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Connect: Fix Envoy getting stuck during load
Also in this PR: - Enabled outlier detection on upstreams which will mark instances unhealthy after 5 failures (using Envoy's defaults) - Enable weighted load balancing where DNS weights are configured
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,76 @@ | ||
| package xds | ||
|
|
||
| import ( | ||
| "testing" | ||
| "time" | ||
|
|
||
| envoy "github.com/envoyproxy/go-control-plane/envoy/api/v2" | ||
| envoyauth "github.com/envoyproxy/go-control-plane/envoy/api/v2/auth" | ||
| "github.com/envoyproxy/go-control-plane/envoy/api/v2/cluster" | ||
| envoycore "github.com/envoyproxy/go-control-plane/envoy/api/v2/core" | ||
| "github.com/stretchr/testify/require" | ||
|
|
||
| "github.com/hashicorp/consul/agent/proxycfg" | ||
| "github.com/hashicorp/consul/agent/structs" | ||
| ) | ||
|
|
||
| func Test_makeUpstreamCluster(t *testing.T) { | ||
| tests := []struct { | ||
| name string | ||
| snap proxycfg.ConfigSnapshot | ||
| upstream structs.Upstream | ||
| want *envoy.Cluster | ||
| }{ | ||
| { | ||
| name: "timeout override", | ||
| snap: proxycfg.ConfigSnapshot{}, | ||
| upstream: structs.TestUpstreams(t)[0], | ||
| want: &envoy.Cluster{ | ||
| Name: "service:db", | ||
| Type: envoy.Cluster_EDS, | ||
| EdsClusterConfig: &envoy.Cluster_EdsClusterConfig{ | ||
| EdsConfig: &envoycore.ConfigSource{ | ||
| ConfigSourceSpecifier: &envoycore.ConfigSource_Ads{ | ||
| Ads: &envoycore.AggregatedConfigSource{}, | ||
| }, | ||
| }, | ||
| }, | ||
| ConnectTimeout: 1 * time.Second, // TestUpstreams overrides to 1000ms | ||
| OutlierDetection: &cluster.OutlierDetection{}, | ||
| TlsContext: &envoyauth.UpstreamTlsContext{ | ||
| CommonTlsContext: makeCommonTLSContext(&proxycfg.ConfigSnapshot{}), | ||
| }, | ||
| }, | ||
| }, | ||
| { | ||
| name: "timeout default", | ||
| snap: proxycfg.ConfigSnapshot{}, | ||
| upstream: structs.TestUpstreams(t)[1], | ||
| want: &envoy.Cluster{ | ||
| Name: "prepared_query:geo-cache", | ||
| Type: envoy.Cluster_EDS, | ||
| EdsClusterConfig: &envoy.Cluster_EdsClusterConfig{ | ||
| EdsConfig: &envoycore.ConfigSource{ | ||
| ConfigSourceSpecifier: &envoycore.ConfigSource_Ads{ | ||
| Ads: &envoycore.AggregatedConfigSource{}, | ||
| }, | ||
| }, | ||
| }, | ||
| ConnectTimeout: 5 * time.Second, // Default | ||
| OutlierDetection: &cluster.OutlierDetection{}, | ||
| TlsContext: &envoyauth.UpstreamTlsContext{ | ||
| CommonTlsContext: makeCommonTLSContext(&proxycfg.ConfigSnapshot{}), | ||
| }, | ||
| }, | ||
| }, | ||
| } | ||
| for _, tt := range tests { | ||
| t.Run(tt.name, func(t *testing.T) { | ||
| require := require.New(t) | ||
| got, err := makeUpstreamCluster(tt.upstream, &tt.snap) | ||
| require.NoError(err) | ||
|
|
||
| require.Equal(tt.want, got) | ||
| }) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,193 @@ | ||
| package xds | ||
|
|
||
| import ( | ||
| "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/structs" | ||
| ) | ||
|
|
||
| func Test_makeLoadAssignment(t *testing.T) { | ||
|
|
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| 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) | ||
|
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| testWeightedCheckServiceNodes[0].Service.Weights = &structs.Weights{ | ||
| Passing: 10, | ||
| Warning: 1, | ||
| } | ||
| testWeightedCheckServiceNodes[1].Service.Weights = &structs.Weights{ | ||
| Passing: 5, | ||
| Warning: 0, | ||
| } | ||
|
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| testWarningCheckServiceNodesRaw, err := copystructure.Copy(testWeightedCheckServiceNodes) | ||
| require.NoError(t, err) | ||
| testWarningCheckServiceNodes := testWarningCheckServiceNodesRaw.(structs.CheckServiceNodes) | ||
|
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| testWarningCheckServiceNodes[0].Checks[0].Status = "warning" | ||
| testWarningCheckServiceNodes[1].Checks[0].Status = "warning" | ||
|
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| tests := []struct { | ||
| name string | ||
| clusterName string | ||
| endpoints structs.CheckServiceNodes | ||
| want *envoy.ClusterLoadAssignment | ||
| }{ | ||
| { | ||
| name: "no instances", | ||
| clusterName: "service:test", | ||
| endpoints: structs.CheckServiceNodes{}, | ||
| want: &envoy.ClusterLoadAssignment{ | ||
| ClusterName: "service:test", | ||
| Endpoints: []envoyendpoint.LocalityLbEndpoints{{ | ||
| LbEndpoints: []envoyendpoint.LbEndpoint{}, | ||
| }}, | ||
| }, | ||
| }, | ||
| { | ||
| name: "instances, no weights", | ||
| clusterName: "service:test", | ||
| endpoints: testCheckServiceNodes, | ||
| want: &envoy.ClusterLoadAssignment{ | ||
| ClusterName: "service:test", | ||
| Endpoints: []envoyendpoint.LocalityLbEndpoints{{ | ||
| LbEndpoints: []envoyendpoint.LbEndpoint{ | ||
| envoyendpoint.LbEndpoint{ | ||
| Endpoint: &envoyendpoint.Endpoint{ | ||
| Address: makeAddressPtr("10.10.10.10", 1234), | ||
| }, | ||
| HealthStatus: core.HealthStatus_HEALTHY, | ||
| LoadBalancingWeight: makeUint32Value(1), | ||
| }, | ||
| envoyendpoint.LbEndpoint{ | ||
| 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: testWeightedCheckServiceNodes, | ||
| want: &envoy.ClusterLoadAssignment{ | ||
| ClusterName: "service:test", | ||
| Endpoints: []envoyendpoint.LocalityLbEndpoints{{ | ||
| LbEndpoints: []envoyendpoint.LbEndpoint{ | ||
| envoyendpoint.LbEndpoint{ | ||
| Endpoint: &envoyendpoint.Endpoint{ | ||
| Address: makeAddressPtr("10.10.10.10", 1234), | ||
| }, | ||
| HealthStatus: core.HealthStatus_HEALTHY, | ||
| LoadBalancingWeight: makeUint32Value(10), | ||
| }, | ||
| envoyendpoint.LbEndpoint{ | ||
| 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: testWarningCheckServiceNodes, | ||
| want: &envoy.ClusterLoadAssignment{ | ||
| ClusterName: "service:test", | ||
| Endpoints: []envoyendpoint.LocalityLbEndpoints{{ | ||
| LbEndpoints: []envoyendpoint.LbEndpoint{ | ||
| envoyendpoint.LbEndpoint{ | ||
| Endpoint: &envoyendpoint.Endpoint{ | ||
| Address: makeAddressPtr("10.10.10.10", 1234), | ||
| }, | ||
| HealthStatus: core.HealthStatus_HEALTHY, | ||
| LoadBalancingWeight: makeUint32Value(1), | ||
| }, | ||
| envoyendpoint.LbEndpoint{ | ||
| 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.endpoints) | ||
| require.Equal(t, tt.want, got) | ||
| }) | ||
| } | ||
| } |
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