From ec4bda3594d4c6c0bd8bce60da23e1897becfe07 Mon Sep 17 00:00:00 2001 From: Malin Freeborn Date: Sat, 18 Jun 2022 15:52:05 +0200 Subject: [PATCH] remove duff lxc --- distros/arch/lxc.md | 112 ----------------------------- distros/void/lxc.md | 66 ----------------- distros/void/virtualization/lxc.md | 72 ------------------- 3 files changed, 250 deletions(-) delete mode 100644 distros/arch/lxc.md delete mode 100644 distros/void/lxc.md delete mode 100644 distros/void/virtualization/lxc.md diff --git a/distros/arch/lxc.md b/distros/arch/lxc.md deleted file mode 100644 index 48c57b0..0000000 --- a/distros/arch/lxc.md +++ /dev/null @@ -1,112 +0,0 @@ ---- -title: "lxc" -tags: [ "Documentation", "distros" ] ---- -# Distro Specifics - -Arch dependencies: `arch-install-scripts` `dnsmasq` - -# Basic Setup - -Make and start a linux container called 'playtime': - -> # lxc-create -n playtime -t download - -> # lxc-ls --fancy - -> # lxc-start playtime - -Attach it: - -> # lxc-attach playtime - -# Networking - -Place the following in /etc/default/lxc-net to configure the network: - ---- - - # Leave USE_LXC_BRIDGE as "true" if you want to use lx -cbr0 for your - # containers. Set to "false" if you'll use virbr0 or -another existing - # bridge, or mavlan to your host's NIC. - USE_LXC_BRIDGE="true" - - # If you change the LXC_BRIDGE to something other than - lxcbr0, then - # you will also need to update your /etc/lxc/default.c -onf as well as the - # configuration (/var/lib/lxc//config) for -any containers - # already created using the default config to reflect -the new bridge - # name. - # If you have the dnsmasq daemon installed, you'll als -o have to update - # /etc/dnsmasq.d/lxc and restart the system wide dnsma -sq daemon. - LXC_BRIDGE="lxcbr0" - LXC_ADDR="10.0.3.1" - LXC_NETMASK="255.255.255.0" - LXC_NETWORK="10.0.3.0/24" - LXC_DHCP_RANGE="10.0.3.2,10.0.3.254" - LXC_DHCP_MAX="253" - # Uncomment the next line if you'd like to use a conf- -file for the lxcbr0 - # dnsmasq. For instance, you can use 'dhcp-host=mail1 -,10.0.3.100' to have - # container 'mail1' always get ip address 10.0.3.100. - #LXC_DHCP_CONFILE=/etc/lxc/dnsmasq.conf - - # Uncomment the next line if you want lxcbr0's dnsmasq - to resolve the .lxc - # domain. You can then add "server=/lxc/10.0.3.1' (or - your actual $LXC_ADDR) - # to your system dnsmasq configuration file (normally -/etc/dnsmasq.conf, - # or /etc/NetworkManager/dnsmasq.d/lxc.conf on systems - that use NetworkManager). - # Once these changes are made, restart the lxc-net and - network-manager services. - # 'container1.lxc' will then resolve on your host. - #LXC_DOMAIN="lxc" - ---- - -Then start the lxc NAT: - -> sudo systemctl restart lxc-net - -> sudo systemctl restart NetworkManager - -... and make sure the bridge's ip-range doesn't intefere withe local network. - -> sudo arp-scan -I lxcbr0 -l - -The lxc template is in /etc/lxc/default.conf. You need to modify it so that it uses lxcbr0. - ---- - - /etc/lxc/default.conf - lxc.net.0.type = veth - lxc.net.0.link = lxcbr0 - lxc.net.0.flags = up - lxc.net.0.hwaddr = 00:16:3e:xx:xx:xx - ---- - -# Making machines - -> sudo lxc-create -n roach -t download -- --dist archlinux --release current --arch amd64 - -Arch linux containers take up about 600 Megs. - -To speed up the startup process, one can install haveged and start the haveged.service. Haveged stops the wait-time for system entropy creation. - -Machines are stored in /var/lib/lxc. - -# Starting - -> lxc-attach -n roach - diff --git a/distros/void/lxc.md b/distros/void/lxc.md deleted file mode 100644 index 428765e..0000000 --- a/distros/void/lxc.md +++ /dev/null @@ -1,66 +0,0 @@ ---- -title: "lxc" -tags: [ "Documentation", "distros" ] ---- -# Intro - -Taken from [this](https://r4nd0m6uy.ch/unpriviledged-containers-in-void-linux.html) -Void linux requires additional steps to set up, as Systemd is no present to automatically take care of everything. - -> sudo xbps-install cgmanager dbus bridge-utils lxc - -Next, startup services: - -> sudo ln -s /etc/sv/dbus/ /var/service/ - -> sudo ln -s /etc/sv/cgmanager/ /var/service/ - -> sudo sv start dbus - -> sudo sv start cgmanager - -> sudo sv start dbus - -> sudo sv start cgmanager - -Maps your user account to the lxc g/u ids: - -> sudo usermod --add-subuids 100000-165536 $USER - -> sudo usermod --add-subgids 100000-165536 $USER - -Then add a bridge interface to connect the container. - -> sudo brctl addbr lxbr0 - -Then add an interface. I have no idea how this is done or what it means, so I tried my wifi 'wlp3s0', and that was refused. I tried the guide's one, which obviously didn't work as I didn't have the same interface as in the guide. Finally, I tried `ip addr show` and noticed other devices 'lo' and 'wwp0s20u4i6'. This gave me: - -> sudo brctl addif lxbr0 wwp0s20u4i6 - -... which worked. - -If you don't want to redo this each boot, you can make a runit service for it apparently - more research is required for this. For now, I'm just copy-pasting the guide (almost) and sticking this in ~/.config/lxc/default.conf: - -`lxc.network.type = veth` - -`lxc.network.link = wwp0s20u4i6` - -`lxc.network.flags = up` - -`lxc.network.hwaddr = 00:16:3e:BB:CC:DD` - -`lxc.id_map = u 0 100000 65536` - -`lxc.id_map = g 0 100000 65536` - -You can now configure a different bridge each boot to connect with the lxc containers, or .... - -Next, do this at *every boot* (or script it): - -> sudo cgm create all $USER - -> sudo cgm chown all $USER $(id -u) $(id -g) - -> cgm movepid all $USER $$ - - diff --git a/distros/void/virtualization/lxc.md b/distros/void/virtualization/lxc.md deleted file mode 100644 index 0a53730..0000000 --- a/distros/void/virtualization/lxc.md +++ /dev/null @@ -1,72 +0,0 @@ ---- -title: "lxc" -tags: [ "Documentation", "Distros" ] ---- - -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. -