feat(rocketchat): support plain text attribute

Add plainText attribute to set plain text message additionally to attachment.

Signed-off-by: Patrick Remy <patrick-remy@users.noreply.github.com>

Author: Patrick-Remy

config/notifiers.go

@@ -975,6 +975,7 @@ type RocketchatConfig struct {
 	Title       string                        `yaml:"title,omitempty" json:"title,omitempty"`
 	TitleLink   string                        `yaml:"title_link,omitempty" json:"title_link,omitempty"`
 	Text        string                        `yaml:"text,omitempty" json:"text,omitempty"`
+	PlainText   string                        `yaml:"plain_text,omitempty" json:"plain_text,omitempty"`
 	Fields      []*RocketchatAttachmentField  `yaml:"fields,omitempty" json:"fields,omitempty"`
 	ShortFields bool                          `yaml:"short_fields" json:"short_fields,omitempty"`
 	Emoji       string                        `yaml:"emoji,omitempty" json:"emoji,omitempty"`

docs/configuration.md

@@ -1360,12 +1360,15 @@ token_id_file: <filepath>
 
 
 [ color: <tmpl_string | default '{{ if eq .Status "firing" }}red{{ else }}green{{ end }}' ]
-[ emoji <tmpl_string | default = '{{ template "rocketchat.default.emoji" . }}'
-[ icon_url <tmpl_string | default = '{{ template "rocketchat.default.iconurl" . }}'
-[ text <tmpl_string | default = '{{ template "rocketchat.default.text" . }}'
-[ title <tmpl_string | default = '{{ template "rocketchat.default.title" . }}'
-[ titleLink <tmpl_string | default = '{{ template "rocketchat.default.titlelink" . }}'
-[ text: <tmpl_string | default = '{{ template "rocketchat.default.text" . }}'
+[ emoji: <tmpl_string | default = '{{ template "rocketchat.default.emoji" . }}' ]
+[ icon_url: <tmpl_string | default = '{{ template "rocketchat.default.iconurl" . }}' ]
+[ text: <tmpl_string | default = '{{ template "rocketchat.default.text" . }}' ]
+[ title: <tmpl_string | default = '{{ template "rocketchat.default.title" . }}' ]
+[ titleLink: <tmpl_string | default = '{{ template "rocketchat.default.titlelink" . }}' ]
+[ text: <tmpl_string | default = '{{ template "rocketchat.default.text" . }}' ]
+# rocketchat notifications do not contain attachment title, you could set this
+# to {{ template "rocketchat.default.title" . }} to include title in push
+[ plain_text: <tmpl_string> ]
 fields:
   [ <rocketchat_field_config> ... ]
 [ image_url <tmpl_string> ]

notify/rocketchat/rocketchat.go

@@ -46,9 +46,9 @@ type Notifier struct {
 	postJSONFunc func(ctx context.Context, client *http.Client, url string, body io.Reader) (*http.Response, error)
 }
 
-// PostMessage Payload for postmessage rest API
+// PostMessage.Attachment Payload for postmessage rest API
 //
-// https://rocket.chat/docs/developer-guides/rest-api/chat/postmessage/
+// https://developer.rocket.chat/apidocs/post-message
 type Attachment struct {
 	Title     string                              `json:"title,omitempty"`
 	TitleLink string                              `json:"title_link,omitempty"`
@@ -62,11 +62,10 @@ type Attachment struct {
 
 // PostMessage Payload for postmessage rest API
 //
-// https://rocket.chat/docs/developer-guides/rest-api/chat/postmessage/
+// https://developer.rocket.chat/apidocs/post-message
 type PostMessage struct {
 	Channel     string                              `json:"channel,omitempty"`
 	Text        string                              `json:"text,omitempty"`
-	ParseUrls   bool                                `json:"parseUrls,omitempty"`
 	Alias       string                              `json:"alias,omitempty"`
 	Emoji       string                              `json:"emoji,omitempty"`
 	Avatar      string                              `json:"avatar,omitempty"`
@@ -205,6 +204,7 @@ func (n *Notifier) Notify(ctx context.Context, as ...*types.Alert) (bool, error)
 		Channel:     tmplText(n.conf.Channel),
 		Emoji:       tmplText(n.conf.Emoji),
 		Avatar:      tmplText(n.conf.IconURL),
+		Text:        tmplText(n.conf.PlainText),
 		Attachments: []Attachment{*att},
 	}
 	if err != nil {