kubernetes安装和kube-dns：打开/run/flannel/subnet.env：没有这样的文件或目录

Question

概述

kubeadm init 和网络设置后，

kube-dns 无法启动（SetupNetworkError）：

Public Sub exceljson()
Dim http As Object, JSON As Object, i As Integer
Set http = CreateObject("MSXML2.XMLHTTP")
http.Open "GET", "http://jsonplaceholder.typicode.com/users", False
http.Send
Set JSON = ParseJson(http.responseText)
i = 2
For Each Item In JSON
Sheets(1).Cells(i, 1).Value = Item("id")
Sheets(1).Cells(i, 2).Value = Item("name")
Sheets(1).Cells(i, 3).Value = Item("username")
Sheets(1).Cells(i, 4).Value = Item("email")
Sheets(1).Cells(i, 5).Value = Item("address")("city")
Sheets(1).Cells(i, 6).Value = Item("phone")
Sheets(1).Cells(i, 7).Value = Item("website")
Sheets(1).Cells(i, 8).Value = Item("company")("name")
i = i + 1
Next
MsgBox ("complete")
End Sub

Kubernetes版

Error syncing pod, skipping: failed to "SetupNetwork" for 
"kube-dns-654381707-w4mpg_kube-system" with SetupNetworkError: 
"Failed to setup network for pod 
\"kube-dns-654381707-w4mpg_kube-system(8ffe3172-a739-11e6-871f-000c2912631c)\" 
using network plugins \"cni\": open /run/flannel/subnet.env: 
no such file or directory; Skipping pod"

环境

适用于Mac的VMWare Fusion

OS

Client Version: version.Info{Major:"1", Minor:"4", GitVersion:"v1.4.4", GitCommit:"3b417cc4ccd1b8f38ff9ec96bb50a81ca0ea9d56", GitTreeState:"clean", BuildDate:"2016-10-21T02:48:38Z", GoVersion:"go1.6.3", Compiler:"gc", Platform:"linux/amd64"}
Server Version: version.Info{Major:"1", Minor:"4", GitVersion:"v1.4.4", GitCommit:"3b417cc4ccd1b8f38ff9ec96bb50a81ca0ea9d56", GitTreeState:"clean", BuildDate:"2016-10-21T02:42:39Z", GoVersion:"go1.6.3", Compiler:"gc", Platform:"linux/amd64"}

内核（例如uname -a）

NAME="Ubuntu"
VERSION="16.04.1 LTS (Xenial Xerus)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 16.04.1 LTS"
VERSION_ID="16.04"
HOME_URL="http://www.ubuntu.com/"
SUPPORT_URL="http://help.ubuntu.com/"
BUG_REPORT_URL="http://bugs.launchpad.net/ubuntu/"
VERSION_CODENAME=xenial
UBUNTU_CODENAME=xenial

有什么问题

Linux ubuntu-master 4.4.0-47-generic #68-Ubuntu SMP Wed Oct 26 19:39:52 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

我期望发生什么

kube-dns正在运行

如何重现

kube-system   kube-dns-654381707-w4mpg                0/3       ContainerCreating   0          2m
FirstSeen     LastSeen        Count   From                    SubobjectPath   Type            Reason          Message
  ---------     --------        -----   ----                    -------------   --------        ------          -------
  3m            3m              1       {default-scheduler }                    Normal          Scheduled       Successfully assigned kube-dns-654381707-w4mpg to ubuntu-master
  2m            1s              177     {kubelet ubuntu-master}                 Warning         FailedSync      Error syncing pod, skipping: failed to "SetupNetwork" for "kube-dns-654381707-w4mpg_kube-system" with SetupNetworkError: "Failed to setup network for pod \"kube-dns-654381707-w4mpg_kube-system(8ffe3172-a739-11e6-871f-000c2912631c)\" using network plugins \"cni\": open /run/flannel/subnet.env: no such file or directory; Skipping pod"

Answer 1

在运行kubeadm init之前，您似乎已经配置了法兰绒。您可以尝试通过删除法兰绒来修复此问题（删除配置文件rm -f /etc/cni/net.d/*flannel*可能就足够了），但最好重新开始。