Slackware: CentOS linux container
- (re)compile your kernel including every config option needed to have lxc-checkconfig output "enable" in each line.
- (re)compile your kernel to add support for "networking bridge"
- update rpm package using the one found here
- install yum package, you can find it here
- make sure to have lxc package installed (it's in the main Slackware repository)
- make sure tu have installed bridge-utils package (it's in the main Slackware repository)
- make sure to have enough free disk space (my setup used at least 400MB)
- add at the end of /etc/rc.d/rc.local the following lines /usr/sbin/brctl addbr br0 /usr/sbin/brctl br0 10.0.0.1/24 /usr/sbin/iptables -t nat -A POSTROUTING -s 10.0.0.100 -o eth0 -j MASQUERADE /sbin/sysctl net.ipv4.ip_forward=1
- execute lxc-create --name Name --template=centos --dir=Path Name is the name you want to give to your container Path is the directory you want to use to store all the files
- wait and give answers to questions
- enter into Path
- read from tmp_root_pass the password you will use to access, as root, the container shell
- modify file config adding the following lines to the network section lxc.network.type = veth lxc.network.flags = up lxc.network.link = br0 lxc.network.name = eth0 lxc.network.ipv4=10.0.0.100 lxc.network.ipv4.gateway=10.0.0.1 lxc.network.flags=up lxc.network.mtu=1500
- to start a container use lxc-start --name=Name
- to stop a container use lxc-stop --name=Name
- to see the list of available containers use lxc-ls
- this configuration allow you to access your CentOS container only from your Slackare host machine, if you need to access it from outside you have to change your bridge configuration
- to see more commands you can use to manage containers open, as root, a shell, digit lxc and than press twice <tab>
- using my guide your linux container will have 10.0.0.100 as ip address and your bridge will use 10.0.0.1
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Preparazione
- (ri)configurate il vostro kernel in modo che l'output di lxc-checkconfig dia "enabled" su tutte le voci e che sia abilitato il supporto di rete per i "bridge"
- aggiornate il pacchetto rpm con quello presente qui
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- assicuratevi di aver installato il pacchetto lxc presente nei repository slackware
- assicuratevi di aver installato il pacchetto bridge-utils presente nei repository Slackware
- assicuratevi di avere abbastanza spazio su disco (nel mio test ho avuto visogno di circa 400MB)
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