lk/virtualization/lxc.md

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2020-01-02 00:04:35 +00:00
LXC creates miniature virtual machines to play with.
# Configuration
## Templates
On Void you can install this with:
> # xbps-install -S jq skopeo umoci
After you've installed a whopping 46 Megabytes, you can configure it in /etc/lxc/default.conf if you want to change global configs, otherwhise, it's the usual ~/.config/lxc/dfault.conf.
## Networking
Make a virtual network:
> # ip link add dev BRIDGE type bridge
> # ip link set dev BRIDGE up
> # ip link set dev NIC master BRIDGE
Things in caps can be renamed.
#Create a machine
> lxc-create -n roach-1
This makes a machine with the name 'roach-1'. We can also apply a preconfigured theme with '-t', such as 'ubuntu'.
> lxc-create -n roach-2 -t ubuntu
Additionally, there we can examine, destroy and freeze containers.
> lxc-ls -n roach-1
> lxc-destroy -n roach-1
* Add '-k' to kill a process without mercy.
> lxc-freeze -n roach-2
> lxc-unfreeze -n roach-1
#Example
> for r in $(lxc-ls -1); do
> lxc-info -n $r
> done
# Monitor
You can monitor a set of containeers.
> lxc-monitor -n "roach-1|roach-2"
Or monitor all containers.
> lxc-monitor -n ".*"
# LXD
Setup by starting the lxd service, and adding your user to the group "lxd", then:
> sudo lxd init
Default port is 8443.