尽管clusterIP服务是为它们设置的,但我仍在努力解决豆荚之间的这种交叉通信问题。所有的荚都在同一个主节点上,在同一个命名空间中。摘要:
$ kubectl get pods -o wide
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
nginx-744f4df6df-rxhph 1/1 Running 0 136m 10.42.0.31 raspberrypi <none> <none>
nginx-2-867f4f8859-csn48 1/1 Running 0 134m 10.42.0.32 raspberrypi <none> <none>
$ kubectl get svc -o wide
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE SELECTOR
nginx-service ClusterIP 10.43.155.201 <none> 80/TCP 136m app=nginx
nginx-service2 ClusterIP 10.43.182.138 <none> 85/TCP 134m app=nginx-2我不能在nginx容器内卷曲http://nginx-service2:85,反之亦然.虽然我验证了这一点在我的docker桌面安装中是有效的:
# docker desktop
root@nginx-7dc45fbd74-7prml:/# curl http://nginx-service2:85
<!DOCTYPE html>
<html>
<head>
<title>Welcome to nginx!</title>
<style>
body {
width: 35em;
margin: 0 auto;
font-family: Tahoma, Verdana, Arial, sans-serif;
}
</style>
</head>
<body>
<h1>Welcome to nginx!</h1>
<p>If you see this page, the nginx web server is successfully installed and
working. Further configuration is required.</p>
<p>For online documentation and support please refer to
<a href="http://nginx.org/">nginx.org</a>.<br/>
Commercial support is available at
<a href="http://nginx.com/">nginx.com</a>.</p>
<p><em>Thank you for using nginx.</em></p>
</body>
</html>
# k3s
root@nginx-744f4df6df-rxhph:/# curl http://nginx-service2.pwk3spi-vraptor:85
curl: (6) Could not resolve host: nginx-service2.pwk3spi-vraptor在googling这个问题之后(如果我错了,请纠正我),这似乎是一个核心问题,因为查看日志并查看错误超时:
$ kubectl get pods -n kube-system
NAME READY STATUS RESTARTS AGE
helm-install-traefik-qr2bd 0/1 Completed 0 153d
metrics-server-7566d596c8-nnzg2 1/1 Running 59 148d
svclb-traefik-kjbbr 2/2 Running 60 153d
traefik-758cd5fc85-wzjrn 1/1 Running 20 62d
local-path-provisioner-6d59f47c7-4hvf2 1/1 Running 72 148d
coredns-7944c66d8d-gkdp4 1/1 Running 0 3m47s
$ kubectl logs coredns-7944c66d8d-gkdp4 -n kube-system
.:53
[INFO] plugin/reload: Running configuration MD5 = 1c648f07b77ab1530deca4234afe0d03
CoreDNS-1.6.9
linux/arm, go1.14.1, 1766568
[ERROR] plugin/errors: 2 1898797220.1916943194. HINFO: read udp 10.42.0.38:50482->192.168.8.109:53: i/o timeout
[ERROR] plugin/errors: 2 1898797220.1916943194. HINFO: read udp 10.42.0.38:34160->192.168.8.109:53: i/o timeout
[ERROR] plugin/errors: 2 1898797220.1916943194. HINFO: read udp 10.42.0.38:53485->192.168.8.109:53: i/o timeout
[ERROR] plugin/errors: 2 1898797220.1916943194. HINFO: read udp 10.42.0.38:46642->192.168.8.109:53: i/o timeout
[ERROR] plugin/errors: 2 1898797220.1916943194. HINFO: read udp 10.42.0.38:55329->192.168.8.109:53: i/o timeout
[ERROR] plugin/errors: 2 1898797220.1916943194. HINFO: read udp 10.42.0.38:44471->192.168.8.109:53: i/o timeout
[ERROR] plugin/errors: 2 1898797220.1916943194. HINFO: read udp 10.42.0.38:49182->192.168.8.109:53: i/o timeout
[ERROR] plugin/errors: 2 1898797220.1916943194. HINFO: read udp 10.42.0.38:54082->192.168.8.109:53: i/o timeout
[ERROR] plugin/errors: 2 1898797220.1916943194. HINFO: read udp 10.42.0.38:48151->192.168.8.109:53: i/o timeout
[ERROR] plugin/errors: 2 1898797220.1916943194. HINFO: read udp 10.42.0.38:48599->192.168.8.109:53: i/o timeout在那里人们推荐
..。其他CoreFile材料 向前走。主机服务器IP ..。其他CoreFile材料
搜索default.svc.cluster.local svc.cluster.local cluster.local 名称服务器10.42.0.38 名称服务器192.168.8.1 名称服务器fe80::266:19 fea7:羽毛7:85e7%wlan0 0
然而,没有发现这些解决方案是有效的。
详情供参考:
$ kubectl get nodes -o wide
NAME STATUS ROLES AGE VERSION INTERNAL-IP EXTERNAL-IP OS-IMAGE KERNEL-VERSION CONTAINER-RUNTIME
raspberrypi Ready master 153d v1.18.9+k3s1 192.168.8.109 <none> Raspbian GNU/Linux 10 (buster) 5.10.9-v7l+ containerd://1.3.3-k3s2
$ kubectl get svc -n kube-system -o wide
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE SELECTOR
kube-dns ClusterIP 10.43.0.10 <none> 53/UDP,53/TCP,9153/TCP 153d k8s-app=kube-dns
metrics-server ClusterIP 10.43.205.8 <none> 443/TCP 153d k8s-app=metrics-server
traefik-prometheus ClusterIP 10.43.222.138 <none> 9100/TCP 153d app=traefik,release=traefik
traefik LoadBalancer 10.43.249.133 192.168.8.109 80:31222/TCP,443:32509/TCP 153d app=traefik,release=traefik
$ kubectl get ep kube-dns -n kube-system
NAME ENDPOINTS AGE
kube-dns 10.42.0.38:53,10.42.0.38:9153,10.42.0.38:53 153d我不知道我在哪里出错,或者我是否专注于错误的事情,也不知道如何继续下去。如有任何帮助,我们将不胜感激。
发布于 2021-03-05 06:45:22
当其他一切都失败..。回到手册上去。我试着在所有错误的地方找到“问题”,而我只需按照Rancher的k3s安装文档(叹息)。
牧场主文献是非常好的(您只需要实际遵循它),在上安装k3s时,他们会声明
检查版本: $ lsb_release -a没有LSB模块可用。发行商ID: Raspbian描述: Raspbian /Linux 10 ( buster )发行版: 10代号:buster
您需要更改为遗留的iptable,说明要运行(链接):
sudo iptables -F
sudo update-alternatives --set iptables /usr/sbin/iptables-legacy
sudo update-alternatives --set ip6tables /usr/sbin/ip6tables-legacy
sudo reboot注意到,当设置iptable时,直接在pi上做,而不是通过ssh。你会被赶出去
在这样做之后,我的所有服务都很高兴,并且可以通过容器中定义的clusterIP服务名称等相互弯曲。
发布于 2022-05-20 09:21:22
对于任何不想像我一样在使用k3s的centos上浪费3个小时的人,您需要禁用防火墙,以便这些服务能够相互调用。
建议关闭壁炉:
systemctl disable firewalld --now如果启用,则需要禁用nm云设置并重新启动节点:
systemctl disable nm-cloud-setup.service nm-cloud-setup.timer
reboot在我禁用它之后,服务可以通过我的Config中的dns名称相互调用。
仍然在寻找更好的方法,然后禁用防火墙,但这取决于k3s项目的开发人员。
发布于 2021-03-03 19:02:29
你是否有理由试图缩短这个地址:
curl http://nginx-service2.pwk3spi-vraptor:85这不是应该是:
curl http://nginx-service2:85https://stackoverflow.com/questions/66463181
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