具有专用网络的Centos7丢失了固定IP

Question

我有一个centos7流浪盒的网络问题.当我设置一个具有固定IP的专用网络时,这个网络首先绑定良好,但在几秒钟/几分钟后丢失.

 vagrant up
 ==> default: Forcing shutdown of VM...
 ==> default: Destroying VM and associated drives...
 ==> default: Running cleanup tasks for 'shell' provisioner...
 Bringing machine 'default' up with 'virtualbox' provider...
 ==> default: Importing base box 'sfeirbenelux/centos7'...
 ==> default: Matching MAC address for NAT networking...
 ==> default: Checking if box 'sfeirbenelux/centos7' is up to date...
 ==> default: Setting the name of the VM: poc_docker
 ==> default: Fixed port collision for 22 => 2222. Now on port 2200.
 ==> default: Clearing any previously set network interfaces...
 ==> default: Preparing network interfaces based on configuration...
     default: Adapter 1: nat
     default: Adapter 2: hostonly
 ==> default: Forwarding ports...
     default: 22 => 2200 (adapter 1)
 ==> default: Running 'pre-boot' VM customizations...
 ==> default: Booting VM...
 ==> default: Waiting for machine to boot. This may take a few minutes...
     default: SSH address: 127.0.0.1:2200
     default: SSH username: vagrant
     default: SSH auth method: private key
     default: Warning: Connection timeout. Retrying...
     default:
     default: Vagrant insecure key detected. Vagrant will automatically replace
     default: this with a newly generated keypair for better security.
     default:
     default: Inserting generated public key within guest...
     default: Removing insecure key from the guest if its present...
     default: Key inserted! Disconnecting and reconnecting using new SSH key...
 ==> default: Machine booted and ready!
 ==> default: Checking for guest additions in VM...
     default: The guest additions on this VM do not match the installed version of
     default: VirtualBox! In most cases this is fine, but in rare cases it can
     default: prevent things such as shared folders from working properly. If you see
     default: shared folder errors, please make sure the guest additions within the
     default: virtual machine match the version of VirtualBox you have installed on
     default: your host and reload your VM.
     default:
     default: Guest Additions Version: 5.0.2
     default: VirtualBox Version: 4.3
 ==> default: Setting hostname...
 ==> default: Configuring and enabling network interfaces...
 ==> default: Running provisioner: shell...
     default: Running: inline script
 ==> default: net.ipv4.ip_forward = 1
 ==> default: Setting up swapspace version 1, size = 2097148 KiB
 ==> default: no label, UUID=170723d8-1782-4915-a877-4d9874ac7396
 ?  install git:(master) ? ping 192.168.100.20
 PING 192.168.100.20 (192.168.100.20): 56 data bytes
 64 bytes from 192.168.100.20: icmp_seq=0 ttl=64 time=0.390 ms
 64 bytes from 192.168.100.20: icmp_seq=1 ttl=64 time=0.252 ms
 64 bytes from 192.168.100.20: icmp_seq=2 ttl=64 time=0.461 ms
 ^C
 --- 192.168.100.20 ping statistics ---
 3 packets transmitted, 3 packets received, 0.0% packet loss
 round-trip min/avg/max/stddev = 0.252/0.368/0.461/0.087 ms
 ?  install git:(master) ? ping 192.168.100.20
 PING 192.168.100.20 (192.168.100.20): 56 data bytes
 64 bytes from 192.168.100.20: icmp_seq=0 ttl=64 time=0.273 ms
 Request timeout for icmp_seq 1
 Request timeout for icmp_seq 2
 Request timeout for icmp_seq 3
 Request timeout for icmp_seq 4

有了这个流浪文件:

vagrant.configure(2) do |config|

 config.vm.box = "centos7"
 config.vm.hostname = "docker-registry"
 config.vm.box_url = "https://github.com/holms/vagrant-centos7-box/releases/download/7.1.1503.001/CentOS-7.1.1503-x86_64-netboot.box"

 #config.vm.network "public_network"
 config.vm.network "private_network", ip: "192.168.100.20"
 #config.vm.synced_folder ".", "/vagrant", type: "nfs"

 # VirtualBox
 config.vm.provider :virtualbox do |vb|
   vb.name = "poc_docker"
   vb.memory = 3072
   vb.cpus = 2
   vb.customize ["modifyvm", :id, "--natdnshostresolver1", "on"]
   vb.customize ["modifyvm", :id, "--natdnsproxy1", "on"]
 end


end

当我在盒子上连接时,似乎ip丢失了.

sudo /sbin/ifup eth1

暂时修复问题,但IP会再次丢失.重新启动框(vagrant halt && vagrant up)似乎可以永久解决问题.我尝试用Packer创建一个自定义的centos 7盒子(https://atlas.hashicorp.com/sfeirbenelux/boxes/centos7),我也重现了这个问题.

我想这是Centos 7的具体问题？你有同样的问题吗？有没有办法通过添加vagrant命令来解决这个问题？

我的环境:

OS XYosemite➜-vagrant --version Vagrant1.7.2➜~VBoxManage--version 4.3.26r98988

Answer 1

由于DHCP配置,这似乎是一个问题(问题:https://github.com/mitchellh/vagrant/issues/5590)

网络服务不重新加载NetworkManager,因此它将继续等待dhcp lease ..并且在dhcp超时后,将删除固定的ip.

添加shell配置脚本

sudo nmcli connection reload
sudo systemctl restart network.service

解决了这个问题

编辑:vagrant 1.7.3+也修复了这个bug;)

Answer 2

在较新的Vagrant版本(1.9.1)中似乎存在类似的问题.

解决问题的拉取请求已合并(尚未发布):

https://github.com/mitchellh/vagrant/pull/8148

如果您想应用该修复程序,可以尝试此操作(可能需要sudo,具体取决于文件权限):

1. 找到你当地的Vagrant安装(在Fedora上/opt/vagrant/)

2. 移动到vagrant gem的文件夹:

   cd embedded/gems/gems/vagrant-1.9.1
   

3. 初始化一个新的Git存储库并添加GitHub远程:

   git init
   git remote add origin https://github.com/mitchellh/vagrant.git
   git fetch --all
   

4. 签出新分支并将其重置为当前版本(例如1.9.1).

   如果您不确定是否有本地更改,请不要使用--hard并在重置后执行git diff/ git checkout:

   git checkout -b hotfixes
   git reset --hard v1.9.1
   

5. 现在应用此修补程序:

   git cherry-pick 96611341a96d7d19fdade5556a110b22c6add22b
   

在那之后一个vagrant reload应该提出本地网络就好了.

Answer 3

该修复程序在以下网址中提及:https://github.com/mitchellh/vagrant/pull/8148

在/opt/vagrant/embedded/gems/gems/vagrant-1.9.1/plugins/guests/redhat/cap/configure_networks.rb,

添加/sbin/ifup '#{network[:device]}'之后nmcli c reload || true.