wip v1.0.0

pkg/config/config.go

@@ -0,0 +1,90 @@
+package config
+
+import (
+	"fmt"
+	"os"
+	"time"
+
+	"gopkg.in/yaml.v3"
+)
+
+type Config struct {
+	Global Global          `yaml:"global"`
+	VRRP   []VRRPInstance  `yaml:"vrrp_instances"`
+	Health []HealthChecker `yaml:"health_checkers"`
+}
+
+type Global struct {
+	RouterID         string `yaml:"router_id"`
+	NotificationMail string `yaml:"notification_email"`
+}
+
+type VRRPInstance struct {
+	Name            string   `yaml:"name"`
+	Interface       string   `yaml:"interface"`
+	State           string   `yaml:"state"`
+	VirtualRouterID int      `yaml:"virtual_router_id"`
+	Priority        int      `yaml:"priority"`
+	VirtualIPs      []string `yaml:"virtual_ips"`
+	AdvertInterval  int      `yaml:"advert_interval"`
+	AuthType        string   `yaml:"auth_type"`
+	AuthPass        string   `yaml:"auth_pass"`
+	NotifyMaster    string   `yaml:"notify_master"`
+	NotifyBackup    string   `yaml:"notify_backup"`
+	NotifyFault     string   `yaml:"notify_fault"`
+	TrackScripts    []string `yaml:"track_scripts"`
+}
+
+type HealthChecker struct {
+	Name     string        `yaml:"name"`
+	Type     string        `yaml:"type"`
+	Interval time.Duration `yaml:"interval"`
+	Timeout  time.Duration `yaml:"timeout"`
+	Rise     int           `yaml:"rise"`
+	Fall     int           `yaml:"fall"`
+	Config   interface{}   `yaml:"config"`
+}
+
+func Load(path string) (*Config, error) {
+	data, err := os.ReadFile(path)
+	if err != nil {
+		return nil, fmt.Errorf("failed to read config file: %w", err)
+	}
+
+	var cfg Config
+	if err := yaml.Unmarshal(data, &cfg); err != nil {
+		return nil, fmt.Errorf("failed to parse config file: %w", err)
+	}
+
+	if err := validate(&cfg); err != nil {
+		return nil, fmt.Errorf("invalid configuration: %w", err)
+	}
+
+	return &cfg, nil
+}
+
+func validate(cfg *Config) error {
+	if cfg.Global.RouterID == "" {
+		return fmt.Errorf("global.router_id is required")
+	}
+
+	for i, vrrp := range cfg.VRRP {
+		if vrrp.Name == "" {
+			return fmt.Errorf("vrrp_instances[%d].name is required", i)
+		}
+		if vrrp.Interface == "" {
+			return fmt.Errorf("vrrp_instances[%d].interface is required", i)
+		}
+		if vrrp.VirtualRouterID < 1 || vrrp.VirtualRouterID > 255 {
+			return fmt.Errorf("vrrp_instances[%d].virtual_router_id must be between 1 and 255", i)
+		}
+		if vrrp.Priority < 1 || vrrp.Priority > 255 {
+			return fmt.Errorf("vrrp_instances[%d].priority must be between 1 and 255", i)
+		}
+		if len(vrrp.VirtualIPs) == 0 {
+			return fmt.Errorf("vrrp_instances[%d].virtual_ips cannot be empty", i)
+		}
+	}
+
+	return nil
+}