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cluster_manager_impl_test.cc
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cluster_manager_impl_test.cc
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#include "envoy/admin/v3/config_dump.pb.h"
#include "envoy/config/bootstrap/v3/bootstrap.pb.h"
#include "envoy/config/cluster/v3/cluster.pb.h"
#include "envoy/config/cluster/v3/cluster.pb.validate.h"
#include "envoy/config/core/v3/base.pb.h"
#include "common/network/raw_buffer_socket.h"
#include "common/router/context_impl.h"
#include "extensions/transport_sockets/raw_buffer/config.h"
#include "test/common/upstream/test_cluster_manager.h"
#include "test/mocks/upstream/cds_api.h"
#include "test/mocks/upstream/cluster_priority_set.h"
#include "test/mocks/upstream/cluster_real_priority_set.h"
#include "test/mocks/upstream/cluster_update_callbacks.h"
#include "test/mocks/upstream/health_checker.h"
#include "test/mocks/upstream/load_balancer_context.h"
#include "test/mocks/upstream/thread_aware_load_balancer.h"
#include "test/test_common/test_runtime.h"
namespace Envoy {
namespace Upstream {
namespace {
using ::testing::_;
using ::testing::DoAll;
using ::testing::Eq;
using ::testing::InSequence;
using ::testing::Invoke;
using ::testing::Mock;
using ::testing::NiceMock;
using ::testing::Return;
using ::testing::ReturnNew;
using ::testing::ReturnRef;
using ::testing::SaveArg;
envoy::config::bootstrap::v3::Bootstrap parseBootstrapFromV3Yaml(const std::string& yaml,
bool avoid_boosting = true) {
envoy::config::bootstrap::v3::Bootstrap bootstrap;
TestUtility::loadFromYaml(yaml, bootstrap, true, avoid_boosting);
return bootstrap;
}
std::string clustersJson(const std::vector<std::string>& clusters) {
return fmt::sprintf("\"clusters\": [%s]", absl::StrJoin(clusters, ","));
}
class ClusterManagerImplTest : public testing::Test {
public:
ClusterManagerImplTest()
: http_context_(factory_.stats_.symbolTable()), grpc_context_(factory_.stats_.symbolTable()),
router_context_(factory_.stats_.symbolTable()) {}
void create(const envoy::config::bootstrap::v3::Bootstrap& bootstrap) {
cluster_manager_ = std::make_unique<TestClusterManagerImpl>(
bootstrap, factory_, factory_.stats_, factory_.tls_, factory_.runtime_,
factory_.local_info_, log_manager_, factory_.dispatcher_, admin_, validation_context_,
*factory_.api_, http_context_, grpc_context_, router_context_);
cluster_manager_->setPrimaryClustersInitializedCb(
[this, bootstrap]() { cluster_manager_->initializeSecondaryClusters(bootstrap); });
}
void createWithLocalClusterUpdate(const bool enable_merge_window = true) {
std::string yaml = R"EOF(
static_resources:
clusters:
- name: cluster_1
connect_timeout: 0.250s
type: STATIC
lb_policy: ROUND_ROBIN
load_assignment:
cluster_name: cluster_1
endpoints:
- lb_endpoints:
- endpoint:
address:
socket_address:
address: 127.0.0.1
port_value: 11001
- endpoint:
address:
socket_address:
address: 127.0.0.1
port_value: 11002
)EOF";
const std::string merge_window_enabled = R"EOF(
common_lb_config:
update_merge_window: 3s
)EOF";
const std::string merge_window_disabled = R"EOF(
common_lb_config:
update_merge_window: 0s
)EOF";
yaml += enable_merge_window ? merge_window_enabled : merge_window_disabled;
const auto& bootstrap = parseBootstrapFromV3Yaml(yaml);
cluster_manager_ = std::make_unique<MockedUpdatedClusterManagerImpl>(
bootstrap, factory_, factory_.stats_, factory_.tls_, factory_.runtime_,
factory_.local_info_, log_manager_, factory_.dispatcher_, admin_, validation_context_,
*factory_.api_, local_cluster_update_, local_hosts_removed_, http_context_, grpc_context_,
router_context_);
}
void checkStats(uint64_t added, uint64_t modified, uint64_t removed, uint64_t active,
uint64_t warming) {
EXPECT_EQ(added, factory_.stats_.counter("cluster_manager.cluster_added").value());
EXPECT_EQ(modified, factory_.stats_.counter("cluster_manager.cluster_modified").value());
EXPECT_EQ(removed, factory_.stats_.counter("cluster_manager.cluster_removed").value());
EXPECT_EQ(active,
factory_.stats_
.gauge("cluster_manager.active_clusters", Stats::Gauge::ImportMode::NeverImport)
.value());
EXPECT_EQ(warming,
factory_.stats_
.gauge("cluster_manager.warming_clusters", Stats::Gauge::ImportMode::NeverImport)
.value());
}
void checkConfigDump(const std::string& expected_dump_yaml) {
auto message_ptr = admin_.config_tracker_.config_tracker_callbacks_["clusters"]();
const auto& clusters_config_dump =
dynamic_cast<const envoy::admin::v3::ClustersConfigDump&>(*message_ptr);
envoy::admin::v3::ClustersConfigDump expected_clusters_config_dump;
TestUtility::loadFromYaml(expected_dump_yaml, expected_clusters_config_dump);
EXPECT_EQ(expected_clusters_config_dump.DebugString(), clusters_config_dump.DebugString());
}
MetadataConstSharedPtr buildMetadata(const std::string& version) const {
envoy::config::core::v3::Metadata metadata;
if (!version.empty()) {
Envoy::Config::Metadata::mutableMetadataValue(
metadata, Config::MetadataFilters::get().ENVOY_LB, "version")
.set_string_value(version);
}
return std::make_shared<const envoy::config::core::v3::Metadata>(metadata);
}
Event::SimulatedTimeSystem time_system_;
NiceMock<TestClusterManagerFactory> factory_;
NiceMock<ProtobufMessage::MockValidationContext> validation_context_;
std::unique_ptr<TestClusterManagerImpl> cluster_manager_;
AccessLog::MockAccessLogManager log_manager_;
NiceMock<Server::MockAdmin> admin_;
MockLocalClusterUpdate local_cluster_update_;
MockLocalHostsRemoved local_hosts_removed_;
Http::ContextImpl http_context_;
Grpc::ContextImpl grpc_context_;
Router::ContextImpl router_context_;
};
envoy::config::bootstrap::v3::Bootstrap defaultConfig() {
const std::string yaml = R"EOF(
static_resources:
clusters: []
)EOF";
return parseBootstrapFromV3Yaml(yaml);
}
class AlpnSocketFactory : public Network::RawBufferSocketFactory {
public:
bool supportsAlpn() const override { return true; }
};
class AlpnTestConfigFactory
: public Envoy::Extensions::TransportSockets::RawBuffer::UpstreamRawBufferSocketFactory {
public:
std::string name() const override { return "envoy.transport_sockets.alpn"; }
Network::TransportSocketFactoryPtr
createTransportSocketFactory(const Protobuf::Message&,
Server::Configuration::TransportSocketFactoryContext&) override {
return std::make_unique<AlpnSocketFactory>();
}
};
TEST_F(ClusterManagerImplTest, MultipleProtocolClusterAlpn) {
AlpnTestConfigFactory alpn_factory;
Registry::InjectFactory<Server::Configuration::UpstreamTransportSocketConfigFactory>
registered_factory(alpn_factory);
const std::string yaml = R"EOF(
static_resources:
clusters:
- name: http12_cluster
connect_timeout: 0.250s
lb_policy: ROUND_ROBIN
typed_extension_protocol_options:
envoy.extensions.upstreams.http.v3.HttpProtocolOptions:
"@type": type.googleapis.com/envoy.extensions.upstreams.http.v3.HttpProtocolOptions
auto_config:
http2_protocol_options: {}
http_protocol_options: {}
transport_socket:
name: envoy.transport_sockets.alpn
)EOF";
create(parseBootstrapFromV3Yaml(yaml));
}
TEST_F(ClusterManagerImplTest, MultipleHealthCheckFail) {
const std::string yaml = R"EOF(
static_resources:
clusters:
- name: service_google
connect_timeout: 0.25s
health_checks:
- timeout: 1s
interval: 1s
http_health_check:
path: "/blah"
- timeout: 1s
interval: 1s
http_health_check:
path: "/"
)EOF";
EXPECT_THROW_WITH_MESSAGE(create(parseBootstrapFromV3Yaml(yaml)), EnvoyException,
"Multiple health checks not supported");
}
TEST_F(ClusterManagerImplTest, MultipleProtocolCluster) {
time_system_.setSystemTime(std::chrono::milliseconds(1234567891234));
const std::string yaml = R"EOF(
static_resources:
clusters:
- name: http12_cluster
connect_timeout: 0.250s
lb_policy: ROUND_ROBIN
http2_protocol_options: {}
http_protocol_options: {}
protocol_selection: USE_DOWNSTREAM_PROTOCOL
)EOF";
create(parseBootstrapFromV3Yaml(yaml));
checkConfigDump(R"EOF(
static_clusters:
- cluster:
"@type": type.googleapis.com/envoy.config.cluster.v3.Cluster
name: http12_cluster
connect_timeout: 0.250s
lb_policy: ROUND_ROBIN
http2_protocol_options: {}
http_protocol_options: {}
protocol_selection: USE_DOWNSTREAM_PROTOCOL
last_updated:
seconds: 1234567891
nanos: 234000000
dynamic_active_clusters:
dynamic_warming_clusters:
)EOF");
}
TEST_F(ClusterManagerImplTest, OutlierEventLog) {
const std::string json = R"EOF(
{
"cluster_manager": {
"outlier_detection": {
"event_log_path": "foo"
}
},
"static_resources": {
"clusters": []
}
}
)EOF";
EXPECT_CALL(log_manager_, createAccessLog("foo"));
create(parseBootstrapFromV3Json(json));
}
TEST_F(ClusterManagerImplTest, NoSdsConfig) {
const std::string yaml = R"EOF(
static_resources:
clusters:
- name: cluster_1
connect_timeout: 0.250s
type: eds
lb_policy: round_robin
)EOF";
EXPECT_THROW_WITH_MESSAGE(create(parseBootstrapFromV3Yaml(yaml)), EnvoyException,
"cannot create an EDS cluster without an EDS config");
}
TEST_F(ClusterManagerImplTest, UnknownClusterType) {
const std::string json = R"EOF(
{
"static_resources": {
"clusters": [
{
"name": "cluster_1",
"connect_timeout": "0.250s",
"type": "foo",
"lb_policy": "round_robin"
}]
}
}
)EOF";
EXPECT_THROW_WITH_REGEX(create(parseBootstrapFromV3Json(json)), EnvoyException,
"invalid value \"foo\"");
}
TEST_F(ClusterManagerImplTest, LocalClusterNotDefined) {
const std::string json = fmt::sprintf(
R"EOF(
{
"cluster_manager": {
"local_cluster_name": "new_cluster",
},
"static_resources": {
%s
}
}
)EOF",
clustersJson({defaultStaticClusterJson("cluster_1"), defaultStaticClusterJson("cluster_2")}));
EXPECT_THROW(create(parseBootstrapFromV3Json(json)), EnvoyException);
}
TEST_F(ClusterManagerImplTest, BadClusterManagerConfig) {
const std::string json = R"EOF(
{
"cluster_manager": {
"outlier_detection": {
"event_log_path": "foo"
},
"fake_property" : "fake_property"
},
"static_resources": {
"clusters": []
}
}
)EOF";
EXPECT_THROW_WITH_REGEX(create(parseBootstrapFromV3Json(json)), EnvoyException,
"fake_property: Cannot find field");
}
TEST_F(ClusterManagerImplTest, LocalClusterDefined) {
const std::string json = fmt::sprintf(
R"EOF(
{
"cluster_manager": {
"local_cluster_name": "new_cluster",
},
"static_resources": {
%s
}
}
)EOF",
clustersJson({defaultStaticClusterJson("cluster_1"), defaultStaticClusterJson("cluster_2"),
defaultStaticClusterJson("new_cluster")}));
create(parseBootstrapFromV3Json(json));
checkStats(3 /*added*/, 0 /*modified*/, 0 /*removed*/, 3 /*active*/, 0 /*warming*/);
factory_.tls_.shutdownThread();
}
TEST_F(ClusterManagerImplTest, DuplicateCluster) {
const std::string json = fmt::sprintf(
"{\"static_resources\":{%s}}",
clustersJson({defaultStaticClusterJson("cluster_1"), defaultStaticClusterJson("cluster_1")}));
const auto config = parseBootstrapFromV3Json(json);
EXPECT_THROW(create(config), EnvoyException);
}
TEST_F(ClusterManagerImplTest, ValidClusterName) {
const std::string yaml = R"EOF(
static_resources:
clusters:
- name: cluster:name
connect_timeout: 0.250s
type: static
lb_policy: round_robin
load_assignment:
cluster_name: foo
endpoints:
- lb_endpoints:
- endpoint:
address:
socket_address:
address: 127.0.0.1
port_value: 11001
)EOF";
create(parseBootstrapFromV3Yaml(yaml));
cluster_manager_->clusters()
.active_clusters_.find("cluster:name")
->second.get()
.info()
->statsScope()
.counterFromString("foo")
.inc();
EXPECT_EQ(1UL, factory_.stats_.counter("cluster.cluster_name.foo").value());
}
// Validate that the primary clusters are derived from the bootstrap and don't
// include EDS.
TEST_F(ClusterManagerImplTest, PrimaryClusters) {
const std::string yaml = R"EOF(
static_resources:
clusters:
- name: static_cluster
connect_timeout: 0.250s
type: static
- name: logical_dns_cluster
connect_timeout: 0.250s
type: logical_dns
load_assignment:
endpoints:
- lb_endpoints:
- endpoint:
address:
socket_address:
address: foo.com
port_value: 11001
- name: strict_dns_cluster
connect_timeout: 0.250s
type: strict_dns
load_assignment:
endpoints:
- lb_endpoints:
- endpoint:
address:
socket_address:
address: foo.com
port_value: 11001
- name: rest_eds_cluster
connect_timeout: 0.250s
type: eds
eds_cluster_config:
eds_config:
api_config_source:
api_type: GRPC
transport_api_version: V3
grpc_services:
envoy_grpc:
cluster_name: static_cluster
)EOF";
create(parseBootstrapFromV3Yaml(yaml));
const auto& primary_clusters = cluster_manager_->primaryClusters();
EXPECT_THAT(primary_clusters, testing::UnorderedElementsAre(
"static_cluster", "strict_dns_cluster", "logical_dns_cluster"));
}
TEST_F(ClusterManagerImplTest, OriginalDstLbRestriction) {
const std::string yaml = R"EOF(
static_resources:
clusters:
- name: cluster_1
connect_timeout: 0.250s
type: original_dst
lb_policy: round_robin
)EOF";
EXPECT_THROW_WITH_MESSAGE(
create(parseBootstrapFromV3Yaml(yaml)), EnvoyException,
"cluster: LB policy ROUND_ROBIN is not valid for Cluster type ORIGINAL_DST. Only "
"'CLUSTER_PROVIDED' or 'ORIGINAL_DST_LB' is allowed with cluster type 'ORIGINAL_DST'");
}
TEST_F(ClusterManagerImplTest, DEPRECATED_FEATURE_TEST(OriginalDstLbRestriction2)) {
TestDeprecatedV2Api _deprecated_v2_api;
const std::string yaml = R"EOF(
static_resources:
clusters:
- name: cluster_1
connect_timeout: 0.250s
type: static
lb_policy: original_dst_lb
load_assignment:
endpoints:
- lb_endpoints:
- endpoint:
address:
socket_address:
address: 127.0.0.1
port_value: 11001
)EOF";
EXPECT_THROW_WITH_MESSAGE(create(parseBootstrapFromV3Yaml(yaml, false)), EnvoyException,
"cluster: LB policy hidden_envoy_deprecated_ORIGINAL_DST_LB is not "
"valid for Cluster type STATIC. "
"'ORIGINAL_DST_LB' is allowed only with cluster type 'ORIGINAL_DST'");
}
class ClusterManagerSubsetInitializationTest
: public ClusterManagerImplTest,
public testing::WithParamInterface<envoy::config::cluster::v3::Cluster::LbPolicy> {
public:
ClusterManagerSubsetInitializationTest() = default;
static std::vector<envoy::config::cluster::v3::Cluster::LbPolicy> lbPolicies() {
int first = static_cast<int>(envoy::config::cluster::v3::Cluster::LbPolicy_MIN);
int last = static_cast<int>(envoy::config::cluster::v3::Cluster::LbPolicy_MAX);
ASSERT(first < last);
std::vector<envoy::config::cluster::v3::Cluster::LbPolicy> policies;
for (int i = first; i <= last; i++) {
if (envoy::config::cluster::v3::Cluster::LbPolicy_IsValid(i)) {
auto policy = static_cast<envoy::config::cluster::v3::Cluster::LbPolicy>(i);
if (policy != envoy::config::cluster::v3::Cluster::LOAD_BALANCING_POLICY_CONFIG) {
policies.push_back(policy);
}
}
}
return policies;
}
static std::string paramName(const testing::TestParamInfo<ParamType>& info) {
const std::string& name = envoy::config::cluster::v3::Cluster::LbPolicy_Name(info.param);
return absl::StrReplaceAll(name, {{"_", ""}});
}
};
// Test initialization of subset load balancer with every possible load balancer policy.
TEST_P(ClusterManagerSubsetInitializationTest, SubsetLoadBalancerInitialization) {
const std::string yamlPattern = R"EOF(
static_resources:
clusters:
- name: cluster_1
connect_timeout: 0.250s
{}
lb_policy: "{}"
lb_subset_config:
fallback_policy: ANY_ENDPOINT
subset_selectors:
- keys: [ "x" ]
load_assignment:
cluster_name: cluster_1
endpoints:
- lb_endpoints:
- endpoint:
address:
socket_address:
address: 127.0.0.1
port_value: 8000
- endpoint:
address:
socket_address:
address: 127.0.0.1
port_value: 8001
)EOF";
const std::string& policy_name = envoy::config::cluster::v3::Cluster::LbPolicy_Name(GetParam());
std::string cluster_type = "type: STATIC";
if (GetParam() == envoy::config::cluster::v3::Cluster::hidden_envoy_deprecated_ORIGINAL_DST_LB) {
cluster_type = "type: ORIGINAL_DST";
} else if (GetParam() == envoy::config::cluster::v3::Cluster::CLUSTER_PROVIDED) {
// This custom cluster type is registered by linking test/integration/custom/static_cluster.cc.
cluster_type = "cluster_type: { name: envoy.clusters.custom_static_with_lb }";
}
const std::string yaml = fmt::format(yamlPattern, cluster_type, policy_name);
if (GetParam() == envoy::config::cluster::v3::Cluster::hidden_envoy_deprecated_ORIGINAL_DST_LB ||
GetParam() == envoy::config::cluster::v3::Cluster::CLUSTER_PROVIDED) {
EXPECT_THROW_WITH_MESSAGE(
create(parseBootstrapFromV3Yaml(yaml)), EnvoyException,
fmt::format("cluster: LB policy {} cannot be combined with lb_subset_config",
envoy::config::cluster::v3::Cluster::LbPolicy_Name(GetParam())));
} else {
create(parseBootstrapFromV3Yaml(yaml));
checkStats(1 /*added*/, 0 /*modified*/, 0 /*removed*/, 1 /*active*/, 0 /*warming*/);
Upstream::ThreadLocalCluster* tlc = cluster_manager_->getThreadLocalCluster("cluster_1");
EXPECT_NE(nullptr, tlc);
if (tlc) {
Upstream::LoadBalancer& lb = tlc->loadBalancer();
EXPECT_NE(nullptr, dynamic_cast<Upstream::SubsetLoadBalancer*>(&lb));
}
factory_.tls_.shutdownThread();
}
}
INSTANTIATE_TEST_SUITE_P(ClusterManagerSubsetInitializationTest,
ClusterManagerSubsetInitializationTest,
testing::ValuesIn(ClusterManagerSubsetInitializationTest::lbPolicies()),
ClusterManagerSubsetInitializationTest::paramName);
TEST_F(ClusterManagerImplTest, DEPRECATED_FEATURE_TEST(SubsetLoadBalancerOriginalDstRestriction)) {
TestDeprecatedV2Api _deprecated_v2_api;
const std::string yaml = R"EOF(
static_resources:
clusters:
- name: cluster_1
connect_timeout: 0.250s
type: original_dst
lb_policy: original_dst_lb
lb_subset_config:
fallback_policy: ANY_ENDPOINT
subset_selectors:
- keys: [ "x" ]
)EOF";
EXPECT_THROW_WITH_MESSAGE(create(parseBootstrapFromV3Yaml(yaml, false)), EnvoyException,
"cluster: LB policy hidden_envoy_deprecated_ORIGINAL_DST_LB cannot be "
"combined with lb_subset_config");
}
TEST_F(ClusterManagerImplTest, SubsetLoadBalancerClusterProvidedLbRestriction) {
const std::string yaml = R"EOF(
static_resources:
clusters:
- name: cluster_1
connect_timeout: 0.250s
type: static
lb_policy: cluster_provided
lb_subset_config:
fallback_policy: ANY_ENDPOINT
subset_selectors:
- keys: [ "x" ]
)EOF";
EXPECT_THROW_WITH_MESSAGE(
create(parseBootstrapFromV3Yaml(yaml)), EnvoyException,
"cluster: LB policy CLUSTER_PROVIDED cannot be combined with lb_subset_config");
}
TEST_F(ClusterManagerImplTest, SubsetLoadBalancerLocalityAware) {
const std::string yaml = R"EOF(
static_resources:
clusters:
- name: cluster_1
connect_timeout: 0.250s
type: STATIC
lb_policy: ROUND_ROBIN
lb_subset_config:
fallback_policy: ANY_ENDPOINT
subset_selectors:
- keys: [ "x" ]
locality_weight_aware: true
load_assignment:
cluster_name: cluster_1
endpoints:
- lb_endpoints:
- endpoint:
address:
socket_address:
address: 127.0.0.1
port_value: 8000
- endpoint:
address:
socket_address:
address: 127.0.0.1
port_value: 8001
)EOF";
EXPECT_THROW_WITH_MESSAGE(create(parseBootstrapFromV3Yaml(yaml)), EnvoyException,
"Locality weight aware subset LB requires that a "
"locality_weighted_lb_config be set in cluster_1");
}
TEST_F(ClusterManagerImplTest, RingHashLoadBalancerInitialization) {
const std::string yaml = R"EOF(
static_resources:
clusters:
- name: redis_cluster
lb_policy: RING_HASH
ring_hash_lb_config:
minimum_ring_size: 125
connect_timeout: 0.250s
type: STATIC
load_assignment:
cluster_name: redis_cluster
endpoints:
- lb_endpoints:
- endpoint:
address:
socket_address:
address: 127.0.0.1
port_value: 8000
- endpoint:
address:
socket_address:
address: 127.0.0.1
port_value: 8001
)EOF";
create(parseBootstrapFromV3Yaml(yaml));
}
TEST_F(ClusterManagerImplTest, RingHashLoadBalancerV2Initialization) {
const std::string yaml = R"EOF(
static_resources:
clusters:
- name: redis_cluster
connect_timeout: 0.250s
lb_policy: RING_HASH
load_assignment:
cluster_name: redis_cluster
endpoints:
- lb_endpoints:
- endpoint:
address:
socket_address:
address: 127.0.0.1
port_value: 8000
- endpoint:
address:
socket_address:
address: 127.0.0.1
port_value: 8001
dns_lookup_family: V4_ONLY
ring_hash_lb_config:
minimum_ring_size: 125
)EOF";
create(parseBootstrapFromV3Yaml(yaml));
}
// Verify EDS clusters have EDS config.
TEST_F(ClusterManagerImplTest, EdsClustersRequireEdsConfig) {
const std::string yaml = R"EOF(
static_resources:
clusters:
- name: cluster_0
type: EDS
)EOF";
EXPECT_THROW_WITH_MESSAGE(create(parseBootstrapFromV3Yaml(yaml)), EnvoyException,
"cannot create an EDS cluster without an EDS config");
}
// Verify that specifying a cluster provided LB, but the cluster doesn't provide one is an error.
TEST_F(ClusterManagerImplTest, ClusterProvidedLbNoLb) {
const std::string json = fmt::sprintf("{\"static_resources\":{%s}}",
clustersJson({defaultStaticClusterJson("cluster_0")}));
std::shared_ptr<MockClusterMockPrioritySet> cluster1(new NiceMock<MockClusterMockPrioritySet>());
cluster1->info_->name_ = "cluster_0";
cluster1->info_->lb_type_ = LoadBalancerType::ClusterProvided;
EXPECT_CALL(factory_, clusterFromProto_(_, _, _, _))
.WillOnce(Return(std::make_pair(cluster1, nullptr)));
EXPECT_THROW_WITH_MESSAGE(create(parseBootstrapFromV3Json(json)), EnvoyException,
"cluster manager: cluster provided LB specified but cluster "
"'cluster_0' did not provide one. Check cluster documentation.");
}
// Verify that not specifying a cluster provided LB, but the cluster does provide one is an error.
TEST_F(ClusterManagerImplTest, ClusterProvidedLbNotConfigured) {
const std::string json = fmt::sprintf("{\"static_resources\":{%s}}",
clustersJson({defaultStaticClusterJson("cluster_0")}));
std::shared_ptr<MockClusterMockPrioritySet> cluster1(new NiceMock<MockClusterMockPrioritySet>());
cluster1->info_->name_ = "cluster_0";
EXPECT_CALL(factory_, clusterFromProto_(_, _, _, _))
.WillOnce(Return(std::make_pair(cluster1, new MockThreadAwareLoadBalancer())));
EXPECT_THROW_WITH_MESSAGE(create(parseBootstrapFromV3Json(json)), EnvoyException,
"cluster manager: cluster provided LB not specified but cluster "
"'cluster_0' provided one. Check cluster documentation.");
}
class ClusterManagerImplThreadAwareLbTest : public ClusterManagerImplTest {
public:
void doTest(LoadBalancerType lb_type) {
const std::string json = fmt::sprintf("{\"static_resources\":{%s}}",
clustersJson({defaultStaticClusterJson("cluster_0")}));
std::shared_ptr<MockClusterMockPrioritySet> cluster1(
new NiceMock<MockClusterMockPrioritySet>());
cluster1->info_->name_ = "cluster_0";
cluster1->info_->lb_type_ = lb_type;
InSequence s;
EXPECT_CALL(factory_, clusterFromProto_(_, _, _, _))
.WillOnce(Return(std::make_pair(cluster1, nullptr)));
ON_CALL(*cluster1, initializePhase()).WillByDefault(Return(Cluster::InitializePhase::Primary));
create(parseBootstrapFromV3Json(json));
EXPECT_EQ(nullptr, cluster_manager_->getThreadLocalCluster("cluster_0"));
cluster1->prioritySet().getMockHostSet(0)->hosts_ = {
makeTestHost(cluster1->info_, "tcp://127.0.0.1:80", time_system_)};
cluster1->prioritySet().getMockHostSet(0)->runCallbacks(
cluster1->prioritySet().getMockHostSet(0)->hosts_, {});
cluster1->initialize_callback_();
EXPECT_EQ(
cluster1->prioritySet().getMockHostSet(0)->hosts_[0],
cluster_manager_->getThreadLocalCluster("cluster_0")->loadBalancer().chooseHost(nullptr));
}
};
// Test that the cluster manager correctly re-creates the worker local LB when there is a host
// set change.
TEST_F(ClusterManagerImplThreadAwareLbTest, RingHashLoadBalancerThreadAwareUpdate) {
doTest(LoadBalancerType::RingHash);
}
// Test that the cluster manager correctly re-creates the worker local LB when there is a host
// set change.
TEST_F(ClusterManagerImplThreadAwareLbTest, MaglevLoadBalancerThreadAwareUpdate) {
doTest(LoadBalancerType::Maglev);
}
TEST_F(ClusterManagerImplTest, TcpHealthChecker) {
const std::string yaml = R"EOF(
static_resources:
clusters:
- name: cluster_1
connect_timeout: 0.250s
type: STATIC
lb_policy: ROUND_ROBIN
load_assignment:
cluster_name: cluster_1
endpoints:
- lb_endpoints:
- endpoint:
address:
socket_address:
address: 127.0.0.1
port_value: 11001
health_checks:
- timeout: 1s
interval: 1s
unhealthy_threshold: 2
healthy_threshold: 2
tcp_health_check:
send:
text: '01'
receive:
- text: '02'
)EOF";
Network::MockClientConnection* connection = new NiceMock<Network::MockClientConnection>();
EXPECT_CALL(factory_.dispatcher_,
createClientConnection_(
PointeesEq(Network::Utility::resolveUrl("tcp://127.0.0.1:11001")), _, _, _))
.WillOnce(Return(connection));
create(parseBootstrapFromV3Yaml(yaml));
factory_.tls_.shutdownThread();
}
TEST_F(ClusterManagerImplTest, HttpHealthChecker) {
const std::string yaml = R"EOF(
static_resources:
clusters:
- name: cluster_1
connect_timeout: 0.250s
type: STATIC
lb_policy: ROUND_ROBIN
load_assignment:
cluster_name: cluster_1
endpoints:
- lb_endpoints:
- endpoint:
address:
socket_address:
address: 127.0.0.1
port_value: 11001
health_checks:
- timeout: 1s
interval: 1s
unhealthy_threshold: 2
healthy_threshold: 2
http_health_check:
path: "/healthcheck"
)EOF";
Network::MockClientConnection* connection = new NiceMock<Network::MockClientConnection>();
EXPECT_CALL(factory_.dispatcher_,
createClientConnection_(
PointeesEq(Network::Utility::resolveUrl("tcp://127.0.0.1:11001")), _, _, _))
.WillOnce(Return(connection));
create(parseBootstrapFromV3Yaml(yaml));
factory_.tls_.shutdownThread();
}
TEST_F(ClusterManagerImplTest, UnknownCluster) {
const std::string json = fmt::sprintf("{\"static_resources\":{%s}}",
clustersJson({defaultStaticClusterJson("cluster_1")}));
create(parseBootstrapFromV3Json(json));
EXPECT_EQ(nullptr, cluster_manager_->getThreadLocalCluster("hello"));
factory_.tls_.shutdownThread();
}
/**
* Test that buffer limits are set on new TCP connections.
*/
TEST_F(ClusterManagerImplTest, VerifyBufferLimits) {
const std::string yaml = R"EOF(
static_resources:
clusters:
- name: cluster_1
connect_timeout: 0.250s
type: static
lb_policy: round_robin
per_connection_buffer_limit_bytes: 8192
load_assignment:
cluster_name: cluster_1
endpoints:
- lb_endpoints:
- endpoint:
address:
socket_address:
address: 127.0.0.1
port_value: 11001
)EOF";
create(parseBootstrapFromV3Yaml(yaml));
Network::MockClientConnection* connection = new NiceMock<Network::MockClientConnection>();
EXPECT_CALL(*connection, setBufferLimits(8192));
EXPECT_CALL(factory_.tls_.dispatcher_, createClientConnection_(_, _, _, _))
.WillOnce(Return(connection));
auto conn_data = cluster_manager_->getThreadLocalCluster("cluster_1")->tcpConn(nullptr);
EXPECT_EQ(connection, conn_data.connection_.get());
factory_.tls_.shutdownThread();
}
TEST_F(ClusterManagerImplTest, ShutdownOrder) {
const std::string json = fmt::sprintf("{\"static_resources\":{%s}}",
clustersJson({defaultStaticClusterJson("cluster_1")}));
create(parseBootstrapFromV3Json(json));
Cluster& cluster = cluster_manager_->activeClusters().begin()->second;
EXPECT_EQ("cluster_1", cluster.info()->name());
EXPECT_EQ(cluster.info(), cluster_manager_->getThreadLocalCluster("cluster_1")->info());
EXPECT_EQ(1UL, cluster_manager_->getThreadLocalCluster("cluster_1")
->prioritySet()
.hostSetsPerPriority()[0]
->hosts()
.size());
EXPECT_EQ(
cluster.prioritySet().hostSetsPerPriority()[0]->hosts()[0],
cluster_manager_->getThreadLocalCluster("cluster_1")->loadBalancer().chooseHost(nullptr));
// Local reference, primary reference, thread local reference, host reference, async client
// reference.
EXPECT_EQ(5U, cluster.info().use_count());
// Thread local reference should be gone.
factory_.tls_.shutdownThread();
EXPECT_EQ(3U, cluster.info().use_count());
}
TEST_F(ClusterManagerImplTest, InitializeOrder) {
time_system_.setSystemTime(std::chrono::milliseconds(1234567891234));
const std::string json = fmt::sprintf(
R"EOF(
{
"dynamic_resources": {
"cds_config": {
"api_config_source": {
"api_type": "0",
"refresh_delay": "30s",
"cluster_names": ["cds_cluster"]
}
}
},
"static_resources": {
%s
}
}
)EOF",
clustersJson({defaultStaticClusterJson("cds_cluster"),
defaultStaticClusterJson("fake_cluster"),
defaultStaticClusterJson("fake_cluster2")}));
MockCdsApi* cds = new MockCdsApi();
std::shared_ptr<MockClusterMockPrioritySet> cds_cluster(
new NiceMock<MockClusterMockPrioritySet>());
cds_cluster->info_->name_ = "cds_cluster";
std::shared_ptr<MockClusterMockPrioritySet> cluster1(new NiceMock<MockClusterMockPrioritySet>());
std::shared_ptr<MockClusterMockPrioritySet> cluster2(new NiceMock<MockClusterMockPrioritySet>());
cluster2->info_->name_ = "fake_cluster2";
cluster2->info_->lb_type_ = LoadBalancerType::RingHash;
// This part tests static init.
InSequence s;
EXPECT_CALL(factory_, clusterFromProto_(_, _, _, _))
.WillOnce(Return(std::make_pair(cds_cluster, nullptr)));
ON_CALL(*cds_cluster, initializePhase()).WillByDefault(Return(Cluster::InitializePhase::Primary));
EXPECT_CALL(factory_, clusterFromProto_(_, _, _, _))
.WillOnce(Return(std::make_pair(cluster1, nullptr)));
ON_CALL(*cluster1, initializePhase()).WillByDefault(Return(Cluster::InitializePhase::Primary));
EXPECT_CALL(factory_, clusterFromProto_(_, _, _, _))
.WillOnce(Return(std::make_pair(cluster2, nullptr)));
ON_CALL(*cluster2, initializePhase()).WillByDefault(Return(Cluster::InitializePhase::Secondary));
EXPECT_CALL(factory_, createCds_()).WillOnce(Return(cds));
EXPECT_CALL(*cds, setInitializedCb(_));
EXPECT_CALL(*cds_cluster, initialize(_));
EXPECT_CALL(*cluster1, initialize(_));
create(parseBootstrapFromV3Json(json));
ReadyWatcher initialized;
cluster_manager_->setInitializedCb([&]() -> void { initialized.ready(); });
EXPECT_CALL(*cluster2, initialize(_));
cds_cluster->initialize_callback_();
cluster1->initialize_callback_();