Rumah >pembangunan bahagian belakang >Golang >Membina Pesawat Kawalan Jaring Servis dalam Go: A Deep Dive
Mari kita bina satah kawalan mesh perkhidmatan ringkas serupa dengan Istio tetapi tertumpu pada fungsi teras. Projek ini akan membantu anda memahami seni bina jaringan perkhidmatan, pengurusan trafik dan kebolehmerhatian.
// Core control plane structure type ControlPlane struct { registry *ServiceRegistry config *ConfigStore proxy *ProxyConfigurator metrics *MetricsCollector health *HealthChecker } // Service definition type Service struct { ID string Name string Version string Endpoints []Endpoint Config ServiceConfig Health HealthStatus } // Service registry implementation type ServiceRegistry struct { mu sync.RWMutex services map[string]*Service watches map[string][]chan ServiceEvent } func (sr *ServiceRegistry) RegisterService(ctx context.Context, svc *Service) error { sr.mu.Lock() defer sr.mu.Unlock() // Validate service if err := svc.Validate(); err != nil { return fmt.Errorf("invalid service: %w", err) } // Store service sr.services[svc.ID] = svc // Notify watchers event := ServiceEvent{ Type: ServiceAdded, Service: svc, } sr.notifyWatchers(svc.ID, event) return nil }
// Traffic management components type TrafficManager struct { rules map[string]*TrafficRule balancer *LoadBalancer } type TrafficRule struct { Service string Destination string Weight int Retries int Timeout time.Duration CircuitBreaker *CircuitBreaker } type CircuitBreaker struct { MaxFailures int TimeoutDuration time.Duration ResetTimeout time.Duration state atomic.Value // stores CircuitState } func (tm *TrafficManager) ApplyRule(ctx context.Context, rule *TrafficRule) error { // Validate rule if err := rule.Validate(); err != nil { return fmt.Errorf("invalid traffic rule: %w", err) } // Apply circuit breaker if configured if rule.CircuitBreaker != nil { if err := tm.configureCircuitBreaker(rule.Service, rule.CircuitBreaker); err != nil { return fmt.Errorf("circuit breaker configuration failed: %w", err) } } // Update load balancer tm.balancer.UpdateWeights(rule.Service, rule.Destination, rule.Weight) // Store rule tm.rules[rule.Service] = rule return nil }
// Observability components type ObservabilitySystem struct { metrics *MetricsCollector tracer *DistributedTracer logger *StructuredLogger } type MetricsCollector struct { store *TimeSeriesDB handlers map[string]MetricHandler } type Metric struct { Name string Value float64 Labels map[string]string Timestamp time.Time } func (mc *MetricsCollector) CollectMetrics(ctx context.Context) { ticker := time.NewTicker(10 * time.Second) defer ticker.Stop() for { select { case <-ticker.C: for name, handler := range mc.handlers { metrics, err := handler.Collect() if err != nil { log.Printf("Failed to collect metrics for %s: %v", name, err) continue } for _, metric := range metrics { if err := mc.store.Store(metric); err != nil { log.Printf("Failed to store metric: %v", err) } } } case <-ctx.Done(): return } } }
// Configuration management type ConfigStore struct { mu sync.RWMutex configs map[string]*ServiceConfig watchers map[string][]chan ConfigEvent } type ServiceConfig struct { Service string TrafficRules []TrafficRule CircuitBreaker *CircuitBreaker Timeouts TimeoutConfig Retry RetryConfig } func (cs *ConfigStore) UpdateConfig(ctx context.Context, config *ServiceConfig) error { cs.mu.Lock() defer cs.mu.Unlock() // Validate configuration if err := config.Validate(); err != nil { return fmt.Errorf("invalid configuration: %w", err) } // Store configuration cs.configs[config.Service] = config // Notify watchers event := ConfigEvent{ Type: ConfigUpdated, Config: config, } cs.notifyWatchers(config.Service, event) return nil }
// Proxy configuration type ProxyConfigurator struct { templates map[string]*ProxyTemplate proxies map[string]*Proxy } type Proxy struct { ID string Service string Config *ProxyConfig Status ProxyStatus } type ProxyConfig struct { Routes []RouteConfig Listeners []ListenerConfig Clusters []ClusterConfig } func (pc *ProxyConfigurator) ConfigureProxy(ctx context.Context, proxy *Proxy) error { // Get template for service template, ok := pc.templates[proxy.Service] if !ok { return fmt.Errorf("no template found for service %s", proxy.Service) } // Generate configuration config, err := template.Generate(proxy) if err != nil { return fmt.Errorf("failed to generate proxy config: %w", err) } // Apply configuration if err := proxy.ApplyConfig(config); err != nil { return fmt.Errorf("failed to apply proxy config: %w", err) } // Store proxy pc.proxies[proxy.ID] = proxy return nil }
// Health checking system type HealthChecker struct { checks map[string]HealthCheck status map[string]HealthStatus } type HealthCheck struct { Service string Interval time.Duration Timeout time.Duration Checker func(ctx context.Context) error } func (hc *HealthChecker) StartHealthChecks(ctx context.Context) { for _, check := range hc.checks { go func(check HealthCheck) { ticker := time.NewTicker(check.Interval) defer ticker.Stop() for { select { case <-ticker.C: checkCtx, cancel := context.WithTimeout(ctx, check.Timeout) err := check.Checker(checkCtx) cancel() status := HealthStatus{ Healthy: err == nil, LastCheck: time.Now(), Error: err, } hc.updateStatus(check.Service, status) case <-ctx.Done(): return } } }(check) } }
Kemas Kini Konfigurasi Dinamik
Imbangan Beban Lanjutan
Kebolehlihatan Dipertingkat
Ciri Keselamatan
Pemeriksaan Kesihatan Lanjutan
Ketersediaan Tinggi
Skalabiliti
Prestasi
Ujian Unit
Ujian Penyepaduan
Ujian Prestasi
Membina satah kawalan mesh perkhidmatan membantu memahami sistem teragih yang kompleks dan seni bina asli awan moden. Projek ini merangkumi pelbagai aspek reka bentuk sistem, daripada pengurusan trafik kepada kebolehmerhatian.
Kongsi pengalaman pelaksanaan dan soalan anda dalam ulasan di bawah!
Tag: #golang #servicemesh #microservices #cloud-native #distributed-systems
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