Linux Containers: Difference between revisions
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| Line 96: | Line 96: | ||
'''troubleshoot network''' | '''troubleshoot network''' | ||
sudo tcpdump -i eth0 -vn icmp | sudo tcpdump -i eth0 -vn icmp | ||
sudo nmcli c up System\ eth0 | '''sudo nmcli c up System\ eth0''' | ||
ps uax | grep systemd-udev | |||
ps aux | grep dnsmasq | |||
ip a | ip a | ||
ip r | ip r | ||
Revision as of 07:06, 27 May 2022
sudo apt upgrade && sudo apt autoremove sudo snap install lxd --channel=4.0/stable
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]:
'
Instance 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
Knowledge
lxc list 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 a ip r
sudo snap install lxd --channel=3.0/stable sudo snap install lxd --channel=4.0/stable sudo snap install lxd --channel=5.0/stable
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 snap install lxd --channel=4.0/stable sudo snap install lxd --channel=3.0/stable sudo snap install lxd sudo lxd.migrate
sudo lxd init --auto sudo lxd init
lxc remote list lxc image list
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 sudo zfs list -t all sudo ps fauxww
sudo groupadd --system lxd sudo usermod -G lxd -a $USER newgrp lxd