Linux Containers: Difference between revisions

Latest revision as of 17:43, 19 October 2024

sudo apt upgrade && sudo apt autoremove
sudo snap install lxd --channel=6.1/stable
sudo usermod -aG lxd ${USER}

sudo snap start lxd
sudo snap stop lxd
sudo snap logs lxd

Initial Setup

sudo lxd init
:'
Would you like to use LXD clustering? (yes/no) [default=no]: 
Do you want to configure a new storage pool? (yes/no) [default=yes]: 
Name of the new storage pool [default=default]: lxd-btrfs-pool-aa
Name of the storage backend to use (btrfs, ceph, dir, lvm, powerflex) [default=btrfs]: 
Create a new BTRFS pool? (yes/no) [default=yes]: 
Would you like to use an existing empty block device (e.g. a disk or partition)? (yes/no) [default=no]: 
Size in GiB of the new loop device (1GiB minimum) [default=30GiB]: 100GiB
Would you like to connect to a MAAS server? (yes/no) [default=no]: 
Would you like to create a new local network bridge? (yes/no) [default=yes]: 
What should the new bridge be called? [default=lxdbr0]: 
What IPv4 address should be used? (CIDR subnet notation, “auto” or “none”) [default=auto]: 10.20.0.1/24
Would you like LXD to NAT IPv4 traffic on your bridge? [default=yes]: 
What IPv6 address should be used? (CIDR subnet notation, “auto” or “none”) [default=auto]: none
Would you like the LXD server to be available over the network? (yes/no) [default=no]: 
Would you like stale cached images to be updated automatically? (yes/no) [default=yes]: 
Would you like a YAML "lxd init" preseed to be printed? (yes/no) [default=no]: yes
'

lxc image   ls images:debian    bookworm $(dpkg --print-architecture)
lxc image   ls images:ubuntu    noble    $(dpkg --print-architecture)
lxc image   ls images:alpine    3.20     $(dpkg --print-architecture)
lxc image   ls images:opensuse  15.6     $(dpkg --print-architecture)
lxc image   ls images:archlinux current  $(dpkg --print-architecture)
lxc image   ls

lxc storage ls
lxc network ls
lxc ls

config: {}
networks:
- config:
    ipv4.address: 10.20.0.1/24
    ipv4.nat: "true"
    ipv6.address: none
  description: ""
  name: lxdbr0
  type: ""
  project: default
storage_pools:
- config:
    size: 100GiB
  description: ""
  name: lxd-btrfs-pool-aa
  driver: btrfs
storage_volumes: []
profiles:
- config: {}
  description: ""
  devices:
    eth0:
      name: eth0
      network: lxdbr0
      type: nic
    root:
      path: /
      pool: lxd-btrfs-pool-aa
      type: disk
  name: default
projects: []
cluster: null

Management

lxc image list images: ubuntu amd64
lxc image list images: ubuntu arm64
lxc image list images: ubuntu

lxc launch images:alpine/3.20 academia --vm
lxc launch images:alpine/3.20 academia
lxc restart academia
lxc start academia
lxc stop academia

lxc launch images:opensuse/15.6 agronomy --vm
lxc launch images:opensuse/15.6 agronomy
lxc restart agronomy
lxc start agronomy
lxc stop agronomy

lxc launch images:apertis/v2020 robotics
lxc launch images:apertis/v2021 robotics
lxc restart robotics
lxc start robotics
lxc stop robotics

lxc list -c nsS
lxc list

lxc exec academia -- su --login chorke
lxc exec academia -- /bin/sh
lxc exec academia sh
lxc console academia

download from container to host
lxc file pull academia/etc/hosts ./

upload into container from host
lxc file push -r ~/.ssh/ academia/root/.ssh/
lxc file push ~/.ssh/known_hosts academia/root/.ssh/

lxc stop academia && lxc delete academia
lxc delete academia --force

manipulate remote images
lxc image refresh ubuntu:21.04
lxc image delete ubuntu:21.04
lxc image show ubuntu:21.04
lxc image edit ubuntu:21.04

manipulate local images
lxc image delete 97c97f4a1d2d
lxc image delete a7b1071c0609

Create Alias

lxc launch images:alpine/3.20 academia &&
cat <<'EXE' | lxc exec academia -- sh
sleep 5
apk --update add --no-cache curl \
openjdk21-jre; java -version
EXE

create alias:
lxc stop     academia
lxc publish  academia --alias\
 alpine/3.20:curl:java

create alias from snapshot:
lxc snapshot academia curl:java &&
lxc publish  academia/curl:java --alias\
 alpine/3.20:curl:java
lxc delete   academia

launch alias:
lxc launch   alpine/3.20:curl:java academia &&
lxc exec     academia sh
lxc stop     academia && lxc delete academia

lxc launch images:opensuse/15.6 agronomy &&
cat <<'EXE' | lxc exec agronomy -- bash
sleep 5
zypper install -y curl java-21-openjdk
java -version
EXE

create alias:
lxc stop     agronomy
lxc publish  agronomy --alias\
 opensuse/15.6:curl:java

create alias from snapshot:
lxc snapshot agronomy curl:java &&
lxc publish  agronomy/curl:java --alias\
 opensuse/15.6:curl:java
lxc delete   agronomy

launch alias:
lxc launch   opensuse/15.6:curl:java agronomy &&
lxc exec     agronomy bash
lxc stop     agronomy && lxc delete agronomy

lxc launch images:oracle/9 economia &&
cat <<'EXE' | lxc exec economia -- bash
sleep 5
dnf install -y curl java-11-openjdk
java -version
EXE

create alias:
lxc stop     economia
lxc publish  economia --alias\
 oracle/9:curl:java

create alias from snapshot:
lxc snapshot economia curl:java &&
lxc publish  economia/curl:java --alias\
 oracle/9:curl:java
lxc delete   economia

launch alias:
lxc launch   oracle/9:curl:java economia &&
lxc exec     economia bash
lxc stop     economia && lxc delete economia

lxc launch images:fedora/40 robotics &&
cat <<'EXE' | lxc exec robotics -- bash
sleep 5
dnf install -y curl java-21-openjdk
java -version
EXE

create alias:
lxc stop     robotics
lxc publish  robotics --alias\
 fedora/40:curl:java

create alias from snapshot:
lxc snapshot robotics curl:java &&
lxc publish  robotics/curl:java --alias\
 fedora/40:curl:java
lxc delete   robotics

launch alias:
lxc launch   fedora/40:curl:java robotics &&
lxc exec     robotics bash
lxc stop     robotics && lxc delete robotics

lxc launch images:ubuntu/noble/desktop software --vm &&
cat <<'EXE' | lxc exec software -- bash
sleep 5
apt-get install -y curl openjdk-21-jre
java -version
EXE

create alias:
lxc stop     software
lxc publish  software --alias\
 ubuntu/24.04:curl:java

create alias from snapshot:
lxc snapshot software curl:java &&
lxc publish  software/curl:java --alias\
 ubuntu/24.04:curl:java
lxc delete   software

launch alias:
lxc launch   ubuntu/24.04:curl:java software &&
lxc exec     software bash
lxc stop     software && lxc delete software

lxc launch images:archlinux travelia &&
cat <<'EXE' | lxc exec travelia -- sh
sleep 5
pacman --noconfirm -S curl jre21-openjdk
java -version
EXE

create alias:
lxc stop     travelia
lxc publish  travelia --alias\
 archlinux:curl:java

create alias from snapshot:
lxc snapshot travelia curl:java &&
lxc publish  travelia/curl:java --alias\
 archlinux:curl:java
lxc delete   travelia

launch alias:
lxc launch   archlinux:curl:java travelia &&
lxc exec     travelia sh
lxc stop     travelia && lxc delete travelia

Knowledge

lxc list snap info lxd journalctl -xe snap revert lxd snap list --all lxd sudo snap remove lxd journalctl -u snap.lxd.daemon systemctl reload snap.lxd.daemon systemctl status snap.lxd.daemon	troubleshoot network sudo tcpdump -i eth0 -vn icmp sudo nmcli c up System\ eth0 ps uax \| grep systemd-udev ps aux \| grep dnsmasq ip addr flush ip addr show ip a ip r	sudo snap install lxd sudo snap install lxd --channel=3.0/stable sudo snap install lxd --channel=4.0/stable sudo snap install lxd --channel=5.0/stable sudo groupadd --system lxd sudo usermod -G lxd -a $USER newgrp lxd mount \| grep cgroup systemd.unified_cgroup_hierarchy=0 cat /var/snap/lxd/common/lxd/logs/lxd.log

sudo apt update && sudo apt list --upgradable sudo apt upgrade && sudo apt autoremove sudo apt install snapd sudo zfs list -t all sudo ps fauxww sudo lxd.migrate sudo lxd init --auto sudo lxd init lxc remote list lxc image list	lxc image list images: lxc image list images: alpine lxc image list images: alpine arm64 lxc image list images: alpine amd64 lxc image list images: debian lxc image list images: debian arm64 lxc image list images: debian amd64 lxc image list images: oracle lxc image list images: oracle arm64 lxc image list images: oracle amd64	lxc image list images: ubuntu lxc image list images: ubuntu arm64 lxc image list images: ubuntu amd64 sudo ls -la /var/snap/lxd/common/lxd/images/ sudo cat /var/snap/lxd/common/lxcfs.pid sudo systemctl stop snap.lxd.daemon sudo apt install zfsutils-linux sudo lxc --verbose --debug list sudo lxd --debug --group lxd sudo ps fauxww \| grep lx

lxc launch images:alpine/3.17 academia lxc snapshot academia install:curl lxc snapshot academia install:java lxc info academia	lxc launch images:opensuse/15.3 agronomy lxc snapshot agronomy install:curl lxc snapshot agronomy install:java lxc info agronomy	lxc launch images:ubuntu/22.04 software lxc snapshot agronomy install:curl lxc snapshot agronomy install:java lxc info software

sudo snap refresh lxd --channel=latest sudo snap refresh lxd --channel=stable lxc --version lxd --version ls -lah /etc/dnsmasq.d-available/lxd/ ls -lah /etc/dnsmasq.d/lxd/	LXD_BRIDGE_IP=$(ip addr show lxdbr0 \| awk '/inet / {print $2}' \| cut -d '/' -f 1) cat << EOF \| sudo tee /etc/dnsmasq.d-available/lxd >>/dev/null server=/lxd/${LXD_BRIDGE_IP} EOF sudo ln -s /etc/dnsmasq.d-available/lxd /etc/dnsmasq.d/lxd sudo rm -f /etc/dnsmasq.d/lxd

References

Coexistence of Hypervisor, Docker & LXD Linux Containers Cloud Init Installing snap on Ubuntu Getting Started with LXC Docker on Windows Docker Compose Installing snapd Docker vs. LXC Podman Docker	PC2PC Online Share Sync Link Net Bridge Cable SSH into another computer over USB Wi-Fi Hotspot (Access Point mode) Ubuntu install LXD Snap Store LXD cluster on Raspberry Pi 4 USB 2.0 Data Link Cable LXD command hangs LXD purge and install Install Alpine on LXD Linux Cloud Init	Running virtual machines with LXD LXD bridge doesn’t work with IPv4 Containers unable to ping outside LXD » Install a Windows 11 VM Snap » Service management CentOS/8 unable to get IPv4 Close a frozen SSH Snap remove LXD LXC CGroupV2

Linux Kernel VirtualBox Multipass Proxmox Vagrant MAAS Snap CIDR UFW Juju

Linux Containers: Difference between revisions

Latest revision as of 17:43, 19 October 2024

Contents

Initial Setup

Management

Create Alias

Knowledge

References

Navigation menu

Linux Containers: Difference between revisions

Latest revision as of 17:43, 19 October 2024

Initial Setup

Management

Create Alias

Knowledge

References

Navigation menu

Search