{"record":{"id":"2d39ab0824830668","repo":"cilium/cilium","slug":"error-providing-options-for-grpc-connection-w","errorCode":null,"errorMessage":"Error providing Options for GRPC connection: %w","messagePattern":"Error providing Options for GRPC connection: %w","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"pkg/xds/experimental/client/cell.go","lineNumber":114,"sourceCode":"\tin.JobGroup.Add(job.OneShot(\"xds-client-run\", func(ctx context.Context, _ cell.Health) error {\n\t\tlocalNode, err := in.LocalNodeStore.Get(context.TODO())\n\t\tif err != nil {\n\t\t\treturn fmt.Errorf(\"Failed to get LocalNodeStore: %w\", err)\n\t\t}\n\t\tzone := localNode.Labels[core_v1.LabelTopologyZone]\n\t\tin.Log.Info(\"Get local node\", logfields.Zone, zone)\n\t\tif zone == \"\" {\n\t\t\treturn fmt.Errorf(\"zone is nil\")\n\t\t}\n\t\tnodeID := localNode.Name\n\t\tif in.Config.NodeID != \"\" {\n\t\t\tnodeID = in.Config.NodeID\n\t\t}\n\n\t\tnode := in.NodeBuilder.Node(nodeID, zone)\n\t\tgOps, err := in.GRPCOptionsProvider.GRPCOptions(ctx)\n\t\tif err != nil {\n\t\t\treturn fmt.Errorf(\"Error providing Options for GRPC connection: %w\", err)\n\t\t}\n\t\tconn, err := grpc.NewClient(in.Config.ServerAddr, gOps...)\n\t\tif err != nil {\n\t\t\treturn fmt.Errorf(\"Failed to create grpc Client: %w\", err)\n\t\t}\n\t\tdefer conn.Close()\n\t\tin.Log.Info(\"Successfully run xDS client\")\n\t\treturn cl.Run(ctx, node, conn)\n\t},\n\t\tjob.WithRetry(3, &job.ExponentialBackoff{Min: 1 * time.Second, Max: 5 * time.Minute}),\n\t))\n}\n","sourceCodeStart":96,"sourceCodeEnd":127,"githubUrl":"https://github.com/cilium/cilium/blob/ac7b90affa4baf0642e6685319d56907b3a73a6d/pkg/xds/experimental/client/cell.go#L96-L127","documentation":"runXDSClient in pkg/xds/experimental/client/cell.go:114 wraps the error returned by GRPCOptionsProvider.GRPCOptions(ctx) when building the gRPC dial options for the xDS connection fails. The xDS client cannot create its gRPC connection without these options (TLS credentials, etc.), so the job fails and is retried.","triggerScenarios":"GRPCOptions(ctx) returns an error inside the 'xds-client-run' job: the TLS secret/certificate required for the gRPC connection cannot be read or parsed, the dial-options provider is misconfigured, or its backing dependencies (e.g. secret store) are not ready or error out.","commonSituations":"Missing or malformed xDS TLS certificates mounted into the agent; the secret (e.g. istio ca.crt/cert chain) not yet present at startup; wrong paths configured for the credentials provider; the provider implementation returning a validation error on bad config.","solutions":["Inspect the wrapped %w error from the GRPC options provider to identify the failing option (usually TLS cert/key/CA loading).","Ensure the TLS certificates/secret for the xDS server connection are mounted and valid (not expired, correct paths).","The job retries 3 times with exponential backoff (1s to 5m); fix the certificate/config issue and verify the retry succeeds.","If using plaintext xDS, make sure the options provider is configured accordingly rather than expecting TLS material."],"exampleFix":"// before: cert path wrong\ngrpcOptions:\n  tlsCert: /var/run/secrets/xdscerts/tls.crt   # file missing\n// after\ngrpcOptions:\n  tlsCert: /var/lib/cilium/xds/tls.crt         # correctly mounted secret","handlingStrategy":"validation","validationCode":"for _, p := range []string{certPath, keyPath, caPath} {\n    b, err := os.ReadFile(p)\n    if err != nil {\n        return fmt.Errorf(\"xDS TLS material %s unreadable: %w\", p, err)\n    }\n    if p == caPath || p == certPath {\n        if _, err := tls.X509KeyPair(cert, key); err != nil { /* validate parseability */ }\n    }\n}","typeGuard":null,"tryCatchPattern":"err := runXDSClient(ctx)\nif err != nil && strings.Contains(err.Error(), \"Error providing Options for GRPC connection\") {\n    var te *tls.CertificateRequestError\n    if errors.As(err, &te) {\n        log.Error(\"xDS TLS certificates invalid or missing; check mounted secret\", \"err\", err)\n    }\n    return err\n}","preventionTips":["Mount and validate xDS TLS secrets (cert/key/CA) before the agent starts.","Monitor certificate expiry and rotate before deadlines.","Keep gRPC option provider config (TLS paths, ALPN) consistent with the server's requirements.","Depend on the job's WithRetry(3) only for transient readiness, not for permanent config errors."],"tags":["xds","grpc","tls","configuration"],"backgroundTag":"grpc-tls-options-failed","analyzedSha":"ac7b90affa4baf0642e6685319d56907b3a73a6d","analyzedAt":"2026-08-31T18:27:15.868Z","schemaVersion":2},"datasetVersion":"2026-08-31T19:17:28.585Z"}