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Add an option to reserve resources for OS system daemons (#5007)

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koriukiv 2019-07-31 21:24:15 +03:00 committed by Kubernetes Prow Robot
parent 5337cff179
commit 54b1fe83f3
2 changed files with 20 additions and 1 deletions
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9
inventory/sample/group_vars/k8s-cluster/k8s-cluster.yml
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@ -191,6 +191,15 @@ podsecuritypolicy_enabled: false
# Acceptable options are 'pods', 'system-reserved', 'kube-reserved' and ''. Default is "".
# kubelet_enforce_node_allocatable: pods
## Optionally reserve resources for OS system daemons.
# system_reserved: true
## Uncomment to override default values
# system_memory_reserved: 512M
# system_cpu_reserved: 500m
## Reservation for master hosts
# system_master_memory_reserved: 256M
# system_master_cpu_reserved: 250m
# An alternative flexvolume plugin directory
# kubelet_flexvolumes_plugins_dir: /usr/libexec/kubernetes/kubelet-plugins/volume/exec

12
roles/kubernetes/node/templates/kubelet-config.v1beta1.yaml.j2
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@ -54,4 +54,14 @@ kubeReserved:
cpu: {{ kube_cpu_reserved }}
memory: {{ kube_memory_reserved|regex_replace('Mi', 'M') }}
{% endif %}
resolvConf: "{{ kube_resolv_conf }}"
{% if system_reserved is defined and system_reserved %}
systemReserved:
{% if is_kube_master|bool %}
cpu: {{ system_master_cpu_reserved|default('250m') }}
memory: {{ system_master_memory_reserved|default('256M')|regex_replace('Mi', 'M') }}
{% else %}
cpu: {{ system_cpu_reserved|default('500m') }}
memory: {{ system_memory_reserved|default('512M')|regex_replace('Mi', 'M') }}
{% endif %}
{% endif %}
resolvConf: "{{ kube_resolv_conf }}"