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138 lines
4.0 KiB
138 lines
4.0 KiB
package config
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import (
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"log"
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"os"
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"strings"
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"github.com/analogj/go-util/utils"
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"github.com/analogj/scrutiny/webapp/backend/pkg/errors"
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"github.com/spf13/viper"
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)
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const DB_USER_SETTINGS_SUBKEY = "user"
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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("web.listen.port", "8080")
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c.SetDefault("web.listen.host", "0.0.0.0")
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c.SetDefault("web.listen.basepath", "")
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c.SetDefault("web.src.frontend.path", "/opt/scrutiny/web")
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c.SetDefault("web.database.location", "/opt/scrutiny/config/scrutiny.db")
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c.SetDefault("log.level", "INFO")
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c.SetDefault("log.file", "")
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c.SetDefault("notify.urls", []string{})
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c.SetDefault("web.influxdb.scheme", "http")
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c.SetDefault("web.influxdb.host", "localhost")
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c.SetDefault("web.influxdb.port", "8086")
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c.SetDefault("web.influxdb.org", "scrutiny")
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c.SetDefault("web.influxdb.bucket", "metrics")
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c.SetDefault("web.influxdb.init_username", "admin")
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c.SetDefault("web.influxdb.init_password", "password12345")
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c.SetDefault("web.influxdb.token", "scrutiny-default-admin-token")
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c.SetDefault("web.influxdb.tls.insecure_skip_verify", false)
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c.SetDefault("web.influxdb.retention_policy", true)
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// c.SetDefault("disks.include", []string{})
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// c.SetDefault("disks.exclude", []string{})
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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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// configure env variable parsing.
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c.SetEnvPrefix("SCRUTINY")
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c.SetEnvKeyReplacer(strings.NewReplacer("-", "_", ".", "_"))
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c.AutomaticEnv()
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// CLI options will be added via the `Set()` function
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return c.ValidateConfig()
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}
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func (c *configuration) SubKeys(key string) []string {
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return c.Sub(key).AllKeys()
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}
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func (c *configuration) Sub(key string) Interface {
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config := configuration{
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Viper: c.Viper.Sub(key),
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}
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return &config
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}
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func (c *configuration) ReadConfig(configFilePath string) error {
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// make sure that we specify that this is the correct config path (for eventual WriteConfig() calls)
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c.SetConfigFile(configFilePath)
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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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//the following keys are deprecated, and no longer supported
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/*
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- notify.filter_attributes (replaced by metrics.status.filter_attributes SETTING)
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- notify.level (replaced by metrics.notify.level and metrics.status.threshold SETTING)
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*/
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//TODO add docs and upgrade doc.
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if c.IsSet("notify.filter_attributes") {
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return errors.ConfigValidationError("`notify.filter_attributes` configuration option is deprecated. Replaced by option in Dashboard Settings page")
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}
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if c.IsSet("notify.level") {
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return errors.ConfigValidationError("`notify.level` configuration option is deprecated. Replaced by option in Dashboard Settings page")
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}
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return nil
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}
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