c07d60bc90
- Exclude kubelet CPU/RAM (kube-reserved) from cgroup. It decreases a chance of overcommitment - Add a possibility to modify Kubelet node-status-update-frequency - Add a posibility to configure node-monitor-grace-period, node-monitor-period, pod-eviction-timeout for Kubernetes controller manager - Add Kubernetes Relaibility Documentation with recomendations for various scenarios. Signed-off-by: Sergii Golovatiuk <sgolovatiuk@mirantis.com>
51 lines
2.8 KiB
Django/Jinja
51 lines
2.8 KiB
Django/Jinja
# logging to stderr means we get it in the systemd journal
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KUBE_LOGGING="--logtostderr=true"
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KUBE_LOG_LEVEL="--v={{ kube_log_level }}"
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# The address for the info server to serve on (set to 0.0.0.0 or "" for all interfaces)
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KUBELET_ADDRESS="--address={{ ip | default("0.0.0.0") }}"
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# The port for the info server to serve on
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# KUBELET_PORT="--port=10250"
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# You may leave this blank to use the actual hostname
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KUBELET_HOSTNAME="--hostname-override={{ ansible_hostname }}"
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{# Base kubelet args #}
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{% set kubelet_args_base %}--pod-manifest-path={{ kube_manifest_dir }} \
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--pod-infra-container-image={{ pod_infra_image_repo }}:{{ pod_infra_image_tag }} \
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--kube-reserved cpu={{ kubelet_cpu_limit }},memory={{ kubelet_memory_limit|regex_replace('Mi', 'M') }} \
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--node-status-update-frequency={{ kubelet_status_update_frequency }}{% endset %}
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{# DNS settings for kubelet #}
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{% if dns_mode == 'kubedns' %}
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{% set kubelet_args_cluster_dns %}--cluster_dns={{ skydns_server }}{% endset %}
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{% elif dns_mode == 'dnsmasq_kubedns' %}
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{% set kubelet_args_cluster_dns %}--cluster_dns={{ dns_server }}{% endset %}
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{% else %}
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{% set kubelet_args_cluster_dns %}{% endset %}
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{% endif %}
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{% set kubelet_args_dns %}{{ kubelet_args_cluster_dns }} --cluster_domain={{ dns_domain }} --resolv-conf={{ kube_resolv_conf }}{% endset %}
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{# Location of the apiserver #}
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{% set kubelet_args_kubeconfig %}--kubeconfig={{ kube_config_dir}}/node-kubeconfig.yaml --require-kubeconfig{% endset %}
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{% if standalone_kubelet|bool %}
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{# We are on a master-only host. Make the master unschedulable in this case. #}
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{% set kubelet_args_kubeconfig %}{{ kubelet_args_kubeconfig }} --register-schedulable=false{% endset %}
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{% endif %}
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KUBELET_ARGS="{{ kubelet_args_base }} {{ kubelet_args_dns }} {{ kubelet_args_kubeconfig }}"
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{% if kube_network_plugin is defined and kube_network_plugin in ["calico", "weave", "canal"] %}
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KUBELET_NETWORK_PLUGIN="--network-plugin=cni --network-plugin-dir=/etc/cni/net.d"
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{% elif kube_network_plugin is defined and kube_network_plugin == "weave" %}
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DOCKER_SOCKET="--docker-endpoint=unix:/var/run/weave/weave.sock"
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{% elif kube_network_plugin is defined and kube_network_plugin == "cloud" %}
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# Please note that --reconcile-cidr is deprecated and a no-op in Kubernetes 1.5 but still required in 1.4
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KUBELET_NETWORK_PLUGIN="--hairpin-mode=promiscuous-bridge --network-plugin=kubenet --reconcile-cidr=true"
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{% endif %}
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# Should this cluster be allowed to run privileged docker containers
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KUBE_ALLOW_PRIV="--allow-privileged=true"
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{% if cloud_provider is defined and cloud_provider in ["openstack", "azure"] %}
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KUBELET_CLOUDPROVIDER="--cloud-provider={{ cloud_provider }} --cloud-config={{ kube_config_dir }}/cloud_config"
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{% elif cloud_provider is defined and cloud_provider == "aws" %}
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KUBELET_CLOUDPROVIDER="--cloud-provider={{ cloud_provider }}"
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{% else %}
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KUBELET_CLOUDPROVIDER=""
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{% endif %}
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