{"record":{"id":"c732afeb668483de","repo":"juanfont/headscale","slug":"s-failed-to-join-tailscale-client-s-w","errorCode":null,"errorMessage":"%s failed to join tailscale client (%s): %w","messagePattern":"(.+?) failed to join tailscale client \\((.+?)\\): %w","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"integration/tsic/tsic.go","lineNumber":724,"sourceCode":"\tif len(t.withTags) > 0 {\n\t\tcommand = append(\n\t\t\tcommand,\n\t\t\t\"--advertise-tags=\"+strings.Join(t.withTags, \",\"),\n\t\t)\n\t}\n\n\treturn command\n}\n\n// Login runs the login routine on the given Tailscale instance.\n// This login mechanism uses the authorised key for authentication.\nfunc (t *TailscaleInContainer) Login(\n\tloginServer, authKey string,\n) error {\n\tcommand := t.buildLoginCommand(loginServer, authKey)\n\n\tif _, _, err := t.Execute(command, dockertestutil.ExecuteCommandTimeout(dockerExecuteTimeout)); err != nil { //nolint:noinlineerr\n\t\treturn fmt.Errorf(\n\t\t\t\"%s failed to join tailscale client (%s): %w\",\n\t\t\tt.hostname,\n\t\t\tstrings.Join(command, \" \"),\n\t\t\terr,\n\t\t)\n\t}\n\n\treturn nil\n}\n\n// LoginWithURL runs the login routine on the given Tailscale instance.\n// This login mechanism uses web + command line flow for authentication.\nfunc (t *TailscaleInContainer) LoginWithURL(\n\tloginServer string,\n) (*url.URL, error) {\n\tcommand := t.buildLoginCommand(loginServer, \"\")\n\n\tstdout, stderr, err := t.Execute(command)","sourceCodeStart":706,"sourceCodeEnd":742,"githubUrl":"https://github.com/juanfont/headscale/blob/565fd254d06c4c7f9a8cad1714a43445c79ba420/integration/tsic/tsic.go#L706-L742","documentation":"Error \"%s failed to join tailscale client (%s): %w\" thrown in juanfont/headscale.","triggerScenarios":"Thrown at integration/tsic/tsic.go:724 when the library encounters an invalid state.","commonSituations":"'tailscale login' with the auth key failed inside the container. Verify the pre-auth key is valid, unexpired, and belongs to an existing user.","solutions":["Inspect the wrapped error for the underlying cause and correct the failing condition (failed to join tailscale client ()); retry the operation after fixing the input, configuration, or environment."],"exampleFix":"Inspect the wrapped error for the underlying cause and correct the failing condition (failed to join tailscale client ()); retry the operation after fixing the input, configuration, or environment.","handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"565fd254d06c4c7f9a8cad1714a43445c79ba420","analyzedAt":"2026-08-15T13:12:30.133Z","schemaVersion":2},"datasetVersion":"2026-08-15T17:31:12.345Z"}