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dc12a1ac7f
* feat: allow hostname override for email notifier As it currently stands all notifiers utilise `os.Hostname` to populate their titles/subjects. When utilising Docker with a bridged network if you set the hostname for a container to an external DNS hostname Docker's internal DNS resolver will override said hostname for all containers within the bridged network. This change allows a user to specify what hostname should be represented in the email notifications without having to change the `os.Hostname`. * feat: allow custom hostname for all notifiers * docs: adjust notification hostname flag
98 lines
2.7 KiB
Go
98 lines
2.7 KiB
Go
package notifications
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import (
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"time"
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"github.com/spf13/cobra"
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shoutrrrSmtp "github.com/containrrr/shoutrrr/pkg/services/smtp"
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t "github.com/containrrr/watchtower/pkg/types"
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log "github.com/sirupsen/logrus"
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)
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const (
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emailType = "email"
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)
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type emailTypeNotifier struct {
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url string
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From, To string
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Server, User, Password, SubjectTag string
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Port int
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tlsSkipVerify bool
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entries []*log.Entry
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logLevels []log.Level
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delay time.Duration
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}
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// NewEmailNotifier is a factory method creating a new email notifier instance
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func NewEmailNotifier(c *cobra.Command, acceptedLogLevels []log.Level) t.ConvertibleNotifier {
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return newEmailNotifier(c, acceptedLogLevels)
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}
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func newEmailNotifier(c *cobra.Command, acceptedLogLevels []log.Level) t.ConvertibleNotifier {
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flags := c.PersistentFlags()
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from, _ := flags.GetString("notification-email-from")
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to, _ := flags.GetString("notification-email-to")
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server, _ := flags.GetString("notification-email-server")
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user, _ := flags.GetString("notification-email-server-user")
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password, _ := flags.GetString("notification-email-server-password")
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port, _ := flags.GetInt("notification-email-server-port")
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tlsSkipVerify, _ := flags.GetBool("notification-email-server-tls-skip-verify")
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delay, _ := flags.GetInt("notification-email-delay")
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subjecttag, _ := flags.GetString("notification-email-subjecttag")
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n := &emailTypeNotifier{
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entries: []*log.Entry{},
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From: from,
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To: to,
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Server: server,
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User: user,
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Password: password,
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Port: port,
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tlsSkipVerify: tlsSkipVerify,
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logLevels: acceptedLogLevels,
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delay: time.Duration(delay) * time.Second,
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SubjectTag: subjecttag,
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}
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return n
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}
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func (e *emailTypeNotifier) GetURL(c *cobra.Command) (string, error) {
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conf := &shoutrrrSmtp.Config{
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FromAddress: e.From,
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FromName: "Watchtower",
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ToAddresses: []string{e.To},
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Port: uint16(e.Port),
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Host: e.Server,
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Subject: e.getSubject(c),
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Username: e.User,
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Password: e.Password,
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UseStartTLS: !e.tlsSkipVerify,
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UseHTML: false,
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Encryption: shoutrrrSmtp.EncMethods.Auto,
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Auth: shoutrrrSmtp.AuthTypes.None,
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}
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if len(e.User) > 0 {
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conf.Auth = shoutrrrSmtp.AuthTypes.Plain
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}
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if e.tlsSkipVerify {
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conf.Encryption = shoutrrrSmtp.EncMethods.None
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}
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return conf.GetURL().String(), nil
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}
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func (e *emailTypeNotifier) getSubject(c *cobra.Command) string {
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subject := GetTitle(c)
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if e.SubjectTag != "" {
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subject = e.SubjectTag + " " + subject
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}
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return subject
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}
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