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41 lines
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41 lines
2.0 KiB
Plaintext
---
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layout: docs
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page_title: Task Drivers
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description: Task Drivers are used to integrate with the host OS to run tasks in Nomad.
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---
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# Task Drivers
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Task drivers are used by Nomad clients to execute a task and provide resource
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isolation. By having extensible task drivers, Nomad has the flexibility to
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support a broad set of workloads across all major operating systems.
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Task drivers are pluggable. This gives users the flexibility to introduce their
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own drivers without having to recompile Nomad. You can view the [plugin block][plugin]
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documentation for examples on how to use the `plugin` block in Nomad's client configuration.
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Note that we have introduced new syntax when specifying driver options in the client
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configuration (see [docker][docker_plugin] for an example). Keep in mind that even though
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all built-in drivers are now plugins, Nomad remains a single binary and maintains
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backwards compatibility except with the `lxc` driver.
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The list of supported task drivers is provided on the left of this page. Each
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task driver documents the configuration available in a [job
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specification](/nomad/docs/job-specification), the environments it can be
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used in, and the resource isolation mechanisms available.
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For details on authoring a task driver plugin, please refer to the [plugin
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authoring guide][plugin_guide].
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Task driver resource isolation is intended to provide a degree of separation of
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Nomad client CPU / memory / storage between tasks. Resource isolation
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effectiveness is dependent upon individual task driver implementations and
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underlying client operating systems. Task drivers do include various
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security-related controls, but the Nomad client to task interface should not be
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considered a security boundary. See the [access control guide][acl_guide] for
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more information on how to protect Nomad cluster operations.
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[plugin]: /nomad/docs/configuration/plugin
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[docker_plugin]: /nomad/docs/drivers/docker#client-requirements
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[plugin_guide]: /nomad/docs/concepts/plugins
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[acl_guide]: /nomad/tutorials/access-control
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