# 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 %} --pod-manifest-path={{ kube_manifest_dir }} \ --cadvisor-port={{ kube_cadvisor_port }} \ --pod-infra-container-image={{ pod_infra_image_repo }}:{{ pod_infra_image_tag }} \ --node-status-update-frequency={{ kubelet_status_update_frequency }} \ --docker-disable-shared-pid={{ kubelet_disable_shared_pid }} \ --client-ca-file={{ kube_cert_dir }}/ca.pem \ --tls-cert-file={{ kube_cert_dir }}/node-{{ inventory_hostname }}.pem \ --tls-private-key-file={{ kube_cert_dir }}/node-{{ inventory_hostname }}-key.pem \ --anonymous-auth=false \ --read-only-port={{ kube_read_only_port }} \ {% if kube_version | version_compare('v1.6', '>=') %} {# flag got removed with 1.7.0 #} {% if kube_version | version_compare('v1.7', '<') %} --enable-cri={{ kubelet_enable_cri }} \ {% endif %} --cgroup-driver={{ kubelet_cgroup_driver|default(kubelet_cgroup_driver_detected) }} \ --cgroups-per-qos={{ kubelet_cgroups_per_qos }} \ --max-pods={{ kubelet_max_pods }} \ {% 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 kubelet_authentication_token_webhook %} --authentication-token-webhook \ {% endif %} {% if kubelet_authorization_mode_webhook %} --authorization-mode=Webhook \ {% endif %} --enforce-node-allocatable={{ kubelet_enforce_node_allocatable }} {% endif %}{% endset %} {# 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 %} {# Location of the apiserver #} {% if kube_version | version_compare('v1.8', '<') %} {% set kubelet_args_kubeconfig %}--kubeconfig={{ kube_config_dir}}/node-kubeconfig.yaml --require-kubeconfig{% endset %} {% else %} {% set kubelet_args_kubeconfig %}--kubeconfig={{ kube_config_dir}}/node-kubeconfig.yaml{% endset %} {% endif %} {% if standalone_kubelet|bool %} {# We are on a master-only host. Make the master unschedulable in this case. #} {% if kube_version | version_compare('v1.6', '>=') %} {# Set taints on the master so that it's unschedulable by default. Use node-role.kubernetes.io/master taint like kubeadm. #} {% set kubelet_args_kubeconfig %}{{ kubelet_args_kubeconfig }} --register-with-taints=node-role.kubernetes.io/master=:NoSchedule{% endset %} {% else %} {# --register-with-taints was added in 1.6 so just register unschedulable if Kubernetes < 1.6 #} {% set kubelet_args_kubeconfig %}{{ kubelet_args_kubeconfig }} --register-schedulable=false{% endset %} {% endif %} {% endif %} {# 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 %} {# 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 %} {% if inventory_hostname in groups['kube-ingress']|default([]) %} {% set dummy = role_node_labels.append('node-role.kubernetes.io/ingress=true') %} {% endif %} {% set inventory_node_labels = [] %} {% if node_labels is defined %} {% for labelname, labelvalue in node_labels.iteritems() %} {% 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 }} {{ kubelet_args_kubeconfig }} {{ kube_reserved }} --node-labels={{ all_node_labels | join(',') }} {% if kube_feature_gates %} --feature-gates={{ kube_feature_gates|join(',') }} {% endif %} {% 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 == "weave" %} DOCKER_SOCKET="--docker-endpoint=unix:/var/run/weave/weave.sock" {% elif kube_network_plugin is defined and kube_network_plugin == "cloud" %} KUBELET_NETWORK_PLUGIN="--hairpin-mode=promiscuous-bridge --network-plugin=kubenet" {% endif %} KUBELET_VOLUME_PLUGIN="--volume-plugin-dir={{ kubelet_flexvolumes_plugins_dir }}" # 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