open-consul/agent/xds/routes_test.go

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package xds
import (
"path"
"sort"
"testing"
"time"
envoy "github.com/envoyproxy/go-control-plane/envoy/api/v2"
"github.com/hashicorp/consul/agent/proxycfg"
"github.com/hashicorp/consul/agent/structs"
testinf "github.com/mitchellh/go-testing-interface"
"github.com/stretchr/testify/require"
)
func TestRoutesFromSnapshot(t *testing.T) {
httpMatch := func(http *structs.ServiceRouteHTTPMatch) *structs.ServiceRouteMatch {
return &structs.ServiceRouteMatch{HTTP: http}
}
httpMatchHeader := func(headers ...structs.ServiceRouteHTTPMatchHeader) *structs.ServiceRouteMatch {
return httpMatch(&structs.ServiceRouteHTTPMatch{
Header: headers,
})
}
httpMatchParam := func(params ...structs.ServiceRouteHTTPMatchQueryParam) *structs.ServiceRouteMatch {
return httpMatch(&structs.ServiceRouteHTTPMatch{
QueryParam: params,
})
}
toService := func(svc string) *structs.ServiceRouteDestination {
return &structs.ServiceRouteDestination{Service: svc}
}
tests := []struct {
name string
create func(t testinf.T) *proxycfg.ConfigSnapshot
// Setup is called before the test starts. It is passed the snapshot from
// create func and is allowed to modify it in any way to setup the
// test input.
setup func(snap *proxycfg.ConfigSnapshot)
overrideGoldenName string
}{
{
name: "defaults-no-chain",
create: proxycfg.TestConfigSnapshot,
setup: nil, // Default snapshot
},
{
name: "connect-proxy-with-chain",
create: proxycfg.TestConfigSnapshotDiscoveryChain,
setup: nil,
},
{
name: "splitter-with-resolver-redirect",
create: proxycfg.TestConfigSnapshotDiscoveryChain_SplitterWithResolverRedirectMultiDC,
setup: nil,
},
{
name: "connect-proxy-with-chain-and-splitter",
create: func(t testinf.T) *proxycfg.ConfigSnapshot {
return proxycfg.TestConfigSnapshotDiscoveryChainWithEntries(t,
&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"},
},
},
)
},
setup: nil,
},
{
name: "connect-proxy-with-grpc-router",
create: func(t testinf.T) *proxycfg.ConfigSnapshot {
return proxycfg.TestConfigSnapshotDiscoveryChainWithEntries(t,
&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: httpMatch(&structs.ServiceRouteHTTPMatch{
PathExact: "/fgrpc.PingServer/Ping",
}),
Destination: toService("prefix"),
},
},
},
)
},
},
{
name: "connect-proxy-with-chain-and-router",
create: func(t testinf.T) *proxycfg.ConfigSnapshot {
return proxycfg.TestConfigSnapshotDiscoveryChainWithEntries(t,
&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"),
},
},
},
)
},
setup: nil,
},
// TODO(rb): test match stanza skipped for grpc
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
require := require.New(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
// golden files for every test case and so not be any use!
if snap.ConnectProxy.Leaf != nil {
snap.ConnectProxy.Leaf.CertPEM = golden(t, "test-leaf-cert", "")
snap.ConnectProxy.Leaf.PrivateKeyPEM = golden(t, "test-leaf-key", "")
}
if snap.Roots != nil {
snap.Roots.Roots[0].RootCert = golden(t, "test-root-cert", "")
}
if tt.setup != nil {
tt.setup(snap)
}
routes, err := routesFromSnapshot(snap, "my-token")
require.NoError(err)
sort.Slice(routes, func(i, j int) bool {
return routes[i].(*envoy.RouteConfiguration).Name < routes[j].(*envoy.RouteConfiguration).Name
})
r, err := createResponse(RouteType, "00000001", "00000001", routes)
require.NoError(err)
gotJSON := responseToJSON(t, r)
gName := tt.name
if tt.overrideGoldenName != "" {
gName = tt.overrideGoldenName
}
require.JSONEq(golden(t, path.Join("routes", gName), gotJSON), gotJSON)
})
}
}