[Plugin] Pass down ctx and use it (#2626)

* Pass down cancellable context and update http plugin

* Use context where we can

cmd/notification-http/main.go

@@ -58,13 +58,12 @@ func (s *HTTPPlugin) Notify(ctx context.Context, notification *protobufs.Notific
 	if err != nil {
 		return nil, err
 	}
-
 	for headerName, headerValue := range cfg.Headers {
 		logger.Debug(fmt.Sprintf("adding header %s: %s", headerName, headerValue))
 		request.Header.Add(headerName, headerValue)
 	}
 	logger.Debug(fmt.Sprintf("making HTTP %s call to %s with body %s", cfg.Method, cfg.URL, notification.Text))
-	resp, err := client.Do(request)
+	resp, err := client.Do(request.WithContext(ctx))
 	if err != nil {
 		logger.Error(fmt.Sprintf("Failed to make HTTP request : %s", err))
 		return nil, err

cmd/notification-sentinel/main.go

@@ -90,7 +90,7 @@ func (s *SentinelPlugin) Notify(ctx context.Context, notification *protobufs.Not
 	req.Header.Set("x-ms-date", now)
 
 	client := &http.Client{}
-	resp, err := client.Do(req)
+	resp, err := client.Do(req.WithContext(ctx))
 	if err != nil {
 		logger.Error("failed to send request", "error", err)
 		return &protobufs.Empty{}, err

cmd/notification-slack/main.go

@@ -38,10 +38,9 @@ func (n *Notify) Notify(ctx context.Context, notification *protobufs.Notificatio
 	if cfg.LogLevel != nil && *cfg.LogLevel != "" {
 		logger.SetLevel(hclog.LevelFromString(*cfg.LogLevel))
 	}
-
 	logger.Info(fmt.Sprintf("found notify signal for %s config", notification.Name))
 	logger.Debug(fmt.Sprintf("posting to %s webhook, message %s", cfg.Webhook, notification.Text))
-	err := slack.PostWebhook(n.ConfigByName[notification.Name].Webhook, &slack.WebhookMessage{
+	err := slack.PostWebhookContext(ctx, n.ConfigByName[notification.Name].Webhook, &slack.WebhookMessage{
 		Text: notification.Text,
 	})
 	if err != nil {

cmd/notification-splunk/main.go

@@ -65,7 +65,7 @@ func (s *Splunk) Notify(ctx context.Context, notification *protobufs.Notificatio
 
 	req.Header.Add("Authorization", fmt.Sprintf("Splunk %s", cfg.Token))
 	logger.Debug(fmt.Sprintf("posting event %s to %s", string(data), req.URL))
-	resp, err := s.Client.Do(req)
+	resp, err := s.Client.Do(req.WithContext(ctx))
 	if err != nil {
 		return &protobufs.Empty{}, err
 	}

pkg/csplugin/notifier.go

@@ -26,7 +26,7 @@ func (m *GRPCClient) Notify(ctx context.Context, notification *protobufs.Notific
 	done := make(chan error)
 	go func() {
 		_, err := m.client.Notify(
-			context.Background(), &protobufs.Notification{Text: notification.Text, Name: notification.Name},
+			ctx, &protobufs.Notification{Text: notification.Text, Name: notification.Name},
 		)
 		done <- err
 	}()