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feat: Trigger immediate reconciliation when self-monitor alert state …
…changes (#912)
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Stanislav Khalash
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Mar 27, 2024
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,67 @@ | ||
| package webhook | ||
|
|
||
| import ( | ||
| "io" | ||
| "net/http" | ||
|
|
||
| "github.com/go-logr/logr" | ||
| "sigs.k8s.io/controller-runtime/pkg/event" | ||
| logf "sigs.k8s.io/controller-runtime/pkg/log" | ||
| ) | ||
|
|
||
| type Handler struct { | ||
| subscribers []chan<- event.GenericEvent | ||
| logger logr.Logger | ||
| } | ||
|
|
||
| type Option = func(*Handler) | ||
|
|
||
| func WithLogger(logger logr.Logger) Option { | ||
| return func(h *Handler) { | ||
| h.logger = logger | ||
| } | ||
| } | ||
|
|
||
| func WithSubscriber(subscriber chan<- event.GenericEvent) Option { | ||
| return func(h *Handler) { | ||
| h.subscribers = append(h.subscribers, subscriber) | ||
| } | ||
| } | ||
|
|
||
| func NewHandler(opts ...Option) *Handler { | ||
| h := &Handler{ | ||
| logger: logr.New(logf.NullLogSink{}), | ||
| } | ||
|
|
||
| for _, opt := range opts { | ||
| opt(h) | ||
| } | ||
|
|
||
| return h | ||
| } | ||
|
|
||
| func (h *Handler) ServeHTTP(w http.ResponseWriter, r *http.Request) { | ||
| if r.Method != http.MethodPost { | ||
| h.logger.Info("Invalid method", "method", r.Method) | ||
| w.WriteHeader(http.StatusMethodNotAllowed) | ||
| return | ||
| } | ||
|
|
||
| req, err := io.ReadAll(r.Body) | ||
| if err != nil { | ||
| h.logger.Error(err, "Failed to read request body") | ||
| w.WriteHeader(http.StatusInternalServerError) | ||
| return | ||
| } | ||
|
|
||
| defer r.Body.Close() | ||
|
|
||
| h.logger.V(1).Info("Webhook called. Notifying the subscribers.", | ||
| "request", string(req)) | ||
|
|
||
| for _, sub := range h.subscribers { | ||
| sub <- event.GenericEvent{} | ||
| } | ||
|
|
||
| w.WriteHeader(http.StatusOK) | ||
| } |
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