Add support for Teams and Tags to OpsGenie notifier

Add Teams and Tags templated strings to OpsGenieConfig. Output must be comma-separated values.

config/notifiers.go

@@ -280,6 +280,8 @@ type OpsGenieConfig struct {
 	Description string            `yaml:"description"`
 	Source      string            `yaml:"source"`
 	Details     map[string]string `yaml:"details"`
+	Teams       string            `yaml:"teams"`
+	Tags        string            `yaml:"tags"`
 
 	// Catches all undefined fields and must be empty after parsing.
 	XXX map[string]interface{} `yaml:",inline"`

notify/impl.go

@@ -620,6 +620,8 @@ type opsGenieCreateMessage struct {
 	Message string            `json:"message"`
 	Details map[string]string `json:"details"`
 	Source  string            `json:"source"`
+	Teams   string            `json:"teams,omitempty"`
+	Tags    string            `json:"tags,omitempty"`
 }
 
 type opsGenieCloseMessage struct {
@@ -665,6 +667,8 @@ func (n *OpsGenie) Notify(ctx context.Context, as ...*types.Alert) error {
 			Message:         tmpl(n.conf.Description),
 			Details:         details,
 			Source:          tmpl(n.conf.Source),
+			Teams:           tmpl(n.conf.Teams),
+			Tags:            tmpl(n.conf.Tags),
 		}
 	}
 	if err != nil {