestUpstreamNodesDC2(t) snap.WatchedGatewayEndpoints = map[string]map[string]structs.CheckServiceNodes{ "db": map[string]structs.CheckServiceNodes{ "dc1": TestGatewayNodesDC1(t), }, } case "splitter-with-resolver-redirect-multidc": snap.WatchedUpstreamEndpoints["db"] = map[string]structs.CheckServiceNodes{ "v1.db.default.dc1": TestUpstreamNodes(t), "v2.db.default.dc2": TestUpstreamNodesDC2(t), } case "chain-and-splitter": case "grpc-router": case "chain-and-router": default: t.Fatalf("unexpected variation: %q", variation) return ConfigSnapshotUpstreams{} } return snap } func TestConfigSnapshotMeshGateway(t testing.T) *ConfigSnapshot { return testConfigSnapshotMeshGateway(t, true, false) } func TestConfigSnapshotMeshGatewayUsingFederationStates(t testing.T) *ConfigSnapshot { return testConfigSnapshotMeshGateway(t, true, true) } func TestConfigSnapshotMeshGatewayNoServices(t testing.T) *ConfigSnapshot { return testConfigSnapshotMeshGateway(t, false, false) } func testConfigSnapshotMeshGateway(t testing.T, populateServices bool, useFederationStates bool) *ConfigSnapshot { roots, _ := TestCerts(t) snap := &ConfigSnapshot{ Kind: structs.ServiceKindMeshGateway, Service: "mesh-gateway", ProxyID: structs.NewServiceID("mesh-gateway", nil), Address: "1.2.3.4", Port: 8443, Proxy: structs.ConnectProxyConfig{ Config: map[string]interface{}{}, }, TaggedAddresses: map[string]structs.ServiceAddress{ structs.TaggedAddressLAN: structs.ServiceAddress{ Address: "1.2.3.4", Port: 8443, }, structs.TaggedAddressWAN: structs.ServiceAddress{ Address: "198.18.0.1", Port: 443, }, }, Roots: roots, Datacenter: "dc1", MeshGateway: configSnapshotMeshGateway{ WatchedServicesSet: true, }, } if populateServices { snap.MeshGateway = configSnapshotMeshGateway{ WatchedServices: map[structs.ServiceID]context.CancelFunc{ structs.NewServiceID("foo", nil): nil, structs.NewServiceID("bar", nil): nil, }, WatchedServicesSet: true, WatchedDatacenters: map[string]context.CancelFunc{ "dc2": nil, }, ServiceGroups: map[structs.ServiceID]structs.CheckServiceNodes{ structs.NewServiceID("foo", nil): TestGatewayServiceGroupFooDC1(t), structs.NewServiceID("bar", nil): TestGatewayServiceGroupBarDC1(t), }, GatewayGroups: map[string]structs.CheckServiceNodes{ "dc2": TestGatewayNodesDC2(t), }, } if useFederationStates { snap.MeshGateway.FedStateGateways = map[string]structs.CheckServiceNodes{ "dc2": TestGatewayNodesDC2(t), } delete(snap.MeshGateway.GatewayGroups, "dc2") } } return snap } func TestConfigSnapshotIngress(t testing.T) *ConfigSnapshot { return testConfigSnapshotIngressGateway(t, true, "simple") } func TestConfigSnapshotIngressWithOverrides(t testing.T) *ConfigSnapshot { return testConfigSnapshotIngressGateway(t, true, "simple-with-overrides") } func TestConfigSnapshotIngress_SplitterWithResolverRedirectMultiDC(t testing.T) *ConfigSnapshot { return testConfigSnapshotIngressGateway(t, true, "splitter-with-resolver-redirect-multidc") } func TestConfigSnapshotIngressExternalSNI(t testing.T) *ConfigSnapshot { return testConfigSnapshotIngressGateway(t, true, "external-sni") } func TestConfigSnapshotIngressWithFailover(t testing.T) *ConfigSnapshot { return testConfigSnapshotIngressGateway(t, true, "failover") } func TestConfigSnapshotIngressWithFailoverThroughRemoteGateway(t testing.T) *ConfigSnapshot { return testConfigSnapshotIngressGateway(t, true, "failover-through-remote-gateway") } func TestConfigSnapshotIngressWithFailoverThroughRemoteGatewayTriggered(t testing.T) *ConfigSnapshot { return testConfigSnapshotIngressGateway(t, true, "failover-through-remote-gateway-triggered") } func TestConfigSnapshotIngressWithDoubleFailoverThroughRemoteGateway(t testing.T) *ConfigSnapshot { return testConfigSnapshotIngressGateway(t, true, "failover-through-double-remote-gateway") } func TestConfigSnapshotIngressWithDoubleFailoverThroughRemoteGatewayTriggered(t testing.T) *ConfigSnapshot { return testConfigSnapshotIngressGateway(t, true, "failover-through-double-remote-gateway-triggered") } func TestConfigSnapshotIngressWithFailoverThroughLocalGateway(t testing.T) *ConfigSnapshot { return testConfigSnapshotIngressGateway(t, true, "failover-through-local-gateway") } func TestConfigSnapshotIngressWithFailoverThroughLocalGatewayTriggered(t testing.T) *ConfigSnapshot { return testConfigSnapshotIngressGateway(t, true, "failover-through-local-gateway-triggered") } func TestConfigSnapshotIngressWithDoubleFailoverThroughLocalGateway(t testing.T) *ConfigSnapshot { return testConfigSnapshotIngressGateway(t, true, "failover-through-double-local-gateway") } func TestConfigSnapshotIngressWithDoubleFailoverThroughLocalGatewayTriggered(t testing.T) *ConfigSnapshot { return testConfigSnapshotIngressGateway(t, true, "failover-through-double-local-gateway-triggered") } func TestConfigSnapshotIngressWithSplitter(t testing.T) *ConfigSnapshot { return testConfigSnapshotIngressGateway(t, true, "chain-and-splitter") } func TestConfigSnapshotIngressWithGRPCRouter(t testing.T) *ConfigSnapshot { return testConfigSnapshotIngressGateway(t, true, "grpc-router") } func TestConfigSnapshotIngressWithRouter(t testing.T) *ConfigSnapshot { return testConfigSnapshotIngressGateway(t, true, "chain-and-router") } func TestConfigSnapshotIngressGateway(t testing.T) *ConfigSnapshot { return testConfigSnapshotIngressGateway(t, true, "default") } func TestConfigSnapshotIngressGatewayNoServices(t testing.T) *ConfigSnapshot { return testConfigSnapshotIngressGateway(t, false, "default") } func TestConfigSnapshotIngressDiscoveryChainWithEntries(t testing.T, additionalEntries ...structs.ConfigEntry) *ConfigSnapshot { return testConfigSnapshotIngressGateway(t, true, "simple", additionalEntries...) } func testConfigSnapshotIngressGateway( t testing.T, populateServices bool, variation string, additionalEntries ...structs.ConfigEntry, ) *ConfigSnapshot { roots, leaf := TestCerts(t) snap := &ConfigSnapshot{ Kind: structs.ServiceKindIngressGateway, Service: "ingress-gateway", ProxyID: structs.NewServiceID("ingress-gateway", nil), Address: "1.2.3.4", Roots: roots, Datacenter: "dc1", } if populateServices { snap.IngressGateway = configSnapshotIngressGateway{ ConfigSnapshotUpstreams: setupTestVariationConfigEntriesAndSnapshot( t, variation, leaf, additionalEntries..., ), Upstreams: structs.Upstreams{ { // We rely on this one having default type in a few tests... DestinationName: "db", LocalBindPort: 9191, LocalBindAddress: "2.3.4.5", }, }, } } return snap } func TestConfigSnapshotExposeConfig(t testing.T) *ConfigSnapshot { return &ConfigSnapshot{ Kind: structs.ServiceKindConnectProxy, Service: "web-proxy", ProxyID: structs.NewServiceID("web-proxy", nil), Address: "1.2.3.4", Port: 8080, Proxy: structs.ConnectProxyConfig{ DestinationServiceName: "web", DestinationServiceID: "web", LocalServicePort: 8080, Expose: structs.ExposeConfig{ Checks: false, Paths: []structs.ExposePath{ { LocalPathPort: 8080, Path: "/health1", ListenerPort: 21500, }, { LocalPathPort: 8080, Path: "/health2", ListenerPort: 21501, }, }, }, }, Datacenter: "dc1", } } func TestConfigSnapshotTerminatingGateway(t testing.T) *ConfigSnapshot { return testConfigSnapshotTerminatingGateway(t, true) } func TestConfigSnapshotTerminatingGatewayNoServices(t testing.T) *ConfigSnapshot { return testConfigSnapshotTerminatingGateway(t, false) } func testConfigSnapshotTerminatingGateway(t testing.T, populateServices bool) *ConfigSnapshot { roots, _ := TestCerts(t) snap := &ConfigSnapshot{ Kind: structs.ServiceKindTerminatingGateway, Service: "terminating-gateway", ProxyID: structs.NewServiceID("terminating-gateway", nil), Address: "1.2.3.4", TaggedAddresses: map[string]structs.ServiceAddress{ structs.TaggedAddressWAN: structs.ServiceAddress{ Address: "198.18.0.1", Port: 443, }, }, Port: 8443, Roots: roots, Datacenter: "dc1", } if populateServices { web := structs.NewServiceID("web", nil) webNodes := TestUpstreamNodes(t) webNodes[0].Service.Meta = map[string]string{ "version": "1", } webNodes[1].Service.Meta = map[string]string{ "version": "2", } api := structs.NewServiceID("api", nil) apiNodes := TestUpstreamNodes(t) for i := 0; i < len(apiNodes); i++ { apiNodes[i].Service.Service = "api" apiNodes[i].Service.Port = 8081 } snap.TerminatingGateway = configSnapshotTerminatingGateway{ ServiceGroups: map[structs.ServiceID]structs.CheckServiceNodes{ web: webNodes, api: apiNodes, }, GatewayServices: map[structs.ServiceID]structs.GatewayService{ web: { Service: web, CAFile: "ca.cert.pem", }, api: { Service: api, CAFile: "ca.cert.pem", CertFile: "api.cert.pem", KeyFile: "api.key.pem", }, }, } snap.TerminatingGateway.ServiceLeaves = map[structs.ServiceID]*structs.IssuedCert{ structs.NewServiceID("web", nil): { CertPEM: golden(t, "test-leaf-cert"), PrivateKeyPEM: golden(t, "test-leaf-key"), }, structs.NewServiceID("api", nil): { CertPEM: golden(t, "alt-test-leaf-cert"), PrivateKeyPEM: golden(t, "alt-test-leaf-key"), }, } } return snap } func TestConfigSnapshotGRPCExposeHTTP1(t testing.T) *ConfigSnapshot { return &ConfigSnapshot{ Kind: structs.ServiceKindConnectProxy, Service: "grpc-proxy", ProxyID: structs.NewServiceID("grpc-proxy", nil), Address: "1.2.3.4", Port: 8080, Proxy: structs.ConnectProxyConfig{ DestinationServiceName: "grpc", DestinationServiceID: "grpc", LocalServicePort: 8080, Config: map[string]interface{}{ "protocol": "grpc", }, Expose: structs.ExposeConfig{ Checks: false, Paths: []structs.ExposePath{ { LocalPathPort: 8090, Path: "/healthz", ListenerPort: 21500, Protocol: "http", }, }, }, }, Datacenter: "dc1", } } func httpMatch(http *structs.ServiceRouteHTTPMatch) *structs.ServiceRouteMatch { return &structs.ServiceRouteMatch{HTTP: http} } func httpMatchHeader(headers ...structs.ServiceRouteHTTPMatchHeader) *structs.ServiceRouteMatch { return httpMatch(&structs.ServiceRouteHTTPMatch{ Header: headers, }) } func httpMatchParam(params ...structs.ServiceRouteHTTPMatchQueryParam) *structs.ServiceRouteMatch { return httpMatch(&structs.ServiceRouteHTTPMatch{ QueryParam: params, }) } func toService(svc string) *structs.ServiceRouteDestination { return &structs.ServiceRouteDestination{Service: svc} } // ControllableCacheType is a cache.Type that simulates a typical blocking RPC // but lets us control the responses and when they are delivered easily. type ControllableCacheType struct { index uint64 value sync.Map // Need a condvar to trigger all blocking requests (there might be multiple // for same type due to background refresh and timing issues) when values // change. Chans make it nondeterministic which one triggers or need extra // locking to coordinate replacing after close etc. triggerMu sync.Mutex trigger *sync.Cond blocking bool lastReq atomic.Value } // NewControllableCacheType returns a cache.Type that can be controlled for // testing. func NewControllableCacheType(t testing.T) *ControllableCacheType { c := &ControllableCacheType{ index: 5, blocking: true, } c.trigger = sync.NewCond(&c.triggerMu) return c } // Set sets the response value to be returned from subsequent cache gets for the // type. func (ct *ControllableCacheType) Set(key string, value interface{}) { atomic.AddUint64(&ct.index, 1) ct.value.Store(key, value) ct.triggerMu.Lock() ct.trigger.Broadcast() ct.triggerMu.Unlock() } // Fetch implements cache.Type. It simulates blocking or non-blocking queries. func (ct *ControllableCacheType) Fetch(opts cache.FetchOptions, req cache.Request) (cache.FetchResult, error) { index := atomic.LoadUint64(&ct.index) ct.lastReq.Store(req) shouldBlock := ct.blocking && opts.MinIndex > 0 && opts.MinIndex == index if shouldBlock { // Wait for return to be triggered. We ignore timeouts based on opts.Timeout // since in practice they will always be way longer than our tests run for // and the caller can simulate timeout by triggering return without changing // index or value. ct.triggerMu.Lock() ct.trigger.Wait() ct.triggerMu.Unlock() } info := req.CacheInfo() key := path.Join(info.Key, info.Datacenter) // omit token for testing purposes // reload index as it probably got bumped index = atomic.LoadUint64(&ct.index) val, _ := ct.value.Load(key) if err, ok := val.(error); ok { return cache.FetchResult{ Value: nil, Index: index, }, err } return cache.FetchResult{ Value: val, Index: index, }, nil } func (ct *ControllableCacheType) RegisterOptions() cache.RegisterOptions { return cache.RegisterOptions{ Refresh: ct.blocking, SupportsBlocking: ct.blocking, RefreshTimeout: 10 * time.Minute, } } // golden is used to read golden files stores in consul/agent/xds/testdata func golden(t testing.T, name string) string { t.Helper() golden := filepath.Join("../xds/testdata", name+".golden") expected, err := ioutil.ReadFile(golden) require.NoError(t, err) return string(expected) }