sudo apt upgrade && sudo apt autoremove
sudo snap install lxd --channel=4.0/stable
sudo snap install lxd --channel=5.10/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]: yes
What IP address or DNS name should be used to reach this node? [default=10.20.21.10]:
Are you joining an existing cluster? (yes/no) [default=no]:
What name should be used to identify this node in the cluster? [default=ubuntu]: academia
Setup password authentication on the cluster? (yes/no) [default=no]:
Do you want to configure a new local storage pool? (yes/no) [default=yes]:
Name of the storage backend to use (btrfs, dir, lvm, zfs) [default=zfs]:
Create a new ZFS 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 GB of the new loop device (1GB minimum) [default=25GB]: 100GB
Do you want to configure a new remote storage pool? (yes/no) [default=no]:
Would you like to connect to a MAAS server? (yes/no) [default=no]:
Would you like to configure LXD to use an existing bridge or host interface? (yes/no) [default=no]:
Would you like to create a new Fan overlay network? (yes/no) [default=yes]:
What subnet should be used as the Fan underlay? [default=auto]:
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]:
'
Management
lxc image list images: ubuntu amd64
lxc image list images: ubuntu arm64
lxc image list images: ubuntu
lxc launch images:alpine/3.15 academia --vm
lxc launch images:alpine/3.15 academia
lxc restart academia
lxc start academia
lxc stop academia
|
lxc launch images:opensuse/15.3 agronomy --vm
lxc launch images:opensuse/15.3 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/3.17 academia &&
lxc exec academia sh <<'EOF'
sleep 5
apk --no-cache add curl openjdk11-jre
java -version
EOF
create alias:
lxc stop academia
lxc publish academia --alias\
alpine/3.17:curl:java
create alias from snapshot:
lxc snapshot academia curl:java &&
lxc publish academia/curl:java --alias\
alpine/3.17:curl:java
lxc delete academia
launch alias:
lxc launch alpine/3.17:curl:java academia &&
lxc exec academia sh
lxc stop academia && lxc delete academia
|
lxc launch images:opensuse/15.4 agronomy &&
lxc exec agronomy bash <<'EOF'
sleep 5
zypper install -y curl java-11-openjdk
java -version
EOF
create alias:
lxc stop agronomy
lxc publish agronomy --alias\
opensuse/15.3:curl:java
create alias from snapshot:
lxc snapshot agronomy curl:java &&
lxc publish agronomy/curl:java --alias\
opensuse/15.3:curl:java
lxc delete agronomy
launch alias:
lxc launch opensuse/15.3:curl:java agronomy &&
lxc exec agronomy bash
lxc stop agronomy && lxc delete agronomy
|
lxc launch images:oracle/9 economia &&
lxc exec economia bash <<'EOF'
sleep 5
dnf install -y curl java-11-openjdk
java -version
EOF
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/37 robotics &&
lxc exec robotics bash <<'EOF'
sleep 5
dnf install -y curl java-11-openjdk
java -version
EOF
create alias:
lxc stop robotics
lxc publish robotics --alias\
fedora/37:curl:java
create alias from snapshot:
lxc snapshot robotics curl:java &&
lxc publish robotics/curl:java --alias\
fedora/37:curl:java
lxc delete robotics
launch alias:
lxc launch fedora/37:curl:java robotics &&
lxc exec robotics bash
lxc stop robotics && lxc delete robotics
|
lxc launch images:ubuntu/22.04 software &&
lxc exec software bash <<'EOF'
sleep 5
apt-get install -y curl openjdk-11-jre
java -version
EOF
create alias:
lxc stop software
lxc publish software --alias\
ubuntu/22.04:curl:java
create alias from snapshot:
lxc snapshot software curl:java &&
lxc publish software/curl:java --alias\
ubuntu/22.04:curl:java
lxc delete software
launch alias:
lxc launch ubuntu/22.04:curl:java software &&
lxc exec software bash
lxc stop software && lxc delete software
|
lxc launch images:archlinux travelia &&
lxc exec travelia sh <<'EOF'
sleep 5
pacman --noconfirm -S curl jre11-openjdk
java -version
EOF
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