generated from bing/readnotes
63 lines
1.5 KiB
Markdown
63 lines
1.5 KiB
Markdown
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# 使用kubeadm安装基于堆叠etcd的kubernetes
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安装之前，请确认已经按要求准备好正确数量的节点(最低3个，推荐6个)并已经根据[配置运行环境](config_run_env.md)完成了环境配置。
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## 安装配置haproxy
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kubernetes可以使用keepalived、haproxy、kube-vip来实现apiserver的高可用，这里使用haproxy。
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参考[haproxy安装与配置](install_haproxy.md)完成haproxy的配置。
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## 创建配置
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参照[kubeadm 配置示例](kubeadm_config_example.md)创建与准备好的节点符合的配置，每个节点都有各自的配置。配置创建好之后放置于`/tmp/${HOST_IP}`目录下
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## 初始化第一个controlplane
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备份并重置节点
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```bash
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if [ -f /etc/kubernetes/manifests/haproxy.yaml ];then
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cp /etc/kubernetes/manifests/haproxy.yaml /tmp/haproxy.yaml.backup
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fi
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kubeadm reset -f
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```
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初始化controlplane
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```bash
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kubeadm init --config /tmp/kubeadmcfg.yaml
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```
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还原haproxy 并重启kubelet
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```bash
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if [ -f /tmp/haproxy.yaml.backup ];then
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cp /tmp/haproxy.yaml.backup /etc/kubernetes/manifests/haproxy.yaml
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systemctl restart kubelet
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fi
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```
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## 初始化其他节点
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备份并重置节点
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```bash
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if [ -f /etc/kubernetes/manifests/haproxy.yaml ];then
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cp /etc/kubernetes/manifests/haproxy.yaml /tmp/haproxy.yaml.backup
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fi
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kubeadm reset -f
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```
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使用kubeadm join... 指令加入集群
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还原haproxy 并重启kubelet
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```bash
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if [ -f /tmp/haproxy.yaml.backup ];then
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cp /tmp/haproxy.yaml.backup /etc/kubernetes/manifests/haproxy.yaml
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systemctl restart kubelet
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fi
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```
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