Kubenetes
1. Kubenetes
命令文档大全:http://docs.kubernetes.org.cn/626.html
1.docker容器编排架构
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K8s架构
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2. Minikube快速搭建K8S单节点环境
1.官网 ,搭建K8s方法
https://github.com/kubernetes/minikube ---搭建单节点
https://github.com/kubernetes/kubeadm -----搭建多节点
https://github.com/kubernetes/kops ----搭建集群
https://coreos.com/tectonic/ -----超过10节点需要收费
https://labs.play-with-k8s.com/ ------只能存活4个小时
2.Minikube搭建单节点环境
需要安装好以下2个环境
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单节点创建命令
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当前只有一个节点
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注意:minikube start 创建的是content,可以创建多了,使用content去连接不同的集群
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3. K8S最小调度单位Pod
1.Pod是K8s调度的最小单位,Pod中是共享linux资源的,一个Pod可以包含多个容器
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Pod.yml文件
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pod服务,nginx是一个容器
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查看容器信息
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进入虚拟机
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查看容器情况
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进入容器内部
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kubectl进入容器,默认是进入第一个容器也就是nginx
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查看nginx Pod的详细信息
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此种方法如果停止的话端口映射也就失效了
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4. ReplicaSet和ReplicationController
ReplicaSet (V2以上版本支持) ReplicationController(V1版本支持)
1.ReplicaSet
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如果异常删除会自动创建维持3个Pod
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K8s文档
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Pod的扩展
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5. Deployment
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升级版本
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查看升级后的信息
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查看版本历史
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版本回滚
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暴露端口
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6. 使用Tectonic在本地搭建多节点K8S集群
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kubectl 补全功能
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7. k8s基础网络Cluster Network
集群机器情况
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网络架构
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创建service
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创建一个服务
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server会做负载均衡
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不停止服务跟新服务应用
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8.NodePort类型Service以及Label
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删除service但是pods还在
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选择需要暴露的pod,也就是nginx-pod
是将nginx-pod之前的80端口改成8080端口,映射改成8080-8080
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10.生产环境k8s工具
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