kubespray/roles/kubernetes/node/templates/kubelet.kubeadm.env.j2

### Upstream source https://github.com/kubernetes/release/blob/master/debian/xenial/kubeadm/channel/stable/etc/systemd/system/kubelet.service.d/10-kubeadm.conf
### All upstream values should be present in this file

# logging to stderr means we get it in the systemd journal
KUBE_LOGTOSTDERR="--logtostderr=true"
KUBE_LOG_LEVEL="--v={{ kube_log_level }}"
# The address for the info server to serve on (set to 0.0.0.0 or "" for all interfaces)
KUBELET_ADDRESS="--address={{ kubelet_bind_address }} --node-ip={{ kubelet_address }}"
# The port for the info server to serve on
# KUBELET_PORT="--port=10250"
{% if kube_override_hostname|default('') %}
# You may leave this blank to use the actual hostname
KUBELET_HOSTNAME="--hostname-override={{ kube_override_hostname }}"
{% endif %}
{# Base kubelet args #}
{% set kubelet_args_base -%}
{# start kubeadm specific settings #}
--bootstrap-kubeconfig=/etc/kubernetes/bootstrap-kubelet.conf \
--kubeconfig={{ kube_config_dir }}/kubelet.conf \
{% if kube_version | version_compare('v1.8', '<') %}
--require-kubeconfig \
{% endif %}
--authorization-mode=Webhook \
--client-ca-file={{ kube_cert_dir }}/ca.crt \
--pod-manifest-path={{ kube_manifest_dir }} \
--cadvisor-port={{ kube_cadvisor_port }} \
{# end kubeadm specific settings #}
--pod-infra-container-image={{ pod_infra_image_repo }}:{{ pod_infra_image_tag }} \
--kube-reserved cpu={{ kubelet_cpu_limit }},memory={{ kubelet_memory_limit|regex_replace('Mi', 'M') }} \
--node-status-update-frequency={{ kubelet_status_update_frequency }} \
--cgroup-driver={{ kubelet_cgroup_driver|default(kubelet_cgroup_driver_detected) }} \
--docker-disable-shared-pid={{ kubelet_disable_shared_pid }} \
--anonymous-auth=false \
--read-only-port={{ kube_read_only_port }} \
{% if kube_version | version_compare('v1.8', '<') %}
--experimental-fail-swap-on={{ kubelet_fail_swap_on|default(true)}} \
{% else %}
--fail-swap-on={{ kubelet_fail_swap_on|default(true)}} \
{% endif %}
{% endset %}

{# Node reserved CPU/memory #}
{% if is_kube_master|bool %}
{% set kubelet_reserve %}--kube-reserved cpu={{ kubelet_master_cpu_limit }},memory={{ kubelet_master_memory_limit|regex_replace('Mi', 'M') }}{% endset %}
{% else %}
{% set kubelet_reserve %}--kube-reserved cpu={{ kubelet_cpu_limit }},memory={{ kubelet_memory_limit|regex_replace('Mi', 'M') }}{% endset %}
{% endif %}

{# DNS settings for kubelet #}
{% if dns_mode == 'kubedns' %}
{% set kubelet_args_cluster_dns %}--cluster-dns={{ skydns_server }}{% endset %}
{% elif dns_mode == 'dnsmasq_kubedns' %}
{% set kubelet_args_cluster_dns %}--cluster-dns={{ dnsmasq_dns_server }}{% endset %}
{% elif dns_mode == 'manual' %}
{% set kubelet_args_cluster_dns %}--cluster-dns={{ manual_dns_server }}{% endset %}
{% else %}
{% set kubelet_args_cluster_dns %}{% endset %}
{% endif %}
{% set kubelet_args_dns %}{{ kubelet_args_cluster_dns }} --cluster-domain={{ dns_domain }} --resolv-conf={{ kube_resolv_conf }}{% endset %}


KUBELET_ARGS="{{ kubelet_args_base }} {{ kubelet_args_dns }} {{ kubelet_reserve }} {% if kubelet_custom_flags is string %} {{kubelet_custom_flags}} {% else %}{% for flag in kubelet_custom_flags %} {{flag}} {% endfor %}{% endif %}"
{% if kube_network_plugin is defined and kube_network_plugin in ["calico", "canal", "flannel", "weave", "contiv", "cilium"] %}
KUBELET_NETWORK_PLUGIN="--network-plugin=cni --cni-conf-dir=/etc/cni/net.d --cni-bin-dir=/opt/cni/bin"
{% elif kube_network_plugin is defined and kube_network_plugin == "cloud" %}
KUBELET_NETWORK_PLUGIN="--hairpin-mode=promiscuous-bridge --network-plugin=kubenet"
{% endif %}
# Should this cluster be allowed to run privileged docker containers
KUBE_ALLOW_PRIV="--allow-privileged=true"
{% if cloud_provider is defined and cloud_provider in ["openstack", "azure", "vsphere"] %}
KUBELET_CLOUDPROVIDER="--cloud-provider={{ cloud_provider }} --cloud-config={{ kube_config_dir }}/cloud_config"
{% elif cloud_provider is defined and cloud_provider == "aws" %}
KUBELET_CLOUDPROVIDER="--cloud-provider={{ cloud_provider }}"
{% else %}
KUBELET_CLOUDPROVIDER=""
{% endif %}

PATH={{ bin_dir }}:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin