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cnrancher / kube-explorer

A portable explorer for Kubernetes, without any dependency.
Apache License 2.0
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web-shell is invalid #3

Closed tufeiping closed 3 years ago

tufeiping commented 3 years ago

When i use web-shell, the status bar display "connecting", After a while, status is "Disconnected".

server log:

ERRO[0007] Error during subscribe websocket: close sent ERRO[0007] Error during subscribe websocket: close sent ERRO[0013] Error during subscribe websocket: close sent ERRO[0013] Error during subscribe websocket: close sent ERRO[0158] Error during subscribe websocket: close sent ERRO[0158] Error during subscribe websocket: close sent

niusmallnan commented 3 years ago

web-shell需要拉取一个镜像 rancher/shell ，创建一个Pod，在Pod里执行相关命令。

按照以下思路排查：

  1. shell pod是否创建成功？你可以在kube-system下看到这个Pod状态：dashboard-shell-xxx
  2. 查看浏览器的前端请求，是否出现特殊提示？比如浏览器提示该ws请求不合法
tufeiping commented 3 years ago

我在所有机器上都重新pull了rancher/shell:v0.1.6，然后重启kube-explorer，还是报错，LOGS： Killing Pod dashboard-shell-vs76g Stopping container shell 27 secs ago Killing Pod dashboard-shell-vs76g Stopping container proxy 27 secs ago Created Pod dashboard-shell-vs76g Created container proxy 28 secs ago Started Pod dashboard-shell-vs76g Started container proxy 28 secs ago Pulled Pod dashboard-shell-vs76g Container image "rancher/shell:v0.1.6" already present on machine 29 secs ago Created Pod dashboard-shell-vs76g Created container shell 29 secs ago Started Pod dashboard-shell-vs76g Started container shell 29 secs ago Pulled Pod dashboard-shell-vs76g Container image "rancher/shell:v0.1.6" already present on machine

niusmallnan commented 3 years ago

你需要关注dashboard-shell的运行状态，找到其意外退出原因，这些日志信息其实意义不大。

我没有做过太多OS/Kernel兼容测试，我一直在AWS上用Ubuntu server进行测试，一直都运行良好。 运行kube-explorer的机器不重要，可能与你的Kubernetes环境有些不兼容。 可以提供一下你的Kubernetes版本，部署方式，OS及其kernel。

备注： Pod dashboard-shel为了一些安全机制，Pod里面搞了一个特殊的user去运行。我曾经意外在openEuler上测试过，确实不兼容，需要runasroot才可以。比较旧的CentOS没有测试过，个人对其3.10kernel很恐惧，问题太多，对容器很不友好。

tufeiping commented 3 years ago

Kubernetes 的版本是 RKE v1.18.8，我的kubeconfig是从Rancher导出来的。 我们内部集群的系统都采用Ubuntu server(18.04)

niusmallnan commented 3 years ago

如果集群已经被Rancher纳管，大可不必使用这个工具，反而会增加困扰。作为一种探索，我会去测试你说的场景。

我测试过，手动部署的RKE，使用其生成的kubeconfig，这个场景是没问题。