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consul/agent/xds/endpoints_test.go

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package xds
import (
"log"
"os"
"path"
"sort"
"testing"
"github.com/mitchellh/copystructure"
"github.com/stretchr/testify/require"
envoy "github.com/envoyproxy/go-control-plane/envoy/api/v2"
"github.com/envoyproxy/go-control-plane/envoy/api/v2/core"
envoyendpoint "github.com/envoyproxy/go-control-plane/envoy/api/v2/endpoint"
"github.com/hashicorp/consul/agent/proxycfg"
"github.com/hashicorp/consul/agent/structs"
testinf "github.com/mitchellh/go-testing-interface"
)
func Test_makeLoadAssignment(t *testing.T) {
testCheckServiceNodes := structs.CheckServiceNodes{
structs.CheckServiceNode{
Node: &structs.Node{
ID: "node1-id",
Node: "node1",
Address: "10.10.10.10",
Datacenter: "dc1",
},
Service: &structs.NodeService{
Service: "web",
Port: 1234,
},
Checks: structs.HealthChecks{
&structs.HealthCheck{
Node: "node1",
CheckID: "serfHealth",
Status: "passing",
},
&structs.HealthCheck{
Node: "node1",
ServiceID: "web",
CheckID: "web:check",
Status: "passing",
},
},
},
structs.CheckServiceNode{
Node: &structs.Node{
ID: "node2-id",
Node: "node2",
Address: "10.10.10.20",
Datacenter: "dc1",
},
Service: &structs.NodeService{
Service: "web",
Port: 1234,
},
Checks: structs.HealthChecks{
&structs.HealthCheck{
Node: "node2",
CheckID: "serfHealth",
Status: "passing",
},
&structs.HealthCheck{
Node: "node2",
ServiceID: "web",
CheckID: "web:check",
Status: "passing",
},
},
},
}
testWeightedCheckServiceNodesRaw, err := copystructure.Copy(testCheckServiceNodes)
require.NoError(t, err)
testWeightedCheckServiceNodes := testWeightedCheckServiceNodesRaw.(structs.CheckServiceNodes)
testWeightedCheckServiceNodes[0].Service.Weights = &structs.Weights{
Passing: 10,
Warning: 1,
}
testWeightedCheckServiceNodes[1].Service.Weights = &structs.Weights{
Passing: 5,
Warning: 0,
}
testWarningCheckServiceNodesRaw, err := copystructure.Copy(testWeightedCheckServiceNodes)
require.NoError(t, err)
testWarningCheckServiceNodes := testWarningCheckServiceNodesRaw.(structs.CheckServiceNodes)
testWarningCheckServiceNodes[0].Checks[0].Status = "warning"
testWarningCheckServiceNodes[1].Checks[0].Status = "warning"
// TODO(rb): test onlypassing
tests := []struct {
name string
clusterName string
overprovisioningFactor int
endpoints []loadAssignmentEndpointGroup
want *envoy.ClusterLoadAssignment
}{
{
name: "no instances",
clusterName: "service:test",
endpoints: []loadAssignmentEndpointGroup{
{Endpoints: nil},
},
want: &envoy.ClusterLoadAssignment{
ClusterName: "service:test",
Endpoints: []envoyendpoint.LocalityLbEndpoints{{
LbEndpoints: []envoyendpoint.LbEndpoint{},
}},
},
},
{
name: "instances, no weights",
clusterName: "service:test",
endpoints: []loadAssignmentEndpointGroup{
{Endpoints: testCheckServiceNodes},
},
want: &envoy.ClusterLoadAssignment{
ClusterName: "service:test",
Endpoints: []envoyendpoint.LocalityLbEndpoints{{
LbEndpoints: []envoyendpoint.LbEndpoint{
envoyendpoint.LbEndpoint{
HostIdentifier: &envoyendpoint.LbEndpoint_Endpoint{
Endpoint: &envoyendpoint.Endpoint{
Address: makeAddressPtr("10.10.10.10", 1234),
}},
HealthStatus: core.HealthStatus_HEALTHY,
LoadBalancingWeight: makeUint32Value(1),
},
envoyendpoint.LbEndpoint{
HostIdentifier: &envoyendpoint.LbEndpoint_Endpoint{
Endpoint: &envoyendpoint.Endpoint{
Address: makeAddressPtr("10.10.10.20", 1234),
}},
HealthStatus: core.HealthStatus_HEALTHY,
LoadBalancingWeight: makeUint32Value(1),
},
},
}},
},
},
{
name: "instances, healthy weights",
clusterName: "service:test",
endpoints: []loadAssignmentEndpointGroup{
{Endpoints: testWeightedCheckServiceNodes},
},
want: &envoy.ClusterLoadAssignment{
ClusterName: "service:test",
Endpoints: []envoyendpoint.LocalityLbEndpoints{{
LbEndpoints: []envoyendpoint.LbEndpoint{
envoyendpoint.LbEndpoint{
HostIdentifier: &envoyendpoint.LbEndpoint_Endpoint{
Endpoint: &envoyendpoint.Endpoint{
Address: makeAddressPtr("10.10.10.10", 1234),
}},
HealthStatus: core.HealthStatus_HEALTHY,
LoadBalancingWeight: makeUint32Value(10),
},
envoyendpoint.LbEndpoint{
HostIdentifier: &envoyendpoint.LbEndpoint_Endpoint{
Endpoint: &envoyendpoint.Endpoint{
Address: makeAddressPtr("10.10.10.20", 1234),
}},
HealthStatus: core.HealthStatus_HEALTHY,
LoadBalancingWeight: makeUint32Value(5),
},
},
}},
},
},
{
name: "instances, warning weights",
clusterName: "service:test",
endpoints: []loadAssignmentEndpointGroup{
{Endpoints: testWarningCheckServiceNodes},
},
want: &envoy.ClusterLoadAssignment{
ClusterName: "service:test",
Endpoints: []envoyendpoint.LocalityLbEndpoints{{
LbEndpoints: []envoyendpoint.LbEndpoint{
envoyendpoint.LbEndpoint{
HostIdentifier: &envoyendpoint.LbEndpoint_Endpoint{
Endpoint: &envoyendpoint.Endpoint{
Address: makeAddressPtr("10.10.10.10", 1234),
}},
HealthStatus: core.HealthStatus_HEALTHY,
LoadBalancingWeight: makeUint32Value(1),
},
envoyendpoint.LbEndpoint{
HostIdentifier: &envoyendpoint.LbEndpoint_Endpoint{
Endpoint: &envoyendpoint.Endpoint{
Address: makeAddressPtr("10.10.10.20", 1234),
}},
HealthStatus: core.HealthStatus_UNHEALTHY,
LoadBalancingWeight: makeUint32Value(1),
},
},
}},
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
got := makeLoadAssignment(
tt.clusterName,
tt.overprovisioningFactor,
tt.endpoints,
"dc1",
)
require.Equal(t, tt.want, got)
})
}
}
func Test_endpointsFromSnapshot(t *testing.T) {
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",
create: proxycfg.TestConfigSnapshot,
setup: nil, // Default snapshot
},
{
name: "mesh-gateway",
create: proxycfg.TestConfigSnapshotMeshGateway,
setup: nil,
},
{
name: "connect-proxy-with-chain",
create: proxycfg.TestConfigSnapshotDiscoveryChain,
setup: nil,
},
{
name: "connect-proxy-with-chain-and-overrides",
create: proxycfg.TestConfigSnapshotDiscoveryChainWithOverrides,
setup: nil,
},
{
name: "connect-proxy-with-chain-and-failover",
create: proxycfg.TestConfigSnapshotDiscoveryChainWithFailover,
setup: nil,
},
{
name: "connect-proxy-with-chain-and-sliding-failover",
create: proxycfg.TestConfigSnapshotDiscoveryChainWithFailover,
setup: func(snap *proxycfg.ConfigSnapshot) {
chain := snap.ConnectProxy.DiscoveryChain["db"]
dbTarget := structs.DiscoveryTarget{
Service: "db",
Namespace: "default",
Datacenter: "dc1",
}
dbResolverNode := chain.Nodes["resolver:"+dbTarget.Identifier()]
failover := dbResolverNode.Resolver.Failover
failover.Definition.OverprovisioningFactor = 160
},
},
{
name: "splitter-with-resolver-redirect",
create: proxycfg.TestConfigSnapshotDiscoveryChain_SplitterWithResolverRedirectMultiDC,
setup: nil,
},
{
name: "mesh-gateway-service-subsets",
create: proxycfg.TestConfigSnapshotMeshGateway,
setup: func(snap *proxycfg.ConfigSnapshot) {
snap.MeshGateway.ServiceResolvers = map[string]*structs.ServiceResolverConfigEntry{
"bar": &structs.ServiceResolverConfigEntry{
Kind: structs.ServiceResolver,
Name: "bar",
Subsets: map[string]structs.ServiceResolverSubset{
"v1": structs.ServiceResolverSubset{
Filter: "Service.Meta.version == 1",
},
"v2": structs.ServiceResolverSubset{
Filter: "Service.Meta.version == 2",
OnlyPassing: true,
},
},
},
"foo": &structs.ServiceResolverConfigEntry{
Kind: structs.ServiceResolver,
Name: "foo",
Subsets: map[string]structs.ServiceResolverSubset{
"v1": structs.ServiceResolverSubset{
Filter: "Service.Meta.version == 1",
},
"v2": structs.ServiceResolverSubset{
Filter: "Service.Meta.version == 2",
OnlyPassing: true,
},
},
},
}
},
},
}
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)
}
// Need server just for logger dependency
s := Server{Logger: log.New(os.Stderr, "", log.LstdFlags)}
endpoints, err := s.endpointsFromSnapshot(snap, "my-token")
sort.Slice(endpoints, func(i, j int) bool {
return endpoints[i].(*envoy.ClusterLoadAssignment).ClusterName < endpoints[j].(*envoy.ClusterLoadAssignment).ClusterName
})
require.NoError(err)
r, err := createResponse(EndpointType, "00000001", "00000001", endpoints)
require.NoError(err)
gotJSON := responseToJSON(t, r)
gName := tt.name
if tt.overrideGoldenName != "" {
gName = tt.overrideGoldenName
}
require.JSONEq(golden(t, path.Join("endpoints", gName), gotJSON), gotJSON)
})
}
}
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