open-consul/agent/xds/clusters_test.go

811 lines
25 KiB
Go

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/cache"
"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) {
if testing.Short() {
t.Skip("too slow for testing.Short")
}
tests := []struct {
name string
create func(t testinf.T) *proxycfg.ConfigSnapshot
overrideGoldenName string
}{
{
name: "defaults",
create: func(t testinf.T) *proxycfg.ConfigSnapshot {
return proxycfg.TestConfigSnapshot(t, nil, nil)
},
},
{
name: "connect-proxy-with-tls-outgoing-min-version-auto",
create: func(t testinf.T) *proxycfg.ConfigSnapshot {
return proxycfg.TestConfigSnapshot(t, nil, []cache.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, []cache.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, []cache.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, []cache.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-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, []cache.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, []cache.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, []cache.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-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-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",
create: proxycfg.TestConfigSnapshotTransparentProxy,
},
{
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, 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")
}
}
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)
}