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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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27
inventory/sample/group_vars/k8s_cluster/k8s-cluster.yml
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@@ -261,9 +261,36 @@ podsecuritypolicy_enabled: false
# Acceptable options are 'pods', 'system-reserved', 'kube-reserved' and ''. Default is "".
# kubelet_enforce_node_allocatable: pods
## Set runtime and kubelet cgroups when using systemd as cgroup driver (default)
# kubelet_runtime_cgroups: "{{ kube_reserved_cgroups }}/{{ container_manager }}.service"
# kubelet_kubelet_cgroups: "{{ kube_reserved_cgroups }}/kubelet.service"
## Set runtime and kubelet cgroups when using cgroupfs as cgroup driver
# kubelet_runtime_cgroups_cgroupfs: "/system.slice/{{ container_manager }}.service"
# kubelet_kubelet_cgroups_cgroupfs: "/system.slice/kubelet.service"
# Optionally reserve this space for kube daemons.
# kube_reserved: true
## Uncomment to override default values
## The following two items need to be set when kube_reserved is true
# kube_reserved_cgroups_for_service_slice: kube.slice
# kube_reserved_cgroups: "/{{ kube_reserved_cgroups_for_service_slice }}"
# kube_memory_reserved: 256Mi
# kube_cpu_reserved: 100m
# kube_ephemeral_storage_reserved: 2Gi
# kube_pid_reserved: "1000"
# Reservation for master hosts
# kube_master_memory_reserved: 512Mi
# kube_master_cpu_reserved: 200m
# kube_master_ephemeral_storage_reserved: 2Gi
# kube_master_pid_reserved: "1000"
## Optionally reserve resources for OS system daemons.
# system_reserved: true
## Uncomment to override default values
## The following two items need to be set when system_reserved is true
# system_reserved_cgroups_for_service_slice: system.slice
# system_reserved_cgroups: "/{{ system_reserved_cgroups_for_service_slice }}"
# system_memory_reserved: 512Mi
# system_cpu_reserved: 500m
# system_ephemeral_storage_reserved: 2Gi