k3s下可读取到容器列表，但连接TTY会失败

[huapox]

• k3s 1.17.4

[root@vm23-198 k3s]# docker logs -f --tail=30 43f654475d35
INFO[0000] New kube client: host [https://127.0.0.1:6443], namespaces [default,kube-system,kube-public,kube-node-lease] 
INFO[0000] Server running at http://0.0.0.0:8080        
ERRO[0012] cannot find a valid shell in container []    
ERRO[0018] cannot find a valid shell in container []    
ERRO[0023] cannot find a valid shell in container []    
ERRO[0026] cannot find a valid shell in container []

[wrfly]

container 里面有shell吗，/bin/sh, /bin/bash, /bin/zsh 之类的？

[huapox]

container 里面有shell吗，/bin/sh, /bin/bash, /bin/zsh 之类的？

有的 特意拿指定容器试了， k3s用的containerd不是docker, 初看项目中container/kube下代码 实现上是用的KubeCli, 正常讲这块应该没关系的，

具体抽空调试下这段代码：

func (kube KubeCli) exist(ctx context.Context, containerID, path string) bool {
       ...
    restClient := kube.cli.CoreV1().RESTClient()

    req := restClient.Post().
        Resource("pods").
        Name(info.PodName).
        Namespace(info.Namespace).
        SubResource("exec").
        Param("container", info.ContainerName).
        Param("command", "ls").
        Param("command", path).
        Param("stdout", "true").
        Param("stdin", "false").
        Param("tty", "false")

    logrus.Debugf("POST to %s", req.URL())
    exec, err := remotecommand.NewSPDYExecutor(kube.config, "POST", req.URL())
    if err != nil {
        logrus.Errorf("exist exec: setup executor error: [%v]", err)
        return false
    }

    err = exec.Stream(remotecommand.StreamOptions{
        Stdout: new(bytes.Buffer),
        Tty:    false,
    })

[wrfly]

cannot find a valid shell in container []

这个应该是没有拿到这个container的ID，但理论上能拿到containers list的话，就应该可以获取到它的ID。

k3s下可读取到容器列表

index页面可以列出全部namespace的容器吗？

[huapox]

DEBU[0006] POST to https://172.25.23.198:6443/api/v1/namespaces/kube-system/pods/svclb-traefik-jtmwv/exec?command=ls&command=%2Fbin%2Fash&container=lb-port-443&stdin=false&stdout=true&tty=false 
DEBU[0006] container containerd://7092b551cb8a28b37f424f5a860ea0d6fd0333ee7d35e50f626ccf9ea44c6635 exist /bin/ash 
DEBU[0006] get shell path /bin/ash                      
DEBU[0006] get logs of container: containerd://7092b551cb8a28b37f424f5a860ea0d6fd0333ee7d35e50f626ccf9ea44c6635 
DEBU[0006] find cid: containerd://7092b551cb8a28b37f424f5a860ea0d6fd0333ee7d35e50f626ccf9ea44c6635 
DEBU[0006] get pod logs: {containerd://7092b551cb8a28b37f424f5a860ea0d6fd0333ee7d35e50f626ccf9ea44c6635 lb-port-443 rancher/klipper-lb:v0.1.2  Ready / Running age: 2h19m42s; restart 0 [10.42.2.2 3.4.5.2] /bin/ash svclb-traefik-jtmwv lb-port-443 kube-system   {   false}}

找到问题了，K3S基于默认的containerd时获取的ID格式如： containerd://7092b551cb8a28b37f424f5a860ea0d6fd0333ee7d35e50f626ccf9ea44c6635, 回到浏览器端时"/"干扰了。

如点击日志的链接为： http://172.25.23.197:8080/logs/containerd:/?follow=1&tail=10

PR: #59

[huapox]

resolved: #59