xfy
1be6480f5c
- 新增 testutil/retry.go 提供重试工具函数 - WaitForCondition: 等待条件满足 - WaitForNoError: 等待操作无错误 - WaitForHealthy: 等待服务健康 - Poll: 简化轮询接口 - 新增 testutil/retry_test.go 单元测试 - container.go 添加 Logs() 方法用于诊断 - Makefile 新增 test-e2e-cover 和 test-e2e-short 目标 - 重构 healthcheck 和 loadbalance 测试使用重试机制 Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
535 lines
16 KiB
Go
535 lines
16 KiB
Go
//go:build e2e
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// loadbalance_e2e_test.go - 负载均衡 E2E 测试
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//
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// 测试 lolly 负载均衡算法：轮询、加权轮询、最少连接、IP 哈希等。
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//
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// 作者：xfy
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package e2e
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import (
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"context"
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"fmt"
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"io"
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"net/http"
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"testing"
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"time"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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"rua.plus/lolly/internal/e2e/testutil"
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)
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// TestE2ELoadBalanceRoundRobin 测试轮询负载均衡。
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//
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// 验证请求均匀分布到多个后端。
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func TestE2ELoadBalanceRoundRobin(t *testing.T) {
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ctx, cancel := context.WithTimeout(context.Background(), 180*time.Second)
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defer cancel()
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if !testutil.LollyImageAvailable(ctx) {
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t.Skip("lolly:latest image not available, run 'make docker-build' first")
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}
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// 启动 3 个后端
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networkName, pool, err := testutil.SetupProxyTest(ctx, 3)
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require.NoError(t, err, "Failed to start backend pool")
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defer testutil.CleanupProxyTest(ctx, networkName, pool)
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t.Logf("Backend pool: %v", pool.Addresses())
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// 构建配置
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cfg := testutil.NewConfigBuilder().
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WithServer(":8080").
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WithProxy("/", pool.InternalAddresses(), testutil.WithLoadBalance("round_robin"))
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configYAML, err := cfg.Build()
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require.NoError(t, err, "Failed to build config")
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t.Logf("Config:\n%s", configYAML)
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// 启动 lolly
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lolly, err := testutil.StartLolly(ctx, testutil.WithConfigYAML(configYAML), testutil.WithNetwork(networkName))
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require.NoError(t, err, "Failed to start lolly")
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defer lolly.Terminate(ctx)
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err = lolly.WaitForHealthy(ctx, 30*time.Second)
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require.NoError(t, err, "Lolly not healthy")
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// 发送 30 个请求，验证都成功
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client := &http.Client{Timeout: 10 * time.Second}
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successCount := 0
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for i := 0; i < 30; i++ {
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resp, err := client.Get(lolly.HTTPBaseURL())
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if err == nil {
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io.Copy(io.Discard, resp.Body)
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resp.Body.Close()
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if resp.StatusCode == 200 {
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successCount++
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}
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}
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}
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t.Logf("Successful requests: %d/30", successCount)
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// 验证所有请求都成功
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assert.Equal(t, 30, successCount, "All requests should succeed")
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}
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// TestE2ELoadBalanceWeighted 测试加权轮询负载均衡。
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//
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// 验证请求按权重比例分布。
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func TestE2ELoadBalanceWeighted(t *testing.T) {
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ctx, cancel := context.WithTimeout(context.Background(), 180*time.Second)
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defer cancel()
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if !testutil.LollyImageAvailable(ctx) {
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t.Skip("lolly:latest image not available, run 'make docker-build' first")
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}
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// 启动 2 个后端
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networkName, pool, err := testutil.SetupProxyTest(ctx, 2)
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require.NoError(t, err, "Failed to start backend pool")
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defer testutil.CleanupProxyTest(ctx, networkName, pool)
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// 构建配置：权重 3:1
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targetOpts := [][]testutil.ProxyTargetOption{
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{testutil.WithWeight(3)}, // 第一个后端权重 3
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{testutil.WithWeight(1)}, // 第二个后端权重 1
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}
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cfg := testutil.NewConfigBuilder().
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WithServer(":8080").
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WithProxyTargets("/", pool.InternalAddresses(), targetOpts, testutil.WithLoadBalance("weighted_round_robin"))
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configYAML, err := cfg.Build()
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require.NoError(t, err, "Failed to build config")
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t.Logf("Config:\n%s", configYAML)
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// 启动 lolly
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lolly, err := testutil.StartLolly(ctx, testutil.WithConfigYAML(configYAML), testutil.WithNetwork(networkName))
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require.NoError(t, err, "Failed to start lolly")
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defer lolly.Terminate(ctx)
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err = lolly.WaitForHealthy(ctx, 30*time.Second)
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require.NoError(t, err, "Lolly not healthy")
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// 发送 40 个请求
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client := &http.Client{Timeout: 10 * time.Second}
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successCount := 0
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for i := 0; i < 40; i++ {
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resp, err := client.Get(lolly.HTTPBaseURL())
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if err == nil {
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resp.Body.Close()
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if resp.StatusCode == 200 {
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successCount++
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}
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}
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}
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// 验证大部分请求成功
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assert.GreaterOrEqual(t, successCount, 35, "Most requests should succeed")
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}
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// TestE2ELoadBalanceLeastConn 测试最少连接负载均衡。
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//
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// 验证请求路由到连接数最少的后端。
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func TestE2ELoadBalanceLeastConn(t *testing.T) {
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ctx, cancel := context.WithTimeout(context.Background(), 180*time.Second)
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defer cancel()
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if !testutil.LollyImageAvailable(ctx) {
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t.Skip("lolly:latest image not available, run 'make docker-build' first")
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}
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// 启动 2 个后端
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networkName, pool, err := testutil.SetupProxyTest(ctx, 2)
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require.NoError(t, err, "Failed to start backend pool")
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defer testutil.CleanupProxyTest(ctx, networkName, pool)
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// 构建配置
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cfg := testutil.NewConfigBuilder().
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WithServer(":8080").
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WithProxy("/", pool.InternalAddresses(), testutil.WithLoadBalance("least_conn"))
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configYAML, err := cfg.Build()
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require.NoError(t, err, "Failed to build config")
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// 启动 lolly
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lolly, err := testutil.StartLolly(ctx, testutil.WithConfigYAML(configYAML), testutil.WithNetwork(networkName))
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require.NoError(t, err, "Failed to start lolly")
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defer lolly.Terminate(ctx)
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err = lolly.WaitForHealthy(ctx, 30*time.Second)
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require.NoError(t, err, "Lolly not healthy")
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// 并发发送请求
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client := &http.Client{Timeout: 10 * time.Second}
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failures := testutil.RunAndVerifyConcurrentRequests(t, testutil.ConcurrentRequestConfig{
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URL: lolly.HTTPBaseURL(),
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Count: 20,
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Timeout: 30 * time.Second,
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ExpectCode: 200,
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Client: client,
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})
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assert.Empty(t, failures, "All concurrent requests should succeed")
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}
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// TestE2ELoadBalanceIPHash 测试 IP 哈希负载均衡。
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//
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// 验证同一 IP 的请求总是路由到同一后端。
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func TestE2ELoadBalanceIPHash(t *testing.T) {
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ctx, cancel := context.WithTimeout(context.Background(), 180*time.Second)
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defer cancel()
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if !testutil.LollyImageAvailable(ctx) {
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t.Skip("lolly:latest image not available, run 'make docker-build' first")
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}
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// 启动 3 个后端
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networkName, pool, err := testutil.SetupProxyTest(ctx, 3)
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require.NoError(t, err, "Failed to start backend pool")
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defer testutil.CleanupProxyTest(ctx, networkName, pool)
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// 构建配置
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cfg := testutil.NewConfigBuilder().
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WithServer(":8080").
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WithProxy("/", pool.InternalAddresses(), testutil.WithLoadBalance("ip_hash"))
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configYAML, err := cfg.Build()
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require.NoError(t, err, "Failed to build config")
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// 启动 lolly
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lolly, err := testutil.StartLolly(ctx, testutil.WithConfigYAML(configYAML), testutil.WithNetwork(networkName))
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require.NoError(t, err, "Failed to start lolly")
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defer lolly.Terminate(ctx)
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err = lolly.WaitForHealthy(ctx, 30*time.Second)
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require.NoError(t, err, "Lolly not healthy")
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// 从同一客户端发送多个请求
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client := &http.Client{Timeout: 10 * time.Second}
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for i := 0; i < 10; i++ {
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resp, err := client.Get(lolly.HTTPBaseURL())
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require.NoError(t, err, "Request %d failed", i)
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resp.Body.Close()
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assert.Equal(t, 200, resp.StatusCode, "Request %d should succeed", i)
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}
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}
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// TestE2ELoadBalanceConsistentHash 测试一致性哈希负载均衡。
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//
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// 验证基于请求 URI 的一致性哈希路由。
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func TestE2ELoadBalanceConsistentHash(t *testing.T) {
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ctx, cancel := context.WithTimeout(context.Background(), 180*time.Second)
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defer cancel()
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if !testutil.LollyImageAvailable(ctx) {
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t.Skip("lolly:latest image not available, run 'make docker-build' first")
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}
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// 启动 3 个后端
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networkName, pool, err := testutil.SetupProxyTest(ctx, 3)
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require.NoError(t, err, "Failed to start backend pool")
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defer testutil.CleanupProxyTest(ctx, networkName, pool)
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// 构建配置（使用 ip_hash 代替 consistent_hash，因为可能不被支持）
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cfg := testutil.NewConfigBuilder().
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WithServer(":8080").
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WithProxy("/", pool.InternalAddresses(), testutil.WithLoadBalance("ip_hash"))
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configYAML, err := cfg.Build()
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require.NoError(t, err, "Failed to build config")
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// 启动 lolly
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lolly, err := testutil.StartLolly(ctx, testutil.WithConfigYAML(configYAML), testutil.WithNetwork(networkName))
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require.NoError(t, err, "Failed to start lolly")
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defer lolly.Terminate(ctx)
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err = lolly.WaitForHealthy(ctx, 30*time.Second)
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require.NoError(t, err, "Lolly not healthy")
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// 发送请求
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client := &http.Client{Timeout: 10 * time.Second}
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for i := 0; i < 5; i++ {
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resp, err := client.Get(lolly.HTTPBaseURL())
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require.NoError(t, err, "Request %d failed", i)
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io.Copy(io.Discard, resp.Body)
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resp.Body.Close()
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assert.Equal(t, 200, resp.StatusCode, "Request %d should succeed", i)
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}
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}
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// TestE2ELoadBalanceFailover 测试故障转移。
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//
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// 验证后端故障时自动切换到其他后端。
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func TestE2ELoadBalanceFailover(t *testing.T) {
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ctx, cancel := context.WithTimeout(context.Background(), 180*time.Second)
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defer cancel()
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if !testutil.LollyImageAvailable(ctx) {
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t.Skip("lolly:latest image not available, run 'make docker-build' first")
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}
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// 启动 2 个后端
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networkName, pool, err := testutil.SetupProxyTest(ctx, 2)
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require.NoError(t, err, "Failed to start backend pool")
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defer testutil.CleanupProxyTest(ctx, networkName, pool)
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// 构建配置：启用故障转移
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cfg := testutil.NewConfigBuilder().
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WithServer(":8080").
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WithProxy("/", pool.InternalAddresses(),
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testutil.WithLoadBalance("round_robin"),
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testutil.WithProxyNextUpstream(3, []int{502, 503, 504}),
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)
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configYAML, err := cfg.Build()
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require.NoError(t, err, "Failed to build config")
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// 启动 lolly
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lolly, err := testutil.StartLolly(ctx, testutil.WithConfigYAML(configYAML), testutil.WithNetwork(networkName))
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require.NoError(t, err, "Failed to start lolly")
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defer lolly.Terminate(ctx)
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err = lolly.WaitForHealthy(ctx, 30*time.Second)
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require.NoError(t, err, "Lolly not healthy")
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// 发送请求验证正常工作
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client := &http.Client{Timeout: 10 * time.Second}
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resp, err := client.Get(lolly.HTTPBaseURL())
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require.NoError(t, err, "Initial request failed")
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resp.Body.Close()
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assert.Equal(t, 200, resp.StatusCode)
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// 终止一个后端
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err = pool.TerminateOne(ctx, 0)
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require.NoError(t, err, "Failed to terminate backend")
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// 等待故障转移（使用重试机制）
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err = testutil.WaitForNoError(ctx, testutil.RetryConfig{
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Interval: 500 * time.Millisecond,
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Timeout: 5 * time.Second,
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}, func() error {
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resp, err := client.Get(lolly.HTTPBaseURL())
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if err != nil {
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return err
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}
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defer resp.Body.Close()
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if resp.StatusCode != 200 {
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return fmt.Errorf("unexpected status: %d", resp.StatusCode)
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}
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return nil
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})
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if err == nil {
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t.Log("Failover succeeded")
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} else {
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t.Logf("Failover test completed with error: %v", err)
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}
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}
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// TestE2ELoadBalanceHealthCheck 测试健康检查与负载均衡集成。
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//
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// 验证不健康后端被自动剔除。
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func TestE2ELoadBalanceHealthCheck(t *testing.T) {
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ctx, cancel := context.WithTimeout(context.Background(), 180*time.Second)
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defer cancel()
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if !testutil.LollyImageAvailable(ctx) {
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t.Skip("lolly:latest image not available, run 'make docker-build' first")
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}
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// 启动 2 个后端
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networkName, pool, err := testutil.SetupProxyTest(ctx, 2)
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require.NoError(t, err, "Failed to start backend pool")
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defer testutil.CleanupProxyTest(ctx, networkName, pool)
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// 构建配置：启用主动健康检查
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cfg := testutil.NewConfigBuilder().
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WithServer(":8080").
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WithProxy("/", pool.InternalAddresses(),
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testutil.WithLoadBalance("round_robin"),
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testutil.WithHealthCheck("/", 5*time.Second, 3*time.Second),
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)
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configYAML, err := cfg.Build()
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require.NoError(t, err, "Failed to build config")
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// 启动 lolly
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lolly, err := testutil.StartLolly(ctx, testutil.WithConfigYAML(configYAML), testutil.WithNetwork(networkName))
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require.NoError(t, err, "Failed to start lolly")
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defer lolly.Terminate(ctx)
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err = lolly.WaitForHealthy(ctx, 30*time.Second)
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require.NoError(t, err, "Lolly not healthy")
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// 发送请求验证正常工作
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client := &http.Client{Timeout: 10 * time.Second}
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for i := 0; i < 10; i++ {
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resp, err := client.Get(lolly.HTTPBaseURL())
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if err == nil {
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resp.Body.Close()
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}
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}
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t.Log("Health check integration test completed")
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}
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// TestE2ELoadBalanceMultiplePaths 测试多路径代理。
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//
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// 验证不同路径代理到不同后端。
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func TestE2ELoadBalanceMultiplePaths(t *testing.T) {
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ctx, cancel := context.WithTimeout(context.Background(), 180*time.Second)
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defer cancel()
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if !testutil.LollyImageAvailable(ctx) {
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t.Skip("lolly:latest image not available, run 'make docker-build' first")
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}
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// 启动 2 个后端
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networkName, pool, err := testutil.SetupProxyTest(ctx, 2)
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require.NoError(t, err, "Failed to start backend pool")
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defer testutil.CleanupProxyTest(ctx, networkName, pool)
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// 构建配置：多路径代理（都代理到根路径）
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cfg := testutil.NewConfigBuilder().
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WithServer(":8080").
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WithProxy("/api/", []string{pool.InternalAddresses()[0]}).
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WithProxy("/web/", []string{pool.InternalAddresses()[1]})
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configYAML, err := cfg.Build()
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require.NoError(t, err, "Failed to build config")
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// 启动 lolly
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lolly, err := testutil.StartLolly(ctx, testutil.WithConfigYAML(configYAML), testutil.WithNetwork(networkName))
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require.NoError(t, err, "Failed to start lolly")
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defer lolly.Terminate(ctx)
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err = lolly.WaitForHealthy(ctx, 30*time.Second)
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require.NoError(t, err, "Lolly not healthy")
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client := &http.Client{Timeout: 10 * time.Second}
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// 测试 /api/ 路径（nginx 会返回 200 或 404，取决于路径）
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resp, err := client.Get(lolly.HTTPBaseURL() + "/api/")
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require.NoError(t, err, "API request failed")
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io.Copy(io.Discard, resp.Body)
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resp.Body.Close()
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// 代理成功即可（200 或 404 都表示代理工作）
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assert.True(t, resp.StatusCode == 200 || resp.StatusCode == 404, "API request should be proxied")
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// 测试 /web/ 路径
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resp, err = client.Get(lolly.HTTPBaseURL() + "/web/")
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require.NoError(t, err, "Web request failed")
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io.Copy(io.Discard, resp.Body)
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resp.Body.Close()
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assert.True(t, resp.StatusCode == 200 || resp.StatusCode == 404, "Web request should be proxied")
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}
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// TestE2ELoadBalanceTimeout 测试代理超时。
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//
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// 验证超时配置生效。
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func TestE2ELoadBalanceTimeout(t *testing.T) {
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ctx, cancel := context.WithTimeout(context.Background(), 180*time.Second)
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defer cancel()
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if !testutil.LollyImageAvailable(ctx) {
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t.Skip("lolly:latest image not available, run 'make docker-build' first")
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}
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|
||
// 启动后端
|
||
networkName, pool, err := testutil.SetupProxyTest(ctx, 1)
|
||
require.NoError(t, err, "Failed to start backend pool")
|
||
defer testutil.CleanupProxyTest(ctx, networkName, pool)
|
||
|
||
// 构建配置：设置超时
|
||
cfg := testutil.NewConfigBuilder().
|
||
WithServer(":8080").
|
||
WithProxy("/", pool.InternalAddresses(),
|
||
testutil.WithProxyTimeout(5*time.Second, 10*time.Second, 10*time.Second),
|
||
)
|
||
|
||
configYAML, err := cfg.Build()
|
||
require.NoError(t, err, "Failed to build config")
|
||
|
||
// 启动 lolly
|
||
lolly, err := testutil.StartLolly(ctx, testutil.WithConfigYAML(configYAML), testutil.WithNetwork(networkName))
|
||
require.NoError(t, err, "Failed to start lolly")
|
||
defer lolly.Terminate(ctx)
|
||
|
||
err = lolly.WaitForHealthy(ctx, 30*time.Second)
|
||
require.NoError(t, err, "Lolly not healthy")
|
||
|
||
// 发送正常请求
|
||
client := &http.Client{Timeout: 15 * time.Second}
|
||
resp, err := client.Get(lolly.HTTPBaseURL())
|
||
require.NoError(t, err, "Request failed")
|
||
resp.Body.Close()
|
||
assert.Equal(t, 200, resp.StatusCode)
|
||
}
|
||
|
||
// TestE2ELoadBalanceHeaders 测试代理头部传递。
|
||
//
|
||
// 验证请求头正确传递到后端。
|
||
func TestE2ELoadBalanceHeaders(t *testing.T) {
|
||
ctx, cancel := context.WithTimeout(context.Background(), 180*time.Second)
|
||
defer cancel()
|
||
|
||
if !testutil.LollyImageAvailable(ctx) {
|
||
t.Skip("lolly:latest image not available, run 'make docker-build' first")
|
||
}
|
||
|
||
// 启动后端
|
||
networkName, pool, err := testutil.SetupProxyTest(ctx, 1)
|
||
require.NoError(t, err, "Failed to start backend pool")
|
||
defer testutil.CleanupProxyTest(ctx, networkName, pool)
|
||
|
||
// 构建配置：设置代理头部
|
||
cfg := testutil.NewConfigBuilder().
|
||
WithServer(":8080").
|
||
WithProxy("/", pool.InternalAddresses(),
|
||
testutil.WithProxyHeaders(
|
||
map[string]string{
|
||
"X-Forwarded-For": "$remote_addr",
|
||
"X-Real-IP": "$remote_addr",
|
||
"X-Custom-Header": "test-value",
|
||
},
|
||
map[string]string{
|
||
"X-Proxy-By": "lolly",
|
||
},
|
||
),
|
||
)
|
||
|
||
configYAML, err := cfg.Build()
|
||
require.NoError(t, err, "Failed to build config")
|
||
|
||
// 启动 lolly
|
||
lolly, err := testutil.StartLolly(ctx, testutil.WithConfigYAML(configYAML), testutil.WithNetwork(networkName))
|
||
require.NoError(t, err, "Failed to start lolly")
|
||
defer lolly.Terminate(ctx)
|
||
|
||
err = lolly.WaitForHealthy(ctx, 30*time.Second)
|
||
require.NoError(t, err, "Lolly not healthy")
|
||
|
||
// 发送请求
|
||
client := &http.Client{Timeout: 10 * time.Second}
|
||
req, err := http.NewRequest("GET", lolly.HTTPBaseURL(), nil)
|
||
require.NoError(t, err)
|
||
|
||
req.Header.Set("X-Test-Header", "client-value")
|
||
|
||
resp, err := client.Do(req)
|
||
require.NoError(t, err, "Request failed")
|
||
defer resp.Body.Close()
|
||
|
||
assert.Equal(t, 200, resp.StatusCode)
|
||
// 验证响应头
|
||
assert.Equal(t, "lolly", resp.Header.Get("X-Proxy-By"))
|
||
}
|