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Add config validation logs on application start

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This commit is contained in:
TwinProduction 2020-09-22 17:46:40 -04:00
parent 4daf261d95
commit 286e8f8590
2 changed files with 44 additions and 7 deletions
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49
config/config.go
View File

@ -36,7 +36,7 @@ func Get() *Config {
} }
func Load(configFile string) error { func Load(configFile string) error {
log.Printf("[config][Load] Attempting to load config from configFile=%s", configFile) log.Printf("[config][Load] Reading configuration from configFile=%s", configFile)
cfg, err := readConfigurationFile(configFile) cfg, err := readConfigurationFile(configFile)
if err != nil { if err != nil {
if os.IsNotExist(err) { if os.IsNotExist(err) {
@ -75,13 +75,50 @@ func parseAndValidateConfigBytes(yamlBytes []byte) (config *Config, err error) {
// Parse configuration file // Parse configuration file
err = yaml.Unmarshal(yamlBytes, &config) err = yaml.Unmarshal(yamlBytes, &config)
// Check if the configuration file at least has services. // Check if the configuration file at least has services.
if config == nil || len(config.Services) == 0 { if config == nil || config.Services == nil || len(config.Services) == 0 {
err = ErrNoServiceInConfig err = ErrNoServiceInConfig
} else { } else {
// Set the default values if they aren't set validateAlertingConfig(config)
for _, service := range config.Services { validateServicesConfig(config)
service.Validate()
}
} }
return return
} }
func validateServicesConfig(config *Config) {
for _, service := range config.Services {
if config.Debug {
log.Printf("[config][validateServicesConfig] Validating service '%s'", service.Name)
}
service.ValidateAndSetDefaults()
}
log.Printf("[config][validateServicesConfig] Validated %d services", len(config.Services))
}
func validateAlertingConfig(config *Config) {
if config.Alerting == nil {
log.Printf("[config][validateAlertingConfig] Alerting is not configured")
return
}
var validProviders, invalidProviders []core.AlertType
if config.Alerting.Slack != nil && config.Alerting.Slack.IsValid() {
validProviders = append(validProviders, core.SlackAlert)
} else {
invalidProviders = append(invalidProviders, core.SlackAlert)
}
if config.Alerting.Twilio != nil && config.Alerting.Twilio.IsValid() {
validProviders = append(validProviders, core.TwilioAlert)
} else {
invalidProviders = append(invalidProviders, core.TwilioAlert)
}
if config.Alerting.PagerDuty != nil && config.Alerting.PagerDuty.IsValid() {
validProviders = append(validProviders, core.PagerDutyAlert)
} else {
invalidProviders = append(invalidProviders, core.PagerDutyAlert)
}
if config.Alerting.Custom != nil && config.Alerting.Custom.IsValid() {
validProviders = append(validProviders, core.CustomAlert)
} else {
invalidProviders = append(invalidProviders, core.CustomAlert)
}
log.Printf("[config][validateAlertingConfig] configuredProviders=%s; ignoredProviders=%s", validProviders, invalidProviders)
}

2
core/service.go
View File

@ -50,7 +50,7 @@ type Service struct {
NumberOfSuccessesInARow int NumberOfSuccessesInARow int
} }
func (service *Service) Validate() { func (service *Service) ValidateAndSetDefaults() {
// Set default values // Set default values
if service.Interval == 0 { if service.Interval == 0 {
service.Interval = 1 * time.Minute service.Interval = 1 * time.Minute