kubespray/roles/kubernetes/node/templates/kubelet.service.j2

[Unit]
Description=Kubernetes Kubelet Server
Documentation=https://github.com/GoogleCloudPlatform/kubernetes
After={{ container_manager }}.service
{% if container_manager == 'docker' %}
Wants=docker.socket
{% else %}
Wants={{ container_manager }}.service
{% endif %}
{% for kubelet_dependency in kubelet_systemd_wants_dependencies|default([]) %}
{% if kubelet_dependency|length > 0 %}
Wants={{ kubelet_dependency }}
{% endif %}
{% endfor %}

[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 \
		$KUBELET_API_SERVER \
		$KUBELET_ADDRESS \
		$KUBELET_PORT \
		$KUBELET_HOSTNAME \
		$KUBELET_ARGS \
		$DOCKER_SOCKET \
		$KUBELET_NETWORK_PLUGIN \
		$KUBELET_VOLUME_PLUGIN \
		$KUBELET_CLOUDPROVIDER
Restart=always
RestartSec=10s
{% if kubelet_systemd_hardening %}
# Hardening setup
IPAddressDeny=any
IPAddressAllow={{ kubelet_secure_addresses }}
{% endif %}

[Install]
WantedBy=multi-user.target