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- Pulled common content from multiple pages into new partials - Refactored install/index to be OS-based so I could add linux-distro-based instructions to install-consul-cni-plugins.mdx partial. The tab groups on the install/index page do match and change focus as expected. - Moved CNI overview-type content to networking/index - Refactored networking/cni to include install CNI plugins and configuration content (from install/index). - Moved CNI plugins explanation in bridge mode configuration section into bullet points. They had been #### headings, which aren't rendered in the R page TOC. I tried to simplify and format the bullet point content to be easier to scan. Ref: https://hashicorp.atlassian.net/browse/CE-661 Fixes: https://github.com/hashicorp/nomad/issues/23229 Fixes: https://github.com/hashicorp/nomad/issues/23583
23 lines
914 B
Plaintext
23 lines
914 B
Plaintext
On Linux, Nomad uses cgroups to control access to resources like CPU and memory.
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Nomad supports both [cgroups
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v2](https://www.kernel.org/doc/html/latest/admin-guide/cgroup-v2.html) and the
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legacy [cgroups
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v1](https://www.kernel.org/doc/html/latest/admin-guide/cgroup-v1/cgroups.html).
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When Nomad clients start, they determine the available cgroup controllers and
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include the attribute `os.cgroups.version` in their fingerprint.
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On cgroups v2, you can run the following command to verify that you have all
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required controllers.
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```shell-session
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$ cat /sys/fs/cgroup/cgroup.controllers
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cpuset cpu io memory pids
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```
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On legacy cgroups v1, this same list of required controllers appears as a series
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of sub-directories under the directory `/sys/fs/cgroup`.
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Refer to the [cgroup controller
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requirements](/nomad/docs/install/production/requirements#cgroup-controllers)
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for more details and to enable missing cgroups.
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