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watchtower/notifications/notifier.go

67 lines
1.6 KiB
Go

package notifications
import (
"github.com/johntdyer/slackrus"
log "github.com/sirupsen/logrus"
"github.com/spf13/cobra"
)
type typeNotifier interface {
StartNotification()
SendNotification()
}
// Notifier can send log output as notification to admins, with optional batching.
type Notifier struct {
types []typeNotifier
}
// NewNotifier creates and returns a new Notifier, using global configuration.
func NewNotifier(c *cobra.Command) *Notifier {
n := &Notifier{}
f := c.PersistentFlags()
level, _ := f.GetString("notifications-level")
logLevel, err := log.ParseLevel(level)
if err != nil {
log.Fatalf("Notifications invalid log level: %s", err.Error())
}
acceptedLogLevels := slackrus.LevelThreshold(logLevel)
// Parse types and create notifiers.
types, _ := f.GetStringSlice("notifications")
for _, t := range types {
var tn typeNotifier
switch t {
case emailType:
tn = newEmailNotifier(c, acceptedLogLevels)
case slackType:
tn = newSlackNotifier(c, acceptedLogLevels)
case msTeamsType:
tn = newMsTeamsNotifier(c, acceptedLogLevels)
default:
log.Fatalf("Unknown notification type %q", t)
}
n.types = append(n.types, tn)
}
return n
}
// StartNotification starts a log batch. Notifications will be accumulated after this point and only sent when SendNotification() is called.
func (n *Notifier) StartNotification() {
for _, t := range n.types {
t.StartNotification()
}
}
// SendNotification sends any notifications accumulated since StartNotification() was called.
func (n *Notifier) SendNotification() {
for _, t := range n.types {
t.SendNotification()
}
}