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tcp_proxy_integration_test.cc
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#include "test/integration/tcp_proxy_integration_test.h"
#include <memory>
#include "envoy/config/bootstrap/v3/bootstrap.pb.h"
#include "envoy/config/cluster/v3/cluster.pb.h"
#include "envoy/config/core/v3/base.pb.h"
#include "envoy/config/filter/network/tcp_proxy/v2/tcp_proxy.pb.h"
#include "envoy/extensions/access_loggers/file/v3/file.pb.h"
#include "envoy/extensions/filters/network/tcp_proxy/v3/tcp_proxy.pb.h"
#include "common/config/api_version.h"
#include "common/network/utility.h"
#include "extensions/filters/network/common/factory_base.h"
#include "extensions/transport_sockets/tls/context_manager_impl.h"
#include "test/integration/ssl_utility.h"
#include "test/integration/tcp_proxy_integration_test.pb.h"
#include "test/integration/tcp_proxy_integration_test.pb.validate.h"
#include "test/integration/utility.h"
#include "test/test_common/registry.h"
#include "gtest/gtest.h"
using testing::_;
using testing::Invoke;
using testing::MatchesRegex;
using testing::NiceMock;
namespace Envoy {
std::vector<TcpProxyIntegrationTestParams> getProtocolTestParams() {
std::vector<TcpProxyIntegrationTestParams> ret;
for (auto ip_version : TestEnvironment::getIpVersionsForTest()) {
ret.push_back(TcpProxyIntegrationTestParams{ip_version, true});
ret.push_back(TcpProxyIntegrationTestParams{ip_version, false});
}
return ret;
}
std::string
protocolTestParamsToString(const ::testing::TestParamInfo<TcpProxyIntegrationTestParams>& params) {
return absl::StrCat(
(params.param.version == Network::Address::IpVersion::v4 ? "IPv4_" : "IPv6_"),
(params.param.test_original_version == true ? "OriginalConnPool" : "NewConnPool"));
}
void TcpProxyIntegrationTest::initialize() {
if (GetParam().test_original_version) {
config_helper_.addRuntimeOverride("envoy.reloadable_features.new_tcp_connection_pool", "false");
} else {
config_helper_.addRuntimeOverride("envoy.reloadable_features.new_tcp_connection_pool", "true");
}
config_helper_.renameListener("tcp_proxy");
BaseIntegrationTest::initialize();
}
INSTANTIATE_TEST_SUITE_P(TcpProxyIntegrationTestParams, TcpProxyIntegrationTest,
testing::ValuesIn(getProtocolTestParams()), protocolTestParamsToString);
// Test upstream writing before downstream downstream does.
TEST_P(TcpProxyIntegrationTest, TcpProxyUpstreamWritesFirst) {
initialize();
IntegrationTcpClientPtr tcp_client = makeTcpConnection(lookupPort("tcp_proxy"));
FakeRawConnectionPtr fake_upstream_connection;
ASSERT_TRUE(fake_upstreams_[0]->waitForRawConnection(fake_upstream_connection));
ASSERT_TRUE(fake_upstream_connection->write("hello"));
tcp_client->waitForData("hello");
// Make sure inexact matches work also on data already received.
tcp_client->waitForData("ello", false);
// Make sure length based wait works for the data already received
ASSERT_TRUE(tcp_client->waitForData(5));
ASSERT_TRUE(tcp_client->waitForData(4));
// Drain part of the received message
tcp_client->clearData(2);
tcp_client->waitForData("llo");
ASSERT_TRUE(tcp_client->waitForData(3));
ASSERT_TRUE(tcp_client->write("hello"));
ASSERT_TRUE(fake_upstream_connection->waitForData(5));
ASSERT_TRUE(fake_upstream_connection->write("", true));
tcp_client->waitForHalfClose();
ASSERT_TRUE(tcp_client->write("", true));
ASSERT_TRUE(fake_upstream_connection->waitForHalfClose());
ASSERT_TRUE(fake_upstream_connection->waitForDisconnect());
}
// Test proxying data in both directions, and that all data is flushed properly
// when there is an upstream disconnect.
TEST_P(TcpProxyIntegrationTest, TcpProxyUpstreamDisconnect) {
initialize();
IntegrationTcpClientPtr tcp_client = makeTcpConnection(lookupPort("tcp_proxy"));
ASSERT_TRUE(tcp_client->write("hello"));
FakeRawConnectionPtr fake_upstream_connection;
ASSERT_TRUE(fake_upstreams_[0]->waitForRawConnection(fake_upstream_connection));
ASSERT_TRUE(fake_upstream_connection->waitForData(5));
ASSERT_TRUE(fake_upstream_connection->write("world"));
ASSERT_TRUE(fake_upstream_connection->close());
ASSERT_TRUE(fake_upstream_connection->waitForDisconnect());
tcp_client->waitForHalfClose();
tcp_client->close();
EXPECT_EQ("world", tcp_client->data());
}
// Test proxying data in both directions, and that all data is flushed properly
// when the client disconnects.
TEST_P(TcpProxyIntegrationTest, TcpProxyDownstreamDisconnect) {
initialize();
IntegrationTcpClientPtr tcp_client = makeTcpConnection(lookupPort("tcp_proxy"));
ASSERT_TRUE(tcp_client->write("hello"));
FakeRawConnectionPtr fake_upstream_connection;
ASSERT_TRUE(fake_upstreams_[0]->waitForRawConnection(fake_upstream_connection));
ASSERT_TRUE(fake_upstream_connection->waitForData(5));
ASSERT_TRUE(fake_upstream_connection->write("world"));
tcp_client->waitForData("world");
ASSERT_TRUE(tcp_client->write("hello", true));
ASSERT_TRUE(fake_upstream_connection->waitForData(10));
ASSERT_TRUE(fake_upstream_connection->waitForHalfClose());
ASSERT_TRUE(fake_upstream_connection->write("", true));
ASSERT_TRUE(fake_upstream_connection->waitForDisconnect());
tcp_client->waitForDisconnect();
}
TEST_P(TcpProxyIntegrationTest, NoUpstream) {
// Set the first upstream to have an invalid port, so connection will fail,
// but it won't fail synchronously (as it would if there were simply no
// upstreams)
fake_upstreams_count_ = 0;
config_helper_.addConfigModifier([&](envoy::config::bootstrap::v3::Bootstrap& bootstrap) -> void {
auto* cluster = bootstrap.mutable_static_resources()->mutable_clusters(0);
auto* lb_endpoint =
cluster->mutable_load_assignment()->mutable_endpoints(0)->mutable_lb_endpoints(0);
lb_endpoint->mutable_endpoint()->mutable_address()->mutable_socket_address()->set_port_value(1);
});
config_helper_.skipPortUsageValidation();
enable_half_close_ = false;
initialize();
IntegrationTcpClientPtr tcp_client = makeTcpConnection(lookupPort("tcp_proxy"));
tcp_client->waitForDisconnect();
}
TEST_P(TcpProxyIntegrationTest, TcpProxyLargeWrite) {
config_helper_.setBufferLimits(1024, 1024);
initialize();
std::string data(1024 * 16, 'a');
IntegrationTcpClientPtr tcp_client = makeTcpConnection(lookupPort("tcp_proxy"));
ASSERT_TRUE(tcp_client->write(data));
FakeRawConnectionPtr fake_upstream_connection;
ASSERT_TRUE(fake_upstreams_[0]->waitForRawConnection(fake_upstream_connection));
ASSERT_TRUE(fake_upstream_connection->waitForData(data.size()));
ASSERT_TRUE(fake_upstream_connection->write(data));
tcp_client->waitForData(data);
tcp_client->close();
ASSERT_TRUE(fake_upstream_connection->waitForHalfClose());
ASSERT_TRUE(fake_upstream_connection->close());
ASSERT_TRUE(fake_upstream_connection->waitForDisconnect());
uint32_t upstream_pauses =
test_server_->counter("cluster.cluster_0.upstream_flow_control_paused_reading_total")
->value();
uint32_t upstream_resumes =
test_server_->counter("cluster.cluster_0.upstream_flow_control_resumed_reading_total")
->value();
EXPECT_EQ(upstream_pauses, upstream_resumes);
uint32_t downstream_pauses =
test_server_->counter("tcp.tcp_stats.downstream_flow_control_paused_reading_total")->value();
uint32_t downstream_resumes =
test_server_->counter("tcp.tcp_stats.downstream_flow_control_resumed_reading_total")->value();
EXPECT_EQ(downstream_pauses, downstream_resumes);
}
// Test that a downstream flush works correctly (all data is flushed)
TEST_P(TcpProxyIntegrationTest, TcpProxyDownstreamFlush) {
// Use a very large size to make sure it is larger than the kernel socket read buffer.
const uint32_t size = 50 * 1024 * 1024;
config_helper_.setBufferLimits(size / 4, size / 4);
initialize();
std::string data(size, 'a');
IntegrationTcpClientPtr tcp_client = makeTcpConnection(lookupPort("tcp_proxy"));
FakeRawConnectionPtr fake_upstream_connection;
ASSERT_TRUE(fake_upstreams_[0]->waitForRawConnection(fake_upstream_connection));
tcp_client->readDisable(true);
ASSERT_TRUE(tcp_client->write("", true));
// This ensures that readDisable(true) has been run on it's thread
// before tcp_client starts writing.
ASSERT_TRUE(fake_upstream_connection->waitForHalfClose());
ASSERT_TRUE(fake_upstream_connection->write(data, true));
test_server_->waitForCounterGe("cluster.cluster_0.upstream_flow_control_paused_reading_total", 1);
EXPECT_EQ(test_server_->counter("cluster.cluster_0.upstream_flow_control_resumed_reading_total")
->value(),
0);
tcp_client->readDisable(false);
tcp_client->waitForData(data);
tcp_client->waitForHalfClose();
ASSERT_TRUE(fake_upstream_connection->waitForHalfClose());
uint32_t upstream_pauses =
test_server_->counter("cluster.cluster_0.upstream_flow_control_paused_reading_total")
->value();
uint32_t upstream_resumes =
test_server_->counter("cluster.cluster_0.upstream_flow_control_resumed_reading_total")
->value();
EXPECT_GE(upstream_pauses, upstream_resumes);
EXPECT_GT(upstream_resumes, 0);
}
// Test that an upstream flush works correctly (all data is flushed)
TEST_P(TcpProxyIntegrationTest, TcpProxyUpstreamFlush) {
// Use a very large size to make sure it is larger than the kernel socket read buffer.
const uint32_t size = 50 * 1024 * 1024;
config_helper_.setBufferLimits(size, size);
initialize();
std::string data(size, 'a');
IntegrationTcpClientPtr tcp_client = makeTcpConnection(lookupPort("tcp_proxy"));
FakeRawConnectionPtr fake_upstream_connection;
ASSERT_TRUE(fake_upstreams_[0]->waitForRawConnection(fake_upstream_connection));
ASSERT_TRUE(fake_upstream_connection->readDisable(true));
ASSERT_TRUE(fake_upstream_connection->write("", true));
// This ensures that fake_upstream_connection->readDisable has been run on it's thread
// before tcp_client starts writing.
tcp_client->waitForHalfClose();
ASSERT_TRUE(tcp_client->write(data, true, true, std::chrono::milliseconds(30000)));
test_server_->waitForGaugeEq("tcp.tcp_stats.upstream_flush_active", 1);
ASSERT_TRUE(fake_upstream_connection->readDisable(false));
ASSERT_TRUE(fake_upstream_connection->waitForData(data.size()));
ASSERT_TRUE(fake_upstream_connection->waitForHalfClose());
ASSERT_TRUE(fake_upstream_connection->waitForDisconnect());
tcp_client->waitForHalfClose();
EXPECT_EQ(test_server_->counter("tcp.tcp_stats.upstream_flush_total")->value(), 1);
test_server_->waitForGaugeEq("tcp.tcp_stats.upstream_flush_active", 0);
}
// Test that Envoy doesn't crash or assert when shutting down with an upstream flush active
TEST_P(TcpProxyIntegrationTest, TcpProxyUpstreamFlushEnvoyExit) {
// Use a very large size to make sure it is larger than the kernel socket read buffer.
const uint32_t size = 50 * 1024 * 1024;
config_helper_.setBufferLimits(size, size);
initialize();
std::string data(size, 'a');
IntegrationTcpClientPtr tcp_client = makeTcpConnection(lookupPort("tcp_proxy"));
FakeRawConnectionPtr fake_upstream_connection;
ASSERT_TRUE(fake_upstreams_[0]->waitForRawConnection(fake_upstream_connection));
ASSERT_TRUE(fake_upstream_connection->readDisable(true));
ASSERT_TRUE(fake_upstream_connection->write("", true));
// This ensures that fake_upstream_connection->readDisable has been run on it's thread
// before tcp_client starts writing.
tcp_client->waitForHalfClose();
ASSERT_TRUE(tcp_client->write(data, true));
test_server_->waitForGaugeEq("tcp.tcp_stats.upstream_flush_active", 1);
test_server_.reset();
ASSERT_TRUE(fake_upstream_connection->close());
ASSERT_TRUE(fake_upstream_connection->waitForDisconnect());
// Success criteria is that no ASSERTs fire and there are no leaks.
}
TEST_P(TcpProxyIntegrationTest, AccessLog) {
std::string access_log_path = TestEnvironment::temporaryPath(
fmt::format("access_log{}.txt", version_ == Network::Address::IpVersion::v4 ? "v4" : "v6"));
config_helper_.addConfigModifier([&](envoy::config::bootstrap::v3::Bootstrap& bootstrap) -> void {
auto* listener = bootstrap.mutable_static_resources()->mutable_listeners(0);
auto* filter_chain = listener->mutable_filter_chains(0);
auto* config_blob = filter_chain->mutable_filters(0)->mutable_typed_config();
ASSERT_TRUE(
config_blob->Is<API_NO_BOOST(envoy::config::filter::network::tcp_proxy::v2::TcpProxy)>());
auto tcp_proxy_config = MessageUtil::anyConvert<API_NO_BOOST(
envoy::config::filter::network::tcp_proxy::v2::TcpProxy)>(*config_blob);
auto* access_log = tcp_proxy_config.add_access_log();
access_log->set_name("accesslog");
envoy::extensions::access_loggers::file::v3::FileAccessLog access_log_config;
access_log_config.set_path(access_log_path);
access_log_config.mutable_log_format()->set_text_format(
"upstreamlocal=%UPSTREAM_LOCAL_ADDRESS% "
"upstreamhost=%UPSTREAM_HOST% downstream=%DOWNSTREAM_REMOTE_ADDRESS_WITHOUT_PORT% "
"sent=%BYTES_SENT% received=%BYTES_RECEIVED%\n");
access_log->mutable_typed_config()->PackFrom(access_log_config);
auto* runtime_filter = access_log->mutable_filter()->mutable_runtime_filter();
runtime_filter->set_runtime_key("unused-key");
auto* percent_sampled = runtime_filter->mutable_percent_sampled();
percent_sampled->set_numerator(100);
percent_sampled->set_denominator(
envoy::type::FractionalPercent::DenominatorType::FractionalPercent_DenominatorType_HUNDRED);
config_blob->PackFrom(tcp_proxy_config);
});
initialize();
IntegrationTcpClientPtr tcp_client = makeTcpConnection(lookupPort("tcp_proxy"));
FakeRawConnectionPtr fake_upstream_connection;
ASSERT_TRUE(fake_upstreams_[0]->waitForRawConnection(fake_upstream_connection));
ASSERT_TRUE(fake_upstream_connection->write("hello"));
tcp_client->waitForData("hello");
ASSERT_TRUE(fake_upstream_connection->write("", true));
tcp_client->waitForHalfClose();
ASSERT_TRUE(tcp_client->write("", true));
ASSERT_TRUE(fake_upstream_connection->waitForHalfClose());
ASSERT_TRUE(fake_upstream_connection->waitForDisconnect());
std::string log_result;
// Access logs only get flushed to disk periodically, so poll until the log is non-empty
do {
log_result = api_->fileSystem().fileReadToEnd(access_log_path);
} while (log_result.empty());
// Regex matching localhost:port
#ifndef GTEST_USES_SIMPLE_RE
const std::string ip_port_regex = (version_ == Network::Address::IpVersion::v4)
? R"EOF(127\.0\.0\.1:[0-9]+)EOF"
: R"EOF(\[::1\]:[0-9]+)EOF";
#else
const std::string ip_port_regex = (version_ == Network::Address::IpVersion::v4)
? R"EOF(127\.0\.0\.1:\d+)EOF"
: R"EOF(\[::1\]:\d+)EOF";
#endif
const std::string ip_regex =
(version_ == Network::Address::IpVersion::v4) ? R"EOF(127\.0\.0\.1)EOF" : R"EOF(::1)EOF";
// Test that all three addresses were populated correctly. Only check the first line of
// log output for simplicity.
EXPECT_THAT(log_result,
MatchesRegex(fmt::format(
"upstreamlocal={0} upstreamhost={0} downstream={1} sent=5 received=0\r?\n.*",
ip_port_regex, ip_regex)));
}
// Test that the server shuts down without crashing when connections are open.
TEST_P(TcpProxyIntegrationTest, ShutdownWithOpenConnections) {
config_helper_.addConfigModifier([&](envoy::config::bootstrap::v3::Bootstrap& bootstrap) -> void {
auto* static_resources = bootstrap.mutable_static_resources();
for (int i = 0; i < static_resources->clusters_size(); ++i) {
auto* cluster = static_resources->mutable_clusters(i);
cluster->set_close_connections_on_host_health_failure(true);
}
});
initialize();
IntegrationTcpClientPtr tcp_client = makeTcpConnection(lookupPort("tcp_proxy"));
ASSERT_TRUE(tcp_client->write("hello"));
FakeRawConnectionPtr fake_upstream_connection;
ASSERT_TRUE(fake_upstreams_[0]->waitForRawConnection(fake_upstream_connection));
ASSERT_TRUE(fake_upstream_connection->waitForData(5));
ASSERT_TRUE(fake_upstream_connection->write("world"));
tcp_client->waitForData("world");
ASSERT_TRUE(tcp_client->write("hello", false));
ASSERT_TRUE(fake_upstream_connection->waitForData(10));
test_server_.reset();
ASSERT_TRUE(fake_upstream_connection->waitForHalfClose());
ASSERT_TRUE(fake_upstream_connection->close());
ASSERT_TRUE(fake_upstream_connection->waitForDisconnect());
tcp_client->waitForHalfClose();
tcp_client->close();
// Success criteria is that no ASSERTs fire and there are no leaks.
}
TEST_P(TcpProxyIntegrationTest, TestIdletimeoutWithNoData) {
autonomous_upstream_ = true;
enable_half_close_ = false;
config_helper_.addConfigModifier([&](envoy::config::bootstrap::v3::Bootstrap& bootstrap) -> void {
auto* listener = bootstrap.mutable_static_resources()->mutable_listeners(0);
auto* filter_chain = listener->mutable_filter_chains(0);
auto* config_blob = filter_chain->mutable_filters(0)->mutable_typed_config();
ASSERT_TRUE(
config_blob->Is<API_NO_BOOST(envoy::config::filter::network::tcp_proxy::v2::TcpProxy)>());
auto tcp_proxy_config = MessageUtil::anyConvert<API_NO_BOOST(
envoy::config::filter::network::tcp_proxy::v2::TcpProxy)>(*config_blob);
tcp_proxy_config.mutable_idle_timeout()->set_nanos(
std::chrono::duration_cast<std::chrono::nanoseconds>(std::chrono::milliseconds(100))
.count());
config_blob->PackFrom(tcp_proxy_config);
});
initialize();
IntegrationTcpClientPtr tcp_client = makeTcpConnection(lookupPort("tcp_proxy"));
tcp_client->waitForDisconnect();
}
TEST_P(TcpProxyIntegrationTest, TestIdletimeoutWithLargeOutstandingData) {
config_helper_.setBufferLimits(1024, 1024);
enable_half_close_ = false;
config_helper_.addConfigModifier([&](envoy::config::bootstrap::v3::Bootstrap& bootstrap) -> void {
auto* listener = bootstrap.mutable_static_resources()->mutable_listeners(0);
auto* filter_chain = listener->mutable_filter_chains(0);
auto* config_blob = filter_chain->mutable_filters(0)->mutable_typed_config();
ASSERT_TRUE(
config_blob->Is<API_NO_BOOST(envoy::config::filter::network::tcp_proxy::v2::TcpProxy)>());
auto tcp_proxy_config = MessageUtil::anyConvert<API_NO_BOOST(
envoy::config::filter::network::tcp_proxy::v2::TcpProxy)>(*config_blob);
tcp_proxy_config.mutable_idle_timeout()->set_nanos(
std::chrono::duration_cast<std::chrono::nanoseconds>(std::chrono::milliseconds(500))
.count());
config_blob->PackFrom(tcp_proxy_config);
});
initialize();
IntegrationTcpClientPtr tcp_client = makeTcpConnection(lookupPort("tcp_proxy"));
FakeRawConnectionPtr fake_upstream_connection;
ASSERT_TRUE(fake_upstreams_[0]->waitForRawConnection(fake_upstream_connection));
std::string data(1024 * 16, 'a');
ASSERT_TRUE(tcp_client->write(data));
ASSERT_TRUE(fake_upstream_connection->write(data));
tcp_client->waitForDisconnect();
ASSERT_TRUE(fake_upstream_connection->waitForDisconnect());
}
TEST_P(TcpProxyIntegrationTest, TestMaxDownstreamConnectionDurationWithNoData) {
autonomous_upstream_ = true;
enable_half_close_ = false;
config_helper_.addConfigModifier([&](envoy::config::bootstrap::v3::Bootstrap& bootstrap) -> void {
auto* listener = bootstrap.mutable_static_resources()->mutable_listeners(0);
auto* filter_chain = listener->mutable_filter_chains(0);
auto* config_blob = filter_chain->mutable_filters(0)->mutable_typed_config();
ASSERT_TRUE(
config_blob->Is<API_NO_BOOST(envoy::config::filter::network::tcp_proxy::v2::TcpProxy)>());
auto tcp_proxy_config =
MessageUtil::anyConvert<envoy::extensions::filters::network::tcp_proxy::v3::TcpProxy>(
*config_blob);
tcp_proxy_config.mutable_max_downstream_connection_duration()->set_nanos(
std::chrono::duration_cast<std::chrono::nanoseconds>(std::chrono::milliseconds(100))
.count());
config_blob->PackFrom(tcp_proxy_config);
});
initialize();
IntegrationTcpClientPtr tcp_client = makeTcpConnection(lookupPort("tcp_proxy"));
tcp_client->waitForDisconnect();
}
TEST_P(TcpProxyIntegrationTest, TestMaxDownstreamConnectionDurationWithLargeOutstandingData) {
config_helper_.setBufferLimits(1024, 1024);
enable_half_close_ = false;
config_helper_.addConfigModifier([&](envoy::config::bootstrap::v3::Bootstrap& bootstrap) -> void {
auto* listener = bootstrap.mutable_static_resources()->mutable_listeners(0);
auto* filter_chain = listener->mutable_filter_chains(0);
auto* config_blob = filter_chain->mutable_filters(0)->mutable_typed_config();
ASSERT_TRUE(
config_blob->Is<API_NO_BOOST(envoy::config::filter::network::tcp_proxy::v2::TcpProxy)>());
auto tcp_proxy_config =
MessageUtil::anyConvert<envoy::extensions::filters::network::tcp_proxy::v3::TcpProxy>(
*config_blob);
tcp_proxy_config.mutable_max_downstream_connection_duration()->set_nanos(
std::chrono::duration_cast<std::chrono::nanoseconds>(std::chrono::milliseconds(500))
.count());
config_blob->PackFrom(tcp_proxy_config);
});
initialize();
IntegrationTcpClientPtr tcp_client = makeTcpConnection(lookupPort("tcp_proxy"));
FakeRawConnectionPtr fake_upstream_connection;
ASSERT_TRUE(fake_upstreams_[0]->waitForRawConnection(fake_upstream_connection));
std::string data(1024 * 16, 'a');
ASSERT_TRUE(tcp_client->write(data));
ASSERT_TRUE(fake_upstream_connection->write(data));
tcp_client->waitForDisconnect();
ASSERT_TRUE(fake_upstream_connection->waitForDisconnect());
}
TEST_P(TcpProxyIntegrationTest, TestNoCloseOnHealthFailure) {
concurrency_ = 2;
config_helper_.addConfigModifier([&](envoy::config::bootstrap::v3::Bootstrap& bootstrap) -> void {
auto* static_resources = bootstrap.mutable_static_resources();
for (int i = 0; i < static_resources->clusters_size(); ++i) {
auto* cluster = static_resources->mutable_clusters(i);
cluster->set_close_connections_on_host_health_failure(false);
cluster->mutable_common_lb_config()->mutable_healthy_panic_threshold()->set_value(0);
cluster->add_health_checks()->mutable_timeout()->set_seconds(20);
cluster->mutable_health_checks(0)->mutable_reuse_connection()->set_value(true);
cluster->mutable_health_checks(0)->mutable_interval()->set_seconds(1);
cluster->mutable_health_checks(0)->mutable_no_traffic_interval()->set_seconds(1);
cluster->mutable_health_checks(0)->mutable_unhealthy_threshold()->set_value(1);
cluster->mutable_health_checks(0)->mutable_healthy_threshold()->set_value(1);
cluster->mutable_health_checks(0)->mutable_tcp_health_check();
cluster->mutable_health_checks(0)->mutable_tcp_health_check()->mutable_send()->set_text(
"50696E67");
cluster->mutable_health_checks(0)->mutable_tcp_health_check()->add_receive()->set_text(
"506F6E67");
}
});
FakeRawConnectionPtr fake_upstream_health_connection;
on_server_init_function_ = [&](void) -> void {
ASSERT_TRUE(fake_upstreams_[0]->waitForRawConnection(fake_upstream_health_connection));
ASSERT_TRUE(fake_upstream_health_connection->waitForData(
FakeRawConnection::waitForInexactMatch("Ping")));
ASSERT_TRUE(fake_upstream_health_connection->write("Pong"));
};
initialize();
IntegrationTcpClientPtr tcp_client = makeTcpConnection(lookupPort("tcp_proxy"));
ASSERT_TRUE(tcp_client->write("hello"));
FakeRawConnectionPtr fake_upstream_connection;
ASSERT_TRUE(fake_upstreams_[0]->waitForRawConnection(fake_upstream_connection));
ASSERT_TRUE(fake_upstream_connection->waitForData(5));
ASSERT_TRUE(fake_upstream_connection->write("world"));
tcp_client->waitForData("world");
ASSERT_TRUE(tcp_client->write("hello"));
ASSERT_TRUE(fake_upstream_connection->waitForData(10));
ASSERT_TRUE(fake_upstream_health_connection->waitForData(8));
ASSERT_TRUE(fake_upstream_health_connection->close());
ASSERT_TRUE(fake_upstream_health_connection->waitForDisconnect());
// By waiting we know the previous health check attempt completed (with a failure since we closed
// the connection on it)
FakeRawConnectionPtr fake_upstream_health_connection_reconnect;
ASSERT_TRUE(fake_upstreams_[0]->waitForRawConnection(fake_upstream_health_connection_reconnect));
ASSERT_TRUE(fake_upstream_health_connection_reconnect->waitForData(
FakeRawConnection::waitForInexactMatch("Ping")));
ASSERT_TRUE(tcp_client->write("still"));
ASSERT_TRUE(fake_upstream_connection->waitForData(15));
ASSERT_TRUE(fake_upstream_connection->write("here"));
tcp_client->waitForData("here", false);
test_server_.reset();
ASSERT_TRUE(fake_upstream_connection->waitForHalfClose());
ASSERT_TRUE(fake_upstream_connection->close());
ASSERT_TRUE(fake_upstream_connection->waitForDisconnect());
ASSERT_TRUE(fake_upstream_health_connection_reconnect->waitForHalfClose());
ASSERT_TRUE(fake_upstream_health_connection_reconnect->close());
ASSERT_TRUE(fake_upstream_health_connection_reconnect->waitForDisconnect());
tcp_client->waitForHalfClose();
tcp_client->close();
}
TEST_P(TcpProxyIntegrationTest, TestCloseOnHealthFailure) {
concurrency_ = 2;
config_helper_.addConfigModifier([&](envoy::config::bootstrap::v3::Bootstrap& bootstrap) -> void {
auto* static_resources = bootstrap.mutable_static_resources();
for (int i = 0; i < static_resources->clusters_size(); ++i) {
auto* cluster = static_resources->mutable_clusters(i);
cluster->set_close_connections_on_host_health_failure(true);
cluster->mutable_common_lb_config()->mutable_healthy_panic_threshold()->set_value(0);
cluster->add_health_checks()->mutable_timeout()->set_seconds(20);
cluster->mutable_health_checks(0)->mutable_reuse_connection()->set_value(true);
cluster->mutable_health_checks(0)->mutable_interval()->set_seconds(1);
cluster->mutable_health_checks(0)->mutable_no_traffic_interval()->set_seconds(1);
cluster->mutable_health_checks(0)->mutable_unhealthy_threshold()->set_value(1);
cluster->mutable_health_checks(0)->mutable_healthy_threshold()->set_value(1);
cluster->mutable_health_checks(0)->mutable_tcp_health_check();
cluster->mutable_health_checks(0)->mutable_tcp_health_check()->mutable_send()->set_text(
"50696E67");
;
cluster->mutable_health_checks(0)->mutable_tcp_health_check()->add_receive()->set_text(
"506F6E67");
}
});
FakeRawConnectionPtr fake_upstream_health_connection;
on_server_init_function_ = [&](void) -> void {
ASSERT_TRUE(fake_upstreams_[0]->waitForRawConnection(fake_upstream_health_connection));
ASSERT_TRUE(fake_upstream_health_connection->waitForData(4));
ASSERT_TRUE(fake_upstream_health_connection->write("Pong"));
};
initialize();
IntegrationTcpClientPtr tcp_client = makeTcpConnection(lookupPort("tcp_proxy"));
ASSERT_TRUE(tcp_client->write("hello"));
FakeRawConnectionPtr fake_upstream_connection;
ASSERT_TRUE(fake_upstreams_[0]->waitForRawConnection(fake_upstream_connection));
ASSERT_TRUE(fake_upstream_connection->waitForData(5));
ASSERT_TRUE(fake_upstream_connection->write("world"));
tcp_client->waitForData("world");
ASSERT_TRUE(tcp_client->write("hello"));
ASSERT_TRUE(fake_upstream_connection->waitForData(10));
ASSERT_TRUE(fake_upstream_health_connection->waitForData(8));
ASSERT_TRUE(fake_upstream_health_connection->close());
ASSERT_TRUE(fake_upstream_health_connection->waitForDisconnect());
ASSERT_TRUE(fake_upstream_connection->waitForHalfClose());
tcp_client->waitForHalfClose();
ASSERT_TRUE(fake_upstream_connection->close());
tcp_client->close();
ASSERT_TRUE(fake_upstream_connection->waitForDisconnect());
}
class TcpProxyMetadataMatchIntegrationTest : public TcpProxyIntegrationTest {
public:
TcpProxyMetadataMatchIntegrationTest(uint32_t tcp_proxy_filter_index = 0)
: tcp_proxy_filter_index_(tcp_proxy_filter_index) {}
void initialize() override;
void expectEndpointToMatchRoute(
std::function<std::string(IntegrationTcpClient&)> initial_data_cb = nullptr);
void expectEndpointNotToMatchRoute(const std::string& write_data = "hello");
envoy::config::core::v3::Metadata lbMetadata(std::map<std::string, std::string> values);
envoy::extensions::filters::network::tcp_proxy::v3::TcpProxy tcp_proxy_;
envoy::config::core::v3::Metadata endpoint_metadata_;
const uint32_t tcp_proxy_filter_index_;
};
envoy::config::core::v3::Metadata
TcpProxyMetadataMatchIntegrationTest::lbMetadata(std::map<std::string, std::string> values) {
ProtobufWkt::Struct map;
auto* mutable_fields = map.mutable_fields();
ProtobufWkt::Value value;
std::map<std::string, std::string>::iterator it;
for (it = values.begin(); it != values.end(); it++) {
value.set_string_value(it->second);
mutable_fields->insert({it->first, value});
}
envoy::config::core::v3::Metadata metadata;
(*metadata.mutable_filter_metadata())[Envoy::Config::MetadataFilters::get().ENVOY_LB] = map;
return metadata;
}
void TcpProxyMetadataMatchIntegrationTest::initialize() {
config_helper_.addConfigModifier([&](envoy::config::bootstrap::v3::Bootstrap& bootstrap) {
auto* static_resources = bootstrap.mutable_static_resources();
ASSERT(static_resources->listeners_size() == 1);
static_resources->mutable_listeners(0)
->mutable_filter_chains(0)
->mutable_filters(tcp_proxy_filter_index_)
->mutable_typed_config()
->PackFrom(tcp_proxy_);
ASSERT(static_resources->clusters_size() == 1);
auto* cluster_0 = static_resources->mutable_clusters(0);
cluster_0->Clear();
cluster_0->set_name("cluster_0");
cluster_0->set_type(envoy::config::cluster::v3::Cluster::STATIC);
cluster_0->set_lb_policy(envoy::config::cluster::v3::Cluster::ROUND_ROBIN);
auto* lb_subset_config = cluster_0->mutable_lb_subset_config();
lb_subset_config->set_fallback_policy(
envoy::config::cluster::v3::Cluster::LbSubsetConfig::NO_FALLBACK);
auto* subset_selector = lb_subset_config->add_subset_selectors();
subset_selector->add_keys("role");
subset_selector->add_keys("version");
subset_selector->add_keys("stage");
auto* load_assignment = cluster_0->mutable_load_assignment();
load_assignment->set_cluster_name("cluster_0");
auto* locality_lb_endpoints = load_assignment->add_endpoints();
auto* lb_endpoint = locality_lb_endpoints->add_lb_endpoints();
lb_endpoint->mutable_endpoint()->mutable_address()->mutable_socket_address()->set_address(
Network::Test::getLoopbackAddressString(version_));
lb_endpoint->mutable_metadata()->MergeFrom(endpoint_metadata_);
});
TcpProxyIntegrationTest::initialize();
}
// Verifies successful connection.
void TcpProxyMetadataMatchIntegrationTest::expectEndpointToMatchRoute(
std::function<std::string(IntegrationTcpClient&)> initial_data_cb) {
IntegrationTcpClientPtr tcp_client = makeTcpConnection(lookupPort("tcp_proxy"));
std::string expected_upstream_data;
if (initial_data_cb) {
expected_upstream_data = initial_data_cb(*tcp_client);
} else {
expected_upstream_data = "hello";
ASSERT_TRUE(tcp_client->write(expected_upstream_data));
}
FakeRawConnectionPtr fake_upstream_connection;
ASSERT_TRUE(fake_upstreams_[0]->waitForRawConnection(fake_upstream_connection));
ASSERT_TRUE(fake_upstream_connection->waitForData(expected_upstream_data.length()));
ASSERT_TRUE(fake_upstream_connection->write("world"));
tcp_client->waitForData("world");
ASSERT_TRUE(tcp_client->write("hello", true));
ASSERT_TRUE(fake_upstream_connection->waitForData(5 + expected_upstream_data.length()));
ASSERT_TRUE(fake_upstream_connection->waitForHalfClose());
ASSERT_TRUE(fake_upstream_connection->write("", true));
ASSERT_TRUE(fake_upstream_connection->waitForDisconnect());
tcp_client->waitForDisconnect();
test_server_->waitForCounterGe("cluster.cluster_0.lb_subsets_selected", 1);
}
// Verifies connection failure.
void TcpProxyMetadataMatchIntegrationTest::expectEndpointNotToMatchRoute(
const std::string& write_data) {
IntegrationTcpClientPtr tcp_client = makeTcpConnection(lookupPort("tcp_proxy"));
ASSERT_TRUE(tcp_client->write(write_data, false, false));
// TODO(yskopets): 'tcp_client->waitForDisconnect();' gets stuck indefinitely on Linux builds,
// e.g. on 'envoy-linux (bazel compile_time_options)' and 'envoy-linux (bazel release)'
// tcp_client->waitForDisconnect();
test_server_->waitForCounterGe("cluster.cluster_0.upstream_cx_none_healthy", 1);
test_server_->waitForCounterEq("cluster.cluster_0.lb_subsets_selected", 0);
tcp_client->close();
}
INSTANTIATE_TEST_SUITE_P(TcpProxyIntegrationTestParams, TcpProxyMetadataMatchIntegrationTest,
testing::ValuesIn(getProtocolTestParams()), protocolTestParamsToString);
// Test subset load balancing for a regular cluster when endpoint selector is defined at the top
// level.
TEST_P(TcpProxyMetadataMatchIntegrationTest,
EndpointShouldMatchSingleClusterWithTopLevelMetadataMatch) {
tcp_proxy_.set_stat_prefix("tcp_stats");
tcp_proxy_.set_cluster("cluster_0");
tcp_proxy_.mutable_metadata_match()->MergeFrom(
lbMetadata({{"role", "primary"}, {"version", "v1"}, {"stage", "prod"}}));
endpoint_metadata_ = lbMetadata({{"role", "primary"}, {"version", "v1"}, {"stage", "prod"}});
initialize();
expectEndpointToMatchRoute();
}
// Test subset load balancing for a deprecated_v1 route when endpoint selector is defined at the top
// level.
TEST_P(TcpProxyMetadataMatchIntegrationTest,
DEPRECATED_FEATURE_TEST(EndpointShouldMatchRouteWithTopLevelMetadataMatch)) {
tcp_proxy_.set_stat_prefix("tcp_stats");
tcp_proxy_.set_cluster("fallback");
tcp_proxy_.mutable_hidden_envoy_deprecated_deprecated_v1()->add_routes()->set_cluster(
"cluster_0");
tcp_proxy_.mutable_metadata_match()->MergeFrom(
lbMetadata({{"role", "primary"}, {"version", "v1"}, {"stage", "prod"}}));
endpoint_metadata_ = lbMetadata({{"role", "primary"}, {"version", "v1"}, {"stage", "prod"}});
config_helper_.addRuntimeOverride("envoy.deprecated_features:envoy.extensions.filters.network."
"tcp_proxy.v3.TcpProxy.hidden_envoy_deprecated_deprecated_v1",
"true");
initialize();
expectEndpointToMatchRoute();
}
// Test subset load balancing for a weighted cluster when endpoint selector is defined on a weighted
// cluster.
TEST_P(TcpProxyMetadataMatchIntegrationTest, EndpointShouldMatchWeightedClusterWithMetadataMatch) {
tcp_proxy_.set_stat_prefix("tcp_stats");
auto* cluster_0 = tcp_proxy_.mutable_weighted_clusters()->add_clusters();
cluster_0->set_name("cluster_0");
cluster_0->set_weight(1);
cluster_0->mutable_metadata_match()->MergeFrom(
lbMetadata({{"role", "primary"}, {"version", "v1"}, {"stage", "prod"}}));
endpoint_metadata_ = lbMetadata({{"role", "primary"}, {"version", "v1"}, {"stage", "prod"}});
initialize();
expectEndpointToMatchRoute();
}
// Test subset load balancing for a weighted cluster when endpoint selector is defined both on a
// weighted cluster and at the top level.
TEST_P(TcpProxyMetadataMatchIntegrationTest,
EndpointShouldMatchWeightedClusterWithMetadataMatchAndTopLevelMetadataMatch) {
tcp_proxy_.set_stat_prefix("tcp_stats");
tcp_proxy_.mutable_metadata_match()->MergeFrom(lbMetadata({{"version", "v1"}, {"stage", "dev"}}));
auto* cluster_0 = tcp_proxy_.mutable_weighted_clusters()->add_clusters();
cluster_0->set_name("cluster_0");
cluster_0->set_weight(1);
cluster_0->mutable_metadata_match()->MergeFrom(lbMetadata(
{{"role", "primary"}, {"stage", "prod"}})); // should override `stage` value at top-level
endpoint_metadata_ = lbMetadata({{"role", "primary"}, {"version", "v1"}, {"stage", "prod"}});
initialize();
expectEndpointToMatchRoute();
}
// Test subset load balancing for a weighted cluster when endpoint selector is defined at the top
// level only.
TEST_P(TcpProxyMetadataMatchIntegrationTest,
EndpointShouldMatchWeightedClusterWithTopLevelMetadataMatch) {
tcp_proxy_.set_stat_prefix("tcp_stats");
tcp_proxy_.mutable_metadata_match()->MergeFrom(
lbMetadata({{"role", "primary"}, {"version", "v1"}, {"stage", "prod"}}));
auto* cluster_0 = tcp_proxy_.mutable_weighted_clusters()->add_clusters();
cluster_0->set_name("cluster_0");
cluster_0->set_weight(1);
endpoint_metadata_ = lbMetadata({{"role", "primary"}, {"version", "v1"}, {"stage", "prod"}});
initialize();
expectEndpointToMatchRoute();
}
// Test subset load balancing for a regular cluster when endpoint selector is defined at the top
// level.
TEST_P(TcpProxyMetadataMatchIntegrationTest,
EndpointShouldNotMatchSingleClusterWithTopLevelMetadataMatch) {
tcp_proxy_.set_stat_prefix("tcp_stats");
tcp_proxy_.set_cluster("cluster_0");
tcp_proxy_.mutable_metadata_match()->MergeFrom(
lbMetadata({{"role", "primary"}, {"version", "v1"}, {"stage", "prod"}}));
endpoint_metadata_ = lbMetadata({{"role", "replica"}, {"version", "v1"}, {"stage", "prod"}});
initialize();
expectEndpointNotToMatchRoute();
}
// Test subset load balancing for a deprecated_v1 route when endpoint selector is defined at the top
// level.
TEST_P(TcpProxyMetadataMatchIntegrationTest,
DEPRECATED_FEATURE_TEST(EndpointShouldNotMatchRouteWithTopLevelMetadataMatch)) {
tcp_proxy_.set_stat_prefix("tcp_stats");
tcp_proxy_.set_cluster("fallback");
tcp_proxy_.mutable_hidden_envoy_deprecated_deprecated_v1()->add_routes()->set_cluster(
"cluster_0");
tcp_proxy_.mutable_metadata_match()->MergeFrom(
lbMetadata({{"role", "primary"}, {"version", "v1"}, {"stage", "prod"}}));
endpoint_metadata_ = lbMetadata({{"role", "replica"}, {"version", "v1"}, {"stage", "prod"}});
config_helper_.addRuntimeOverride("envoy.deprecated_features:envoy.extensions.filters.network."
"tcp_proxy.v3.TcpProxy.hidden_envoy_deprecated_deprecated_v1",
"true");
initialize();
expectEndpointNotToMatchRoute();
}
// Test subset load balancing for a weighted cluster when endpoint selector is defined on a weighted
// cluster.
TEST_P(TcpProxyMetadataMatchIntegrationTest,
EndpointShouldNotMatchWeightedClusterWithMetadataMatch) {
tcp_proxy_.set_stat_prefix("tcp_stats");
auto* cluster_0 = tcp_proxy_.mutable_weighted_clusters()->add_clusters();
cluster_0->set_name("cluster_0");
cluster_0->set_weight(1);
cluster_0->mutable_metadata_match()->MergeFrom(
lbMetadata({{"role", "primary"}, {"version", "v1"}, {"stage", "prod"}}));
endpoint_metadata_ = lbMetadata({{"role", "replica"}, {"version", "v1"}, {"stage", "prod"}});
initialize();
expectEndpointNotToMatchRoute();
}
// Test subset load balancing for a weighted cluster when endpoint selector is defined both on a
// weighted cluster and at the top level.
TEST_P(TcpProxyMetadataMatchIntegrationTest,
EndpointShouldNotMatchWeightedClusterWithMetadataMatchAndTopLevelMetadataMatch) {
tcp_proxy_.set_stat_prefix("tcp_stats");
tcp_proxy_.mutable_metadata_match()->MergeFrom(lbMetadata({{"version", "v1"}, {"stage", "dev"}}));
auto* cluster_0 = tcp_proxy_.mutable_weighted_clusters()->add_clusters();
cluster_0->set_name("cluster_0");
cluster_0->set_weight(1);
cluster_0->mutable_metadata_match()->MergeFrom(lbMetadata(
{{"role", "primary"}, {"stage", "prod"}})); // should override `stage` value at top-level
endpoint_metadata_ = lbMetadata({{"role", "primary"}, {"version", "v1"}, {"stage", "dev"}});
initialize();
expectEndpointNotToMatchRoute();
}
// Test subset load balancing for a weighted cluster when endpoint selector is defined at the top
// level only.
TEST_P(TcpProxyMetadataMatchIntegrationTest,
EndpointShouldNotMatchWeightedClusterWithTopLevelMetadataMatch) {
tcp_proxy_.set_stat_prefix("tcp_stats");
tcp_proxy_.mutable_metadata_match()->MergeFrom(
lbMetadata({{"role", "primary"}, {"version", "v1"}, {"stage", "prod"}}));
auto* cluster_0 = tcp_proxy_.mutable_weighted_clusters()->add_clusters();
cluster_0->set_name("cluster_0");
cluster_0->set_weight(1);
endpoint_metadata_ = lbMetadata({{"role", "replica"}, {"version", "v1"}, {"stage", "prod"}});
initialize();
expectEndpointNotToMatchRoute();
}
class InjectDynamicMetadata : public Network::ReadFilter {
public:
explicit InjectDynamicMetadata(const std::string& key) : key_(key) {}
Network::FilterStatus onData(Buffer::Instance& data, bool) override {
if (!metadata_set_) {
// To allow testing a write that returns `StopIteration`, only proceed
// when more than 1 byte is received.
if (data.length() < 2) {
ASSERT(data.length() == 1);
// Echo data back to test can verify it was received.
Buffer::OwnedImpl copy(data);
read_callbacks_->connection().write(copy, false);
return Network::FilterStatus::StopIteration;
}
ProtobufWkt::Value val;
val.set_string_value(data.toString());
ProtobufWkt::Struct& map =
(*read_callbacks_->connection()
.streamInfo()
.dynamicMetadata()
.mutable_filter_metadata())[Envoy::Config::MetadataFilters::get().ENVOY_LB];
(*map.mutable_fields())[key_] = val;
// Put this back in the state that TcpProxy expects.
read_callbacks_->connection().readDisable(true);
metadata_set_ = true;
}
return Network::FilterStatus::Continue;
}
Network::FilterStatus onNewConnection() override {
// TcpProxy disables read; must re-enable so we can read headers.
read_callbacks_->connection().readDisable(false);
// Stop until we read the value and can set the metadata for TcpProxy.
return Network::FilterStatus::StopIteration;
}
void initializeReadFilterCallbacks(Network::ReadFilterCallbacks& callbacks) override {
read_callbacks_ = &callbacks;
}
const std::string key_;
Network::ReadFilterCallbacks* read_callbacks_{};
bool metadata_set_{false};
};
class InjectDynamicMetadataFactory : public Extensions::NetworkFilters::Common::FactoryBase<
test::integration::tcp_proxy::InjectDynamicMetadata> {
public:
InjectDynamicMetadataFactory() : FactoryBase("test.inject_dynamic_metadata") {}
private:
Network::FilterFactoryCb
createFilterFactoryFromProtoTyped(const test::integration::tcp_proxy::InjectDynamicMetadata& cfg,
Server::Configuration::FactoryContext&) override {
std::string key = cfg.key();
return [key = std::move(key)](Network::FilterManager& filter_manager) -> void {
filter_manager.addReadFilter(std::make_shared<InjectDynamicMetadata>(key));
};
}
};
class TcpProxyDynamicMetadataMatchIntegrationTest : public TcpProxyMetadataMatchIntegrationTest {
public:
TcpProxyDynamicMetadataMatchIntegrationTest() : TcpProxyMetadataMatchIntegrationTest(1) {
config_helper_.addNetworkFilter(R"EOF(
name: test.inject_dynamic_metadata
typed_config:
"@type": type.googleapis.com/test.integration.tcp_proxy.InjectDynamicMetadata
key: role
)EOF");
}
InjectDynamicMetadataFactory factory_;
Registry::InjectFactory<Server::Configuration::NamedNetworkFilterConfigFactory> register_factory_{
factory_};
};