feat(k3s): add node taints configuration and update documentation

ansible/roles/k3s/templates/k3s-agent.yaml.j2

@@ -20,6 +20,14 @@ node-label:
 {% endfor %}
 {% endif %}
 
+# 节点污点
+{% if node_taints is defined %}
+node-taint:
+{% for taint in node_taints %}
+  - "{{ taint }}"
+{% endfor %}
+{% endif %}
+
 # Kubelet 资源预留
 {% if kubelet_reserved is defined %}
 kubelet-arg:

ansible/roles/k3s/templates/k3s-server.yaml.j2

@@ -46,3 +46,11 @@ node-label:
 {% endfor %}
 {% endif %}
 
+# 节点污点
+{% if node_taints is defined %}
+node-taint:
+{% for taint in node_taints %}
+  - "{{ taint }}"
+{% endfor %}
+{% endif %}
+