diff --git a/.vuepress/config.js b/.vuepress/config.js index 1d35287..d906b6c 100644 --- a/.vuepress/config.js +++ b/.vuepress/config.js @@ -23,6 +23,7 @@ module.exports = { }, 'reading-progress': {}, 'vuepress-plugin-element-tabs': {}, + 'vuepress-plugin-baidu-autopush':{}, 'seo': { siteTitle: (_, $site) => $site.title, title: $page => $page.title, diff --git a/docs/404.html b/docs/404.html index 352a631..d83598f 100644 --- a/docs/404.html +++ b/docs/404.html @@ -7,11 +7,11 @@ - + -

404

That's a Four-Oh-Four.
Take me home.
- +

404

How did we get here?
Take me home.
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"),r("p",[e._v("本文将会简单介绍Kubernetes的核心概念。因为这些定义可以在Kubernetes的文档中找到，所以文章也会避免用大段的枯燥的文字介绍。相反，我们会使用一些图表（其中一些是动画）和示例来解释这些概念。我们发现一些概念（比如Service）如果没有图表的辅助就很难全面地理解。在合适的地方我们也会提供Kubernetes文档的链接以便读者深入学习。")]),e._v(" "),r("h2",{attrs:{id:"什么是kubernetes？"}},[r("a",{staticClass:"header-anchor",attrs:{href:"#什么是kubernetes？","aria-hidden":"true"}},[e._v("#")]),e._v(" 什么是Kubernetes？")]),e._v(" "),r("p",[e._v("Kubernetes（k8s）是自动化容器操作的开源平台，这些操作包括部署，调度和节点集群间扩展。如果你曾经用过Docker容器技术部署容器，那么可以将Docker看成Kubernetes内部使用的低级别组件。Kubernetes不仅仅支持Docker，还支持Rocket，这是另一种容器技术。\n使用Kubernetes可以：")]),e._v(" "),r("ul",[r("li",[e._v("自动化容器的部署和复制")]),e._v(" "),r("li",[e._v("随时扩展或收缩容器规模")]),e._v(" "),r("li",[e._v("将容器组织成组，并且提供容器间的负载均衡")]),e._v(" "),r("li",[e._v("很容易地升级应用程序容器的新版本")]),e._v(" "),r("li",[e._v("提供容器弹性，如果容器失效就替换它，等等...")])]),e._v(" "),r("h2",{attrs:{id:"集群"}},[r("a",{staticClass:"header-anchor",attrs:{href:"#集群","aria-hidden":"true"}},[e._v("#")]),e._v(" 集群")]),e._v(" 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app=myapp")]),e._v("）标记后台Pod。然后可以使用 "),r("a",{attrs:{href:"https://kubernetes.io/docs/concepts/overview/working-with-objects/labels/",target:"_blank",rel:"noopener noreferrer"}},[e._v("Selectors"),r("OutboundLink")],1),e._v(" 选择带有特定Label的Pod，并且将Service或者Replication Controller应用到上面。")]),e._v(" "),r("h2",{attrs:{id:"replication-controller"}},[r("a",{staticClass:"header-anchor",attrs:{href:"#replication-controller","aria-hidden":"true"}},[e._v("#")]),e._v(" Replication Controller")]),e._v(" "),r("p",[r("em",[e._v("是否手动创建Pod，如果想要创建同一个容器的多份拷贝，需要一个个分别创建出来么，能否将Pods划到逻辑组里？")])]),e._v(" "),r("p",[e._v("Replication Controller确保任意时间都有指定数量的Pod“副本”在运行。如果为某个Pod创建了Replication Controller并且指定3个副本，它会创建3个Pod，并且持续监控它们。如果某个Pod不响应，那么Replication Controller会替换它，保持总数为3.如下面的动画所示：")]),e._v(" "),r("p",[r("img",{attrs:{src:t(331),alt:"2.gif"}})]),e._v(" "),r("p",[e._v("如果之前不响应的Pod恢复了，现在就有4个Pod了，那么Replication Controller会将其中一个终止保持总数为3。如果在运行中将副本总数改为5，Replication Controller会立刻启动2个新Pod，保证总数为5。还可以按照这样的方式缩小Pod，这个特性在执行滚动 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"),r("strong",[e._v("抽象")]),e._v("\n现在，假定有2个后台Pod，并且定义后台Service的名称为‘backend-service’，lable选择器为（）。 的Service会完成如下两件重要的事情：")]),e._v(" "),r("ul",[r("li",[e._v("会为Service创建一个本地集群的DNS入口，因此前端Pod只需要DNS查找主机名为 ‘backend-service’，就能够解析出前端应用程序可用的IP地址。")]),e._v(" "),r("li",[e._v("现在前端已经得到了后台服务的IP地址，但是它应该访问2个后台Pod的哪一个呢？Service在这2个后台Pod之间提供透明的负载均衡，会将请求分发给其中的任意一个（如下面的动画所示）。通过每个Node上运行的代理（kube-proxy）完成。")])]),e._v(" "),r("p",[e._v("下述动画展示了Service的功能。注意该图作了很多简化。如果不进入网络配置，那么达到透明的负载均衡目标所涉及的底层网络和路由相对先进。如果有兴趣，有更深入的介绍。")]),e._v(" "),r("p",[r("img",{attrs:{src:t(332),alt:"3.gif"}})]),e._v(" "),r("p",[e._v("每个节点都运行如下Kubernetes关键组件：")]),e._v(" "),r("ul",[r("li",[e._v("Kubelet：是主节点代理。")]),e._v(" "),r("li",[e._v("Kube-proxy：Service使用其将链接路由到Pod，如上文所述。")]),e._v(" "),r("li",[e._v("Docker或Rocket：Kubernetes使用的容器技术来创建容器。")])]),e._v(" "),r("h3",{attrs:{id:"kubernetes-master"}},[r("a",{staticClass:"header-anchor",attrs:{href:"#kubernetes-master","aria-hidden":"true"}},[e._v("#")]),e._v(" Kubernetes Master")]),e._v(" 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extra-class"},[t("pre",{pre:!0,attrs:{class:"language-bash"}},[t("code",[a._v("docker tag d235b23c3570 k8s.gcr.io/kube-proxy:v1.15.0\ndocker tag 201c7a840312 k8s.gcr.io/kube-apiserver:v1.15.0\ndocker tag 2d3813851e87 k8s.gcr.io/kube-scheduler:v1.15.0\ndocker tag 8328bb49b652 k8s.gcr.io/kube-controller-manager:v1.15.0\ndocker tag da86e6ba6ca1 k8s.gcr.io/pause:3.1\ndocker tag eb516548c180 k8s.gcr.io/coredns:1.3.1\ndocker tag 2c4adeb21b4f k8s.gcr.io/etcd:3.3.10\n")])])]),t("p",[t("strong",[a._v("制作镜像")])]),a._v(" "),t("p",[a._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"}},[a._v("制作虚拟机镜像"),t("OutboundLink")],1),a._v(" 的文档")]),a._v(" "),t("h2",{attrs:{id:"初始化api-server"}},[t("a",{staticClass:"header-anchor",attrs:{href:"#初始化api-server","aria-hidden":"true"}},[a._v("#")]),a._v(" 初始化API Server")]),a._v(" "),t("h3",{attrs:{id:"创建-apiserver-的-elb（私网）"}},[t("a",{staticClass:"header-anchor",attrs:{href:"#创建-apiserver-的-elb（私网）","aria-hidden":"true"}},[a._v("#")]),a._v(" 创建 ApiServer 的 ELB（私网）")]),a._v(" "),t("p",[a._v("监听端口：6443 / TCP")]),a._v(" "),t("p",[a._v("后端资源组：包含 apple-master-a-1, apple-master-b-1, apple-master-b-2")]),a._v(" "),t("p",[a._v("后端端口：6443")]),a._v(" "),t("p",[a._v("开启 按源地址保持会话")]),a._v(" "),t("p",[a._v("假设完成创建以后，ELB的 ip 地址为 x.x.x.x")]),a._v(" "),t("h3",{attrs:{id:"初始化第一个master节点"}},[t("a",{staticClass:"header-anchor",attrs:{href:"#初始化第一个master节点","aria-hidden":"true"}},[a._v("#")]),a._v(" 初始化第一个master节点")]),a._v(" "),t("p",[a._v("在 apple-master-a-1机器上执行")]),a._v(" "),t("p",[t("strong",[a._v("配置 apiserver.apple 的域名")])]),a._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"}},[a._v("sudo")]),a._v(" -i\n"),t("span",{pre:!0,attrs:{class:"token builtin class-name"}},[a._v("echo")]),a._v(" "),t("span",{pre:!0,attrs:{class:"token string"}},[a._v('"x.x.x.x apiserver.apple"')]),a._v(" "),t("span",{pre:!0,attrs:{class:"token operator"}},[a._v(">>")]),a._v(" /etc/hosts\n")])])]),t("blockquote",[t("p",[a._v("请替换其中的 x.x.x.x 为您的负载均衡服务器的实际 ip 地址")])]),a._v(" "),t("p",[t("strong",[a._v("创建 /root/k8s/kubeadm-config.yaml")])]),a._v(" "),t("div",{staticClass:"language-yaml extra-class"},[t("pre",{pre:!0,attrs:{class:"language-yaml"}},[t("code",[t("span",{pre:!0,attrs:{class:"token key atrule"}},[a._v("apiVersion")]),t("span",{pre:!0,attrs:{class:"token punctuation"}},[a._v(":")]),a._v(" kubeadm.k8s.io/v1beta1\n"),t("span",{pre:!0,attrs:{class:"token key atrule"}},[a._v("kind")]),t("span",{pre:!0,attrs:{class:"token punctuation"}},[a._v(":")]),a._v(" ClusterConfiguration\n"),t("span",{pre:!0,attrs:{class:"token key atrule"}},[a._v("kubernetesVersion")]),t("span",{pre:!0,attrs:{class:"token punctuation"}},[a._v(":")]),a._v(" v1.14.3\n"),t("span",{pre:!0,attrs:{class:"token key atrule"}},[a._v("controlPlaneEndpoint")]),t("span",{pre:!0,attrs:{class:"token punctuation"}},[a._v(":")]),a._v(" "),t("span",{pre:!0,attrs:{class:"token string"}},[a._v('"apiserver.apple:6443"')]),a._v("\n\n")])])]),t("p",[t("strong",[a._v("初始化 apiserver")])]),a._v(" "),t("div",{staticClass:"language-bash extra-class"},[t("pre",{pre:!0,attrs:{class:"language-bash"}},[t("code",[a._v("kubeadm init --config"),t("span",{pre:!0,attrs:{class:"token operator"}},[a._v("=")]),a._v("/root/k8s/kubeadm-config.yaml --upload-certs\n\n")])])]),t("p",[a._v("执行结果如下图所示：")]),a._v(" "),t("p",[t("img",{attrs:{src:e(337),alt:"image2019-6-10_15-36-29"}})]),a._v(" "),t("p",[t("strong",[a._v("初始化 gitlab-runner 用户的 kubectl 配置")])]),a._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"}},[a._v("rm")]),a._v(" -rf /home/gitlab-runner/.kube/\n"),t("span",{pre:!0,attrs:{class:"token function"}},[a._v("mkdir")]),a._v(" /home/gitlab-runner/.kube/\n"),t("span",{pre:!0,attrs:{class:"token function"}},[a._v("cp")]),a._v(" -i /etc/kubernetes/admin.conf /home/gitlab-runner/.kube/config\n"),t("span",{pre:!0,attrs:{class:"token function"}},[a._v("chown")]),a._v(" -R gitlab-runner:gitlab-runner /home/gitlab-runner/.kube\n")])])]),t("p",[t("strong",[a._v("安装 calico")])]),a._v(" "),t("p",[a._v("（需要在安全组–ServerFarm需要为集群服务器器端口6443建立安全组规则）")]),a._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"}},[a._v("su")]),a._v(" - gitlab-runner\nkubectl apply -f "),t("span",{pre:!0,attrs:{class:"token punctuation"}},[a._v("\\")]),a._v("\n\t\thttps://docs.projectcalico.org/v3.6/getting-started/kubernetes/installation/hosted/kubernetes-datastore/calico-networking/1.7/calico.yaml\n")])])]),t("blockquote",[t("p",[a._v("安装calico， 请参考https://docs.projectcalico.org/v3.6/getting-started/kubernetes/")])]),a._v(" "),t("p",[t("strong",[a._v("等待calico安装就绪：")])]),a._v(" "),t("p",[a._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")]),a._v(" "),t("div",{staticClass:"language-sh extra-class"},[t("pre",{pre:!0,attrs:{class:"language-sh"}},[t("code",[t("span",{pre:!0,attrs:{class:"token function"}},[a._v("watch")]),a._v(" kubectl get pod -n kube-system\n")])])]),t("h3",{attrs:{id:"初始化第二、三个master节点"}},[t("a",{staticClass:"header-anchor",attrs:{href:"#初始化第二、三个master节点","aria-hidden":"true"}},[a._v("#")]),a._v(" 初始化第二、三个master节点")]),a._v(" "),t("p",[a._v("在 apple-master-b-1 和 apple-master-b-2 机器上执行")]),a._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"}},[a._v("sudo")]),a._v(" -i\n"),t("span",{pre:!0,attrs:{class:"token builtin class-name"}},[a._v("echo")]),a._v(" "),t("span",{pre:!0,attrs:{class:"token string"}},[a._v('"x.x.x.x apiserver.apple"')]),a._v(" "),t("span",{pre:!0,attrs:{class:"token operator"}},[a._v(">>")]),a._v(" /etc/hosts\n")])])]),t("p",[a._v("执行 （以下命令行在初始化 apple-master-a-1 时，被打印在控制台上，执行时应该使用控制台打印出的命令参数）")]),a._v(" "),t("div",{staticClass:"language-bash extra-class"},[t("pre",{pre:!0,attrs:{class:"language-bash"}},[t("code",[a._v("kubeadm "),t("span",{pre:!0,attrs:{class:"token function"}},[a._v("join")]),a._v(" apiserver.apple:6443 --token ejwx62.vqwog6il5p83uk7y "),t("span",{pre:!0,attrs:{class:"token punctuation"}},[a._v("\\")]),a._v("\n--discovery-token-ca-cert-hash sha256:6f7a8e40a810323672de5eee6f4d19aa2dbdb38411845a1bf5dd63485c43d303 "),t("span",{pre:!0,attrs:{class:"token punctuation"}},[a._v("\\")]),a._v("\n--experimental-control-plane --certificate-key 70eb87e62f052d2d5de759969d5b42f372d0ad798f98df38f7fe73efdf63a13c\n")])])]),t("h3",{attrs:{id:"检查-apiserver初始化结果"}},[t("a",{staticClass:"header-anchor",attrs:{href:"#检查-apiserver初始化结果","aria-hidden":"true"}},[a._v("#")]),a._v(" 检查 apiserver初始化结果")]),a._v(" "),t("p",[a._v("在第一个master节点 apple-master-a-1 上执行")]),a._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"}},[a._v("sudo")]),a._v(" -i\n"),t("span",{pre:!0,attrs:{class:"token function"}},[a._v("su")]),a._v(" - gitlab-runner\nkubectl 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"}},[a._v("#")]),a._v(" 初始化 worker节点")]),a._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"}},[a._v("#")]),a._v(" 获得 join命令参数")]),a._v(" "),t("p",[t("strong",[a._v("在第一个master节点 apple-master-a-1 节点执行")])]),a._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"}},[a._v("sudo")]),a._v(" -i\nkubeadm token create --print-join-command\n")])])]),t("p",[a._v("可获取kubeadm join 命令及参数，如下所示")]),a._v(" "),t("div",{staticClass:"language-bash extra-class"},[t("pre",{pre:!0,attrs:{class:"language-bash"}},[t("code",[a._v("kubeadm "),t("span",{pre:!0,attrs:{class:"token function"}},[a._v("join")]),a._v(" apiserver.apple: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"}},[a._v("#")]),a._v(" 初始化worker")]),a._v(" "),t("p",[t("strong",[a._v("针对所有的 worker 节点执行")])]),a._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"}},[a._v("sudo")]),a._v(" -i\n"),t("span",{pre:!0,attrs:{class:"token builtin class-name"}},[a._v("echo")]),a._v(" "),t("span",{pre:!0,attrs:{class:"token string"}},[a._v('"x.x.x.x apiserver.apple"')]),a._v(" "),t("span",{pre:!0,attrs:{class:"token operator"}},[a._v(">>")]),a._v(" /etc/hosts\nkubeadm "),t("span",{pre:!0,attrs:{class:"token function"}},[a._v("join")]),a._v(" apiserver.apple:6443 --token mpfjma.4vjjg8flqihor4vt --discovery-token-ca-cert-hash 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"),t("blockquote",[t("p",[a._v("正常情况下，您无需移除 worker 节点")])]),a._v(" "),t("p",[a._v("在准备移除的 worker 节点上执行")]),a._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"}},[a._v("sudo")]),a._v(" -i\t\nkubeadm reset\n")])])]),t("p",[a._v("在第一个 master 节点 apple-master-a-1 上执行")]),a._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"}},[a._v("sudo")]),a._v(" -i\n"),t("span",{pre:!0,attrs:{class:"token function"}},[a._v("su")]),a._v(" - gitlab-runner\nkubectl delete node apple-worker-x-x\n")])])]),t("blockquote",[t("ul",[t("li",[a._v("将 apple-worker-x-x 替换为要移除的 worker 节点的名字")]),a._v(" "),t("li",[a._v("worker 节点的名字可以通过在第一个 master 节点 apple-master-a-1 上执行 kubectl get nodes 命令获得")])])]),a._v(" "),t("h2",{attrs:{id:"安装-ingress-controller"}},[t("a",{staticClass:"header-anchor",attrs:{href:"#安装-ingress-controller","aria-hidden":"true"}},[a._v("#")]),a._v(" 安装 Ingress Controller")]),a._v(" "),t("blockquote",[t("p",[a._v("ingress官方文档：https://kubernetes.io/docs/concepts/services-networking/ingress/")]),a._v(" "),t("p",[a._v("Ingress Controllers官网介绍："),t("a",{attrs:{href:"https://kubernetes.io/docs/concepts/services-networking/ingress-controllers/",target:"_blank",rel:"noopener noreferrer"}},[a._v("https://kubernetes.io/docs/concepts/services-networking/ingress-controllers/"),t("OutboundLink")],1)]),a._v(" "),t("p",[a._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")]),a._v(" "),t("p",[a._v("kubernetes支持多种Ingress Controllers，本文推荐使用")]),a._v(" "),t("p",[a._v("https://github.com/nginxinc/kubernetes-ingress")])]),a._v(" "),t("h3",{attrs:{id:"在-apple-master-a-1-上执行"}},[t("a",{staticClass:"header-anchor",attrs:{href:"#在-apple-master-a-1-上执行","aria-hidden":"true"}},[a._v("#")]),a._v(" 在 apple-master-a-1 上执行")]),a._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"}},[a._v("su")]),a._v(" - gitlab-runner\nkubectl apply -f https://raw.githubusercontent.com/eip-work/eip-monitor-repository/master/dashboard/nginx-ingress.yaml\n")])])]),t("h3",{attrs:{id:"在iaas云控制台完成如下配置（公网elb）"}},[t("a",{staticClass:"header-anchor",attrs:{href:"#在iaas云控制台完成如下配置（公网elb）","aria-hidden":"true"}},[a._v("#")]),a._v(" 在IaaS云控制台完成如下配置（"),t("strong",[a._v("公网ELB")]),a._v("）")]),a._v(" "),t("p",[a._v("创建负载均衡 ELB：")]),a._v(" "),t("p",[a._v("​ 监听器 1：80 / TCP， SOURCE_ADDRESS 会话保持")]),a._v(" "),t("p",[a._v("​ 服务器资源池 1： apple-worker-x-x 的所有节点的 80端口")]),a._v(" "),t("p",[a._v("​ 监听器 2：443 / TCP， SOURCE_ADDRESS 会话保持")]),a._v(" "),t("p",[a._v("​ 服务器资源池 2： apple-worker-x-x 的所有节点的443端口")]),a._v(" "),t("p",[a._v("假设刚创建的负载均衡 ELB 的 IP 地址为： z.z.z.z")]),a._v(" "),t("h3",{attrs:{id:"配置域名解析"}},[t("a",{staticClass:"header-anchor",attrs:{href:"#配置域名解析","aria-hidden":"true"}},[a._v("#")]),a._v(" 配置域名解析")]),a._v(" "),t("p",[a._v("将域名 *.apple.yourdomain.com 解析到地址负载均衡服务器 的 IP 地址 z.z.z.z")]),a._v(" "),t("h3",{attrs:{id:"验证配置"}},[t("a",{staticClass:"header-anchor",attrs:{href:"#验证配置","aria-hidden":"true"}},[a._v("#")]),a._v(" 验证配置")]),a._v(" "),t("p",[a._v("在浏览器访问 a.apple.yourdomain.com，将得到 404 NotFound 错误页面")])])},[],!1,null,null,null);s.default=r.exports}}]); \ No newline at end of file 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"),s("p",[s("img",{attrs:{src:r(341),alt:"image-20190722165648180"}})]),e._v(" "),s("p",[e._v("上图中各概念与 Kuboard 工作负载编辑器界面的映射关系如下：")]),e._v(" "),s("p",[s("img",{attrs:{src:r(342),alt:"image-20190722162249531"}})]),e._v(" "),s("h3",{attrs:{id:"_1-基本信息"}},[s("a",{staticClass:"header-anchor",attrs:{href:"#_1-基本信息","aria-hidden":"true"}},[e._v("#")]),e._v(" 1. 基本信息")]),e._v(" "),s("p",[e._v("基本信息对应到 Kubernetes 的 Workload Controller，当前 Kuboard 工作负载编辑器已经支持了使用频率最高的几类 Workload Controller ：")]),e._v(" "),s("ul",[s("li",[e._v("Deployment")]),e._v(" "),s("li",[e._v("StatefulSet")]),e._v(" "),s("li",[e._v("DaemonSet")])]),e._v(" "),s("blockquote",[s("p",[e._v("Kuboard 将陆续支持其他低频使用的 Controller: Garbage Collection, TTL Controller, Jobs, Cron Job。")])]),e._v(" "),s("p",[e._v("Kubernetes Workload Controller 主要用于：")]),e._v(" "),s("ul",[s("li",[e._v("根据容器组模板的定义，创建和管理多个容器组")]),e._v(" "),s("li",[e._v("处理容器组的复制和上线")]),e._v(" "),s("li",[e._v("在集群范围内提供自修复能力")])]),e._v(" "),s("blockquote",[s("p",[e._v("例如：Workload Controller 起初在节点 A 上创建并运行了一个容器组 pod_a，当节点 A 出现故障不能正常工作时，Workload Controller 可以自动地在其他可用的节点上运行一个完全相同的容器组实例 pod_a' 以替代 pod_a。")]),e._v(" "),s("p",[e._v("不同类型的 Workload Controller 在处理容器组时，会有各自不同的行为。")])]),e._v(" "),s("blockquote",[s("p",[e._v("请参考 https://kubernetes.io/docs/concepts/workloads/pods/pod-overview/#pods-and-controllers")])]),e._v(" "),s("p",[e._v("基本信息编辑器的界面如下图所示：")]),e._v(" "),s("p",[s("img",{attrs:{src:r(343),alt:"image-20190722172356943"}})]),e._v(" "),s("table",[s("thead",[s("tr",[s("th",[e._v("字段名称")]),e._v(" "),s("th",[e._v("字段描述")])])]),e._v(" "),s("tbody",[s("tr",[s("td",[e._v("服务类型")]),e._v(" "),s("td",[e._v("即工作负载类型，"),s("br"),e._v("当前支持： Deployment、StatefulSet、DaemonSet")])]),e._v(" "),s("tr",[s("td",[e._v("服务分层")]),e._v(" "),s("td",[e._v("决定了 Kuboard 将该工作负载展示在哪一个分层，同时，也确定了该工作负载名称的前缀，可选项有："),s("br"),e._v("* 展现层 web、网关层 gateway、服务层 svc、持久层 db、中间件层 cloud、监控层 monitor；"),s("br"),e._v("* 默认层当前不可选择")])]),e._v(" "),s("tr",[s("td",[e._v("标签")]),e._v(" "),s("td",[e._v("用于确定 Service 的 labelSelector、Controller 的 labels、容器组的 labels")])]),e._v(" "),s("tr",[s("td",[e._v("服务描述")]),e._v(" "),s("td",[e._v("展示在 Kuboard 界面上的一段描述信息")])]),e._v(" "),s("tr",[s("td",[e._v("副本数量")]),e._v(" "),s("td",[e._v("对于 Deployment 和 StatefulSet 可以填写，决定了该控制器应该维持的容器组副本的数量")])])])]),e._v(" "),s("h3",{attrs:{id:"_2-数据卷"}},[s("a",{staticClass:"header-anchor",attrs:{href:"#_2-数据卷","aria-hidden":"true"}},[e._v("#")]),e._v(" 2. 数据卷")]),e._v(" "),s("p",[e._v("​\t\t容器每次启动时，从镜像中初始化所有文件，后续对文件系统的修改、新增、删除操作的结果都是不能持久化的。当容器崩溃时， kubelet 重启该容器，但是原容器已经做的修改将丢失，因为每次启动容器，都是从镜像中初始化；此外，多个容器运行在同一个容器组中时，通常伴随着在不同容器之间共享文件的需求。")]),e._v(" "),s("p",[e._v("​\t\tKubernetes的抽象出了数据卷 Volume 的概念，以解决上述的问题。")]),e._v(" "),s("p",[e._v("​\t\t"),s("strong",[e._v("Kuboard 目前支持如下类型的数据卷：")])]),e._v(" "),s("ul",[s("li",[e._v("NFS")]),e._v(" "),s("li",[e._v("存储卷声明")]),e._v(" "),s("li",[e._v("emptyDir")]),e._v(" "),s("li",[e._v("配置 ConfigMap")]),e._v(" "),s("li",[e._v("Secrets")])]),e._v(" "),s("blockquote",[s("p",[e._v("Kubernetes 支持的数据卷类型，请参考：https://kubernetes.io/docs/concepts/storage/volumes/#types-of-volumes")]),e._v(" "),s("p",[e._v("Kuboard 认为当前支持的数据卷类型已经满足绝大多数应用场景，目前正在添加对更多类型数据卷的支持。")])]),e._v(" "),s("p",[e._v("​\t\t容器组中的不同容器都可以通过挂载点引用该容器组加载的数据卷。Kuboard 工作负载编辑中，使用如下界面定义数据卷：")]),e._v(" "),s("p",[s("img",{attrs:{src:r(344),alt:"image-20190722182005060"}})]),e._v(" "),s("table",[s("thead",[s("tr",[s("th",[e._v("字段名称")]),e._v(" "),s("th",[e._v("说明")])])]),e._v(" "),s("tbody",[s("tr",[s("td",[e._v("数据卷名称")]),e._v(" "),s("td",[e._v("如图中的 "),s("em",[s("strong",[e._v("example-data")])]),e._v(" 、 "),s("em",[s("strong",[e._v("empty-dir")])])])]),e._v(" "),s("tr",[s("td",[e._v("数据卷类型")]),e._v(" "),s("td")]),e._v(" "),s("tr",[s("td",[e._v("数据卷详细信息")]),e._v(" "),s("td",[e._v("不同类型的数据卷需要填写的信息不尽相同，例如"),s("br"),e._v("存储卷声明，需要选择事先已经在名称空间中创建好的存储卷声明"),s("br"),e._v("NFS，需要填写 NFS Server 的地址，以及 NFS Path")])])])]),e._v(" "),s("h3",{attrs:{id:"_3-身份信息"}},[s("a",{staticClass:"header-anchor",attrs:{href:"#_3-身份信息","aria-hidden":"true"}},[e._v("#")]),e._v(" 3. 身份信息")]),e._v(" "),s("p",[e._v("身份信息区域主要为容器组定义两类信息：")]),e._v(" "),s("ul",[s("li",[e._v("imagePullSecrets，容器组调用镜像仓库接口抓取镜像时所使用的用户名密码。如果您使用了私有镜像仓库，您需要在此指定镜像仓库的用户名密码；如果您使用 docker 公共仓库，则无需填写 imagePullSecrets")]),e._v(" "),s("li",[e._v("ServiceAccount，容器组调用 kubernetes apiserver 时，所使用的身份信息")])]),e._v(" "),s("p",[e._v("Kuboard 工作负载编辑器中关于身份信息的编辑界面如下所示：")]),e._v(" "),s("p",[s("img",{attrs:{src:r(345),alt:"image-20190722183329825"}})]),e._v(" "),s("h3",{attrs:{id:"_4-容器"}},[s("a",{staticClass:"header-anchor",attrs:{href:"#_4-容器","aria-hidden":"true"}},[e._v("#")]),e._v(" 4. 容器")]),e._v(" "),s("p",[e._v("容器是我们真正应用程序镜像被加载和运行的地方，按照 Kubernetes 的设计，一个容器组 Pod 中可以包含多个容器 Container，这些容器被分为两类：")]),e._v(" "),s("ul",[s("li",[e._v("初始化容器\n"),s("ul",[s("li",[e._v("初始化容器总是执行后结束执行")]),e._v(" "),s("li",[e._v("初始化容器按其定义的顺序执行，前一个初始化容器执行结束后，才开始后一个初始化容器的执行")]),e._v(" "),s("li",[e._v("只有初始化容器执行成功后，容器组才启动工作容器")]),e._v(" "),s("li",[e._v("请参考 https://kubernetes.io/docs/concepts/workloads/pods/init-containers/")])])]),e._v(" "),s("li",[e._v("工作容器\n"),s("ul",[s("li",[e._v("容器组可以包含一个或多个工作容器")]),e._v(" "),s("li",[e._v("https://kubernetes.io/docs/concepts/workloads/pods/pod-overview")])])])]),e._v(" "),s("p",[e._v("Kuborad中，定义容器的界面如下图所示：")]),e._v(" "),s("p",[s("img",{attrs:{src:r(346),alt:"image-20190722183750444"}})]),e._v(" "),s("p",[s("img",{attrs:{src:r(347),alt:"image-20190722184516447"}})]),e._v(" "),s("h3",{attrs:{id:"_5-访问方式"}},[s("a",{staticClass:"header-anchor",attrs:{href:"#_5-访问方式","aria-hidden":"true"}},[e._v("#")]),e._v(" 5. 访问方式")]),e._v(" "),s("p",[e._v("​\t\t访问方式，即 Kubernetes Service。")]),e._v(" "),s("blockquote",[s("p",[e._v("请参考： https://kubernetes.io/docs/concepts/services-networking/service/")])]),e._v(" "),s("p",[e._v("​\t\tKuboard 中，支持 ClusterIP（集群内访问） 以及 NodePort（VPC 内访问） 两种 Service 访问方式，您也可以不为该工作负载定义 Service 访问方式。访问方式的界面如下所示：")]),e._v(" "),s("p",[s("img",{attrs:{src:r(348),alt:"image-20190722184943431"}})]),e._v(" "),s("h3",{attrs:{id:"_6-互联网入口"}},[s("a",{staticClass:"header-anchor",attrs:{href:"#_6-互联网入口","aria-hidden":"true"}},[e._v("#")]),e._v(" 6. 互联网入口")]),e._v(" "),s("p",[e._v("​\t\t互联网入口，即 Kubernetes Ingress。")]),e._v(" "),s("blockquote",[s("p",[e._v("请参考： https://kubernetes.io/docs/concepts/services-networking/ingress/")])]),e._v(" "),s("p",[e._v("​\t\tKuboard 并不限定您使用何种类型的 "),s("a",{attrs:{href:"https://kubernetes.io/docs/concepts/services-networking/ingress-controllers/",target:"_blank",rel:"noopener noreferrer"}},[e._v("Ingress Controller"),s("OutboundLink")],1),e._v("， 但是 "),s("a",{attrs:{href:"/install/install-k8s"}},[e._v("安装 Kubernetes 用于测试")]),e._v(" 文档中，推荐使用的 Ingress Controller 是 "),s("a",{attrs:{href:"https://github.com/nginxinc/kubernetes-ingress",target:"_blank",rel:"noopener noreferrer"}},[e._v("Nginx-Ingress"),s("OutboundLink")],1),e._v("。")]),e._v(" "),s("p",[e._v("​\t\t在您使用 Nginx-Ingress 的情况下，要想确保您能按照互联网入口中定义的域名访问您的服务，请确保以下两点：")]),e._v(" "),s("ul",[s("li",[e._v("域名解析指向 Kubernetes 集群中 Worker 节点对应的负载均衡的 IP 地址\n"),s("ul",[s("li",[e._v("如果是测试环境，也可以只指向其中一台 Worker 节点的 IP 地址")])])]),e._v(" "),s("li",[e._v("通过该域名，可以访问 Worker 节点的 80 端口\n"),s("ul",[s("li",[e._v("如果您启用了 HTTPS，请同时确保通过该域名可以访问 Worker 节点的 443 端口")])])])]),e._v(" "),s("p",[e._v("​\t\tKuboard 中，定义互联网入口的界面如下所示：")]),e._v(" "),s("p",[s("img",{attrs:{src:r(349),alt:"image-20190722185113938"}})])])},[],!1,null,null,null);t.default=v.exports}}]); \ No newline at end of file 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Kuboard

Kubernetes + DevOps

如何继承 DevOps ？

文档准备好后，请通知我

Copyright © 2019-present Huanqing Shao
- + diff --git a/docs/guide/cluster/computing.html b/docs/guide/cluster/computing.html index 5f96fad..e3188e1 100644 --- a/docs/guide/cluster/computing.html +++ b/docs/guide/cluster/computing.html @@ -7,7 +7,7 @@ - + @@ -21,6 +21,6 @@ →

Copyright © 2019-present Huanqing Shao
- + diff --git a/docs/guide/cluster/namespace.html b/docs/guide/cluster/namespace.html index c26e3ec..82d950e 100644 --- a/docs/guide/cluster/namespace.html +++ b/docs/guide/cluster/namespace.html @@ -7,7 +7,7 @@ - + @@ -20,6 +20,6 @@ →

Copyright © 2019-present Huanqing Shao
- + diff --git a/docs/guide/cluster/storage.html b/docs/guide/cluster/storage.html index 55c8bbb..32d400a 100644 --- a/docs/guide/cluster/storage.html +++ b/docs/guide/cluster/storage.html @@ -7,7 +7,7 @@ - + @@ -22,6 +22,6 @@ sudo mount -t nfs -o vers=4,minorversion=0,noresvport Copyright © 2019-present Huanqing Shao
- + diff --git a/docs/guide/diagonize/events.html b/docs/guide/diagonize/events.html index 3ec3c7a..cef4f78 100644 --- a/docs/guide/diagonize/events.html +++ b/docs/guide/diagonize/events.html @@ -7,7 +7,7 @@ - + @@ -20,6 +20,6 @@ →

Copyright © 2019-present Huanqing Shao
- + diff --git a/docs/guide/diagonize/logs.html b/docs/guide/diagonize/logs.html index c035e2f..80501db 100644 --- a/docs/guide/diagonize/logs.html +++ b/docs/guide/diagonize/logs.html @@ -7,7 +7,7 @@ - + @@ -20,6 +20,6 @@ →

Copyright © 2019-present Huanqing Shao
- + diff --git a/docs/guide/diagonize/port-forward.html b/docs/guide/diagonize/port-forward.html index ef755e2..5a4e306 100644 --- a/docs/guide/diagonize/port-forward.html +++ b/docs/guide/diagonize/port-forward.html @@ -7,7 +7,7 @@ - + @@ -20,6 +20,6 @@ →

Copyright © 2019-present Huanqing Shao
- + diff --git a/docs/guide/example/busybox.html b/docs/guide/example/busybox.html index 6c9a9e5..af60eab 100644 --- a/docs/guide/example/busybox.html +++ b/docs/guide/example/busybox.html @@ -7,7 +7,7 @@ - + @@ -20,6 +20,6 @@ →

Copyright © 2019-present Huanqing Shao
- + diff --git a/docs/guide/example/import.html b/docs/guide/example/import.html index 4b1efe5..a328e4b 100644 --- a/docs/guide/example/import.html +++ b/docs/guide/example/import.html @@ -7,7 +7,7 @@ - + @@ -37,6 +37,6 @@ com.netflix.discovery.shared.transport.TransportException: Cannot execute reques →

Copyright © 2019-present Huanqing Shao
- + diff --git a/docs/guide/example/monitor.html b/docs/guide/example/monitor.html index 843c5bb..7e877a3 100644 --- a/docs/guide/example/monitor.html +++ b/docs/guide/example/monitor.html @@ -7,7 +7,7 @@ - + @@ -21,6 +21,6 @@ →

Copyright © 2019-present Huanqing Shao
- + diff --git a/docs/guide/index.html b/docs/guide/index.html index c945300..a6a64fd 100644 --- a/docs/guide/index.html +++ b/docs/guide/index.html @@ -7,7 +7,7 @@ - + @@ -16,6 +16,6 @@ →

Copyright © 2019-present Huanqing Shao
- + diff --git a/docs/guide/monitor/apis.html b/docs/guide/monitor/apis.html index c336aa4..c227d96 100644 --- a/docs/guide/monitor/apis.html +++ b/docs/guide/monitor/apis.html @@ -7,7 +7,7 @@ - + @@ -16,6 +16,6 @@

Copyright © 2019-present Huanqing Shao
- + diff --git a/docs/guide/monitor/index.html b/docs/guide/monitor/index.html index 2538654..89f3d4b 100644 --- a/docs/guide/monitor/index.html +++ b/docs/guide/monitor/index.html @@ -7,7 +7,7 @@ - + @@ -20,6 +20,6 @@ →

Copyright © 2019-present Huanqing Shao
- + diff --git a/docs/guide/namespace/adjustion.html b/docs/guide/namespace/adjustion.html index 6e5d139..f21feb3 100644 --- a/docs/guide/namespace/adjustion.html +++ b/docs/guide/namespace/adjustion.html @@ -7,7 +7,7 @@ - + @@ -21,6 +21,6 @@ →

Copyright © 2019-present Huanqing Shao
- + diff --git a/docs/guide/namespace/configMap.html b/docs/guide/namespace/configMap.html index 41e4a1b..a441ad8 100644 --- a/docs/guide/namespace/configMap.html +++ b/docs/guide/namespace/configMap.html @@ -7,7 +7,7 @@ - + @@ -20,6 +20,6 @@ →

Copyright © 2019-present Huanqing Shao
- + diff --git a/docs/guide/namespace/index.html b/docs/guide/namespace/index.html index cf9a1a4..ba731c4 100644 --- a/docs/guide/namespace/index.html +++ b/docs/guide/namespace/index.html @@ -7,11 +7,11 @@ - +
Kuboard

应用管理

创建工作负载

删除工作负载

伸缩

升级工作负载版本

环境迁移

导出

导入

Copyright © 2019-present Huanqing Shao
- + diff --git a/docs/guide/namespace/multi-env.html b/docs/guide/namespace/multi-env.html index a5f3b90..a388d15 100644 --- a/docs/guide/namespace/multi-env.html +++ b/docs/guide/namespace/multi-env.html @@ -7,7 +7,7 @@ - + @@ -42,6 +42,6 @@ →

Copyright © 2019-present Huanqing Shao
- + diff --git a/docs/guide/namespace/pvc.html b/docs/guide/namespace/pvc.html index af138a5..794ca5d 100644 --- a/docs/guide/namespace/pvc.html +++ b/docs/guide/namespace/pvc.html @@ -7,7 +7,7 @@ - + @@ -20,6 +20,6 @@ →

Copyright © 2019-present Huanqing Shao
- + diff --git a/docs/guide/namespace/secrets.html b/docs/guide/namespace/secrets.html index 468f0f0..ca68bc4 100644 --- a/docs/guide/namespace/secrets.html +++ b/docs/guide/namespace/secrets.html @@ -7,7 +7,7 @@ - + @@ -20,6 +20,6 @@ →

Copyright © 2019-present Huanqing Shao
- + diff --git a/docs/guide/namespace/workload.html b/docs/guide/namespace/workload.html index 613545c..7199995 100644 --- a/docs/guide/namespace/workload.html +++ b/docs/guide/namespace/workload.html @@ -7,7 +7,7 @@ - + @@ -20,6 +20,6 @@ →

Copyright © 2019-present Huanqing Shao
- + diff --git a/docs/index.html b/docs/index.html index 3f1d1ea..7df60e9 100644 --- a/docs/index.html +++ b/docs/index.html @@ -7,7 +7,7 @@ - + @@ -18,6 +18,6 @@ 开始使用 →

降低 Kubernetes 门槛

创建工作负载，导出/导入配置，批量调整镜像版本，问题诊断

直观显示微服务架构

展现层/网关层/服务层/持久层/中间件层/监控层

上下文关联监控

资源层监控/中间件层监控/链路层监控

Copyright © 2019-present Huanqing Shao
- + diff --git a/docs/install/index.html b/docs/install/index.html index 531be1c..0ed89fd 100644 --- a/docs/install/index.html +++ b/docs/install/index.html @@ -7,11 +7,11 @@ - +
Kuboard

概述

已经有 Kubernetes 集群，请直接 安装 Kuboard。

还没有 Kubernetes 集群：


在线提问

Kuboard 兴趣群二维码

Copyright © 2019-present Huanqing Shao
- + diff --git a/docs/install/install-common-ingress.html b/docs/install/install-common-ingress.html index cbdd9d2..2217cbb 100644 --- a/docs/install/install-common-ingress.html +++ b/docs/install/install-common-ingress.html @@ -7,13 +7,13 @@ - +
Kuboard

安装 Ingress Controller

ingress官方文档：https://kubernetes.io/docs/concepts/services-networking/ingress/

Ingress Controllers官网介绍：https://kubernetes.io/docs/concepts/services-networking/ingress-controllers/

本文中使用如下部署方式：https://kubernetes.github.io/ingress-nginx/deploy/baremetal/#using-a-self-provisioned-edge

kubernetes支持多种Ingress Controllers，本文推荐使用

https://github.com/nginxinc/kubernetes-ingress

在 apple-master-a-1 上执行

su - gitlab-runner
 kubectl apply -f https://raw.githubusercontent.com/eip-work/eip-monitor-repository/master/dashboard/nginx-ingress.yaml

在IaaS云控制台完成如下配置（公网ELB）

创建负载均衡 ELB：

​ 监听器 1：80 / TCP， SOURCE_ADDRESS 会话保持

​ 服务器资源池 1： apple-worker-x-x 的所有节点的 80端口

​ 监听器 2：443 / TCP， SOURCE_ADDRESS 会话保持

​ 服务器资源池 2： apple-worker-x-x 的所有节点的443端口

假设刚创建的负载均衡 ELB 的 IP 地址为： z.z.z.z

配置域名解析

将域名 *.apple.yourdomain.com 解析到地址负载均衡服务器 的 IP 地址 z.z.z.z

验证配置

在浏览器访问 a.apple.yourdomain.com，将得到 404 NotFound 错误页面

Copyright © 2019-present Huanqing Shao
- + diff --git a/docs/install/install-common-vm.html b/docs/install/install-common-vm.html index 9fb90f7..db63a95 100644 --- a/docs/install/install-common-vm.html +++ b/docs/install/install-common-vm.html @@ -7,7 +7,7 @@ - + @@ -70,6 +70,6 @@ docker tag da86e6ba6ca1 k8s.gcr.io/pause:3.1 docker tag eb516548c180 k8s.gcr.io/coredns:1.3.1 docker tag 2c4adeb21b4f k8s.gcr.io/etcd:3.3.10

制作镜像

请参考阿里云基于ECS 制作虚拟机镜像 的文档

Copyright © 2019-present Huanqing Shao
- + diff --git a/docs/install/install-dashboard copy.html b/docs/install/install-dashboard copy.html index 6ba247a..d1ecae5 100644 --- a/docs/install/install-dashboard copy.html +++ b/docs/install/install-dashboard copy.html @@ -7,13 +7,13 @@ - +
Kuboard

安装 Kuboard

前提

安装 Kuboard 时，假设您已经有一个 Kubernetes 集群

如果没有 Kubernetes 集群：

碰到问题？ 在线提问

Kuboard 兴趣群二维码

兼容性

Kubernetes 版本 Kuboard 版本 兼容性 说明
v1.15 v1.0.0-beta.13 😄 已验证
v1.14 v1.0.0-beta.13 😄 已验证
v1.13 v1.0.0-beta.13 😄 已验证
v1.12 v1.0.0-beta.13 😐 Kubernetes Api v1.12 尚不支持 dryRun，
忽略Kuboard在执行命令时的参数校验错误，可正常工作
v1.11 v1.0.0-beta.13 😐 同上

安装

获取并修改yaml文件

wget https://raw.githubusercontent.com/eip-work/eip-monitor-repository/master/dashboard/kuboard.yaml

修改文件 Kuboard.yaml 中 Ingress 的 host 为 kuboard.yourclustername.yourdomain.com

执行安装

kubectl apply -f kuboard.yaml

获取 Token

您可以获得管理员用户、只读用户的Token

访问 Kuboard

您可以通过NodePort、port-forward、域名三种方式当中的任意一种访问 Kuboard

下一步

Copyright © 2019-present Huanqing Shao
- + diff --git a/docs/install/install-dashboard-diagonize-kube-dns.html b/docs/install/install-dashboard-diagonize-kube-dns.html index bd604b3..65ca9da 100644 --- a/docs/install/install-dashboard-diagonize-kube-dns.html +++ b/docs/install/install-dashboard-diagonize-kube-dns.html @@ -7,11 +7,11 @@ - +
Kuboard

创建 kube-dns Service

Copyright © 2019-present Huanqing Shao
- + diff --git a/docs/install/install-dashboard-diagonize.html b/docs/install/install-dashboard-diagonize.html index 94c5e7e..d847ed2 100644 --- a/docs/install/install-dashboard-diagonize.html +++ b/docs/install/install-dashboard-diagonize.html @@ -7,7 +7,7 @@ - + @@ -31,6 +31,6 @@ kuboard-7bb8d57995-nkqzw 1

如果您得到如下错误信息: host not found in resolver "kube-dns.kube-system.svc.cluster.local"

2019/07/26 23:09:33 [emerg] 1#1: host not found in resolver "kube-dns.kube-system.svc.cluster.local" in /etc/nginx/conf.d/nginx.80.conf:36
 nginx: [emerg] host not found in resolver "kube-dns.kube-system.svc.cluster.local" in /etc/nginx/conf.d/nginx.80.conf:36

请 创建 kube-dns Service

Copyright © 2019-present Huanqing Shao
- + diff --git a/docs/install/install-dashboard-upgrade.html b/docs/install/install-dashboard-upgrade.html index f1dec9c..d9928a7 100644 --- a/docs/install/install-dashboard-upgrade.html +++ b/docs/install/install-dashboard-upgrade.html @@ -7,7 +7,7 @@ - + @@ -16,6 +16,6 @@

Copyright © 2019-present Huanqing Shao
- + diff --git a/docs/install/install-dashboard.html b/docs/install/install-dashboard.html index 9ea4f67..4813d50 100644 --- a/docs/install/install-dashboard.html +++ b/docs/install/install-dashboard.html @@ -7,7 +7,7 @@ - + @@ -20,6 +20,6 @@ →

Copyright © 2019-present Huanqing Shao
- + diff --git a/docs/install/install-k8s.html b/docs/install/install-k8s.html index 608a6f4..835673c 100644 --- a/docs/install/install-k8s.html +++ b/docs/install/install-k8s.html @@ -7,7 +7,7 @@ - + @@ -136,6 +136,6 @@ kubectl apply -f https://raw.githubusercontent.com/eip-work/eip-monitor-reposito →

Copyright © 2019-present Huanqing Shao
- + diff --git a/docs/install/install-kubectl.html b/docs/install/install-kubectl.html index 4f1cfa6..740562e 100644 --- a/docs/install/install-kubectl.html +++ b/docs/install/install-kubectl.html @@ -7,7 +7,7 @@ - + @@ -40,6 +40,6 @@ →

Copyright © 2019-present Huanqing Shao
- + diff --git a/docs/install/install-kubernetes.html b/docs/install/install-kubernetes.html index ada416b..c17d40f 100644 --- a/docs/install/install-kubernetes.html +++ b/docs/install/install-kubernetes.html @@ -7,7 +7,7 @@ - + @@ -119,6 +119,6 @@ kubectl apply -f https://raw.githubusercontent.com/eip-work/eip-monitor-reposito →

Copyright © 2019-present Huanqing Shao
- + diff --git a/docs/micro-service/spring-cloud/cloud-eureka.html b/docs/micro-service/spring-cloud/cloud-eureka.html index 68ec622..5a2dbd1 100644 --- a/docs/micro-service/spring-cloud/cloud-eureka.html +++ b/docs/micro-service/spring-cloud/cloud-eureka.html @@ -7,7 +7,7 @@ - + @@ -16,6 +16,6 @@

Copyright © 2019-present Huanqing Shao
- + diff --git a/docs/micro-service/spring-cloud/index.html b/docs/micro-service/spring-cloud/index.html index 24cd1d4..9977562 100644 --- a/docs/micro-service/spring-cloud/index.html +++ b/docs/micro-service/spring-cloud/index.html @@ -7,7 +7,7 @@ - + @@ -16,6 +16,6 @@ →

Copyright © 2019-present Huanqing Shao
- + diff --git a/docs/overview/change-log-on-the-way.html b/docs/overview/change-log-on-the-way.html index 7617457..9e7b6f4 100644 --- a/docs/overview/change-log-on-the-way.html +++ b/docs/overview/change-log-on-the-way.html @@ -7,11 +7,11 @@ - +
Kuboard

v1.0.0-beta.13

发布日期

2019-

优化

  • 创建 namespace/configmap/secrets/pvc/deployment/Service/Ingress 等 K8S 对象时，对表单中的名字等字段做 trim() 操作

BUG 修复

Copyright © 2019-present Huanqing Shao
- + diff --git a/docs/overview/change-log.html b/docs/overview/change-log.html index cfc0068..5b185cc 100644 --- a/docs/overview/change-log.html +++ b/docs/overview/change-log.html @@ -7,7 +7,7 @@ - + @@ -16,6 +16,6 @@

Copyright © 2019-present Huanqing Shao
- + diff --git a/docs/overview/concepts.html b/docs/overview/concepts.html index 39775e0..1712872 100644 --- a/docs/overview/concepts.html +++ b/docs/overview/concepts.html @@ -7,7 +7,7 @@ - + @@ -24,6 +24,6 @@ →

Copyright © 2019-present Huanqing Shao
- + diff --git a/docs/overview/index.html b/docs/overview/index.html index 91dfc82..e6c42fe 100644 --- a/docs/overview/index.html +++ b/docs/overview/index.html @@ -6,19 +6,19 @@ Kuboard 简介 | Kuboard - - + +
Kuboard

Kuboard 简介

A cool Kubernetes dashboard.

Kuboard 可以有效降低 Kubernetes 初学者的学习门槛，对于有经验的用户，也是非常顺手的一款运维工具。

Kuboard 的主要特点：

  • 场景化设计
  • 微服务分层显示
  • 微服务上下文监控

image-20190716234146419

在线体验

Kuboard 在线体验

-为保证环境的稳定性，在线 Demo 中只提供只读权限。（请在PC浏览器中打开）

开始使用

Kubernetes 初学者

单纯地按章节学习 Linux 基础知识、网络知识、容器技术等，每一块儿的基础入门书籍就有几百页之多。

最好的学习方法是在 实践中学习，碰到问题时去寻求答案，解决问题 之后 总结反思。这种学习方法趣味性强，得来的知识也最为牢靠，所学知识通常也是工作中实用性最高的。

读 100 页 K8S 文档，不如把 K8S 安装一遍

Kuboard 为 Kubernetes 初学者设计了如下学习路径：

Kubernetes 有经验者

作为资深的 Kubernetes 用户，您一定有如下痛苦：

  • Yaml 复杂繁多
    • Yaml 文件冗长、繁多
    • 编写和维护 YAML 文件耗费了大量的时间
  • 多环境
    • 准备了开发环境，又要维护测试环境、准上线环境、生产环境
  • kubectl 命令复杂难记
    • 反复执行 kubectl 命令，与集群的交互界面始终处于片段化的信息中，需要连续好几个命令才能诊断问题

Kuboard 为您的这些痛苦提供了极佳的解决方案，请立刻开始：

Kubernetes + Spring Cloud

使用 Kuboard 在 Kubernetes 上部署 Spring Cloud 微服务：（正在编写文档，准备好后，请通知我）

Kubernetes + Devops

正在编写文档，准备好后，请通知我

在线提问

Kuboard 兴趣群二维码

+为保证环境的稳定性，在线 Demo 中只提供只读权限。（请在PC浏览器中打开）

开始使用

Kubernetes 初学者

单纯地按章节学习 Linux 基础知识、网络知识、容器技术等，每一块儿的基础入门书籍就有几百页之多。

最好的学习方法是在 实践中学习，碰到问题时去寻求答案，解决问题 之后 总结反思。这种学习方法趣味性强，得来的知识也最为牢靠，所学知识通常也是工作中实用性最高的。

读 100 页 K8S 文档，不如把 K8S 安装一遍

Kuboard 为 Kubernetes 初学者设计了如下学习路径：

Kubernetes 有经验者

作为资深的 Kubernetes 用户，您一定有如下痛苦：

  • Yaml 复杂繁多
    • Yaml 文件冗长、繁多
    • 编写和维护 YAML 文件耗费了大量的时间
  • 多环境
    • 准备了开发环境，又要维护测试环境、准上线环境、生产环境
  • kubectl 命令复杂难记
    • 反复执行 kubectl 命令，与集群的交互界面始终处于片段化的信息中，需要连续好几个命令才能诊断问题

Kuboard 为您的这些痛苦提供了极佳的解决方案，请立刻开始：

Kubernetes + Spring Cloud

使用 Kuboard 在 Kubernetes 上部署 Spring Cloud 微服务：（正在编写文档，准备好后，请通知我）

Kubernetes + Devops

正在编写文档，准备好后，请通知我

在线提问

Kuboard 兴趣群二维码

十分钟带你理解Kubernetes核心概念 →

Copyright © 2019-present Huanqing Shao
- + diff --git a/docs/overview/k8s-core-concepts.html b/docs/overview/k8s-core-concepts.html index 2acf2b2..b057426 100644 --- a/docs/overview/k8s-core-concepts.html +++ b/docs/overview/k8s-core-concepts.html @@ -6,14 +6,14 @@ 十分钟带你理解Kubernetes核心概念 | Kuboard - - + +
Kuboard

十分钟带你理解Kubernetes核心概念

转载信息：

译文链接 译者：崔婧雯

原文链接 作者：Omer Dawelbeit

本文将会简单介绍Kubernetes的核心概念。因为这些定义可以在Kubernetes的文档中找到，所以文章也会避免用大段的枯燥的文字介绍。相反，我们会使用一些图表（其中一些是动画）和示例来解释这些概念。我们发现一些概念（比如Service）如果没有图表的辅助就很难全面地理解。在合适的地方我们也会提供Kubernetes文档的链接以便读者深入学习。

什么是Kubernetes？

Kubernetes（k8s）是自动化容器操作的开源平台，这些操作包括部署，调度和节点集群间扩展。如果你曾经用过Docker容器技术部署容器，那么可以将Docker看成Kubernetes内部使用的低级别组件。Kubernetes不仅仅支持Docker，还支持Rocket，这是另一种容器技术。 使用Kubernetes可以：

  • 自动化容器的部署和复制
  • 随时扩展或收缩容器规模
  • 将容器组织成组，并且提供容器间的负载均衡
  • 很容易地升级应用程序容器的新版本
  • 提供容器弹性，如果容器失效就替换它，等等...

集群

集群是一组节点，这些节点可以是物理服务器或者虚拟机，之上安装了Kubernetes平台。下图展示这样的集群。注意该图为了强调核心概念有所简化。这里可以看到一个典型的Kubernetes架构图。

1.png

上图可以看到如下组件，使用特别的图标表示Service和Label：

  • PodContainer（容器）
  • Label(label)（标签）
  • Replication Controller（复制控制器）
  • Service（enter image description here）（服务）
  • Node（节点）
  • Kubernetes Master（Kubernetes主节点）

Pod

Pod（上图绿色方框）安排在节点上，包含一组容器和卷。同一个Pod里的容器共享同一个网络命名空间，可以使用localhost互相通信。Pod是短暂的，不是持续性实体。你可能会有这些问题：

  • 如果Pod是短暂的，那么我怎么才能持久化容器数据使其能够跨重启而存在呢？ 是的，Kubernetes支持 卷 的概念，因此可以使用持久化的卷类型。
  • 是否手动创建Pod，如果想要创建同一个容器的多份拷贝，需要一个个分别创建出来么？可以手动创建单个Pod，但是也可以使用Replication Controller使用Pod模板创建出多份拷贝，下文会详细介绍。
  • 如果Pod是短暂的，那么重启时IP地址可能会改变，那么怎么才能从前端容器正确可靠地指向后台容器呢？这时可以使用Service，下文会详细介绍。

Label

正如图所示，一些Pod有Label（enter image description here）。一个Label是attach到Pod的一对键/值对，用来传递用户定义的属性。比如，你可能创建了一个"tier"和“app”标签，通过Label（tier=frontend, app=myapp）来标记前端Pod容器，使用Label（tier=backend, app=myapp）标记后台Pod。然后可以使用 Selectors 选择带有特定Label的Pod，并且将Service或者Replication Controller应用到上面。

Replication Controller

是否手动创建Pod，如果想要创建同一个容器的多份拷贝，需要一个个分别创建出来么，能否将Pods划到逻辑组里？

Replication Controller确保任意时间都有指定数量的Pod“副本”在运行。如果为某个Pod创建了Replication Controller并且指定3个副本，它会创建3个Pod，并且持续监控它们。如果某个Pod不响应，那么Replication Controller会替换它，保持总数为3.如下面的动画所示：

2.gif

如果之前不响应的Pod恢复了，现在就有4个Pod了，那么Replication Controller会将其中一个终止保持总数为3。如果在运行中将副本总数改为5，Replication Controller会立刻启动2个新Pod，保证总数为5。还可以按照这样的方式缩小Pod，这个特性在执行滚动 升级 时很有用。

当创建Replication Controller时，需要指定两个东西：

  1. Pod模板：用来创建Pod副本的模板
  2. Label：Replication Controller需要监控的Pod的标签。现在已经创建了Pod的一些副本，那么在这些副本上如何均衡负载呢？我们需要的是Service。

最新 Kubernetes 版本里，推荐使用 Deployment

Service

如果Pods是短暂的，那么重启时IP地址可能会改变，怎么才能从前端容器正确可靠地指向后台容器呢？ Service 抽象 -现在，假定有2个后台Pod，并且定义后台Service的名称为‘backend-service’，lable选择器为（）。 的Service会完成如下两件重要的事情：

  • 会为Service创建一个本地集群的DNS入口，因此前端Pod只需要DNS查找主机名为 ‘backend-service’，就能够解析出前端应用程序可用的IP地址。
  • 现在前端已经得到了后台服务的IP地址，但是它应该访问2个后台Pod的哪一个呢？Service在这2个后台Pod之间提供透明的负载均衡，会将请求分发给其中的任意一个（如下面的动画所示）。通过每个Node上运行的代理（kube-proxy）完成。

下述动画展示了Service的功能。注意该图作了很多简化。如果不进入网络配置，那么达到透明的负载均衡目标所涉及的底层网络和路由相对先进。如果有兴趣，有更深入的介绍。

3.gif

每个节点都运行如下Kubernetes关键组件：

  • Kubelet：是主节点代理。
  • Kube-proxy：Service使用其将链接路由到Pod，如上文所述。
  • Docker或Rocket：Kubernetes使用的容器技术来创建容器。

Kubernetes Master

集群拥有一个Kubernetes Master（紫色方框）。Kubernetes Master提供集群的独特视角，并且拥有一系列组件，比如Kubernetes API Server。API Server提供可以用来和集群交互的REST端点。master节点包括用来创建和复制Pod的Replication Controller。

+现在，假定有2个后台Pod，并且定义后台Service的名称为‘backend-service’，lable选择器为（）。 的Service会完成如下两件重要的事情：

  • 会为Service创建一个本地集群的DNS入口，因此前端Pod只需要DNS查找主机名为 ‘backend-service’，就能够解析出前端应用程序可用的IP地址。
  • 现在前端已经得到了后台服务的IP地址，但是它应该访问2个后台Pod的哪一个呢？Service在这2个后台Pod之间提供透明的负载均衡，会将请求分发给其中的任意一个（如下面的动画所示）。通过每个Node上运行的代理（kube-proxy）完成。

下述动画展示了Service的功能。注意该图作了很多简化。如果不进入网络配置，那么达到透明的负载均衡目标所涉及的底层网络和路由相对先进。如果有兴趣，有更深入的介绍。

3.gif

每个节点都运行如下Kubernetes关键组件：

  • Kubelet：是主节点代理。
  • Kube-proxy：Service使用其将链接路由到Pod，如上文所述。
  • Docker或Rocket：Kubernetes使用的容器技术来创建容器。

Kubernetes Master

集群拥有一个Kubernetes Master（紫色方框）。Kubernetes Master提供集群的独特视角，并且拥有一系列组件，比如Kubernetes API Server。API Server提供可以用来和集群交互的REST端点。master节点包括用来创建和复制Pod的Replication Controller。

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Copyright © 2019-present Huanqing Shao
- + diff --git a/docs/overview/support.html b/docs/overview/support.html index fb7a702..3243c4e 100644 --- a/docs/overview/support.html +++ b/docs/overview/support.html @@ -7,7 +7,7 @@ - + @@ -20,6 +20,6 @@ →

Copyright © 2019-present Huanqing Shao
- + diff --git a/docs/overview/why-kuboard.html b/docs/overview/why-kuboard.html index af0dc9e..a885b9b 100644 --- a/docs/overview/why-kuboard.html +++ b/docs/overview/why-kuboard.html @@ -7,7 +7,7 @@ - + @@ -26,6 +26,6 @@ →

Copyright © 2019-present Huanqing Shao
- + diff --git a/package-lock.json b/package-lock.json index 2449e29..718a1da 100644 --- a/package-lock.json +++ b/package-lock.json @@ -10442,6 +10442,12 @@ } } }, + "vuepress-plugin-baidu-autopush": { + "version": "1.0.1", + "resolved": "https://registry.npm.taobao.org/vuepress-plugin-baidu-autopush/download/vuepress-plugin-baidu-autopush-1.0.1.tgz", + "integrity": "sha1-5QQhcPBaWFxKOPh24B/0cGzYL74=", + "dev": true + }, "vuepress-plugin-container": { "version": "2.0.2", "resolved": "https://registry.npm.taobao.org/vuepress-plugin-container/download/vuepress-plugin-container-2.0.2.tgz", diff --git a/package.json b/package.json index fd77245..01783b4 100644 --- a/package.json +++ b/package.json @@ -10,6 +10,7 @@ "@vuepress/plugin-nprogress": "^1.0.2", "date-fns": "^1.30.1", "vuepress": "^1.0.2", + "vuepress-plugin-baidu-autopush": "^1.0.1", "vuepress-plugin-element-tabs": "^0.1.8", "vuepress-plugin-reading-progress": "^1.0.7", "vuepress-plugin-seo": "^0.1.2"