add settings yaml

internal/settings/settings.go

@@ -0,0 +1,60 @@
+package settings
+
+import (
+	"log/slog"
+	"os"
+	"vctp/internal/utils"
+
+	"gopkg.in/yaml.v2"
+)
+
+// SettingsYML struct holds various runtime data that is too cumbersome to specify via command line, eg replacement properties
+type SettingsYML struct {
+	Settings struct {
+		/*
+			Replacements []struct {
+				Key   string `yaml:"Key"`
+				Value string `yaml:"Value"`
+			} `yaml:"replacements"`
+
+			Omapi struct {
+				KeyName   string `yaml:"key_name"`
+				KeySecret string `yaml:"key_secret"`
+			} `yaml:"omapi"`
+		*/
+		TenantsToFilter    []string `yaml:"tenants_to_filter"`
+		NodeChargeClusters []string `yaml:"node_charge_clusters"`
+		SrmActiveActiveVms []string `yaml:"srm_activeactive_vms"`
+		VcenterAddresses   []string `yaml:"vcenter_addresses"`
+	} `yaml:"settings"`
+}
+
+func ReadYMLSettings(logger *slog.Logger, settingsPath string) (SettingsYML, error) {
+	// Create config structure
+	var settings SettingsYML
+
+	// Check for empty filename
+	if len(settingsPath) == 0 {
+		return settings, nil
+	}
+
+	path := utils.GetFilePath(settingsPath)
+
+	// Open config file
+	file, err := os.Open(path)
+	if err != nil {
+		return settings, err
+	}
+	logger.Debug("Opened settings yaml file", "file_path", path)
+	defer file.Close()
+
+	// Init new YAML decode
+	d := yaml.NewDecoder(file)
+
+	// Start YAML decoding from file
+	if err := d.Decode(&settings); err != nil {
+		return settings, err
+	}
+
+	return settings, nil
+}