// Fire is invoked by logrus and sends log to fluentd logger.
func (hook *FluentHook) Fire(entry *logrus.Entry) error {
var logger *fluent.Fluent
var err error
switch {
case hook.Fluent != nil:
logger = hook.Fluent
default:
logger, err = fluent.New(fluent.Config{
FluentHost: hook.host,
FluentPort: hook.port,
})
if err != nil {
return err
}
defer logger.Close()
}
// Create a map for passing to FluentD
data := make(logrus.Fields)
for k, v := range entry.Data {
if _, ok := hook.ignoreFields[k]; ok {
continue
}
if fn, ok := hook.filters[k]; ok {
v = fn(v)
}
data[k] = v
}
setLevelString(entry, data)
tag := hook.getTagAndDel(entry, data)
if tag != entry.Message {
setMessage(entry, data)
}
fluentData := ConvertToValue(data, TagName)
err = logger.PostWithTime(tag, entry.Time, fluentData)
return err
}
