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fix(alerting): Support custom slack title (#1079)

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This commit is contained in:
mehdiMj
2025-09-21 03:51:46 +03:30
committed by GitHub
parent cd10b31ab5
commit e6576e9080
3 changed files with 38 additions and 17 deletions
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15
alerting/provider/slack/slack.go
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@@ -20,7 +20,8 @@ var (
)
type Config struct {
WebhookURL string `yaml:"webhook-url"` // Slack webhook URL
WebhookURL string `yaml:"webhook-url"` // Slack webhook URL
Title string `yaml:"title,omitempty"` // Title of the message that will be sent
}
func (cfg *Config) Validate() error {
@@ -34,6 +35,9 @@ func (cfg *Config) Merge(override *Config) {
if len(override.WebhookURL) > 0 {
cfg.WebhookURL = override.WebhookURL
}
if len(override.Title) > 0 {
cfg.Title = override.Title
}
}
// AlertProvider is the configuration necessary for sending an alert using Slack
@@ -73,7 +77,7 @@ func (provider *AlertProvider) Send(ep *endpoint.Endpoint, alert *alert.Alert, r
if err != nil {
return err
}
buffer := bytes.NewBuffer(provider.buildRequestBody(ep, alert, result, resolved))
buffer := bytes.NewBuffer(provider.buildRequestBody(cfg, ep, alert, result, resolved))
request, err := http.NewRequest(http.MethodPost, cfg.WebhookURL, buffer)
if err != nil {
return err
@@ -111,7 +115,7 @@ type Field struct {
}
// buildRequestBody builds the request body for the provider
func (provider *AlertProvider) buildRequestBody(ep *endpoint.Endpoint, alert *alert.Alert, result *endpoint.Result, resolved bool) []byte {
func (provider *AlertProvider) buildRequestBody(cfg *Config, ep *endpoint.Endpoint, alert *alert.Alert, result *endpoint.Result, resolved bool) []byte {
var message, color string
if resolved {
message = fmt.Sprintf("An alert for *%s* has been resolved after passing successfully %d time(s) in a row", ep.DisplayName(), alert.SuccessThreshold)
@@ -138,13 +142,16 @@ func (provider *AlertProvider) buildRequestBody(ep *endpoint.Endpoint, alert *al
Text: "",
Attachments: []Attachment{
{
Title: ":helmet_with_white_cross: Gatus",
Title: cfg.Title,
Text: message + description,
Short: false,
Color: color,
},
},
}
if len(body.Attachments[0].Title) == 0 {
body.Attachments[0].Title = ":helmet_with_white_cross: Gatus"
}
if len(formattedConditionResults) > 0 {
body.Attachments[0].Fields = append(body.Attachments[0].Fields, Field{
Title: "Condition results",