feat: TLS_INSECURE_SKIP_VERIFY env

controller/model_sync.go

@@ -99,6 +99,9 @@ func newHTTPClient() *http.Client {
 		ExpectContinueTimeout: 1 * time.Second,
 		ResponseHeaderTimeout: time.Duration(timeoutSec) * time.Second,
 	}
+	if common.TLSInsecureSkipVerify {
+		transport.TLSClientConfig = common.InsecureTLSConfig
+	}
 	transport.DialContext = func(ctx context.Context, network, addr string) (net.Conn, error) {
 		host, _, err := net.SplitHostPort(addr)
 		if err != nil {
@@ -115,7 +118,17 @@ func newHTTPClient() *http.Client {
 	return &http.Client{Transport: transport}
 }
 
-var httpClient = newHTTPClient()
+var (
+	httpClientOnce sync.Once
+	httpClient     *http.Client
+)
+
+func getHTTPClient() *http.Client {
+	httpClientOnce.Do(func() {
+		httpClient = newHTTPClient()
+	})
+	return httpClient
+}
 
 func fetchJSON[T any](ctx context.Context, url string, out *upstreamEnvelope[T]) error {
 	var lastErr error
@@ -138,7 +151,7 @@ func fetchJSON[T any](ctx context.Context, url string, out *upstreamEnvelope[T])
 		}
 		cacheMutex.RUnlock()
 
-		resp, err := httpClient.Do(req)
+		resp, err := getHTTPClient().Do(req)
 		if err != nil {
 			lastErr = err
 			// backoff with jitter