Initial commit.

internal/config/manager.go

@@ -0,0 +1,167 @@
+package config
+
+import (
+	"fmt"
+	"path/filepath"
+
+	"github.com/wild-cloud/wild-central/daemon/internal/storage"
+	"github.com/wild-cloud/wild-central/daemon/internal/tools"
+)
+
+// Manager handles configuration file operations with idempotency
+type Manager struct {
+	yq *tools.YQ
+}
+
+// NewManager creates a new config manager
+func NewManager() *Manager {
+	return &Manager{
+		yq: tools.NewYQ(),
+	}
+}
+
+// EnsureInstanceConfig ensures an instance config file exists with proper structure
+func (m *Manager) EnsureInstanceConfig(instancePath string) error {
+	configPath := filepath.Join(instancePath, "config.yaml")
+
+	// Check if config already exists
+	if storage.FileExists(configPath) {
+		// Validate existing config
+		if err := m.yq.Validate(configPath); err != nil {
+			return fmt.Errorf("invalid config file: %w", err)
+		}
+		return nil
+	}
+
+	// Create minimal config structure
+	initialConfig := `# Wild Cloud Instance Configuration
+baseDomain: ""
+domain: ""
+internalDomain: ""
+dhcpRange: ""
+backup:
+  root: ""
+nfs:
+  host: ""
+  mediaPath: ""
+cluster:
+  name: ""
+  loadBalancerIp: ""
+  ipAddressPool: ""
+  hostnamePrefix: ""
+  certManager:
+    cloudflare:
+      domain: ""
+      zoneID: ""
+  externalDns:
+    ownerId: ""
+  nodes:
+    talos:
+      version: ""
+      schematicId: ""
+    control:
+      vip: ""
+    activeNodes: []
+`
+
+	// Ensure instance directory exists
+	if err := storage.EnsureDir(instancePath, 0755); err != nil {
+		return err
+	}
+
+	// Write config with proper permissions
+	if err := storage.WriteFile(configPath, []byte(initialConfig), 0644); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// GetConfigValue retrieves a value from a config file
+func (m *Manager) GetConfigValue(configPath, key string) (string, error) {
+	if !storage.FileExists(configPath) {
+		return "", fmt.Errorf("config file not found: %s", configPath)
+	}
+
+	value, err := m.yq.Get(configPath, fmt.Sprintf(".%s", key))
+	if err != nil {
+		return "", fmt.Errorf("getting config value %s: %w", key, err)
+	}
+
+	return value, nil
+}
+
+// SetConfigValue sets a value in a config file
+func (m *Manager) SetConfigValue(configPath, key, value string) error {
+	if !storage.FileExists(configPath) {
+		return fmt.Errorf("config file not found: %s", configPath)
+	}
+
+	// Acquire lock before modifying
+	lockPath := configPath + ".lock"
+	return storage.WithLock(lockPath, func() error {
+		return m.yq.Set(configPath, fmt.Sprintf(".%s", key), value)
+	})
+}
+
+// EnsureConfigValue sets a value only if it's not already set (idempotent)
+func (m *Manager) EnsureConfigValue(configPath, key, value string) error {
+	if !storage.FileExists(configPath) {
+		return fmt.Errorf("config file not found: %s", configPath)
+	}
+
+	// Check if value already set
+	currentValue, err := m.GetConfigValue(configPath, key)
+	if err == nil && currentValue != "" && currentValue != "null" {
+		// Value already set, skip
+		return nil
+	}
+
+	// Set the value
+	return m.SetConfigValue(configPath, key, value)
+}
+
+// ValidateConfig validates a config file
+func (m *Manager) ValidateConfig(configPath string) error {
+	if !storage.FileExists(configPath) {
+		return fmt.Errorf("config file not found: %s", configPath)
+	}
+
+	return m.yq.Validate(configPath)
+}
+
+// CopyConfig copies a config file to a new location
+func (m *Manager) CopyConfig(srcPath, dstPath string) error {
+	if !storage.FileExists(srcPath) {
+		return fmt.Errorf("source config file not found: %s", srcPath)
+	}
+
+	// Read source
+	content, err := storage.ReadFile(srcPath)
+	if err != nil {
+		return err
+	}
+
+	// Ensure destination directory exists
+	if err := storage.EnsureDir(filepath.Dir(dstPath), 0755); err != nil {
+		return err
+	}
+
+	// Write destination
+	return storage.WriteFile(dstPath, content, 0644)
+}
+
+// GetInstanceConfigPath returns the path to an instance's config file
+func GetInstanceConfigPath(dataDir, instanceName string) string {
+	return filepath.Join(dataDir, "instances", instanceName, "config.yaml")
+}
+
+// GetInstanceSecretsPath returns the path to an instance's secrets file
+func GetInstanceSecretsPath(dataDir, instanceName string) string {
+	return filepath.Join(dataDir, "instances", instanceName, "secrets.yaml")
+}
+
+// GetInstancePath returns the path to an instance directory
+func GetInstancePath(dataDir, instanceName string) string {
+	return filepath.Join(dataDir, "instances", instanceName)
+}