package xds import ( "bytes" "path/filepath" "sort" "testing" "text/template" envoy_cluster_v3 "github.com/envoyproxy/go-control-plane/envoy/config/cluster/v3" "github.com/golang/protobuf/ptypes/wrappers" testinf "github.com/mitchellh/go-testing-interface" "github.com/stretchr/testify/require" "github.com/hashicorp/consul/agent/proxycfg" "github.com/hashicorp/consul/agent/structs" "github.com/hashicorp/consul/agent/xds/proxysupport" "github.com/hashicorp/consul/agent/xds/xdscommon" "github.com/hashicorp/consul/sdk/testutil" "github.com/hashicorp/consul/types" ) func TestClustersFromSnapshot(t *testing.T) { // TODO: we should move all of these to TestAllResourcesFromSnapshot // eventually to test all of the xDS types at once with the same input, // just as it would be triggered by our xDS server. if testing.Short() { t.Skip("too slow for testing.Short") } tests := []struct { name string create func(t testinf.T) *proxycfg.ConfigSnapshot overrideGoldenName string }{ { name: "connect-proxy-with-tls-outgoing-min-version-auto", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshot(t, nil, []proxycfg.UpdateEvent{ { CorrelationID: "mesh", Result: &structs.ConfigEntryResponse{ Entry: &structs.MeshConfigEntry{ TLS: &structs.MeshTLSConfig{ Outgoing: &structs.MeshDirectionalTLSConfig{ TLSMinVersion: types.TLSVersionAuto, }, }, }, }, }, }) }, }, { name: "connect-proxy-with-tls-outgoing-min-version", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshot(t, nil, []proxycfg.UpdateEvent{ { CorrelationID: "mesh", Result: &structs.ConfigEntryResponse{ Entry: &structs.MeshConfigEntry{ TLS: &structs.MeshTLSConfig{ Outgoing: &structs.MeshDirectionalTLSConfig{ TLSMinVersion: types.TLSv1_3, }, }, }, }, }, }) }, }, { name: "connect-proxy-with-tls-outgoing-max-version", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshot(t, nil, []proxycfg.UpdateEvent{ { CorrelationID: "mesh", Result: &structs.ConfigEntryResponse{ Entry: &structs.MeshConfigEntry{ TLS: &structs.MeshTLSConfig{ Outgoing: &structs.MeshDirectionalTLSConfig{ TLSMaxVersion: types.TLSv1_2, }, }, }, }, }, }) }, }, { name: "connect-proxy-with-tls-outgoing-cipher-suites", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshot(t, nil, []proxycfg.UpdateEvent{ { CorrelationID: "mesh", Result: &structs.ConfigEntryResponse{ Entry: &structs.MeshConfigEntry{ TLS: &structs.MeshTLSConfig{ Outgoing: &structs.MeshDirectionalTLSConfig{ CipherSuites: []types.TLSCipherSuite{ types.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, types.TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256, }, }, }, }, }, }, }) }, }, { name: "custom-local-app", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshot(t, func(ns *structs.NodeService) { ns.Proxy.Config["envoy_local_cluster_json"] = customAppClusterJSON(t, customClusterJSONOptions{ Name: "mylocal", }) }, nil) }, }, { name: "custom-upstream", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshot(t, func(ns *structs.NodeService) { ns.Proxy.Upstreams[0].Config["envoy_cluster_json"] = customAppClusterJSON(t, customClusterJSONOptions{ Name: "myservice", }) }, nil) }, }, { name: "custom-upstream-default-chain", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotDiscoveryChain(t, "default", func(ns *structs.NodeService) { ns.Proxy.Upstreams[0].Config["envoy_cluster_json"] = customAppClusterJSON(t, customClusterJSONOptions{ Name: "myservice", }) }, nil) }, }, { name: "custom-upstream-ignores-tls", overrideGoldenName: "custom-upstream", // should be the same create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshot(t, func(ns *structs.NodeService) { ns.Proxy.Upstreams[0].Config["envoy_cluster_json"] = customAppClusterJSON(t, customClusterJSONOptions{ Name: "myservice", // Attempt to override the TLS context should be ignored TLSContext: `"allowRenegotiation": false`, }) }, nil) }, }, { name: "custom-timeouts", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshot(t, func(ns *structs.NodeService) { ns.Proxy.Config["local_connect_timeout_ms"] = 1234 ns.Proxy.Upstreams[0].Config["connect_timeout_ms"] = 2345 }, nil) }, }, { name: "custom-passive-healthcheck", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshot(t, func(ns *structs.NodeService) { ns.Proxy.Upstreams[0].Config["passive_health_check"] = map[string]interface{}{ "enforcing_consecutive_5xx": float64(80), "max_failures": float64(5), "interval": float64(10), } }, nil) }, }, { name: "custom-max-inbound-connections", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshot(t, func(ns *structs.NodeService) { ns.Proxy.Config["max_inbound_connections"] = 3456 }, nil) }, }, { name: "custom-limits-max-connections-only", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshot(t, func(ns *structs.NodeService) { for i := range ns.Proxy.Upstreams { // We check if Config is nil because the prepared_query upstream is // initialized without a Config map. Use Upstreams[i] syntax to // modify the actual ConfigSnapshot instead of copying the Upstream // in the range. if ns.Proxy.Upstreams[i].Config == nil { ns.Proxy.Upstreams[i].Config = map[string]interface{}{} } ns.Proxy.Upstreams[i].Config["limits"] = map[string]interface{}{ "max_connections": 500, } } }, nil) }, }, { name: "custom-limits-set-to-zero", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshot(t, func(ns *structs.NodeService) { for i := range ns.Proxy.Upstreams { if ns.Proxy.Upstreams[i].Config == nil { ns.Proxy.Upstreams[i].Config = map[string]interface{}{} } ns.Proxy.Upstreams[i].Config["limits"] = map[string]interface{}{ "max_connections": 0, "max_pending_requests": 0, "max_concurrent_requests": 0, } } }, nil) }, }, { name: "custom-limits", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshot(t, func(ns *structs.NodeService) { for i := range ns.Proxy.Upstreams { if ns.Proxy.Upstreams[i].Config == nil { ns.Proxy.Upstreams[i].Config = map[string]interface{}{} } ns.Proxy.Upstreams[i].Config["limits"] = map[string]interface{}{ "max_connections": 500, "max_pending_requests": 600, "max_concurrent_requests": 700, } } }, nil) }, }, { name: "connect-proxy-with-chain", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotDiscoveryChain(t, "simple", nil, nil) }, }, { name: "connect-proxy-with-chain-external-sni", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotDiscoveryChain(t, "external-sni", nil, nil) }, }, { name: "connect-proxy-with-chain-and-overrides", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotDiscoveryChain(t, "simple-with-overrides", nil, nil) }, }, { name: "connect-proxy-with-chain-and-failover", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotDiscoveryChain(t, "failover", nil, nil) }, }, { name: "connect-proxy-with-tcp-chain-failover-through-remote-gateway", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotDiscoveryChain(t, "failover-through-remote-gateway", nil, nil) }, }, { name: "connect-proxy-with-tcp-chain-failover-through-remote-gateway-triggered", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotDiscoveryChain(t, "failover-through-remote-gateway-triggered", nil, nil) }, }, { name: "connect-proxy-with-tcp-chain-double-failover-through-remote-gateway", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotDiscoveryChain(t, "failover-through-double-remote-gateway", nil, nil) }, }, { name: "connect-proxy-with-tcp-chain-double-failover-through-remote-gateway-triggered", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotDiscoveryChain(t, "failover-through-double-remote-gateway-triggered", nil, nil) }, }, { name: "connect-proxy-with-tcp-chain-failover-through-local-gateway", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotDiscoveryChain(t, "failover-through-local-gateway", nil, nil) }, }, { name: "connect-proxy-with-tcp-chain-failover-through-local-gateway-triggered", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotDiscoveryChain(t, "failover-through-local-gateway-triggered", nil, nil) }, }, { name: "connect-proxy-with-tcp-chain-double-failover-through-local-gateway", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotDiscoveryChain(t, "failover-through-double-local-gateway", nil, nil) }, }, { name: "connect-proxy-with-tcp-chain-double-failover-through-local-gateway-triggered", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotDiscoveryChain(t, "failover-through-double-local-gateway-triggered", nil, nil) }, }, { name: "splitter-with-resolver-redirect", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotDiscoveryChain(t, "splitter-with-resolver-redirect-multidc", nil, nil) }, }, { name: "connect-proxy-lb-in-resolver", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotDiscoveryChain(t, "lb-resolver", nil, nil) }, }, { name: "expose-paths-local-app-paths", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotExposeConfig(t, nil) }, }, { name: "downstream-service-with-unix-sockets", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshot(t, func(ns *structs.NodeService) { ns.Address = "" ns.Port = 0 ns.Proxy.LocalServiceAddress = "" ns.Proxy.LocalServicePort = 0 ns.Proxy.LocalServiceSocketPath = "/tmp/downstream_proxy.sock" }, nil) }, }, { name: "expose-paths-new-cluster-http2", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotExposeConfig(t, func(ns *structs.NodeService) { ns.Proxy.Expose.Paths[1] = structs.ExposePath{ LocalPathPort: 9090, Path: "/grpc.health.v1.Health/Check", ListenerPort: 21501, Protocol: "http2", } }) }, }, { name: "expose-paths-grpc-new-cluster-http1", create: proxycfg.TestConfigSnapshotGRPCExposeHTTP1, }, { name: "mesh-gateway", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotMeshGateway(t, "default", nil, nil) }, }, { name: "mesh-gateway-using-federation-states", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotMeshGateway(t, "federation-states", nil, nil) }, }, { name: "mesh-gateway-no-services", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotMeshGateway(t, "no-services", nil, nil) }, }, { name: "mesh-gateway-service-subsets", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotMeshGateway(t, "service-subsets", nil, nil) }, }, { name: "mesh-gateway-ignore-extra-resolvers", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotMeshGateway(t, "ignore-extra-resolvers", nil, nil) }, }, { name: "mesh-gateway-service-timeouts", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotMeshGateway(t, "service-timeouts", nil, nil) }, }, { name: "mesh-gateway-non-hash-lb-injected", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotMeshGateway(t, "non-hash-lb-injected", nil, nil) }, }, { name: "mesh-gateway-hash-lb-ignored", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotMeshGateway(t, "hash-lb-ignored", nil, nil) }, }, { name: "ingress-gateway", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotIngressGateway(t, true, "tcp", "default", nil, nil, nil) }, }, { name: "ingress-gateway-with-tls-outgoing-min-version", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotIngressGateway(t, true, "tcp", "default", nil, nil, []proxycfg.UpdateEvent{ { CorrelationID: "mesh", Result: &structs.ConfigEntryResponse{ Entry: &structs.MeshConfigEntry{ TLS: &structs.MeshTLSConfig{ Outgoing: &structs.MeshDirectionalTLSConfig{ TLSMinVersion: types.TLSv1_3, }, }, }, }, }, }) }, }, { name: "ingress-gateway-with-tls-outgoing-max-version", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotIngressGateway(t, true, "tcp", "default", nil, nil, []proxycfg.UpdateEvent{ { CorrelationID: "mesh", Result: &structs.ConfigEntryResponse{ Entry: &structs.MeshConfigEntry{ TLS: &structs.MeshTLSConfig{ Outgoing: &structs.MeshDirectionalTLSConfig{ TLSMaxVersion: types.TLSv1_2, }, }, }, }, }, }) }, }, { name: "ingress-gateway-with-tls-outgoing-cipher-suites", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotIngressGateway(t, true, "tcp", "default", nil, nil, []proxycfg.UpdateEvent{ { CorrelationID: "mesh", Result: &structs.ConfigEntryResponse{ Entry: &structs.MeshConfigEntry{ TLS: &structs.MeshTLSConfig{ Outgoing: &structs.MeshDirectionalTLSConfig{ CipherSuites: []types.TLSCipherSuite{ types.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, types.TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256, }, }, }, }, }, }, }) }, }, { name: "ingress-gateway-no-services", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotIngressGateway(t, false, "tcp", "default", nil, nil, nil) }, }, { name: "ingress-with-chain", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotIngressGateway(t, true, "tcp", "simple", nil, nil, nil) }, }, { name: "ingress-with-chain-external-sni", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotIngressGateway(t, true, "tcp", "external-sni", nil, nil, nil) }, }, { name: "ingress-with-chain-and-failover", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotIngressGateway(t, true, "tcp", "failover", nil, nil, nil) }, }, { name: "ingress-with-chain-and-failover-to-cluster-peer", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotIngressGateway(t, true, "tcp", "failover-to-cluster-peer", nil, nil, nil) }, }, { name: "ingress-with-tcp-chain-failover-through-remote-gateway", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotIngressGateway(t, true, "tcp", "failover-through-remote-gateway", nil, nil, nil) }, }, { name: "ingress-with-tcp-chain-failover-through-remote-gateway-triggered", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotIngressGateway(t, true, "tcp", "failover-through-remote-gateway-triggered", nil, nil, nil) }, }, { name: "ingress-with-tcp-chain-double-failover-through-remote-gateway", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotIngressGateway(t, true, "tcp", "failover-through-double-remote-gateway", nil, nil, nil) }, }, { name: "ingress-with-tcp-chain-double-failover-through-remote-gateway-triggered", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotIngressGateway(t, true, "tcp", "failover-through-double-remote-gateway-triggered", nil, nil, nil) }, }, { name: "ingress-with-tcp-chain-failover-through-local-gateway", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotIngressGateway(t, true, "tcp", "failover-through-local-gateway", nil, nil, nil) }, }, { name: "ingress-with-tcp-chain-failover-through-local-gateway-triggered", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotIngressGateway(t, true, "tcp", "failover-through-local-gateway-triggered", nil, nil, nil) }, }, { name: "ingress-with-tcp-chain-double-failover-through-local-gateway", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotIngressGateway(t, true, "tcp", "failover-through-double-local-gateway", nil, nil, nil) }, }, { name: "ingress-with-tcp-chain-double-failover-through-local-gateway-triggered", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotIngressGateway(t, true, "tcp", "failover-through-double-local-gateway-triggered", nil, nil, nil) }, }, { name: "ingress-splitter-with-resolver-redirect", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotIngressGateway(t, true, "http", "splitter-with-resolver-redirect-multidc", nil, nil, nil) }, }, { name: "ingress-lb-in-resolver", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotIngressGateway(t, true, "http", "lb-resolver", nil, nil, nil) }, }, { name: "terminating-gateway", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotTerminatingGateway(t, true, nil, nil) }, }, { name: "terminating-gateway-no-services", create: func(t testinf.T) *proxycfg.ConfigSnapshot { return proxycfg.TestConfigSnapshotTerminatingGateway(t, false, nil, nil) }, }, { name: "terminating-gateway-service-subsets", create: proxycfg.TestConfigSnapshotTerminatingGatewayServiceSubsetsWebAndCache, }, { name: "terminating-gateway-hostname-service-subsets", create: proxycfg.TestConfigSnapshotTerminatingGatewayHostnameSubsets, }, { name: "terminating-gateway-sni", create: proxycfg.TestConfigSnapshotTerminatingGatewaySNI, }, { name: "terminating-gateway-http2-upstream", create: proxycfg.TestConfigSnapshotTerminatingGatewayHTTP2, }, { name: "terminating-gateway-http2-upstream-subsets", create: proxycfg.TestConfigSnapshotTerminatingGatewaySubsetsHTTP2, }, { name: "terminating-gateway-ignore-extra-resolvers", create: proxycfg.TestConfigSnapshotTerminatingGatewayIgnoreExtraResolvers, }, { name: "terminating-gateway-lb-config", create: proxycfg.TestConfigSnapshotTerminatingGatewayLBConfigNoHashPolicies, }, { name: "ingress-multiple-listeners-duplicate-service", create: proxycfg.TestConfigSnapshotIngress_MultipleListenersDuplicateService, }, { name: "transparent-proxy-catalog-destinations-only", create: proxycfg.TestConfigSnapshotTransparentProxyCatalogDestinationsOnly, }, { name: "transparent-proxy-dial-instances-directly", create: proxycfg.TestConfigSnapshotTransparentProxyDialDirectly, }, } latestEnvoyVersion := proxysupport.EnvoyVersions[0] for _, envoyVersion := range proxysupport.EnvoyVersions { sf, err := determineSupportedProxyFeaturesFromString(envoyVersion) require.NoError(t, err) t.Run("envoy-"+envoyVersion, func(t *testing.T) { for _, tt := range tests { t.Run(tt.name, func(t *testing.T) { // Sanity check default with no overrides first snap := tt.create(t) // We need to replace the TLS certs with deterministic ones to make golden // files workable. Note we don't update these otherwise they'd change // golder files for every test case and so not be any use! setupTLSRootsAndLeaf(t, snap) // Need server just for logger dependency g := newResourceGenerator(testutil.Logger(t), nil, false) g.ProxyFeatures = sf clusters, err := g.clustersFromSnapshot(snap) require.NoError(t, err) sort.Slice(clusters, func(i, j int) bool { return clusters[i].(*envoy_cluster_v3.Cluster).Name < clusters[j].(*envoy_cluster_v3.Cluster).Name }) r, err := createResponse(xdscommon.ClusterType, "00000001", "00000001", clusters) require.NoError(t, err) t.Run("current", func(t *testing.T) { gotJSON := protoToJSON(t, r) gName := tt.name if tt.overrideGoldenName != "" { gName = tt.overrideGoldenName } require.JSONEq(t, goldenEnvoy(t, filepath.Join("clusters", gName), envoyVersion, latestEnvoyVersion, gotJSON), gotJSON) }) }) } }) } } type customClusterJSONOptions struct { Name string TLSContext string } var customAppClusterJSONTpl = `{ "@type": "type.googleapis.com/envoy.config.cluster.v3.Cluster", {{ if .TLSContext -}} "transport_socket": { "name": "tls", "typed_config": { "@type": "type.googleapis.com/envoy.extensions.transport_sockets.tls.v3.UpstreamTlsContext", {{ .TLSContext }} } }, {{- end }} "name": "{{ .Name }}", "connectTimeout": "15s", "loadAssignment": { "clusterName": "{{ .Name }}", "endpoints": [ { "lbEndpoints": [ { "endpoint": { "address": { "socketAddress": { "address": "127.0.0.1", "portValue": 8080 } } } } ] } ] } }` var customAppClusterJSONTemplate = template.Must(template.New("").Parse(customAppClusterJSONTpl)) func customAppClusterJSON(t testinf.T, opts customClusterJSONOptions) string { t.Helper() var buf bytes.Buffer err := customAppClusterJSONTemplate.Execute(&buf, opts) require.NoError(t, err) return buf.String() } func setupTLSRootsAndLeaf(t *testing.T, snap *proxycfg.ConfigSnapshot) { if snap.Leaf() != nil { switch snap.Kind { case structs.ServiceKindConnectProxy: snap.ConnectProxy.Leaf.CertPEM = loadTestResource(t, "test-leaf-cert") snap.ConnectProxy.Leaf.PrivateKeyPEM = loadTestResource(t, "test-leaf-key") case structs.ServiceKindIngressGateway: snap.IngressGateway.Leaf.CertPEM = loadTestResource(t, "test-leaf-cert") snap.IngressGateway.Leaf.PrivateKeyPEM = loadTestResource(t, "test-leaf-key") case structs.ServiceKindMeshGateway: snap.MeshGateway.Leaf.CertPEM = loadTestResource(t, "test-leaf-cert") snap.MeshGateway.Leaf.PrivateKeyPEM = loadTestResource(t, "test-leaf-key") } } if snap.Roots != nil { snap.Roots.Roots[0].RootCert = loadTestResource(t, "test-root-cert") } } func TestEnvoyLBConfig_InjectToCluster(t *testing.T) { var tests = []struct { name string lb *structs.LoadBalancer expected *envoy_cluster_v3.Cluster }{ { name: "skip empty", lb: &structs.LoadBalancer{ Policy: "", }, expected: &envoy_cluster_v3.Cluster{}, }, { name: "round robin", lb: &structs.LoadBalancer{ Policy: structs.LBPolicyRoundRobin, }, expected: &envoy_cluster_v3.Cluster{LbPolicy: envoy_cluster_v3.Cluster_ROUND_ROBIN}, }, { name: "random", lb: &structs.LoadBalancer{ Policy: structs.LBPolicyRandom, }, expected: &envoy_cluster_v3.Cluster{LbPolicy: envoy_cluster_v3.Cluster_RANDOM}, }, { name: "maglev", lb: &structs.LoadBalancer{ Policy: structs.LBPolicyMaglev, }, expected: &envoy_cluster_v3.Cluster{LbPolicy: envoy_cluster_v3.Cluster_MAGLEV}, }, { name: "ring_hash", lb: &structs.LoadBalancer{ Policy: structs.LBPolicyRingHash, RingHashConfig: &structs.RingHashConfig{ MinimumRingSize: 3, MaximumRingSize: 7, }, }, expected: &envoy_cluster_v3.Cluster{ LbPolicy: envoy_cluster_v3.Cluster_RING_HASH, LbConfig: &envoy_cluster_v3.Cluster_RingHashLbConfig_{ RingHashLbConfig: &envoy_cluster_v3.Cluster_RingHashLbConfig{ MinimumRingSize: &wrappers.UInt64Value{Value: 3}, MaximumRingSize: &wrappers.UInt64Value{Value: 7}, }, }, }, }, { name: "least_request", lb: &structs.LoadBalancer{ Policy: "least_request", LeastRequestConfig: &structs.LeastRequestConfig{ ChoiceCount: 3, }, }, expected: &envoy_cluster_v3.Cluster{ LbPolicy: envoy_cluster_v3.Cluster_LEAST_REQUEST, LbConfig: &envoy_cluster_v3.Cluster_LeastRequestLbConfig_{ LeastRequestLbConfig: &envoy_cluster_v3.Cluster_LeastRequestLbConfig{ ChoiceCount: &wrappers.UInt32Value{Value: 3}, }, }, }, }, } for _, tc := range tests { t.Run(tc.name, func(t *testing.T) { var c envoy_cluster_v3.Cluster err := injectLBToCluster(tc.lb, &c) require.NoError(t, err) require.Equal(t, tc.expected, &c) }) } } // UID is just a convenience function to aid in writing tests less verbosely. func UID(input string) proxycfg.UpstreamID { return proxycfg.UpstreamIDFromString(input) }