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optimize cgroups settings for node reserved (#9209)

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* optimize cgroups settings for node reserved

* fix

* set cgroup slice for multi container engine

* set cgroup slice for crio

* add reserved cgroups variables to sample files

* Compatible with cgroup path for different container managers

* add cgroups doc

* fix markdown
This commit is contained in:
Shelming.Song
2022-12-31 00:05:30 +08:00
committed by GitHub
parent 744c81d451
commit 1c4db6132d
9 changed files with 147 additions and 4 deletions
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18
roles/kubernetes/node/templates/kubelet.service.j2
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@@ -10,6 +10,24 @@ Wants={{ container_manager }}.service
[Service]
EnvironmentFile=-{{ kube_config_dir }}/kubelet.env
{% if system_reserved|bool %}
ExecStartPre=/bin/mkdir -p /sys/fs/cgroup/cpu/{{ system_reserved_cgroups_for_service_slice }}
ExecStartPre=/bin/mkdir -p /sys/fs/cgroup/cpuacct/{{ system_reserved_cgroups_for_service_slice }}
ExecStartPre=/bin/mkdir -p /sys/fs/cgroup/cpuset/{{ system_reserved_cgroups_for_service_slice }}
ExecStartPre=/bin/mkdir -p /sys/fs/cgroup/hugetlb/{{ system_reserved_cgroups_for_service_slice }}
ExecStartPre=/bin/mkdir -p /sys/fs/cgroup/memory/{{ system_reserved_cgroups_for_service_slice }}
ExecStartPre=/bin/mkdir -p /sys/fs/cgroup/pids/{{ system_reserved_cgroups_for_service_slice }}
ExecStartPre=/bin/mkdir -p /sys/fs/cgroup/systemd/{{ system_reserved_cgroups_for_service_slice }}
{% endif %}
{% if kube_reserved|bool %}
ExecStartPre=/bin/mkdir -p /sys/fs/cgroup/cpu/{{ kube_reserved_cgroups_for_service_slice }}
ExecStartPre=/bin/mkdir -p /sys/fs/cgroup/cpuacct/{{ kube_reserved_cgroups_for_service_slice }}
ExecStartPre=/bin/mkdir -p /sys/fs/cgroup/cpuset/{{ kube_reserved_cgroups_for_service_slice }}
ExecStartPre=/bin/mkdir -p /sys/fs/cgroup/hugetlb/{{ kube_reserved_cgroups_for_service_slice }}
ExecStartPre=/bin/mkdir -p /sys/fs/cgroup/memory/{{ kube_reserved_cgroups_for_service_slice }}
ExecStartPre=/bin/mkdir -p /sys/fs/cgroup/pids/{{ kube_reserved_cgroups_for_service_slice }}
ExecStartPre=/bin/mkdir -p /sys/fs/cgroup/systemd/{{ kube_reserved_cgroups_for_service_slice }}
{% endif %}
ExecStart={{ bin_dir }}/kubelet \
$KUBE_LOGTOSTDERR \
$KUBE_LOG_LEVEL \