{"record":{"id":"d5626b01a181ea0a","repo":"kubernetes/kops","slug":"rendering-s3-file-v","errorCode":null,"errorMessage":"rendering S3 file: %v","messagePattern":"rendering S3 file: (.+?)","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"util/pkg/vfs/memfs.go","lineNumber":283,"sourceCode":"\t\tProvider:           terraformWriter.LiteralTokens(\"azurerm\", \"files\"),\n\t}\n\treturn w.RenderResource(\"azurerm_storage_blob\", name, tf)\n}\n\nfunc (p *MemFSPath) renderTerraformS3(w *terraformWriter.TerraformWriter, name string, data io.Reader, acl ACL) error {\n\tbytes, err := io.ReadAll(data)\n\tif err != nil {\n\t\treturn fmt.Errorf(\"reading data: %v\", err)\n\t}\n\n\ttfProviderArguments := map[string]string{\n\t\t\"region\": \"us-test-1\",\n\t}\n\tw.EnsureTerraformProvider(\"aws\", tfProviderArguments)\n\n\tcontent, err := w.AddFileBytes(\"aws_s3_object\", name, \"content\", bytes, false)\n\tif err != nil {\n\t\treturn fmt.Errorf(\"rendering S3 file: %v\", err)\n\t}\n\n\tvar requestAcl *string\n\tif acl != nil {\n\t\ts3Acl, ok := acl.(*S3Acl)\n\t\tif !ok {\n\t\t\treturn fmt.Errorf(\"write to %s with ACL of unexpected type %T\", p, acl)\n\t\t}\n\t\tif s3Acl != nil && s3Acl.RequestACL != nil {\n\t\t\taclVal := string(*s3Acl.RequestACL)\n\t\t\trequestAcl = &aclVal\n\t\t}\n\t}\n\n\ttf := &terraformMemFSFile{\n\t\tBucket:   \"testingBucket\",\n\t\tKey:      p.location,\n\t\tContent:  content,","sourceCodeStart":265,"sourceCodeEnd":301,"githubUrl":"https://github.com/kubernetes/kops/blob/4c8573c808a73d578c5eadc86d410646ea0b0d73/util/pkg/vfs/memfs.go#L265-L301","documentation":"Returned by MemFSPath.renderTerraformS3 (used in tests with a fake S3 backend) when the TerraformWriter rejects the embedded file content — typically a name collision in AddFileBytes or the recorded content hash already existing under a different name. The data itself was read successfully; the failure is in the writer/bookkeeping step.","triggerScenarios":"RenderTerraform -> renderTerraformS3 where w.AddFileBytes fails — e.g. duplicate resource names for aws_s3_object, or internal writer errors.","commonSituations":"Terraform-output tests for AWS mock clusters where object names collide, or a writer that was already populated by a prior render of the same objects.","solutions":["Read the wrapped error; if it is a duplicate-name error, derive unique resource names from the path","Use a fresh TerraformWriter for each full render pass","Verify the name argument passed to RenderTerraform matches kOps' expected naming scheme"],"exampleFix":"// before\ncontent, err := w.AddFileBytes(\"aws_s3_object\", name, \"content\", bytes, false)\n// after\nif err != nil {\n    return fmt.Errorf(\"rendering S3 file %q: %w\", name, err) // surface which name failed\n}","handlingStrategy":"validation","validationCode":"if name == \"\" { return errors.New(\"empty terraform resource name\") }","typeGuard":"null","tryCatchPattern":"if err := p.RenderTerraform(w, name, data, acl); err != nil {\n    if strings.Contains(err.Error(), \"rendering S3 file\") {\n        klog.Errorf(\"s3 object render failed for %s: %v\", name, err)\n    }\n    return err\n}","preventionTips":["Use unique aws_s3_object names per path","Create a new TerraformWriter for each full render","Follow kops' canonical resource naming scheme"],"tags":["vfs","memfs","terraform","s3","aws"],"backgroundTag":"terraform-render-failed","analyzedSha":"4c8573c808a73d578c5eadc86d410646ea0b0d73","analyzedAt":"2026-09-05T04:13:19.212Z","contentChangedAt":"2026-09-05T04:13:19.212Z","schemaVersion":2},"datasetVersion":"2026-09-12T12:17:11.808Z"}