Files
flagger/pkg/notifier/gchat.go
Fabio Pinna cf8783ea37 Add support for Google Chat alerts (#953)
Add gchat alerting support

Signed-off-by: fpinna <fplkid@gmail.com>
2021-08-24 11:26:00 +03:00

121 lines
2.7 KiB
Go

/*
Copyright 2020 The Flux authors
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package notifier
import (
"fmt"
"net/url"
)
// Google Chat holds the incoming webhook URL
type GChat struct {
URL string
ProxyURL string
}
// GChatPayload holds the message
type GChatPayload struct {
Cards []GChatCards `json:"cards"`
}
// Start - GChatCards holds the canary analysis result
type GChatCards struct {
Header GChatHeader `json:"header"`
Sections []*GChatSections `json:"sections"`
}
type GChatHeader struct {
Title string `json:"title"`
SubTitle string `json:"subtitle"`
ImageUrl string `json:"imageUrl"`
}
type GChatSections struct {
Widgets []GChatWidgets `json:"widgets"`
}
type GChatWidgets struct {
TextParagraph GChatText `json:"textParagraph"`
}
type GChatField struct {
Name string `json:"name"`
Value string `json:"value"`
}
type GChatText struct {
Text string `json:"text"`
}
// NewGChat validates the GChat URL and returns a GChat object
func NewGChat(hookURL string, proxyURL string) (*GChat, error) {
_, err := url.ParseRequestURI(hookURL)
if err != nil {
return nil, fmt.Errorf("invalid Google Chat webhook URL %s", hookURL)
}
return &GChat{
URL: hookURL,
ProxyURL: proxyURL,
}, nil
}
// Post Google Chat message
func (s *GChat) Post(workload string, namespace string, message string, fields []Field, severity string) error {
facts := make([]*GChatSections, 0, len(fields))
facts = append(facts, &GChatSections{
Widgets: []GChatWidgets{
{
TextParagraph: GChatText{
Text: "<font color=#848484><strong>" + message + "</strong></font>",
},
},
},
})
for _, f := range fields {
facts = append(facts, &GChatSections{
Widgets: []GChatWidgets{
{
TextParagraph: GChatText{
Text: f.Name + "<br><font color=#848484><strong>" + f.Value + "</strong></font>",
},
},
},
})
}
payload := GChatPayload{
Cards: []GChatCards{
{
Header: GChatHeader{
Title: "Flagger",
SubTitle: fmt.Sprintf("%s.%s", workload, namespace),
ImageUrl: "https://flagger.app/favicon.png",
},
Sections: facts,
},
},
}
err := postMessage(s.URL, s.ProxyURL, payload)
if err != nil {
return fmt.Errorf("postMessage failed: %w", err)
}
return nil
}