Victor Lyuboslavsky
2ddc2ae90a
<!-- Add the related story/sub-task/bug number, like Resolves #123, or remove if NA --> **Related issue:** Resolves #43034 ## Before (correlated subqueries): The old query scans the policies table and for each policy row, MySQL executes up to 3 separate subqueries against policy_labels + label_membership: ```sql -- For EACH policy row p: -- Subquery 1: Does this policy have any include labels? NOT EXISTS ( SELECT 1 FROM policy_labels pl WHERE pl.policy_id = p.id AND pl.exclude = 0 ) -- Subquery 2: Is the host in at least one include label? OR EXISTS ( SELECT 1 FROM policy_labels pl INNER JOIN label_membership lm ON (lm.host_id = ? AND lm.label_id = pl.label_id) WHERE pl.policy_id = p.id AND pl.exclude = 0 ) -- Subquery 3: Is the host in any exclude label? AND NOT EXISTS ( SELECT 1 FROM policy_labels pl INNER JOIN label_membership lm ON (lm.host_id = ? AND lm.label_id = pl.label_id) WHERE pl.policy_id = p.id AND pl.exclude = 1 ) ``` With 200 policies, MySQL executes up to 600 subquery probes into policy_labels and label_membership. ## After (single aggregated LEFT JOIN): The new query first builds one aggregated result set from policy_labels + label_membership for this host, grouped by policy_id, then joins it once: ```sql LEFT JOIN ( SELECT pl.policy_id, MAX(CASE WHEN pl.exclude = 0 THEN 1 ELSE 0 END) AS has_include_labels, MAX(CASE WHEN pl.exclude = 0 AND lm.host_id IS NOT NULL THEN 1 ELSE 0 END) AS host_in_include, MAX(CASE WHEN pl.exclude = 1 AND lm.host_id IS NOT NULL THEN 1 ELSE 0 END) AS host_in_exclude FROM policy_labels pl LEFT JOIN label_membership lm ON lm.label_id = pl.label_id AND lm.host_id = ? GROUP BY pl.policy_id ) pl_agg ON pl_agg.policy_id = p.id ``` The subquery scans policy_labels once, LEFT JOINs to label_membership for the specific host, and aggregates per policy. Each policy gets three booleans: - has_include_labels: 1 if any policy_labels row with exclude=0 exists - host_in_include: 1 if any include label row matched a label_membership row for this host - host_in_exclude: 1 if any exclude label row matched a label_membership row for this host Then the WHERE clause uses these: ```sql (COALESCE(pl_agg.has_include_labels, 0) = 0 OR pl_agg.host_in_include = 1) AND COALESCE(pl_agg.host_in_exclude, 0) = 0 ``` The COALESCE handles policies with no policy_labels rows at all (the LEFT JOIN produces NULL). # Checklist for submitter If some of the following don't apply, delete the relevant line. - [x] Changes file added for user-visible changes in `changes/`, `orbit/changes/` or `ee/fleetd-chrome/changes`. ## Testing - [x] QA'd all new/changed functionality manually <!-- This is an auto-generated comment: release notes by coderabbit.ai --> ## Summary by CodeRabbit ## Release Notes * **Refactor** * Optimized database query efficiency for policy operations, delivering approximately 77% faster query execution at scale while improving support for label-based policy scoping. <!-- end of auto-generated comment: release notes by coderabbit.ai -->
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Open-source platform for IT and security teams with thousands of computers. Designed for APIs, GitOps, webhooks, YAML, and humans.
What's it for?
Organizations like Fastly and Gusto use Fleet for vulnerability reporting, detection engineering, device management (MDM), device health monitoring, posture-based access control, managing unused software licenses, and more.
Explore data
To see what kind of data you can use Fleet to gather, check out the table reference documentation.
Out-of-the-box policies
Fleet includes out-of-the box support for all CIS benchmarks for macOS and Windows, as well as many simpler queries.
Take as much or as little as you need for your organization.
Supported platforms
Here are the platforms Fleet currently supports:
- Linux (all distros)
- macOS
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- Azure (Microsoft cloud)
- Data centers
- Containers (kube, etc)
- Linux-based IoT devices
Lighter than air
Fleet is lightweight and modular. You can use it for security without using it for MDM, and vice versa. You can turn off features you are not using.
Openness
Fleet is dedicated to flexibility, accessibility, and clarity. We think everyone can contribute and that tools should be as easy as possible for everyone to understand.
Good neighbors
Fleet has no ambition to replace all of your other tools. (Though it might replace some, if you want it to.) Ready-to-use, enterprise-friendly integrations exist for Snowflake, Splunk, GitHub Actions, Vanta, Elastic Jira, Zendesk, and more.
Fleet plays well with Munki, Chef, Puppet, and Ansible, as well as with security tools like Crowdstrike and SentinelOne. For example, you can use the free version of Fleet to quickly report on what hosts are actually running your EDR agent.
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.
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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.
In keeping with Fleet's value of openness, Fleet Device Management's company handbook is public and open source. You can read about the history of Fleet and osquery and our commitment to improving the product.
Is it any good?
Fleet is used in production by IT and security teams with thousands of laptops and servers. Many deployments support tens of thousands of hosts, and a few large organizations manage deployments as large as 400,000+ hosts.
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The Fleet community is full of kind and helpful people. Whether or not you are a paying customer, if you need help, just ask.
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The landscape of cybersecurity and IT is too complex. Let's open it up.
Contributions are welcome, whether you answer questions on Slack / GitHub / StackOverflow / LinkedIn / Twitter, 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.
What's next?
To see what Fleet can do, head over to fleetdm.com and try it out for yourself, grab time with one of the maintainers to discuss, or visit the docs and roll it out to your organization.
Production deployment
Fleet is simple enough to spin up for yourself. Or you can have us host it for you. Premium features are available either way.
Documentation
Complete documentation for Fleet can be found at https://fleetdm.com/docs.
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.