diff --git a/.DS_Store b/.DS_Store index a367352..a47117e 100644 Binary files a/.DS_Store and b/.DS_Store differ diff --git a/Assignment8.md b/Assignment8.md index 053d275..69f4ff9 100644 --- a/Assignment8.md +++ b/Assignment8.md @@ -65,7 +65,7 @@ #### 2）登录云主机，安装kubectl -``` +```bash wget https://storage.googleapis.com/kubernetes-release/release/v1.19.0/bin/linux/amd64/kubectl chmod +x kubectl sudo mv kubectl /usr/local/bin/ (root用户：mv kubectl /usr/bin/) @@ -102,7 +102,7 @@ kubectl version -o json #### 6）尝试几个基本命令 -``` +```bash kubectl cluster-info //打印集群信息 kubectl get nodes //打印节点信息 kubectl get pods //打印pod信息 @@ -116,7 +116,7 @@ kubectl get services //打印service信息 #### 1）运行以下命令，部署一个assignment2中的静态网页app -``` +```bash kubectl create deployment webapp --image=uhub-edu.service.ucloud.cn/cloud_computing/static_site ``` @@ -131,7 +131,7 @@ kubectl create deployment webapp --image=uhub-edu.service.ucloud.cn/cloud_comput #### 3）这时我们需要用kubectl创建一个代理，使得从云主机可以访问集群（从而访问pod）。打开一个新的Terminal或者XShell窗口，登录云主机。 -``` +```bash echo -e "\n\e[92mStarting Proxy. After starting it will not output a response. Please click the first Terminal Tab\n"; kubectl proxy ``` @@ -140,7 +140,7 @@ echo -e "\n\e[92mStarting Proxy. After starting it will not output a response. P #### 4）访问webapp应用（访问pod） -``` +```bash export POD_NAME=$(kubectl get pods -o go-template --template '{{range .items}}{{.metadata.name}}{{"\n}}{{end}}') echo Name of the Pod: $POD_NAME //如果这一步没有输出，说明$POD_NAME没有获得pod名称，可以把kubectl get pods得到的pod名字直接赋给$POD_NAME。 curl http://localhost:8001/api/v1/namespaces/default/pods/$POD_NAME/proxy/ @@ -156,7 +156,7 @@ curl http://localhost:8001/api/v1/namespaces/default/pods/$POD_NAME/proxy/ #### 1）查看pod当前副本信息 -``` +```bash kubectl get rs ``` @@ -165,7 +165,7 @@ kubectl get rs #### 2）查看pod的详细信息 -``` +```bash kubectl get pods -o wide ``` @@ -179,7 +179,7 @@ kubectl get pods -o wide #### 3）现在让我们用一行命令将副本scale到10个，然后再次查看pod详细信息 -``` +```bash kubectl scale deployments/webapp --replicas=10 kubectl get pods -o wide ``` @@ -193,13 +193,13 @@ kubectl get pods -o wide #### 1）创建一个负载均衡service，将webapp暴露给外网 -``` +```bash kubectl expose deployment webapp --type=LoadBalancer --port=80 ``` #### 2）查看当前的service，你可以找到负载均衡服务的外网ip地址 -``` +```bash kubectl get services ``` @@ -208,12 +208,43 @@ kubectl get services #### 3）在你自己的电脑上，打开浏览器，访问http://负载均衡服务的外网ip地址 + + +***************** 关于负载均衡获取不到ip 一直处于pending的暂时解决方案*********** + +##### a. 使用 `kubectl get nodes ` 命令获取 `master`节点的ip + +#####   + + +##### b. 在当前云主机终端使用`ssh root@ip` 登陆`master`节点 + +##### c. 修改 `/etc/kubernetes/yaml/userdata.yaml` 文件的内容，补全密钥信息，密钥信息可以在`ucloud控制台获取` + + + +> 补充完整的配置文件应该如下所示: + +/kbd> + +##### d. 运行如下命令: + +```bash +kubectl apply -f /etc/kubernetes/yaml/userdata.yaml +``` + + + +##### e. 退出当前`master`节点，回退到云主机，稍等片刻，`ip`将会自动分配 + + + ## `**************作业5：请将kubectl get services输出信息截图、并将浏览器地址栏和网页内容一起截图，并插入实验报告***************` #### 4）删除service，删除所有pod，最后在网页上删除集群，删除云主机（包括K8S没有自动删除的云主机）。 -``` +```bash kubectl delete service webapp kubectl delete deployment webapp ``` diff --git a/file/.DS_Store b/file/.DS_Store deleted file mode 100644 index e2c1343..0000000 Binary files a/file/.DS_Store and /dev/null differ diff --git a/file/assignment2/.DS_Store b/file/assignment2/.DS_Store deleted file mode 100644 index fc1dd6a..0000000 Binary files a/file/assignment2/.DS_Store and /dev/null differ diff --git a/img/.DS_Store b/img/.DS_Store deleted file mode 100644 index 48393c8..0000000 Binary files a/img/.DS_Store and /dev/null differ diff --git a/img/assignment2/.DS_Store b/img/assignment2/.DS_Store deleted file mode 100644 index 17c4103..0000000 Binary files a/img/assignment2/.DS_Store and /dev/null differ diff --git a/img/assignment8/apply_config.png b/img/assignment8/apply_config.png new file mode 100644 index 0000000..8937faa Binary files /dev/null and b/img/assignment8/apply_config.png differ diff --git a/img/assignment8/k8s_master_ip.png b/img/assignment8/k8s_master_ip.png new file mode 100644 index 0000000..7dc06a0 Binary files /dev/null and b/img/assignment8/k8s_master_ip.png differ diff --git a/img/assignment8/master_yml.png b/img/assignment8/master_yml.png new file mode 100644 index 0000000..f4e58ec Binary files /dev/null and b/img/assignment8/master_yml.png differ diff --git a/img/assignment8/ucloud_key.png b/img/assignment8/ucloud_key.png new file mode 100644 index 0000000..12c26f2 Binary files /dev/null and b/img/assignment8/ucloud_key.png differ