kubeasz/roles/kube-node/defaults/main.yml

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# 默认使用kube-proxy的 'iptables' 模式,可选 'ipvs' 模式(experimental)
PROXY_MODE: "iptables"
# 基础容器镜像
SANDBOX_IMAGE: "mirrorgooglecontainers/pause-amd64:3.1"
#SANDBOX_IMAGE: "registry.access.redhat.com/rhel7/pod-infrastructure:latest"
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# Kubelet 根目录
KUBELET_ROOT_DIR: "/var/lib/kubelet"
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# node节点最大pod 数
MAX_PODS: 110
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# 配置为kube组件kubelet,kube-proxy,dockerd等预留的资源量
KUBE_RESERVED_ENABLED: "yes"
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KUBE_RESERVED: "cpu=200m,memory=500Mi,ephemeral-storage=1Gi"
# k8s 官方不建议草率开启 system-reserved, 除非你基于长期监控,了解系统的资源占用状况;并且随着系统运行时间,需要适当增加资源预留
SYS_RESERVED_ENABLED: "no"
# 以下系统预留设置基于 4c/8g 虚机,最小化安装系统服务,如果使用高性能物理机请适当增加数值
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SYS_RESERVED: "cpu=200m,memory=500Mi,ephemeral-storage=1Gi"
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# 配置kubelet的hard eviction条件
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HARD_EVICTION: "memory.available<500Mi,nodefs.available<10%"
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# node 请求 apiserver 负载均衡算法,常见如下:
# "roundrobin": 基于服务器权重的轮询
# "leastconn": 基于服务器最小连接数
# "source": 基于请求源IP地址
# "uri": 基于请求的URI
BALANCE_ALG: "roundrobin"
# 设置 APISERVER 地址
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KUBE_APISERVER: "{%- if inventory_hostname in groups['kube-master'] -%} \
https://{{ inventory_hostname }}:6443 \
{%- else -%} \
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{%- if groups['kube-master']|length > 1 -%} \
https://127.0.0.1:6443 \
{%- else -%} \
https://{{ groups['kube-master'][0] }}:6443 \
{%- endif -%} \
{%- endif -%}"
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# 增加/删除 master 节点时node 节点需要重新配置 haproxy 等
MASTER_CHG: "no"
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# 离线安装 haproxy (offline|online)
INSTALL_SOURCE: "online"