## Issue Closes #47290 Also implements the "Cap free-text `maxLength` to the backend column length" pattern established in [#49041 (patterns.md thread)](https://github.com/fleetdm/fleet/pull/49041/files#r3572648691). ## Description Fleet name inputs had no `maxLength` cap and no service-layer length check, so a name >255 chars failed with a raw MySQL `Data too long` error, and several UI surfaces didn't handle long names gracefully. This PR fixes all four manifestations called out in the bug, plus a related label-overflow case on the host details page, and hardens adjacent name inputs across the app. **Frontend fixes for #47290:** - Create/Rename fleet name inputs now cap at 255 characters (matches `teams.name varchar(255)`). - Fleets table Name column uses `LinkCell` with `tooltipTruncate` + `className="w400"` so long names truncate with an ellipsis and full-name tooltip instead of overflowing across the Hosts/Users columns. - Fleet-detail page header (`.team-details__team-header`): h1 gets `overflow: hidden; text-overflow: ellipsis; white-space: nowrap;`, `__team-details` gets `min-width: 0; flex: 1`, and `.action-buttons` gets `flex-shrink: 0` + `white-space: nowrap` on buttons so *Manage enroll secrets / Rename / Delete* no longer wrap to a second line when the fleet name is long. - Manage enroll secrets modal body — `__description` gets `overflow-wrap: anywhere; min-width: 0` so a long `<b>{fleet name}</b>` wraps within the modal instead of spilling out the right edge. **Backend fixes for #47290:** - New `fleet.MaxTeamNameLength = 255` constant. - `NewTeam`, `ModifyTeam`, and `ApplyTeamSpecs` now return `fleet.NewInvalidArgumentError("name", "may not exceed 255 characters")` instead of surfacing a raw `Data too long` MySQL error. Covers UI, API, and GitOps entry points. **Broader consistency pass (per [#49041 thread](https://github.com/fleetdm/fleet/pull/49041/files#r3572648691)):** - New shared `MAX_ENTITY_CHAR_LENGTH = 255` constant in `frontend/utilities/constants.tsx`. - Refactored 8 existing files that had ad-hoc `NAME_MAX_LENGTH = 255` / `MAX_LABEL_NAME_LENGTH = 255` locals to use it. - Slotted it into 16 additional `InputField` name/description inputs that were missing a cap (API user, custom variable, certificate, label name + description, pack name + description, and all 5 CA forms — CustomEST, CustomSCEP, Smallstep, Digicert, Hydrant). - Pruned dead FE length validators that can no longer fire now that the DOM cap enforces the limit (certificate modal, custom variable modal, both label helpers, both category modals). Unusual/shorter caps (e.g. `varchar(64)`, custom business rules) still keep their inline validators — silent truncation is only appropriate for the common 255-char norm. **Bonus:** fixed the long-label overflow on the host details Labels card by capping the pill button `max-width` at 300px. ## Screenrecording https://github.com/user-attachments/assets/b917b72e-7437-4d0c-a1a1-c49b4b1c28ba https://github.com/user-attachments/assets/3a3efbb2-09d8-4f47-9fd4-f158b3453b9e https://github.com/user-attachments/assets/73e5e022-dc93-4381-82b3-be9549d050e6 Latest - max width 300px long label: <img width="1106" height="262" alt="Screenshot 2026-07-23 at 11 29 24 AM" src="https://github.com/user-attachments/assets/741fddbd-f78d-4578-a025-bddf64a81c25" /> ## Testing - [x] Added/updated automated tests - [x] QA'd all new/changed functionality manually Test coverage: - `CreateFleetModal.tests.tsx`, `RenameFleetModal.tests.tsx` — new case per file asserting the name input's `maxLength === 255`. - `AddCertificateModal.tests.tsx`, `Variables.tests.tsx` — the existing "shows too-long error when pasting 256 chars" tests are now unreachable via the DOM cap; converted to `maxLength === 255` assertions. - `ee/server/service/teams_test.go` — `TestNewTeamNameValidation`, `TestModifyTeamNameValidation`, and `TestApplyTeamSpecsNameValidation` each get two new cases (accepts at the limit, rejects one over with the expected error message). <!-- This is an auto-generated comment: release notes by coderabbit.ai --> ## Summary by CodeRabbit * **Bug Fixes** * Limited fleet, team, and other user-entered names and descriptions to 255 characters. * Replaced database errors for oversized names with clear validation messages. * Prevented long fleet and label names from overflowing tables, headers, modals, and host details. * Improved modal and dropdown layouts for long text. * **Tests** * Added coverage for character limits, boundary values, and multibyte names. <!-- end of auto-generated comment: release notes by coderabbit.ai -->
News · Report a bug · Docs · Why open source? · Art
Open-source platform for IT and security teams with thousands of computers. Designed for APIs, GitOps, webhooks, YAML, and humans.
What's it for?
Fleet gives you a single system to secure and maintain all your computing devices over the air. You can do MDM, patch stuff, deploy software, and verify anything, all from one place, across every OS your organization uses.
Fleet works directly with data and events from the native operating system, down to the bare metal. Strong diagnostics let you investigate errors on end-user devices and collect accurate audit evidence in minutes.
Get started
You can try Fleet out for yourself, or grab time with one of the maintainers to chat.
Is it any good?
Fleet is used in production by IT and security teams managing thousands of devices. Many deployments support tens of thousands of hosts, and a few large organizations manage 400,000 or more.
Supported platforms
- Linux (all distros)
- macOS
- Windows
- Chromebooks
- iOS and Android (BYOD or corporate-owned)
- Amazon Web Services (AWS)
- Google Cloud (GCP)
- Azure (Microsoft cloud)
- Data centers
- Containers (kube, etc)
- Linux-based IoT devices
Infrastructure as code
Manage your fleet with GitOps, or use the GUI, REST API, webhook events, and the fleetctl command-line tool.
Linux support
First-class support for all major distros. Linux gets the same attention and visibility as macOS and Windows.
Visibility and compliance
Fleet can report on hundreds of attributes across your devices and ships with CIS benchmarks for macOS and Windows and comprehensive operating system, hardware, and software data. Check out the table reference documentation to see what's available.
Open by design
Fleet is open source and transparent about what it can and can't see. End users can verify exactly how the agent works and what data their company collects. Fleet collects only the data needed to manage and secure devices, not private activity like keystrokes, emails, or webcams.
Good neighbors
Ready-to-use, enterprise-friendly integrations exist for Snowflake, Splunk, GitHub Actions, Vanta, Elastic Jira, Zendesk, and more. Fleet also works with tools such as Munki, Chef, Puppet, Ansible, CrowdStrike, and SentinelOne.
Lighter than air
Fleet is lightweight and modular. You can use it for MDM without using it for security, and vice versa. You can turn off features you are not using.
Free as in free
The free version of Fleet will always be free. Fleet is independently backed and actively maintained with the help of many amazing contributors.
Longevity
The company behind Fleet is founded (and majority-owned) by true believers in open source. The company's business model is influenced by GitLab (NYSE: GTLB), with great investors, happy customers, and the capacity to become profitable at any time.
Fleet Device Management's company handbook is public and open source. You can read about the history of Fleet and our commitment to improving the product.
Chat
The Fleet community is full of kind and helpful people. Whether or not you are a paying customer, if you need help, just reach out.
Contributing
Contributions are welcome, whether you answer questions on Slack / GitHub / LinkedIn, improve the documentation or website, write a tutorial, give a talk at a conference or local meetup, give an interview on a podcast, troubleshoot reported issues, or submit a patch. The Fleet code of conduct is on GitHub.
License
The free version of Fleet is available under the MIT license. The commercial license is also designed to allow contributions to paid features for users whose employment agreements allow them to contribute to open source projects. (See LICENSE.md for details.)
Fleet is built on osquery, nanoMDM, Nudge, and swiftDialog.