1 line
24 KiB
JavaScript
1 line
24 KiB
JavaScript
(window.webpackJsonp=window.webpackJsonp||[]).push([[17],{111:function(s,a,e){s.exports=e.p+"assets/img/image-20190715085036593.55559549.png"},112:function(s,a,e){s.exports=e.p+"assets/img/image2019-07-15_09.01.21.0e0d34f2.png"},343:function(s,a,e){s.exports=e.p+"assets/img/image-20190726214032585.f5bc62e4.png"},344:function(s,a,e){s.exports=e.p+"assets/img/image-20190715101542756.5934c00e.png"},345:function(s,a,e){s.exports=e.p+"assets/img/image-20190715193838012.eca23618.png"},365:function(s,a,e){"use strict";e.r(a);var t=e(0),r=Object(t.a)({},function(){var s=this,a=s.$createElement,t=s._self._c||a;return t("ContentSlotsDistributor",{attrs:{"slot-key":s.$parent.slotKey}},[t("h1",{attrs:{id:"安装-kubernetes-单master节点"}},[t("a",{staticClass:"header-anchor",attrs:{href:"#安装-kubernetes-单master节点","aria-hidden":"true"}},[s._v("#")]),s._v(" 安装 Kubernetes 单Master节点")]),s._v(" "),t("p",[s._v("对于 Kubernetes 初学者，推荐的在阿里云采购如下配置：")]),s._v(" "),t("ul",[t("li",[s._v("3台 2核4G 的ECS（突发性能实例 t5 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"),t("p",[s._v("请参考阿里云基于ECS "),t("a",{attrs:{href:"https://help.aliyun.com/document_detail/35109.html?spm=5176.2020520101.0.0.75fc4df5mtdFmV",target:"_blank",rel:"noopener noreferrer"}},[s._v("制作虚拟机镜像"),t("OutboundLink")],1),s._v(" 的文档")]),s._v(" "),t("h2",{attrs:{id:"初始化-master-节点"}},[t("a",{staticClass:"header-anchor",attrs:{href:"#初始化-master-节点","aria-hidden":"true"}},[s._v("#")]),s._v(" 初始化 master 节点")]),s._v(" "),t("div",{staticClass:"tip custom-block"},[t("p",[s._v("以 root 身份在 demo-master-a-1 机器上执行")])]),s._v(" "),t("p",[t("strong",[s._v("配置 apiserver.demo 的域名")])]),s._v(" "),t("div",{staticClass:"language-bash extra-class"},[t("pre",{pre:!0,attrs:{class:"language-bash"}},[t("code",[t("span",{pre:!0,attrs:{class:"token builtin class-name"}},[s._v("echo")]),s._v(" "),t("span",{pre:!0,attrs:{class:"token string"}},[s._v('"x.x.x.x apiserver.demo"')]),s._v(" "),t("span",{pre:!0,attrs:{class:"token operator"}},[s._v(">>")]),s._v(" /etc/hosts\n")])])]),t("div",{staticClass:"warning 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string"}},[s._v('"apiserver.demo:6443"')]),s._v("\n\n")])])]),t("p",[t("strong",[s._v("初始化 apiserver")])]),s._v(" "),t("div",{staticClass:"language-bash extra-class"},[t("pre",{pre:!0,attrs:{class:"language-bash"}},[t("code",[s._v("kubeadm init --config"),t("span",{pre:!0,attrs:{class:"token operator"}},[s._v("=")]),s._v("kubeadm-config.yaml --upload-certs\n")])])]),t("p",[s._v("执行结果如下图所示：")]),s._v(" "),t("p",[t("img",{attrs:{src:e(344),alt:"image-20190715101542756",title:":size=800x388"}})]),s._v(" "),t("p",[t("strong",[s._v("初始化 root 用户的 kubectl 配置")])]),s._v(" "),t("div",{staticClass:"language-bash extra-class"},[t("pre",{pre:!0,attrs:{class:"language-bash"}},[t("code",[t("span",{pre:!0,attrs:{class:"token function"}},[s._v("rm")]),s._v(" -rf /root/.kube/\n"),t("span",{pre:!0,attrs:{class:"token function"}},[s._v("mkdir")]),s._v(" /root/.kube/\n"),t("span",{pre:!0,attrs:{class:"token function"}},[s._v("cp")]),s._v(" -i /etc/kubernetes/admin.conf /root/.kube/config\n")])])]),t("p",[t("strong",[s._v("安装 calico")])]),s._v(" "),t("div",{staticClass:"language-bash extra-class"},[t("pre",{pre:!0,attrs:{class:"language-bash"}},[t("code",[s._v("kubectl apply -f https://docs.projectcalico.org/v3.6/getting-started/kubernetes/installation/hosted/kubernetes-datastore/calico-networking/1.7/calico.yaml\n")])])]),t("blockquote",[t("p",[s._v("安装calico， 请参考https://docs.projectcalico.org/v3.6/getting-started/kubernetes/")])]),s._v(" "),t("p",[t("strong",[s._v("等待calico安装就绪：")])]),s._v(" "),t("p",[s._v("执行如下命令，等待 3-10 分钟，直到所有的容器组处于 Running 状态")]),s._v(" "),t("div",{staticClass:"language-bash extra-class"},[t("pre",{pre:!0,attrs:{class:"language-bash"}},[t("code",[t("span",{pre:!0,attrs:{class:"token function"}},[s._v("watch")]),s._v(" kubectl get pod -n kube-system\n")])])]),t("p",[t("strong",[s._v("检查 master 初始化结果")])]),s._v(" "),t("p",[s._v("在 master 节点 demo-master-a-1 上执行")]),s._v(" "),t("div",{staticClass:"language-bash extra-class"},[t("pre",{pre:!0,attrs:{class:"language-bash"}},[t("code",[s._v("kubectl get nodes\n")])])]),t("h2",{attrs:{id:"初始化-worker节点"}},[t("a",{staticClass:"header-anchor",attrs:{href:"#初始化-worker节点","aria-hidden":"true"}},[s._v("#")]),s._v(" 初始化 worker节点")]),s._v(" "),t("h3",{attrs:{id:"获得-join命令参数"}},[t("a",{staticClass:"header-anchor",attrs:{href:"#获得-join命令参数","aria-hidden":"true"}},[s._v("#")]),s._v(" 获得 join命令参数")]),s._v(" "),t("p",[t("strong",[s._v("在 master 节点 demo-master-a-1 节点执行")])]),s._v(" "),t("div",{staticClass:"language-bash extra-class"},[t("pre",{pre:!0,attrs:{class:"language-bash"}},[t("code",[s._v("kubeadm token create --print-join-command\n")])])]),t("p",[s._v("可获取kubeadm join 命令及参数，如下所示")]),s._v(" "),t("div",{staticClass:"language-bash extra-class"},[t("pre",{pre:!0,attrs:{class:"language-bash"}},[t("code",[s._v("kubeadm "),t("span",{pre:!0,attrs:{class:"token function"}},[s._v("join")]),s._v(" apiserver.demo:6443 --token mpfjma.4vjjg8flqihor4vt --discovery-token-ca-cert-hash sha256:6f7a8e40a810323672de5eee6f4d19aa2dbdb38411845a1bf5dd63485c43d303\n")])])]),t("h3",{attrs:{id:"初始化worker"}},[t("a",{staticClass:"header-anchor",attrs:{href:"#初始化worker","aria-hidden":"true"}},[s._v("#")]),s._v(" 初始化worker")]),s._v(" "),t("p",[t("strong",[s._v("针对所有的 worker 节点执行")])]),s._v(" "),t("div",{staticClass:"language-bash extra-class"},[t("pre",{pre:!0,attrs:{class:"language-bash"}},[t("code",[t("span",{pre:!0,attrs:{class:"token builtin class-name"}},[s._v("echo")]),s._v(" "),t("span",{pre:!0,attrs:{class:"token string"}},[s._v('"x.x.x.x apiserver.demo"')]),s._v(" "),t("span",{pre:!0,attrs:{class:"token operator"}},[s._v(">>")]),s._v(" /etc/hosts\nkubeadm "),t("span",{pre:!0,attrs:{class:"token function"}},[s._v("join")]),s._v(" apiserver.demo:6443 --token mpfjma.4vjjg8flqihor4vt --discovery-token-ca-cert-hash sha256:6f7a8e40a810323672de5eee6f4d19aa2dbdb38411845a1bf5dd63485c43d303\n")])])]),t("div",{staticClass:"tip custom-block"},[t("ul",[t("li",[s._v("将 x.x.x.x 替换为 demo-master-a-1 的实际 ip")]),s._v(" "),t("li",[s._v("将 kubeadm join 命令后的参数替换为上一个步骤中实际从 demo-master-a-1 节点获得的参数")])])]),s._v(" "),t("h3",{attrs:{id:"检查初始化结果"}},[t("a",{staticClass:"header-anchor",attrs:{href:"#检查初始化结果","aria-hidden":"true"}},[s._v("#")]),s._v(" 检查初始化结果")]),s._v(" "),t("p",[s._v("在 master 节点 demo-master-a-1 上执行")]),s._v(" "),t("div",{staticClass:"language-bash extra-class"},[t("pre",{pre:!0,attrs:{class:"language-bash"}},[t("code",[s._v("kubectl get nodes\n")])])]),t("p",[t("img",{attrs:{src:e(345),alt:"image-20190715193838012"}})]),s._v(" "),t("h2",{attrs:{id:"移除-worker-节点"}},[t("a",{staticClass:"header-anchor",attrs:{href:"#移除-worker-节点","aria-hidden":"true"}},[s._v("#")]),s._v(" 移除 worker 节点")]),s._v(" "),t("div",{staticClass:"warning custom-block"},[t("p",[s._v("正常情况下，您无需移除 worker 节点，如果添加到集群出错，您可以移除 worker 节点，再重新尝试添加")])]),s._v(" "),t("p",[s._v("在准备移除的 worker 节点上执行")]),s._v(" "),t("div",{staticClass:"language-bash extra-class"},[t("pre",{pre:!0,attrs:{class:"language-bash"}},[t("code",[s._v("kubeadm reset\n")])])]),t("p",[s._v("在 master 节点 demo-master-a-1 上执行")]),s._v(" "),t("div",{staticClass:"language-bash extra-class"},[t("pre",{pre:!0,attrs:{class:"language-bash"}},[t("code",[s._v("kubectl delete node demo-worker-x-x\n")])])]),t("div",{staticClass:"tip custom-block"},[t("ul",[t("li",[s._v("将 demo-worker-x-x 替换为要移除的 worker 节点的名字")]),s._v(" "),t("li",[s._v("worker 节点的名字可以通过在节点 demo-master-a-1 上执行 kubectl get nodes 命令获得")])])]),s._v(" "),t("h2",{attrs:{id:"安装-ingress-controller"}},[t("a",{staticClass:"header-anchor",attrs:{href:"#安装-ingress-controller","aria-hidden":"true"}},[s._v("#")]),s._v(" 安装 Ingress Controller")]),s._v(" "),t("blockquote",[t("p",[s._v("Ingress官方文档：https://kubernetes.io/docs/concepts/services-networking/ingress/")]),s._v(" "),t("p",[s._v("Ingress Controllers官网介绍：https://kubernetes.io/docs/concepts/services-networking/ingress-controllers/")]),s._v(" "),t("p",[s._v("本文中使用如下部署方式：https://kubernetes.github.io/ingress-nginx/deploy/baremetal/#using-a-self-provisioned-edge")]),s._v(" "),t("p",[s._v("kubernetes支持多种Ingress Controllers，本文推荐使用 https://github.com/nginxinc/kubernetes-ingress")])]),s._v(" "),t("p",[t("strong",[s._v("在 demo-master-a-1 上执行")])]),s._v(" "),t("div",{staticClass:"language-bash extra-class"},[t("pre",{pre:!0,attrs:{class:"language-bash"}},[t("code",[s._v("kubectl apply -f https://raw.githubusercontent.com/eip-work/eip-monitor-repository/master/dashboard/nginx-ingress.yaml\n")])])]),t("p",[t("strong",[s._v("配置域名解析")])]),s._v(" "),t("p",[s._v("将域名 *.demo.yourdomain.com 解析到 demo-worker-a-2 的 IP 地址 z.z.z.z （也可以是 demo-worker-a-1 的地址 y.y.y.y）")]),s._v(" "),t("div",{staticClass:"tip custom-block"},[t("p",[s._v("由于需要申请域名，过程会比较繁琐，有如下两种替代方案：")]),s._v(" "),t("ul",[t("li",[s._v("在您的客户端机器（访问部署在K8S上的 web 应用的浏览器所在的机器）设置 hosts 配置；")]),s._v(" "),t("li",[s._v("暂时放弃域名的配置，临时使用 NodePort 或者 "),t("code",[s._v("kubectl port-forward")]),s._v(" 的方式访问部署在 K8S 上的 web 应用")])])]),s._v(" "),t("p",[t("strong",[s._v("验证配置")])]),s._v(" "),t("p",[s._v("在浏览器访问 a.demo.yourdomain.com，将得到 404 NotFound 错误页面")]),s._v(" "),t("h2",{attrs:{id:"下一步"}},[t("a",{staticClass:"header-anchor",attrs:{href:"#下一步","aria-hidden":"true"}},[s._v("#")]),s._v(" 下一步")]),s._v(" "),t("p",[s._v("🎉 🎉 🎉")]),s._v(" "),t("p",[s._v("您已经完成了 Kubernetes 集群的安装，下一步请：")]),s._v(" "),t("p",[t("a",{attrs:{href:"/install/install-dashboard"}},[s._v("安装 Kuboard")])])])},[],!1,null,null,null);a.default=r.exports}}]); |