🐹 Deployment Directives - Go

Go Documentation

Deployment Directives - Go

🎯 What Are Deployment Directives?

Deployment directives (#deployment) in TuskLang allow you to define deployment strategies, containerization, infrastructure configuration, and environment management directly in your configuration files.

// Deployment directives define your entire deployment system
type DeploymentConfig struct {
    Strategies  map[string]string tsk:"#deployment_strategies"
    Containers  map[string]string tsk:"#deployment_containers"
    Infrastructure map[string]string tsk:"#deployment_infrastructure"
    Environments map[string]string tsk:"#deployment_environments"
}

🚀 Why Deployment Directives Matter

Traditional Deployment Development

// Old way - scattered across multiple files
func main() {
    // Deployment configuration scattered
    dockerfile := FROM golang:1.21-alpine
WORKDIR /app
COPY . .
RUN go build -o main .
EXPOSE 8080
CMD ["./main"]
    
    // Manual deployment steps
    // docker build -t myapp .
    // docker run -p 8080:8080 myapp
    // kubectl apply -f k8s/
}

TuskLang Deployment Directives - Declarative & Dynamic

deployment.tsk - Complete deployment definition deployment_strategies: #deployment(""" blue_green -> Blue-green deployment strategy: "blue_green" health_check: "/health" rollback_threshold: 0.05 switch_timeout: 30s rolling -> Rolling deployment strategy: "rolling" max_unavailable: 1 max_surge: 2 health_check: "/ready" canary -> Canary deployment strategy: "canary" initial_traffic: 0.1 increment: 0.1 interval: 5m max_traffic: 1.0 """) deployment_containers: #deployment(""" app_container -> Application container image: "myapp:latest" port: 8080 resources: cpu: "500m" memory: "512Mi" health_check: "/health" readiness_check: "/ready" sidecar_container -> Sidecar container image: "nginx:alpine" port: 80 resources: cpu: "100m" memory: "128Mi" """)

deployment_infrastructure: #deployment(""" kubernetes -> Kubernetes deployment namespace: "production" replicas: 3 autoscaling: min: 2 max: 10 target_cpu: 70 ingress: host: "api.example.com" tls: true """)

📋 Deployment Directive Types

1. Strategy Directives (`#deployment_strategies`)

- Deployment strategy definitions - Blue-green, rolling, canary deployments - Health check configuration - Rollback strategies

2. Container Directives (`#deployment_containers`)

- Container image configuration - Resource requirements - Health and readiness checks - Sidecar containers

3. Infrastructure Directives (`#deployment_infrastructure`)

- Kubernetes configuration - Cloud provider settings - Load balancer configuration - Auto-scaling rules

4. Environment Directives (`#deployment_environments`)

- Environment-specific settings - Configuration management - Secret management - Feature flags

🔧 Basic Deployment Directive Syntax

Simple Deployment Strategy

Basic deployment strategy
rolling_deploy: #deployment("rolling -> max_unavailable:1,max_surge:2")

Deployment Strategy with Configuration

Deployment strategy with detailed configuration
blue_green_deploy: #deployment("""
    strategy: "blue_green"
    health_check: "/health"
    rollback_threshold: 0.05
    switch_timeout: 30s
    pre_deployment_hook: "backup_database"
    post_deployment_hook: "run_migrations"
""")

Multiple Deployment Strategies

Multiple deployment strategies
deployment_strategies: #deployment("""
    production -> blue_green -> health_check:/health,rollback:0.05
    staging -> rolling -> max_unavailable:1,max_surge:2
    development -> canary -> initial:0.1,increment:0.1
""")

🎯 Go Integration Patterns

Struct Tags for Deployment Directives

type DeploymentConfig struct {
    // Deployment strategies
    Strategies string tsk:"#deployment_strategies"
    
    // Container configuration
    Containers string tsk:"#deployment_containers"
    
    // Infrastructure configuration
    Infrastructure string tsk:"#deployment_infrastructure"
    
    // Environment configuration
    Environments string tsk:"#deployment_environments"
}

Deployment Application Setup

package main
import (
    "github.com/tusklang/go-sdk"
    "github.com/gorilla/mux"
    "net/http"
)func main() {
    // Load deployment configuration
    config := tusk.LoadConfig("deployment.tsk")
    
    var deploymentConfig DeploymentConfig
    config.Unmarshal(&deploymentConfig)
    
    // Create deployment system from directives
    deployment := tusk.NewDeploymentSystem(deploymentConfig)
    
    // Create router
    router := mux.NewRouter()
    
    // Apply deployment middleware
    tusk.ApplyDeploymentMiddleware(router, deployment)
    
    // Start server
    http.ListenAndServe(":8080", router)
}

Deployment Handler Implementation

package deployment
import (
    "context"
    "fmt"
    "net/http"
    "time"
    "k8s.io/client-go/kubernetes"
    "k8s.io/client-go/rest"
)
// Deployment manager
type DeploymentManager struct {
    clientset *kubernetes.Clientset
    config    DeploymentConfig
}
func NewDeploymentManager(config DeploymentConfig) (*DeploymentManager, error) {
    // Load Kubernetes config
    kubeConfig, err := rest.InClusterConfig()
    if err != nil {
        return nil, fmt.Errorf("failed to load kubeconfig: %v", err)
    }
    
    // Create clientset
    clientset, err := kubernetes.NewForConfig(kubeConfig)
    if err != nil {
        return nil, fmt.Errorf("failed to create clientset: %v", err)
    }
    
    return &DeploymentManager{
        clientset: clientset,
        config:    config,
    }, nil
}
// Blue-green deployment
func (dm *DeploymentManager) BlueGreenDeploy(ctx context.Context, appName, newImage string) error {
    // Get current deployment
    currentDeployment, err := dm.getCurrentDeployment(ctx, appName)
    if err != nil {
        return fmt.Errorf("failed to get current deployment: %v", err)
    }
    
    // Create new deployment (green)
    greenDeployment := dm.createGreenDeployment(currentDeployment, newImage)
    if err := dm.createDeployment(ctx, greenDeployment); err != nil {
        return fmt.Errorf("failed to create green deployment: %v", err)
    }
    
    // Wait for green deployment to be ready
    if err := dm.waitForDeploymentReady(ctx, greenDeployment.Name); err != nil {
        return fmt.Errorf("green deployment not ready: %v", err)
    }
    
    // Run health checks
    if err := dm.runHealthChecks(ctx, greenDeployment); err != nil {
        return fmt.Errorf("health checks failed: %v", err)
    }
    
    // Switch traffic to green deployment
    if err := dm.switchTraffic(ctx, appName, greenDeployment.Name); err != nil {
        return fmt.Errorf("failed to switch traffic: %v", err)
    }
    
    // Scale down blue deployment
    if err := dm.scaleDownDeployment(ctx, currentDeployment.Name); err != nil {
        return fmt.Errorf("failed to scale down blue deployment: %v", err)
    }
    
    return nil
}
// Rolling deployment
func (dm *DeploymentManager) RollingDeploy(ctx context.Context, appName, newImage string) error {
    // Update deployment image
    deployment, err := dm.getDeployment(ctx, appName)
    if err != nil {
        return fmt.Errorf("failed to get deployment: %v", err)
    }
    
    // Update container image
    deployment.Spec.Template.Spec.Containers[0].Image = newImage
    
    // Apply rolling update
    if err := dm.updateDeployment(ctx, deployment); err != nil {
        return fmt.Errorf("failed to update deployment: %v", err)
    }
    
    // Wait for rollout to complete
    if err := dm.waitForRollout(ctx, appName); err != nil {
        return fmt.Errorf("rollout failed: %v", err)
    }
    
    return nil
}
// Canary deployment
func (dm *DeploymentManager) CanaryDeploy(ctx context.Context, appName, newImage string) error {
    // Create canary deployment
    canaryDeployment := dm.createCanaryDeployment(appName, newImage)
    if err := dm.createDeployment(ctx, canaryDeployment); err != nil {
        return fmt.Errorf("failed to create canary deployment: %v", err)
    }
    
    // Gradually increase traffic
    trafficPercentages := []float64{0.1, 0.25, 0.5, 0.75, 1.0}
    
    for _, percentage := range trafficPercentages {
        // Update traffic split
        if err := dm.updateTrafficSplit(ctx, appName, canaryDeployment.Name, percentage); err != nil {
            return fmt.Errorf("failed to update traffic split: %v", err)
        }
        
        // Wait for interval
        time.Sleep(5 * time.Minute)
        
        // Check metrics
        if err := dm.checkCanaryMetrics(ctx, canaryDeployment.Name); err != nil {
            return fmt.Errorf("canary metrics check failed: %v", err)
        }
    }
    
    // Promote canary to stable
    if err := dm.promoteCanary(ctx, appName, canaryDeployment.Name); err != nil {
        return fmt.Errorf("failed to promote canary: %v", err)
    }
    
    return nil
}
// Health check handler
func (dm DeploymentManager) HealthCheck(w http.ResponseWriter, r http.Request) {
    // Perform health checks
    checks := map[string]bool{
        "database": dm.checkDatabaseHealth(),
        "redis":    dm.checkRedisHealth(),
        "external_api": dm.checkExternalAPIHealth(),
    }
    
    // Check if all health checks pass
    allHealthy := true
    for name, healthy := range checks {
        if !healthy {
            allHealthy = false
            log.Printf("Health check failed: %s", name)
        }
    }
    
    if allHealthy {
        w.WriteHeader(http.StatusOK)
        w.Write([]byte("healthy"))
    } else {
        w.WriteHeader(http.StatusServiceUnavailable)
        w.Write([]byte("unhealthy"))
    }
}
// Readiness check handler
func (dm DeploymentManager) ReadinessCheck(w http.ResponseWriter, r http.Request) {
    // Perform readiness checks
    checks := map[string]bool{
        "database_connection": dm.checkDatabaseConnection(),
        "cache_connection":    dm.checkCacheConnection(),
        "configuration_loaded": dm.checkConfigurationLoaded(),
    }
    
    // Check if all readiness checks pass
    allReady := true
    for name, ready := range checks {
        if !ready {
            allReady = false
            log.Printf("Readiness check failed: %s", name)
        }
    }
    
    if allReady {
        w.WriteHeader(http.StatusOK)
        w.Write([]byte("ready"))
    } else {
        w.WriteHeader(http.StatusServiceUnavailable)
        w.Write([]byte("not ready"))
    }
}
// Helper methods
func (dm DeploymentManager) getCurrentDeployment(ctx context.Context, appName string) (appsv1.Deployment, error) {
    return dm.clientset.AppsV1().Deployments("default").Get(ctx, appName, metav1.GetOptions{})
}
func (dm DeploymentManager) createGreenDeployment(current appsv1.Deployment, newImage string) *appsv1.Deployment {
    green := current.DeepCopy()
    green.Name = fmt.Sprintf("%s-green", current.Name)
    green.Spec.Template.Spec.Containers[0].Image = newImage
    return green
}
func (dm *DeploymentManager) waitForDeploymentReady(ctx context.Context, deploymentName string) error {
    for {
        deployment, err := dm.getDeployment(ctx, deploymentName)
        if err != nil {
            return err
        }
        
        if deployment.Status.ReadyReplicas == *deployment.Spec.Replicas {
            return nil
        }
        
        time.Sleep(5 * time.Second)
    }
}
func (dm DeploymentManager) runHealthChecks(ctx context.Context, deployment appsv1.Deployment) error {
    // Implementation depends on your health check logic
    return nil
}
func (dm *DeploymentManager) switchTraffic(ctx context.Context, appName, greenDeploymentName string) error {
    // Implementation depends on your traffic management (e.g., Istio, nginx)
    return nil
}func (dm *DeploymentManager) scaleDownDeployment(ctx context.Context, deploymentName string) error {
    deployment, err := dm.getDeployment(ctx, deploymentName)
    if err != nil {
        return err
    }
    
    replicas := int32(0)
    deployment.Spec.Replicas = &replicas
    
    return dm.updateDeployment(ctx, deployment)
}

🔄 Advanced Deployment Patterns

Multi-Environment Deployment

Multi-environment deployment configuration
environment_deployments: #deployment("""
    production -> Production deployment
        strategy: "blue_green"
        replicas: 5
        resources:
            cpu: "1000m"
            memory: "2Gi"
        autoscaling:
            min: 3
            max: 10
        monitoring: true
        alerting: true
    
    staging -> Staging deployment
        strategy: "rolling"
        replicas: 2
        resources:
            cpu: "500m"
            memory: "1Gi"
        autoscaling:
            min: 1
            max: 5
        monitoring: true
        alerting: false
    
    development -> Development deployment
        strategy: "canary"
        replicas: 1
        resources:
            cpu: "250m"
            memory: "512Mi"
        autoscaling: false
        monitoring: false
        alerting: false
""")

Infrastructure as Code

Infrastructure as code configuration
infrastructure_code: #deployment("""
    kubernetes -> Kubernetes infrastructure
        namespace: "production"
        ingress:
            host: "api.example.com"
            tls: true
            annotations:
                cert-manager.io/cluster-issuer: "letsencrypt-prod"
        service:
            type: "ClusterIP"
            port: 8080
        configmap:
            name: "app-config"
            data:
                environment: "production"
                log_level: "info"
        secret:
            name: "app-secrets"
            type: "Opaque"
    
    monitoring -> Monitoring infrastructure
        prometheus: true
        grafana: true
        alertmanager: true
        jaeger: true
        loki: true
""")

🛡️ Security Features

Deployment Security Configuration

Deployment security configuration
deployment_security: #deployment("""
    container_security -> Container security
        run_as_non_root: true
        read_only_root_filesystem: true
        allow_privilege_escalation: false
        capabilities:
            drop: ["ALL"]
        seccomp_profile: "runtime/default"
    
    network_security -> Network security
        network_policy: true
        ingress_rules:
            - from: ["app=frontend"]
              ports: ["8080"]
        egress_rules:
            - to: ["app=database"]
              ports: ["5432"]
    
    secret_management -> Secret management
        vault_integration: true
        secret_rotation: true
        encryption_at_rest: true
        encryption_in_transit: true
""")

⚡ Performance Optimization

Deployment Performance Configuration

Deployment performance configuration
deployment_performance: #deployment("""
    resource_optimization -> Resource optimization
        cpu_requests: "500m"
        cpu_limits: "1000m"
        memory_requests: "512Mi"
        memory_limits: "1Gi"
        hpa_enabled: true
        vpa_enabled: true
    
    scaling_configuration -> Scaling configuration
        horizontal_scaling:
            min_replicas: 2
            max_replicas: 10
            target_cpu_utilization: 70
            target_memory_utilization: 80
        vertical_scaling:
            enabled: true
            update_policy: "Auto"
    
    caching_strategy -> Caching strategy
        redis_cluster: true
        cache_size: "2Gi"
        persistence: true
        backup_enabled: true
""")

🔧 Error Handling

Deployment Error Configuration

Deployment error handling configuration
deployment_errors: #deployment("""
    rollback_strategy -> Rollback strategy
        automatic_rollback: true
        rollback_threshold: 0.05
        rollback_window: 10m
        health_check_failure_threshold: 3
    
    failure_handling -> Failure handling
        max_retries: 3
        retry_delay: 30s
        exponential_backoff: true
        circuit_breaker: true
    
    monitoring_and_alerting -> Monitoring and alerting
        deployment_failure_alert: true
        health_check_alert: true
        resource_usage_alert: true
        notification_channels: ["slack", "email"]
""")

🎯 Real-World Example

Complete Deployment Configuration

deployment-config.tsk - Complete deployment configuration
Environment configuration
environment: #env("ENVIRONMENT", "development")
version: #env("APP_VERSION", "1.0.0")
Deployment strategies
strategies: #deployment("""
    # Production deployment
    production -> Production deployment strategy
        strategy: "blue_green"
        health_check: "/health"
        readiness_check: "/ready"
        rollback_threshold: 0.05
        switch_timeout: 30s
        pre_deployment_hook: "backup_database"
        post_deployment_hook: "run_migrations"
        monitoring: true
        alerting: true
    
    # Staging deployment
    staging -> Staging deployment strategy
        strategy: "rolling"
        max_unavailable: 1
        max_surge: 2
        health_check: "/health"
        readiness_check: "/ready"
        monitoring: true
        alerting: false
    
    # Development deployment
    development -> Development deployment strategy
        strategy: "canary"
        initial_traffic: 0.1
        increment: 0.1
        interval: 5m
        max_traffic: 1.0
        health_check: "/health"
        monitoring: false
        alerting: false
""")
Container configuration
containers: #deployment("""
    # Main application container
    app_container -> Main application container
        image: "myapp:#env('APP_VERSION')"
        port: 8080
        resources:
            cpu_requests: "500m"
            cpu_limits: "1000m"
            memory_requests: "512Mi"
            memory_limits: "1Gi"
        health_check:
            path: "/health"
            initial_delay: 30s
            period: 10s
            timeout: 5s
            failure_threshold: 3
        readiness_check:
            path: "/ready"
            initial_delay: 5s
            period: 5s
            timeout: 3s
            failure_threshold: 3
        security:
            run_as_non_root: true
            read_only_root_filesystem: true
            allow_privilege_escalation: false
        environment:
            - name: "ENVIRONMENT"
              value: "#env('ENVIRONMENT')"
            - name: "LOG_LEVEL"
              value: "info"
    
    # Sidecar containers
    nginx_sidecar -> Nginx sidecar container
        image: "nginx:alpine"
        port: 80
        resources:
            cpu_requests: "100m"
            cpu_limits: "200m"
            memory_requests: "128Mi"
            memory_limits: "256Mi"
        config:
            nginx_conf: "/etc/nginx/nginx.conf"
    
    redis_sidecar -> Redis sidecar container
        image: "redis:alpine"
        port: 6379
        resources:
            cpu_requests: "200m"
            cpu_limits: "500m"
            memory_requests: "256Mi"
            memory_limits: "512Mi"
        persistence:
            enabled: true
            size: "1Gi"
""")
Infrastructure configuration
infrastructure: #deployment("""
    # Kubernetes configuration
    kubernetes -> Kubernetes deployment configuration
        namespace: "#env('ENVIRONMENT')"
        replicas: #if(#env('ENVIRONMENT') == 'production', 5, 2)
        autoscaling:
            enabled: true
            min_replicas: #if(#env('ENVIRONMENT') == 'production', 3, 1)
            max_replicas: #if(#env('ENVIRONMENT') == 'production', 10, 5)
            target_cpu_utilization: 70
            target_memory_utilization: 80
        ingress:
            enabled: true
            host: "#env('ENVIRONMENT')-api.example.com"
            tls: true
            annotations:
                cert-manager.io/cluster-issuer: "letsencrypt-prod"
                nginx.ingress.kubernetes.io/ssl-redirect: "true"
        service:
            type: "ClusterIP"
            port: 8080
            target_port: 8080
        configmap:
            name: "app-config"
            data:
                environment: "#env('ENVIRONMENT')"
                log_level: "info"
                database_url: "#env('DATABASE_URL')"
        secret:
            name: "app-secrets"
            type: "Opaque"
            data:
                api_key: "#env('API_KEY')"
                jwt_secret: "#env('JWT_SECRET')"
    
    # Monitoring infrastructure
    monitoring -> Monitoring infrastructure
        prometheus: true
        grafana: true
        alertmanager: true
        jaeger: true
        loki: true
        retention: #if(#env('ENVIRONMENT') == 'production', '30d', '7d')
    
    # Storage configuration
    storage -> Storage configuration
        persistent_volumes: true
        backup_enabled: true
        backup_schedule: "0 2   *"
        retention_policy: "30d"
""")
Security configuration
security: #deployment("""
    # Container security
    container_security -> Container security configuration
        run_as_non_root: true
        read_only_root_filesystem: true
        allow_privilege_escalation: false
        capabilities:
            drop: ["ALL"]
        seccomp_profile: "runtime/default"
        apparmor_profile: "runtime/default"
    
    # Network security
    network_security -> Network security configuration
        network_policy: true
        ingress_rules:
            - from: ["app=frontend"]
              ports: ["8080"]
        egress_rules:
            - to: ["app=database"]
              ports: ["5432"]
            - to: ["app=redis"]
              ports: ["6379"]
        tls_enabled: true
        mTLS_enabled: true
    
    # Secret management
    secret_management -> Secret management configuration
        vault_integration: true
        secret_rotation: true
        rotation_interval: "24h"
        encryption_at_rest: true
        encryption_in_transit: true
        access_control: true
        audit_logging: true
""")
Performance configuration
performance: #deployment("""
    # Resource optimization
    resource_optimization -> Resource optimization configuration
        cpu_requests: "500m"
        cpu_limits: "1000m"
        memory_requests: "512Mi"
        memory_limits: "1Gi"
        hpa_enabled: true
        vpa_enabled: true
        resource_quotas: true
    
    # Scaling configuration
    scaling_configuration -> Scaling configuration
        horizontal_scaling:
            min_replicas: #if(#env('ENVIRONMENT') == 'production', 3, 1)
            max_replicas: #if(#env('ENVIRONMENT') == 'production', 10, 5)
            target_cpu_utilization: 70
            target_memory_utilization: 80
            target_custom_metric: "requests_per_second"
        vertical_scaling:
            enabled: true
            update_policy: "Auto"
            min_allowed: "100m"
            max_allowed: "2Gi"
    
    # Caching strategy
    caching_strategy -> Caching strategy configuration
        redis_cluster: true
        cache_size: "2Gi"
        persistence: true
        backup_enabled: true
        replication: true
        sentinel_enabled: true
""")
Error handling
error_handling: #deployment("""
    # Rollback strategy
    rollback_strategy -> Rollback strategy configuration
        automatic_rollback: true
        rollback_threshold: 0.05
        rollback_window: 10m
        health_check_failure_threshold: 3
        readiness_check_failure_threshold: 3
        max_rollback_history: 10
    
    # Failure handling
    failure_handling -> Failure handling configuration
        max_retries: 3
        retry_delay: 30s
        exponential_backoff: true
        circuit_breaker: true
        timeout: 300s
        graceful_shutdown: true
        shutdown_timeout: 30s
    
    # Monitoring and alerting
    monitoring_and_alerting -> Monitoring and alerting configuration
        deployment_failure_alert: true
        health_check_alert: true
        resource_usage_alert: true
        performance_alert: true
        notification_channels: ["slack", "email", "pagerduty"]
        alert_thresholds:
            cpu_usage: 80
            memory_usage: 80
            error_rate: 5
            response_time: 2
""")

Go Deployment Application Implementation

package main
import (
    "fmt"
    "log"
    "net/http"
    "github.com/tusklang/go-sdk"
    "github.com/gorilla/mux"
)
type DeploymentConfig struct {
    Environment    string tsk:"environment"
    Version        string tsk:"version"
    Strategies     string tsk:"strategies"
    Containers     string tsk:"containers"
    Infrastructure string tsk:"infrastructure"
    Security       string tsk:"security"
    Performance    string tsk:"performance"
    ErrorHandling  string tsk:"error_handling"
}
func main() {
    // Load deployment configuration
    config := tusk.LoadConfig("deployment-config.tsk")
    
    var deploymentConfig DeploymentConfig
    if err := config.Unmarshal(&deploymentConfig); err != nil {
        log.Fatal("Failed to load deployment config:", err)
    }
    
    // Create deployment system from directives
    deployment := tusk.NewDeploymentSystem(deploymentConfig)
    
    // Create router
    router := mux.NewRouter()
    
    // Apply deployment middleware
    tusk.ApplyDeploymentMiddleware(router, deployment)
    
    // Setup routes
    setupRoutes(router, deployment)
    
    // Start server
    addr := fmt.Sprintf(":%s", #env("PORT", "8080"))
    log.Printf("Starting deployment server on %s in %s mode", addr, deploymentConfig.Environment)
    
    if err := http.ListenAndServe(addr, router); err != nil {
        log.Fatal("Deployment server failed:", err)
    }
}func setupRoutes(router mux.Router, deployment tusk.DeploymentSystem) {
    // Health check endpoints
    router.HandleFunc("/health", deployment.HealthCheck).Methods("GET")
    router.HandleFunc("/ready", deployment.ReadyCheck).Methods("GET")
    
    // Deployment management endpoints
    deploymentRouter := router.PathPrefix("/deployment").Subrouter()
    deploymentRouter.Use(authMiddleware)
    
    deploymentRouter.HandleFunc("/deploy", deployment.DeployHandler).Methods("POST")
    deploymentRouter.HandleFunc("/rollback", deployment.RollbackHandler).Methods("POST")
    deploymentRouter.HandleFunc("/status", deployment.StatusHandler).Methods("GET")
    deploymentRouter.HandleFunc("/logs", deployment.LogsHandler).Methods("GET")
    
    // API routes
    api := router.PathPrefix("/api").Subrouter()
    api.Use(deployment.Middleware())
    
    api.HandleFunc("/users", usersHandler).Methods("GET", "POST")
    api.HandleFunc("/users/{id}", userHandler).Methods("GET", "PUT", "DELETE")
}

🎯 Best Practices

1. Use Appropriate Deployment Strategies

Choose the right deployment strategy for each environment
strategy_selection: #deployment("""
    # Blue-green for production (zero downtime)
    production -> blue_green -> health_check:/health,rollback:0.05
    
    # Rolling for staging (controlled updates)
    staging -> rolling -> max_unavailable:1,max_surge:2
    
    # Canary for development (gradual rollout)
    development -> canary -> initial:0.1,increment:0.1
""")

2. Implement Proper Health Checks

// Comprehensive health checks
func (dm *DeploymentManager) comprehensiveHealthCheck() bool {
    checks := map[string]bool{
        "database": dm.checkDatabaseHealth(),
        "redis":    dm.checkRedisHealth(),
        "external_api": dm.checkExternalAPIHealth(),
        "disk_space": dm.checkDiskSpace(),
        "memory": dm.checkMemoryUsage(),
    }
    
    for name, healthy := range checks {
        if !healthy {
            log.Printf("Health check failed: %s", name)
            return false
        }
    }
    
    return true
}

3. Use Environment-Specific Configuration

Different deployment settings for different environments
environment_deployment: #if(
    #env("ENVIRONMENT") == "production",
    #deployment("""
        replicas: 5
        resources: cpu:1000m,memory:2Gi
        autoscaling: min:3,max:10
        monitoring: true
    """),
    #deployment("""
        replicas: 2
        resources: cpu:500m,memory:1Gi
        autoscaling: min:1,max:5
        monitoring: false
    """)
)

4. Monitor Deployment Performance

// Deployment performance monitoring
func monitorDeploymentPerformance(deploymentName string, startTime time.Time) {
    duration := time.Since(startTime)
    
    // Record metrics
    metrics := map[string]interface{}{
        "deployment": deploymentName,
        "duration":   duration.Seconds(),
        "timestamp":  time.Now(),
    }
    
    if err := recordDeploymentMetrics(metrics); err != nil {
        log.Printf("Failed to record deployment metrics: %v", err)
    }
    
    // Alert on slow deployments
    if duration > 5*time.Minute {
        log.Printf("Slow deployment: %s took %v", deploymentName, duration)
    }
}

🎯 Summary

Deployment directives in TuskLang provide a powerful, declarative way to define deployment systems. They enable:

- Declarative deployment configuration that is easy to understand and maintain - Flexible deployment strategies including blue-green, rolling, and canary deployments - Comprehensive infrastructure management with Kubernetes and cloud provider integration - Built-in security features including container security and network policies - Performance optimization with resource management and auto-scaling

The Go SDK seamlessly integrates deployment directives with existing Go deployment libraries, making them feel like native Go features while providing the power and flexibility of TuskLang's directive system.

Next: Explore scaling directives, security directives, and other specialized directive types in the following guides.

← Back to Go Documentation View All Docs →

🐹 Deployment Directives - Go

Deployment Directives - Go

🎯 What Are Deployment Directives?

🚀 Why Deployment Directives Matter

Traditional Deployment Development

TuskLang Deployment Directives - Declarative & Dynamic

deployment.tsk - Complete deployment definition

📋 Deployment Directive Types

1. Strategy Directives (#deployment_strategies)

2. Container Directives (#deployment_containers)

3. Infrastructure Directives (#deployment_infrastructure)

4. Environment Directives (#deployment_environments)

🔧 Basic Deployment Directive Syntax

Simple Deployment Strategy

Basic deployment strategy

Deployment Strategy with Configuration

Deployment strategy with detailed configuration

Multiple Deployment Strategies

Multiple deployment strategies

🎯 Go Integration Patterns

Struct Tags for Deployment Directives

Deployment Application Setup

Deployment Handler Implementation

🔄 Advanced Deployment Patterns

Multi-Environment Deployment

Multi-environment deployment configuration

Infrastructure as Code

Infrastructure as code configuration

🛡️ Security Features

Deployment Security Configuration

Deployment security configuration

⚡ Performance Optimization

Deployment Performance Configuration

Deployment performance configuration

🔧 Error Handling

Deployment Error Configuration

Deployment error handling configuration

🎯 Real-World Example

Complete Deployment Configuration

deployment-config.tsk - Complete deployment configuration

Environment configuration

Deployment strategies

Container configuration

Infrastructure configuration

Security configuration

Performance configuration

Error handling