540 lines
14 KiB
Go
540 lines
14 KiB
Go
package xds
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import (
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"path/filepath"
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"sort"
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"testing"
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"time"
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envoy "github.com/envoyproxy/go-control-plane/envoy/api/v2"
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envoyroute "github.com/envoyproxy/go-control-plane/envoy/api/v2/route"
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"github.com/golang/protobuf/ptypes"
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testinf "github.com/mitchellh/go-testing-interface"
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"github.com/stretchr/testify/require"
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"github.com/hashicorp/consul/agent/connect"
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"github.com/hashicorp/consul/agent/consul/discoverychain"
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"github.com/hashicorp/consul/agent/proxycfg"
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"github.com/hashicorp/consul/agent/structs"
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"github.com/hashicorp/consul/agent/xds/proxysupport"
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"github.com/hashicorp/consul/sdk/testutil"
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)
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func TestRoutesFromSnapshot(t *testing.T) {
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tests := []struct {
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name string
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create func(t testinf.T) *proxycfg.ConfigSnapshot
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// Setup is called before the test starts. It is passed the snapshot from
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// create func and is allowed to modify it in any way to setup the
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// test input.
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setup func(snap *proxycfg.ConfigSnapshot)
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overrideGoldenName string
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}{
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{
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name: "defaults-no-chain",
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create: proxycfg.TestConfigSnapshot,
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setup: nil, // Default snapshot
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},
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{
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name: "connect-proxy-with-chain",
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create: proxycfg.TestConfigSnapshotDiscoveryChain,
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setup: nil,
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},
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{
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name: "connect-proxy-with-chain-external-sni",
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create: proxycfg.TestConfigSnapshotDiscoveryChainExternalSNI,
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setup: nil,
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},
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{
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name: "connect-proxy-with-chain-and-overrides",
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create: proxycfg.TestConfigSnapshotDiscoveryChainWithOverrides,
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setup: nil,
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},
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{
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name: "splitter-with-resolver-redirect",
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create: proxycfg.TestConfigSnapshotDiscoveryChain_SplitterWithResolverRedirectMultiDC,
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setup: nil,
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},
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{
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name: "connect-proxy-with-chain-and-splitter",
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create: proxycfg.TestConfigSnapshotDiscoveryChainWithSplitter,
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setup: nil,
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},
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{
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name: "connect-proxy-with-grpc-router",
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create: proxycfg.TestConfigSnapshotDiscoveryChainWithGRPCRouter,
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setup: nil,
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},
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{
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name: "connect-proxy-with-chain-and-router",
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create: proxycfg.TestConfigSnapshotDiscoveryChainWithRouter,
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setup: nil,
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},
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{
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name: "connect-proxy-lb-in-resolver",
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create: proxycfg.TestConfigSnapshotDiscoveryChainWithLB,
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setup: nil,
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},
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// TODO(rb): test match stanza skipped for grpc
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// Start ingress gateway test cases
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{
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name: "ingress-defaults-no-chain",
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create: proxycfg.TestConfigSnapshotIngressGateway,
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setup: nil, // Default snapshot
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},
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{
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name: "ingress-with-chain",
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create: proxycfg.TestConfigSnapshotIngress,
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setup: nil,
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},
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{
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name: "ingress-with-chain-external-sni",
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create: proxycfg.TestConfigSnapshotIngressExternalSNI,
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setup: nil,
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},
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{
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name: "ingress-with-chain-and-overrides",
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create: proxycfg.TestConfigSnapshotIngressWithOverrides,
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setup: nil,
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},
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{
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name: "ingress-splitter-with-resolver-redirect",
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create: proxycfg.TestConfigSnapshotIngress_SplitterWithResolverRedirectMultiDC,
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setup: nil,
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},
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{
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name: "ingress-with-chain-and-splitter",
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create: proxycfg.TestConfigSnapshotIngressWithSplitter,
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setup: nil,
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},
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{
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name: "ingress-with-grpc-router",
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create: proxycfg.TestConfigSnapshotIngressWithGRPCRouter,
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setup: nil,
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},
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{
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name: "ingress-with-chain-and-router",
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create: proxycfg.TestConfigSnapshotIngressWithRouter,
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setup: nil,
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},
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{
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name: "ingress-lb-in-resolver",
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create: proxycfg.TestConfigSnapshotIngressWithLB,
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setup: nil,
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},
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{
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name: "ingress-http-multiple-services",
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create: proxycfg.TestConfigSnapshotIngress_HTTPMultipleServices,
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setup: func(snap *proxycfg.ConfigSnapshot) {
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snap.IngressGateway.Upstreams = map[proxycfg.IngressListenerKey]structs.Upstreams{
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{Protocol: "http", Port: 8080}: {
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{
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DestinationName: "foo",
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LocalBindPort: 8080,
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IngressHosts: []string{
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"test1.example.com",
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"test2.example.com",
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"test2.example.com:8080",
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},
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},
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{
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DestinationName: "bar",
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LocalBindPort: 8080,
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},
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},
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{Protocol: "http", Port: 443}: {
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{
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DestinationName: "baz",
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LocalBindPort: 443,
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},
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{
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DestinationName: "qux",
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LocalBindPort: 443,
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},
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},
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}
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// We do not add baz/qux here so that we test the chain.IsDefault() case
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entries := []structs.ConfigEntry{
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&structs.ProxyConfigEntry{
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Kind: structs.ProxyDefaults,
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Name: structs.ProxyConfigGlobal,
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Config: map[string]interface{}{
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"protocol": "http",
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},
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},
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&structs.ServiceResolverConfigEntry{
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Kind: structs.ServiceResolver,
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Name: "foo",
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ConnectTimeout: 22 * time.Second,
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},
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&structs.ServiceResolverConfigEntry{
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Kind: structs.ServiceResolver,
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Name: "bar",
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ConnectTimeout: 22 * time.Second,
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},
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}
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fooChain := discoverychain.TestCompileConfigEntries(t, "foo", "default", "dc1", connect.TestClusterID+".consul", "dc1", nil, entries...)
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barChain := discoverychain.TestCompileConfigEntries(t, "bar", "default", "dc1", connect.TestClusterID+".consul", "dc1", nil, entries...)
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bazChain := discoverychain.TestCompileConfigEntries(t, "baz", "default", "dc1", connect.TestClusterID+".consul", "dc1", nil, entries...)
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quxChain := discoverychain.TestCompileConfigEntries(t, "qux", "default", "dc1", connect.TestClusterID+".consul", "dc1", nil, entries...)
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snap.IngressGateway.DiscoveryChain = map[string]*structs.CompiledDiscoveryChain{
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"foo": fooChain,
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"bar": barChain,
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"baz": bazChain,
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"qux": quxChain,
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}
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},
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},
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{
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name: "terminating-gateway-lb-config",
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create: proxycfg.TestConfigSnapshotTerminatingGateway,
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setup: func(snap *proxycfg.ConfigSnapshot) {
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snap.TerminatingGateway.ServiceResolvers = map[structs.ServiceName]*structs.ServiceResolverConfigEntry{
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structs.NewServiceName("web", nil): {
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Kind: structs.ServiceResolver,
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Name: "web",
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DefaultSubset: "v2",
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Subsets: map[string]structs.ServiceResolverSubset{
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"v1": {
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Filter: "Service.Meta.Version == 1",
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},
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"v2": {
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Filter: "Service.Meta.Version == 2",
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OnlyPassing: true,
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},
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},
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LoadBalancer: &structs.LoadBalancer{
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Policy: "ring_hash",
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RingHashConfig: &structs.RingHashConfig{
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MinimumRingSize: 20,
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MaximumRingSize: 50,
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},
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HashPolicies: []structs.HashPolicy{
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{
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Field: structs.HashPolicyCookie,
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FieldValue: "chocolate-chip",
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Terminal: true,
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},
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{
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Field: structs.HashPolicyHeader,
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FieldValue: "x-user-id",
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},
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{
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SourceIP: true,
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Terminal: true,
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},
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},
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},
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},
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}
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snap.TerminatingGateway.ServiceConfigs[structs.NewServiceName("web", nil)] = &structs.ServiceConfigResponse{
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ProxyConfig: map[string]interface{}{"protocol": "http"},
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}
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},
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},
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}
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for _, envoyVersion := range proxysupport.EnvoyVersions {
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sf, err := determineSupportedProxyFeaturesFromString(envoyVersion)
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require.NoError(t, err)
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t.Run("envoy-"+envoyVersion, func(t *testing.T) {
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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require := require.New(t)
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// Sanity check default with no overrides first
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snap := tt.create(t)
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// We need to replace the TLS certs with deterministic ones to make golden
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// files workable. Note we don't update these otherwise they'd change
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// golden files for every test case and so not be any use!
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setupTLSRootsAndLeaf(t, snap)
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if tt.setup != nil {
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tt.setup(snap)
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}
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s := Server{Logger: testutil.Logger(t)}
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cInfo := connectionInfo{
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Token: "my-token",
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ProxyFeatures: sf,
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}
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routes, err := s.routesFromSnapshot(cInfo, snap)
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require.NoError(err)
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sort.Slice(routes, func(i, j int) bool {
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return routes[i].(*envoy.RouteConfiguration).Name < routes[j].(*envoy.RouteConfiguration).Name
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})
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r, err := createResponse(RouteType, "00000001", "00000001", routes)
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require.NoError(err)
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gotJSON := responseToJSON(t, r)
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gName := tt.name
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if tt.overrideGoldenName != "" {
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gName = tt.overrideGoldenName
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}
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require.JSONEq(goldenEnvoy(t, filepath.Join("routes", gName), envoyVersion, gotJSON), gotJSON)
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})
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}
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})
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}
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}
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func TestEnvoyLBConfig_InjectToRouteAction(t *testing.T) {
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var tests = []struct {
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name string
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lb *structs.LoadBalancer
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expected envoyroute.RouteAction
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}{
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{
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name: "empty",
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lb: &structs.LoadBalancer{
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Policy: "",
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},
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// we only modify route actions for hash-based LB policies
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expected: envoyroute.RouteAction{},
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},
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{
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name: "least request",
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lb: &structs.LoadBalancer{
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Policy: structs.LBPolicyLeastRequest,
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LeastRequestConfig: &structs.LeastRequestConfig{
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ChoiceCount: 3,
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},
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},
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// we only modify route actions for hash-based LB policies
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expected: envoyroute.RouteAction{},
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},
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{
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name: "headers",
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lb: &structs.LoadBalancer{
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Policy: "ring_hash",
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RingHashConfig: &structs.RingHashConfig{
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MinimumRingSize: 3,
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MaximumRingSize: 7,
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},
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HashPolicies: []structs.HashPolicy{
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{
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Field: structs.HashPolicyHeader,
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FieldValue: "x-route-key",
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Terminal: true,
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},
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},
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},
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expected: envoyroute.RouteAction{
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HashPolicy: []*envoyroute.RouteAction_HashPolicy{
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{
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PolicySpecifier: &envoyroute.RouteAction_HashPolicy_Header_{
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Header: &envoyroute.RouteAction_HashPolicy_Header{
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HeaderName: "x-route-key",
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},
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},
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Terminal: true,
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},
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},
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},
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},
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{
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name: "cookies",
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lb: &structs.LoadBalancer{
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Policy: structs.LBPolicyMaglev,
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HashPolicies: []structs.HashPolicy{
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{
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Field: structs.HashPolicyCookie,
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FieldValue: "red-velvet",
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Terminal: true,
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},
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{
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Field: structs.HashPolicyCookie,
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FieldValue: "oatmeal",
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},
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},
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},
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expected: envoyroute.RouteAction{
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HashPolicy: []*envoyroute.RouteAction_HashPolicy{
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{
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PolicySpecifier: &envoyroute.RouteAction_HashPolicy_Cookie_{
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Cookie: &envoyroute.RouteAction_HashPolicy_Cookie{
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Name: "red-velvet",
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},
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},
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Terminal: true,
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},
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{
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PolicySpecifier: &envoyroute.RouteAction_HashPolicy_Cookie_{
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Cookie: &envoyroute.RouteAction_HashPolicy_Cookie{
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Name: "oatmeal",
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},
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},
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},
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},
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},
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},
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{
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name: "non-zero session ttl gets zeroed out",
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lb: &structs.LoadBalancer{
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Policy: structs.LBPolicyMaglev,
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HashPolicies: []structs.HashPolicy{
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{
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Field: structs.HashPolicyCookie,
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FieldValue: "oatmeal",
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CookieConfig: &structs.CookieConfig{
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TTL: 10 * time.Second,
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Session: true,
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},
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},
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},
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},
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expected: envoyroute.RouteAction{
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HashPolicy: []*envoyroute.RouteAction_HashPolicy{
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{
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PolicySpecifier: &envoyroute.RouteAction_HashPolicy_Cookie_{
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Cookie: &envoyroute.RouteAction_HashPolicy_Cookie{
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Name: "oatmeal",
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Ttl: ptypes.DurationProto(0 * time.Second),
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},
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},
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},
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},
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},
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},
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{
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name: "zero value ttl omitted if not session cookie",
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lb: &structs.LoadBalancer{
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Policy: structs.LBPolicyMaglev,
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HashPolicies: []structs.HashPolicy{
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{
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Field: structs.HashPolicyCookie,
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FieldValue: "oatmeal",
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CookieConfig: &structs.CookieConfig{
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Path: "/oven",
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},
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},
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},
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},
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expected: envoyroute.RouteAction{
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HashPolicy: []*envoyroute.RouteAction_HashPolicy{
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{
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PolicySpecifier: &envoyroute.RouteAction_HashPolicy_Cookie_{
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Cookie: &envoyroute.RouteAction_HashPolicy_Cookie{
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Name: "oatmeal",
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Path: "/oven",
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Ttl: nil,
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},
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},
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},
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},
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},
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},
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{
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name: "source addr",
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lb: &structs.LoadBalancer{
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Policy: structs.LBPolicyMaglev,
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HashPolicies: []structs.HashPolicy{
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{
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SourceIP: true,
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Terminal: true,
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},
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},
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},
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expected: envoyroute.RouteAction{
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HashPolicy: []*envoyroute.RouteAction_HashPolicy{
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{
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PolicySpecifier: &envoyroute.RouteAction_HashPolicy_ConnectionProperties_{
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ConnectionProperties: &envoyroute.RouteAction_HashPolicy_ConnectionProperties{
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SourceIp: true,
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},
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},
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Terminal: true,
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},
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},
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},
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},
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{
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name: "kitchen sink",
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lb: &structs.LoadBalancer{
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Policy: structs.LBPolicyMaglev,
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HashPolicies: []structs.HashPolicy{
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{
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SourceIP: true,
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Terminal: true,
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},
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{
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Field: structs.HashPolicyCookie,
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FieldValue: "oatmeal",
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CookieConfig: &structs.CookieConfig{
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TTL: 10 * time.Second,
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Path: "/oven",
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},
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},
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{
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Field: structs.HashPolicyCookie,
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FieldValue: "chocolate-chip",
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CookieConfig: &structs.CookieConfig{
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Session: true,
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Path: "/oven",
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},
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},
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{
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Field: structs.HashPolicyHeader,
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FieldValue: "special-header",
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Terminal: true,
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},
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},
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},
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expected: envoyroute.RouteAction{
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HashPolicy: []*envoyroute.RouteAction_HashPolicy{
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{
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PolicySpecifier: &envoyroute.RouteAction_HashPolicy_ConnectionProperties_{
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ConnectionProperties: &envoyroute.RouteAction_HashPolicy_ConnectionProperties{
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SourceIp: true,
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},
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},
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Terminal: true,
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},
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{
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PolicySpecifier: &envoyroute.RouteAction_HashPolicy_Cookie_{
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Cookie: &envoyroute.RouteAction_HashPolicy_Cookie{
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Name: "oatmeal",
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Ttl: ptypes.DurationProto(10 * time.Second),
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Path: "/oven",
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},
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},
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},
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{
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PolicySpecifier: &envoyroute.RouteAction_HashPolicy_Cookie_{
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Cookie: &envoyroute.RouteAction_HashPolicy_Cookie{
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Name: "chocolate-chip",
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Ttl: ptypes.DurationProto(0 * time.Second),
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Path: "/oven",
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},
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},
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},
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{
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PolicySpecifier: &envoyroute.RouteAction_HashPolicy_Header_{
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Header: &envoyroute.RouteAction_HashPolicy_Header{
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HeaderName: "special-header",
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},
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},
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Terminal: true,
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},
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},
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},
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},
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}
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for _, tc := range tests {
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t.Run(tc.name, func(t *testing.T) {
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var ra envoyroute.RouteAction
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err := injectLBToRouteAction(tc.lb, &ra)
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require.NoError(t, err)
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require.Equal(t, &tc.expected, &ra)
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})
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}
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}
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