无法通过Vagrant从节点主机joinKubernetes master
使用kubeadm安装Kubernetes集群由Vagrant遵循官方指南：
https://kubernetes.io/docs/getting-started-guides/kubeadm/
在主控主机上安装成功：
kubeadm init
并生成一个令牌：
[root@localhost ~]# kubeadm token list TOKEN TTL EXPIRES USAGES DESCRIPTION 1eb2c2.8c9s81b32cc9937e <forever> <never> authentication,signing The default bootstrap token generated by 'kubeadm init'.
使用此令牌从节点主机join：
kubeadm join --token=1eb2c2.8c9s81b32cc9937e 192.168.33.200:6443
然后得到错误：
[kubeadm] WARNING: kubeadm is in beta, please do not use it for production clusters. [preflight] Running pre-flight checks [discovery] Trying to connect to API Server "192.168.33.200:6443" [discovery] Created cluster-info discovery client, requesting info from "https://192.168.33.200:6443" [discovery] Failed to request cluster info, will try again: [User "system:anonymous" cannot get configmaps in the namespace "kube-public". (get configmaps cluster-info)] [discovery] Failed to request cluster info, will try again: [User "system:anonymous" cannot get configmaps in the namespace "kube-public". (get configmaps cluster-info)] [discovery] Failed to request cluster info, will try again: [User "system:anonymous" cannot get configmaps in the namespace "kube-public". (get configmaps cluster-info)]
Vagrantfile ：
# Master Server config.vm.define "master", primary: true do |master| master.vm.network :private_network, ip: "192.168.33.200" master.vm.network :forwarded_port, guest: 22, host: 1234, id: 'ssh' end # Node1 Server config.vm.define "node1", autostart: true do |node1| node1.vm.network :private_network, ip: "192.168.33.201" node1.vm.network :forwarded_port, guest: 22, host: 1235, id: 'ssh' end
而且，主控主机的IP地址：
[root@localhost ~]# ip a 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: enp0s3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 08:00:27:98:15:79 brd ff:ff:ff:ff:ff:ff inet 10.0.2.15/24 brd 10.0.2.255 scope global dynamic enp0s3 valid_lft 86132sec preferred_lft 86132sec inet6 fe80::f7f:ed69:e0f3:2e88/64 scope link valid_lft forever preferred_lft forever 3: enp0s8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 08:00:27:6c:30:78 brd ff:ff:ff:ff:ff:ff inet 192.168.33.200/24 brd 192.168.33.255 scope global enp0s8 valid_lft forever preferred_lft forever inet6 fe80::a00:27ff:fe6c:3078/64 scope link valid_lft forever preferred_lft forever 4: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN link/ether 02:42:0f:90:a5:21 brd ff:ff:ff:ff:ff:ff inet 172.17.0.1/16 scope global docker0 valid_lft forever preferred_lft forever
我将192.168.33.200设置为私有IP。 为什么它显示在第三位？ 这是node1主机不能访问这个主机的原因吗？
但是我做了一个关于Apache服务器的testing。 在主控主机上安装httpd之后，我可以通过浏览器访问网页： http://192.168.33.200 ： http://192.168.33.200 。
加成
我可以ssh从节点主机（192.168.33.201）掌握主机（192.168.33.200）。 但需要密码：
[root@localhost ~]# ssh vagrant@192.168.33.200 The authenticity of host '192.168.33.200 (192.168.33.200)' can't be established. ECDSA key fingerprint is 04:9d:3e:eb:4e:7b:14:17:2d:e8:18:0d:80:ab:71:9c. Are you sure you want to continue connecting (yes/no)? yes Warning: Permanently added '192.168.33.200' (ECDSA) to the list of known hosts. vagrant@192.168.33.200's password: Last login: Wed May 24 01:09:34 2017 from 10.0.2.2 [vagrant@localhost ~]$
ip route信息（主机主机192.168.33.200）
[root@localhost ~]# ip route default via 10.0.2.2 dev enp0s3 proto static metric 100 10.0.2.0/24 dev enp0s3 proto kernel scope link src 10.0.2.15 metric 100 169.254.0.0/16 dev enp0s8 scope link metric 1003 172.17.0.0/16 dev docker0 proto kernel scope link src 172.17.0.1 192.168.33.0/24 dev enp0s8 proto kernel scope link src 192.168.33.200
对于具有多个接口的主机，可以指定主机监听的接口
kubeadm init --apiserver-advertise-address <ip_address>