Add a default log alert

This commit is contained in:
IamTheFij 2020-02-18 00:47:43 +00:00 committed by Ian Fijolek
parent 8b0d3b65cf
commit 9c21880efa
4 changed files with 45 additions and 12 deletions

View File

@ -112,3 +112,16 @@ func (alert Alert) Send(notice AlertNotice) (outputStr string, err error) {
return outputStr, err
}
// NewLogAlert creates an alert that does basic logging using echo
func NewLogAlert() *Alert {
return &Alert{
Name: "log",
Command: CommandOrShell{
Command: []string{
"echo",
"{{.MonitorName}} check has failed {{.FailureCount}} times",
},
},
}
}

View File

@ -50,6 +50,19 @@ func (cos *CommandOrShell) UnmarshalYAML(unmarshal func(interface{}) error) erro
func (config Config) IsValid() (isValid bool) {
isValid = true
// Validate alerts
if config.Alerts == nil || len(config.Alerts) == 0 {
// This should never happen because there is a default alert named 'log' for now
log.Printf("ERROR: Invalid alert configuration: Must provide at least one alert")
isValid = false
}
for _, alert := range config.Alerts {
if !alert.IsValid() {
log.Printf("ERROR: Invalid alert configuration: %s", alert.Name)
isValid = false
}
}
// Validate monitors
if config.Monitors == nil || len(config.Monitors) == 0 {
log.Printf("ERROR: Invalid monitor configuration: Must provide at least one monitor")
@ -74,18 +87,6 @@ func (config Config) IsValid() (isValid bool) {
}
}
// Validate alerts
if config.Alerts == nil || len(config.Alerts) == 0 {
log.Printf("ERROR: Invalid alert configuration: Must provide at least one alert")
isValid = false
}
for _, alert := range config.Alerts {
if !alert.IsValid() {
log.Printf("ERROR: Invalid alert configuration: %s", alert.Name)
isValid = false
}
}
return
}
@ -117,6 +118,16 @@ func LoadConfig(filePath string) (config Config, err error) {
log.Printf("DEBUG: Config values:\n%v\n", config)
}
// Intialize alerts list if not present
if config.Alerts == nil {
config.Alerts = map[string]*Alert{}
}
// Add log alert if not present
if _, ok := config.Alerts["log"]; !ok {
config.Alerts["log"] = NewLogAlert()
}
if !config.IsValid() {
err = errors.New("Invalid configuration")
return

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@ -12,6 +12,7 @@ func TestLoadConfig(t *testing.T) {
name string
}{
{"./test/valid-config.yml", false, "Valid config file"},
{"./test/valid-default-log-alert.yml", false, "Valid config file with default log alert"},
{"./test/does-not-exist", true, "Invalid config path"},
{"./test/invalid-config-type.yml", true, "Invalid config type for key"},
{"./test/invalid-config-missing-alerts.yml", true, "Invalid config missing alerts"},

View File

@ -0,0 +1,8 @@
---
check_interval: 1
monitors:
- name: Command
command: ['echo', '$PATH']
alert_down: ['log']
alert_every: 0