diff --git a/docs/vars.md b/docs/vars.md index 5ea76b0e5..f4956c882 100644 --- a/docs/vars.md +++ b/docs/vars.md @@ -118,6 +118,8 @@ Stack](https://github.com/kubernetes-incubator/kubespray/blob/master/docs/dns-st * *kubelet_cgroup_driver* - Allows manual override of the cgroup-driver option for Kubelet. By default autodetection is used to match Docker configuration. +* *node_labels* - Labels applied to nodes via kubelet --node-labels parameter. + For example, labels can be set in the inventory as variables or more widely in group_vars ##### Custom flags for Kube Components For all kube components, custom flags can be passed in. This allows for edge cases where users need changes to the default deployment that may not be applicable to all deployments. This can be done by providing a list of flags. Example: diff --git a/roles/kubernetes/node/templates/kubelet.standard.env.j2 b/roles/kubernetes/node/templates/kubelet.standard.env.j2 index 08fe1644b..50a5441e0 100644 --- a/roles/kubernetes/node/templates/kubelet.standard.env.j2 +++ b/roles/kubernetes/node/templates/kubelet.standard.env.j2 @@ -81,18 +81,26 @@ KUBELET_HOSTNAME="--hostname-override={{ kube_override_hostname }}" {% endif %} {# Kubelet node labels #} +{% set role_node_labels = [] %} {% if inventory_hostname in groups['kube-master'] %} -{% set node_labels %}--node-labels=node-role.kubernetes.io/master=true{% endset %} +{% do role_node_labels.append('node-role.kubernetes.io/master=true') %} {% if not standalone_kubelet|bool %} -{% set node_labels %}{{ node_labels }},node-role.kubernetes.io/node=true{% endset %} +{% do role_node_labels.append('node-role.kubernetes.io/node=true') %} {% endif %} {% elif inventory_hostname in groups['kube-ingress']|default([]) %} {% set node_labels %}--node-labels=node-role.kubernetes.io/ingress=true{% endset %} {% else %} -{% set node_labels %}--node-labels=node-role.kubernetes.io/node=true{% endset %} +{% do 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.iteritems() %} +{% do inventory_node_labels.append(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 }} {% 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 %}" +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" %} diff --git a/tests/ansible.cfg b/tests/ansible.cfg index 9e734403e..9c4057529 100644 --- a/tests/ansible.cfg +++ b/tests/ansible.cfg @@ -10,3 +10,4 @@ fact_caching_connection = /tmp stdout_callback = skippy library = ./library:../library callback_whitelist = profile_tasks +jinja2_extensions = jinja2.ext.do