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101 lines
2.6 KiB
101 lines
2.6 KiB
package config
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import (
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"github.com/analogj/go-util/utils"
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"github.com/analogj/scrutiny/collector/pkg/errors"
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"github.com/analogj/scrutiny/collector/pkg/models"
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"github.com/mitchellh/mapstructure"
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"github.com/spf13/viper"
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"log"
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"os"
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)
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// When initializing this class the following methods must be called:
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// Config.New
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// Config.Init
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// This is done automatically when created via the Factory.
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type configuration struct {
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*viper.Viper
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}
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//Viper uses the following precedence order. Each item takes precedence over the item below it:
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// explicit call to Set
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// flag
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// env
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// config
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// key/value store
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// default
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func (c *configuration) Init() error {
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c.Viper = viper.New()
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//set defaults
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c.SetDefault("host.id", "")
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c.SetDefault("devices", []string{})
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//c.SetDefault("collect.short.command", "-a -o on -S on")
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//if you want to load a non-standard location system config file (~/drawbridge.yml), use ReadConfig
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c.SetConfigType("yaml")
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//c.SetConfigName("drawbridge")
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//c.AddConfigPath("$HOME/")
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//CLI options will be added via the `Set()` function
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return nil
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}
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func (c *configuration) ReadConfig(configFilePath string) error {
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configFilePath, err := utils.ExpandPath(configFilePath)
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if err != nil {
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return err
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}
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if !utils.FileExists(configFilePath) {
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log.Printf("No configuration file found at %v. Using Defaults.", configFilePath)
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return errors.ConfigFileMissingError("The configuration file could not be found.")
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}
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//validate config file contents
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//err = c.ValidateConfigFile(configFilePath)
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//if err != nil {
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// log.Printf("Config file at `%v` is invalid: %s", configFilePath, err)
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// return err
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//}
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log.Printf("Loading configuration file: %s", configFilePath)
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config_data, err := os.Open(configFilePath)
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if err != nil {
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log.Printf("Error reading configuration file: %s", err)
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return err
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}
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err = c.MergeConfig(config_data)
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if err != nil {
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return err
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}
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return c.ValidateConfig()
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}
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// This function ensures that the merged config works correctly.
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func (c *configuration) ValidateConfig() error {
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//TODO:
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// check that device prefix matches OS
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// check that schema of config file is valid
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return nil
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}
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func (c *configuration) GetScanOverrides() []models.ScanOverride {
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// we have to support 2 types of device types.
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// - simple device type (device_type: 'sat')
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// and list of device types (type: \n- 3ware,0 \n- 3ware,1 \n- 3ware,2)
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// GetString will return "" if this is a list of device types.
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overrides := []models.ScanOverride{}
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c.UnmarshalKey("devices", &overrides, func(c *mapstructure.DecoderConfig) { c.WeaklyTypedInput = true })
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return overrides
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}
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