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feat(alerting): Add group-specific WebHook URL for Google Chat (#272)

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Bo-Yi Wu 2022-05-08 02:34:21 +08:00 committed by GitHub
parent a9fc876173
commit dde930bed7
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3 changed files with 144 additions and 8 deletions
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16
README.md
View file

@ -442,12 +442,16 @@ endpoints:
**NOTE:** Some mail servers are painfully slow.
#### Configuring Google Chat alerts
| Parameter | Description | Default |
|:------------------------------------|:--------------------------------------------------------------------------------------------|:--------------|
| `alerting.googlechat` | Configuration for alerts of type `googlechat` | `{}` |
| `alerting.googlechat.webhook-url` | Google Chat Webhook URL | Required `""` |
| `alerting.googlechat.client` | Client configuration. <br />See [Client configuration](#client-configuration). | `{}` |
| `alerting.googlechat.default-alert` | Default alert configuration. <br />See [Setting a default alert](#setting-a-default-alert). | N/A |
| Parameter | Description | Default |
|:--------------------------------------------- |:------------------------------------------------------------------------------------------- |:------------- |
| `alerting.googlechat` | Configuration for alerts of type `googlechat` | `{}` |
| `alerting.googlechat.webhook-url` | Google Chat Webhook URL | Required `""` |
| `alerting.googlechat.client` | Client configuration. <br />See [Client configuration](#client-configuration). | `{}` |
| `alerting.googlechat.default-alert` | Default alert configuration. <br />See [Setting a default alert](#setting-a-default-alert). | N/A |
| `alerting.googlechat.overrides` | List of overrides that may be prioritized over the default configuration | `[]` |
| `alerting.googlechat.overrides[].group` | Endpoint group for which the configuration will be overridden by this configuration | `""` |
| `alerting.googlechat.overrides[].webhook-url` | Teams Webhook URL | `""` |
```yaml
alerting:

34
alerting/provider/googlechat/googlechat.go
View file

@ -20,6 +20,15 @@ type AlertProvider struct {
// DefaultAlert is the default alert configuration to use for endpoints with an alert of the appropriate type
DefaultAlert *alert.Alert `yaml:"default-alert,omitempty"`
// Overrides is a list of Override that may be prioritized over the default configuration
Overrides []Override `yaml:"overrides,omitempty"`
}
// Override is a case under which the default integration is overridden
type Override struct {
Group string `yaml:"group"`
WebhookURL string `yaml:"webhook-url"`
}
// IsValid returns whether the provider's configuration is valid
@ -27,13 +36,24 @@ func (provider *AlertProvider) IsValid() bool {
if provider.ClientConfig == nil {
provider.ClientConfig = client.GetDefaultConfig()
}
registeredGroups := make(map[string]bool)
if provider.Overrides != nil {
for _, override := range provider.Overrides {
if isAlreadyRegistered := registeredGroups[override.Group]; isAlreadyRegistered || override.Group == "" || len(override.WebhookURL) == 0 {
return false
}
registeredGroups[override.Group] = true
}
}
return len(provider.WebhookURL) > 0
}
// Send an alert using the provider
func (provider *AlertProvider) Send(endpoint *core.Endpoint, alert *alert.Alert, result *core.Result, resolved bool) error {
buffer := bytes.NewBuffer([]byte(provider.buildRequestBody(endpoint, alert, result, resolved)))
request, err := http.NewRequest(http.MethodPost, provider.WebhookURL, buffer)
request, err := http.NewRequest(http.MethodPost, provider.getWebhookURLForGroup(endpoint.Group), buffer)
if err != nil {
return err
}
@ -118,6 +138,18 @@ func (provider *AlertProvider) buildRequestBody(endpoint *core.Endpoint, alert *
}`, endpoint.Name, endpoint.Group, message, description, results, endpoint.URL)
}
// getWebhookURLForGroup returns the appropriate Webhook URL integration to for a given group
func (provider *AlertProvider) getWebhookURLForGroup(group string) string {
if provider.Overrides != nil {
for _, override := range provider.Overrides {
if group == override.Group {
return override.WebhookURL
}
}
}
return provider.WebhookURL
}
// GetDefaultAlert returns the provider's default alert configuration
func (provider AlertProvider) GetDefaultAlert() *alert.Alert {
return provider.DefaultAlert

102
alerting/provider/googlechat/googlechat_test.go
View file

@ -11,7 +11,7 @@ import (
"github.com/TwiN/gatus/v3/test"
)
func TestAlertProvider_IsValid(t *testing.T) {
func TestAlertDefaultProvider_IsValid(t *testing.T) {
invalidProvider := AlertProvider{WebhookURL: ""}
if invalidProvider.IsValid() {
t.Error("provider shouldn't have been valid")
@ -22,6 +22,43 @@ func TestAlertProvider_IsValid(t *testing.T) {
}
}
func TestAlertProvider_IsValidWithOverride(t *testing.T) {
providerWithInvalidOverrideGroup := AlertProvider{
Overrides: []Override{
{
WebhookURL: "http://example.com",
Group: "",
},
},
}
if providerWithInvalidOverrideGroup.IsValid() {
t.Error("provider Group shouldn't have been valid")
}
providerWithInvalidOverrideTo := AlertProvider{
Overrides: []Override{
{
WebhookURL: "",
Group: "group",
},
},
}
if providerWithInvalidOverrideTo.IsValid() {
t.Error("provider integration key shouldn't have been valid")
}
providerWithValidOverride := AlertProvider{
WebhookURL: "http://example.com",
Overrides: []Override{
{
WebhookURL: "http://example.com",
Group: "group",
},
},
}
if !providerWithValidOverride.IsValid() {
t.Error("provider should've been valid")
}
}
func TestAlertProvider_Send(t *testing.T) {
defer client.InjectHTTPClient(nil)
firstDescription := "description-1"
@ -158,3 +195,66 @@ func TestAlertProvider_GetDefaultAlert(t *testing.T) {
t.Error("expected default alert to be nil")
}
}
func TestAlertProvider_getWebhookURLForGroup(t *testing.T) {
tests := []struct {
Name string
Provider AlertProvider
InputGroup string
ExpectedOutput string
}{
{
Name: "provider-no-override-specify-no-group-should-default",
Provider: AlertProvider{
WebhookURL: "http://example.com",
Overrides: nil,
},
InputGroup: "",
ExpectedOutput: "http://example.com",
},
{
Name: "provider-no-override-specify-group-should-default",
Provider: AlertProvider{
WebhookURL: "http://example.com",
Overrides: nil,
},
InputGroup: "group",
ExpectedOutput: "http://example.com",
},
{
Name: "provider-with-override-specify-no-group-should-default",
Provider: AlertProvider{
WebhookURL: "http://example.com",
Overrides: []Override{
{
Group: "group",
WebhookURL: "http://example01.com",
},
},
},
InputGroup: "",
ExpectedOutput: "http://example.com",
},
{
Name: "provider-with-override-specify-group-should-override",
Provider: AlertProvider{
WebhookURL: "http://example.com",
Overrides: []Override{
{
Group: "group",
WebhookURL: "http://example01.com",
},
},
},
InputGroup: "group",
ExpectedOutput: "http://example01.com",
},
}
for _, tt := range tests {
t.Run(tt.Name, func(t *testing.T) {
if got := tt.Provider.getWebhookURLForGroup(tt.InputGroup); got != tt.ExpectedOutput {
t.Errorf("AlertProvider.getToForGroup() = %v, want %v", got, tt.ExpectedOutput)
}
})
}
}