{"record":{"id":"ef2a52447bc6009f","repo":"kubernetes/kops","slug":"rendering-s3-file-v-ef2a52","errorCode":null,"errorMessage":"rendering S3 file: %v","messagePattern":"rendering S3 file: (.+?)","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"util/pkg/vfs/s3fs.go","lineNumber":760,"sourceCode":"\t\t\tKey:     p.Key(),\n\t\t\tContent: content,\n\t\t}\n\t\treturn w.RenderResource(\"scaleway_object\", name, tf)\n\n\tdefault:\n\t\tbucketDetails, err := p.getBucketDetails(ctx)\n\t\tif err != nil {\n\t\t\treturn err\n\t\t}\n\n\t\ttfProviderArguments := map[string]string{\n\t\t\t\"region\": bucketDetails.region,\n\t\t}\n\t\tw.EnsureTerraformProvider(\"aws\", tfProviderArguments)\n\n\t\tcontent, err := w.AddFileBytes(\"aws_s3_object\", name, \"content\", bytes, false)\n\t\tif err != nil {\n\t\t\treturn fmt.Errorf(\"rendering S3 file: %v\", err)\n\t\t}\n\n\t\tsse, _, err := p.getServerSideEncryption(ctx)\n\t\tif err != nil {\n\t\t\treturn err\n\t\t}\n\t\tsseVal := string(sse)\n\n\t\trequestACL, err := p.getRequestACL(acl)\n\t\tif err != nil {\n\t\t\treturn err\n\t\t}\n\t\tvar aclVal string\n\t\tif requestACL != nil {\n\t\t\taclVal = string(*requestACL)\n\t\t}\n\n\t\ttf := &terraformS3File{","sourceCodeStart":742,"sourceCodeEnd":778,"githubUrl":"https://github.com/kubernetes/kops/blob/4c8573c808a73d578c5eadc86d410646ea0b0d73/util/pkg/vfs/s3fs.go#L742-L778","documentation":"This error is returned by S3Path.RenderTerraform in util/pkg/vfs/s3fs.go when w.AddFileBytes(\"aws_s3_object\", ...) fails while rendering an S3 bucket object as a terraform resource (the default branch, i.e. AWS S3). AddFileBytes records the object bytes for the terraform output; a failure there means the terraform writer could not stage the file content. It is not an S3 API error — no AWS call has happened yet.","triggerScenarios":"RenderTerraform on an S3Path with the default (aws) scheme where AddFileBytes returns an error — typically when the terraform output target cannot be written or the writer state is invalid.","commonSituations":"`kops update cluster --target=terraform` against an AWS state store; read-only or missing terraform output directory; corrupted terraform writer context; unusual characters in the object name/path breaking the writer.","solutions":["Read the wrapped %v error for the true cause (usually local I/O, not S3)","Ensure the terraform output directory (--out) exists and is writable","Check disk space on the machine running kops","If S3-side settings are the concern, note SSE/ACL are validated after this step; this error is purely about staging content"],"exampleFix":"// before\ncontent, err := w.AddFileBytes(\"aws_s3_object\", name, \"content\", bytes, false)\nif err != nil {\n\treturn fmt.Errorf(\"rendering S3 file: %v\", err)\n}\n// after\n// ensure out dir is writable before rendering:\nif err := os.MkdirAll(outDir, 0o755); err != nil {\n\treturn fmt.Errorf(\"creating terraform output dir: %w\", err)\n}\ncontent, err := w.AddFileBytes(\"aws_s3_object\", name, \"content\", bytes, false)\nif err != nil {\n\treturn fmt.Errorf(\"rendering S3 file: %w\", err)\n}","handlingStrategy":"validation","validationCode":"// ensure terraform output target is writable before calling RenderTerraform\nif err := os.MkdirAll(outDir, 0o755); err != nil {\n\tlog.Fatalf(\"cannot prepare terraform out dir: %v\", err)\n}","typeGuard":null,"tryCatchPattern":"if err := p.RenderTerraform(w, name, data, acl); err != nil {\n\tif strings.Contains(err.Error(), \"rendering S3 file:\") {\n\t\t// local writer problem: inspect wrapped cause and out dir\n\t\tlog.Printf(\"S3 terraform staging failed: %+v\", err)\n\t}\n\treturn err\n}","preventionTips":["Run kops with a writable --out directory on a machine with free disk space","Verify the bucket/state store scheme resolves to the intended provider branch","Keep kops and terraform writer versions in sync","Log wrapped errors with %+v to expose the root cause"],"tags":["terraform","s3","aws","vfs"],"backgroundTag":"terraform-render-failed","analyzedSha":"4c8573c808a73d578c5eadc86d410646ea0b0d73","analyzedAt":"2026-09-05T04:13:19.212Z","contentChangedAt":"2026-09-05T04:13:19.212Z","schemaVersion":2},"datasetVersion":"2026-09-12T07:17:12.445Z"}