Proxmox的LXC容器内运行Docker-拆东墙

因手头上没有空闲的独服了，所以随便找台VPS折腾一下。既KVM虚拟机安装Proxmox，然后用Proxmox开LXC小鸡，LXC小鸡内再安装Docker，无限套娃233

LXC内运行Docker的好处是显而易见的，简而言之LXC比KVM轻很多。以下实验步骤是在Linode的一台1C1G/Debian10上完成的。

安装PVE6.X，装完之后重启：

echo "deb http://download.proxmox.com/debian/pve buster pve-no-subscription" > /etc/apt/sources.list.d/pve-install-repo.list
wget http://download.proxmox.com/debian/proxmox-ve-release-6.x.gpg -O /etc/apt/trusted.gpg.d/proxmox-ve-release-6.x.gpg
apt -y update && apt -y full-upgrade
apt -y install proxmox-ve postfix open-iscsi
reboot

VPS没有多IP，只能开NAT小鸡了，编辑网卡配置文件：

nano /etc/network/interfaces

在原有的配置基础上增加vmbr0网卡的配置即可：

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

source /etc/network/interfaces.d/*

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
allow-hotplug eth0
iface eth0 inet dhcp

auto vmbr0
iface vmbr0 inet static
        address 192.168.0.1
        netmask 255.255.255.0
        bridge_ports none
        bridge_stp off
        bridge_fd 0
        post-up echo 1 > /proc/sys/net/ipv4/ip_forward
        post-up iptables -t nat -A POSTROUTING -s '192.168.0.0/24' -o eth0 -j MASQUERADE
        post-down iptables -t nat -D POSTROUTING -s '192.168.0.0/24' -o eth0 -j MASQUERADE

重启网络服务使更改生效：