### Upstream source https://github.com/kubernetes/release/blob/master/debian/xenial/kubeadm/channel/stable/etc/systemd/system/kubelet.service.d/ ### 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 %} {% if kubelet_authentication_token_webhook %} --authentication-token-webhook \ {% endif %} {% if kubelet_authorization_mode_webhook %} --authorization-mode=Webhook \ {% endif %} --enforce-node-allocatable={{ kubelet_enforce_node_allocatable }} \ --client-ca-file={{ kube_cert_dir }}/ca.crt \ --pod-manifest-path={{ kube_manifest_dir }} \ {% if kube_version | version_compare('v1.12.0', '<') %} --cadvisor-port={{ kube_cadvisor_port }} \ {% endif %} {# end kubeadm specific settings #} --pod-infra-container-image={{ pod_infra_image_repo }}:{{ pod_infra_image_tag }} \ --node-status-update-frequency={{ kubelet_status_update_frequency }} \ --cgroup-driver={{ kubelet_cgroup_driver|default(kubelet_cgroup_driver_detected) }} \ --max-pods={{ kubelet_max_pods }} \ {% if container_manager == 'docker' and kube_version | version_compare('v1.12.0', '<') %} --docker-disable-shared-pid={{ kubelet_disable_shared_pid }} \ {% endif %} {% if container_manager == 'crio' %} --container-runtime=remote \ --container-runtime-endpoint=/var/run/crio/crio.sock \ {% endif %} --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 %} {% if dynamic_kubelet_configuration %} --dynamic-config-dir={{ dynamic_kubelet_configuration_dir }} \ {% endif %} --runtime-cgroups={{ kubelet_runtime_cgroups }} --kubelet-cgroups={{ kubelet_kubelet_cgroups }} \ {% endset %} {# Node reserved CPU/memory #} {% if is_kube_master|bool %} {% set kube_reserved %}--kube-reserved cpu={{ kube_master_cpu_reserved }},memory={{ kube_master_memory_reserved|regex_replace('Mi', 'M') }}{% endset %} {% else %} {% set kube_reserved %}--kube-reserved cpu={{ kube_cpu_reserved }},memory={{ kube_memory_reserved|regex_replace('Mi', 'M') }}{% endset %} {% endif %} {# DNS settings for kubelet #} {% if dns_mode in ['kubedns', 'coredns'] %} {% set kubelet_args_cluster_dns %}--cluster-dns={{ skydns_server }}{% endset %} {% elif dns_mode == 'coredns_dual' %} {% set kubelet_args_cluster_dns %}--cluster-dns={{ skydns_server }},{{ skydns_server_secondary }}{% 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 node labels #} {% set role_node_labels = [] %} {% if inventory_hostname in groups['kube-master'] %} {% set dummy = role_node_labels.append('node-role.kubernetes.io/master=true') %} {% if not standalone_kubelet|bool %} {% set dummy = role_node_labels.append('node-role.kubernetes.io/node=true') %} {% endif %} {% else %} {% set dummy = role_node_labels.append('node-role.kubernetes.io/node=true') %} {% endif %} {% set inventory_node_labels = [] %} {% if node_labels is defined %} {% for labelname, labelvalue in node_labels.items() %} {% set dummy = inventory_node_labels.append('%s=%s'|format(labelname, labelvalue)) %} {% endfor %} {% endif %} {% set all_node_labels = role_node_labels + inventory_node_labels %} KUBELET_ARGS="{{ kubelet_args_base }} {{ kubelet_args_dns }} {{ kube_reserved }} --node-labels={{ all_node_labels | join(',') }} {% if kubelet_custom_flags is string %} {{kubelet_custom_flags}} {% else %}{% for flag in kubelet_custom_flags %} {{flag}} {% endfor %}{% endif %}{% if inventory_hostname in groups['kube-node'] %}{% if kubelet_node_custom_flags is string %} {{kubelet_node_custom_flags}} {% else %}{% for flag in kubelet_node_custom_flags %} {{flag}} {% endfor %}{% endif %}{% endif %}" {% if kube_network_plugin is defined and kube_network_plugin in ["calico", "canal", "flannel", "weave", "contiv", "cilium", "kube-router"] %} 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", "aws"] %} KUBELET_CLOUDPROVIDER="--cloud-provider={{ cloud_provider }} --cloud-config={{ kube_config_dir }}/cloud_config" {% elif cloud_provider is defined and cloud_provider in ["oci", "external"] %} KUBELET_CLOUDPROVIDER="--cloud-provider=external" {% else %} KUBELET_CLOUDPROVIDER="" {% endif %} PATH={{ bin_dir }}:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin