func PostNotificationEventToSlackChannel(config config.SlackConfig, event parser.NotificationEvent) (err error) {
f, err := os.OpenFile("/var/log/redis/sentinel.log", os.O_RDWR|os.O_CREATE|os.O_APPEND, 0666)
if err != nil {
log.Printf("error opening log file: %v", err)
}
defer f.Close()
log.SetOutput(f)
doTrigger := contains(config.TriggerOn, event.Eventname)
hostname, err := GetMyFQDN()
if !doTrigger {
return nil
}
api := slack.New(config.Token)
channel, err := api.FindChannelByName(config.Channel)
levelColor := "warning"
// switch through event to determine attachment color
switch event.Role {
case "sentinel":
levelColor = "danger"
}
switch event.Eventname {
case "+odown", "-failover-abort-no-good-slave":
levelColor = "danger"
case "-odown", "-sdown":
levelColor = "good"
}
att := slack.Attachment{Color: levelColor, AuthorName: config.AuthorName}
att.Title = fmt.Sprintf("Sentinel event")
eventField := slack.AttachmentField{Title: "Event Name", Value: event.Eventname, Short: true}
podField := slack.AttachmentField{Title: "Pod Name", Value: event.Podname, Short: true}
roleField := slack.AttachmentField{Title: "Role", Value: event.Role, Short: true}
reporterField := slack.AttachmentField{Title: "Reporter", Value: hostname, Short: true}
att.Fields = []*slack.AttachmentField{&eventField, &podField, &roleField, &reporterField}
if err != nil {
return (err)
}
var msg string
switch levelColor {
case "good":
msg = "Phew, it has recovered."
case "danger":
msg = "UHOH! Something is broken."
case "warning":
msg = "Heads up, something isn't looking right."
}
atts := []*slack.Attachment{&att}
msgopt := slack.ChatPostMessageOpt{AsUser: false, Attachments: atts, Username: config.Username}
err = api.ChatPostMessage(channel.Id, msg, &msgopt)
return err
}
