Merge pull request #5 from Downager/master

Add mention all switch in URL parameter

README.md

@@ -8,9 +8,15 @@ Example alertmanager webhook config:
   - url: http://alertmanager2hangoutschat.domain.com/alertmanager?url=https%3A%2F%2Fchat.googleapis.com%2Fv1%2Fspaces%2Fasdfasdf%2Fmessages%3Fkey%3DKEY%26token%3DTOKEN
 
 ```
-
 The endpoints takes the google webhook api as urlencoded GET parameter named "url". 
 
+If you don't want to mention all folks in the room, add `mention=false` in URL parameter:
+```
+  webhook_configs:
+  - url: http://alertmanager2hangoutschat.domain.com/alertmanager?mention=false&url=https%3A%2F%2Fchat.googleapis.com%2Fv1%2Fspaces%2Fasdfasdf%2Fmessages%3Fkey%3DKEY%26token%3DTOKEN
+```
+
+
 ### build binary
 
 ```

main.go

@@ -31,11 +31,14 @@ var logLevel = flag.String("log-level", "info", "Can be one of:"+strings.Join(va
 var templateString = flag.String("template-string", messageTemplate, "template for the messages sent to hangouts chat")
 
 var messageTemplate = `<users/all>
-*{{.QueryParams.Get "env" | toUpper }}: {{ .Labels.alertname }} - {{.Status | toUpper}}*
+*{{ .Labels.alertname }} - {{.Status | toUpper}}*
+{{ range .Labels.SortedPairs -}}
+*{{ .Name }}*: {{ .Value}}
+{{ end -}}
 {{ range .Annotations.SortedPairs -}}
-{{ .Name }}: {{ .Value}}
+*{{ .Name }}*: {{ .Value}}
 {{ end -}}
-Source: <{{ .GeneratorURL }}|Show in prometheus>
+Source: <{{ .GeneratorURL }}|Show in Prometheus>
 `
 
 func main() {
@@ -144,6 +147,11 @@ func sendAlert(data alerttemplate.Alert, getParams url.Values) error {
 		return err
 	}
 
+	mentionAll, err := url.Parse(getParams.Get("mention"))
+	if err != nil {
+		return err
+	}
+
 	alert := &alertData{
 		Alert:       data,
 		QueryParams: getParams,
@@ -153,6 +161,10 @@ func sendAlert(data alerttemplate.Alert, getParams url.Values) error {
 		return err
 	}
 
+	if mentionAll.String() == "false" {
+		tmpl = strings.Replace(tmpl, "<users/all>\n", "", 1)
+	}
+
 	textReq := &textRequest{
 		Text: tmpl,
 	}