LXD quick start (linux containers)

 1lxc profile show default
 2lxc info container_name
 3lxc config show container_name -e  #all configurations
 4lxc storage list
 5
 6lxc ls #List instances
 7lxc list -c ns4mDSb
 8
 9All available column options:
10    4 - IPv4 address
11    6 - IPv6 address
12    a - Architecture
13    b - Storage pool
14    c - Creation date
15    d - Description
16    D - disk usage
17    l - Last used date
18    m - Memory usage
19    M - Memory usage (%)
20    n - Name
21    N - Number of Processes
22    p - PID of the instances init process
23    P - Profiles
24    s - State
25    S - Number of snapshots
26    t - Type (persistent or ephemeral)
27    u - CPU usage (in seconds)
28    L - Location of the instance (e.g. its cluster member)
29    f - Base Image Fingerprint (short)
30    F - Base Image Fingerprint (long)

1lxc launch images:centos/7/amd64 container_name
2lxc launch ubuntu:20.04 container_name
3lxc launch -p profile_name ubuntu:20.04 container_name   #-p for applying a profile

1lxc config set container_name limits.memory 512MB
2lxc config set container_name limits.cpu 2
3lxc config device set container_name root size 10GB
4lxc config device set container_name eth0 limits.ingress 1Mbit

1lxc exec container_name -- /bin/bash #Get a shell inside a container as a root
2lxc exec container_name bash
3lxc exec container_name -- su --login username
4lxc console container_name  # terminal inside container, use ```ctrl+a-q``` for detach.

 1lxc profile create profilename
 2lxc profile edit profilename
 3
 4# example
 5oleg@t600:~$ lxc profile show dev1 
 6config:
 7  limits.cpu: "1"
 8  limits.memory: 1024MB
 9  user.user-data: |
10    #cloud-config
11    package_upgrade: true
12    timezone: America/Los_Angeles
13    # User setup
14    users:
15     - name: oleg
16       ssh-authorized-keys:
17         - ssh-rsa AAAA......== oleg@t800
18       sudo: ['ALL=(ALL) NOPASSWD:ALL']
19       groups: sudo
20       shell: /bin/bash
21description: dev environment for tests
22devices:
23  eth0:
24    nictype: bridged
25    parent: br0
26    type: nic
27  root:
28    path: /
29    pool: zfs-pool
30    type: disk
31name: dev1
32used_by:
33...

 1#Create bridge:
 2lxc network create testbr0 ipv6.address=none ipv4.address=none
 3lxc network create dev1br0 ipv6.address=none ipv4.address=172.20.5.10/24 ipv4.nat=true
 4
 5#containers get IP from your LAN using a bridge. Profile:
 6devices:
 7  eth0:
 8    nictype: bridged
 9    parent: br0
10    type: nic
11https://blog.simos.info/how-to-make-your-lxd-containers-get-ip-addresses-from-your-lan-using-a-bridge/
12
13#containers get IP from your LAN using macvlan
14lxc profile device add dev1 eth0 nic nictype=macvlan parent=br0
15https://blog.simos.info/how-to-make-your-lxd-container-get-ip-addresses-from-your-lan/
16
17#Set static ip (stop container before):
18lxc network attach lxdbr0 container_name eth0 eth0
19lxc config device set container_name eth0 ipv4.address 192.168.10.5

1lxc snapshot container_name snapshot_name # reate the snapshot
2lxc restore container_name snapshot_name # restore the snapshot
3lxc delete container_name/snapshot_name  # delete a snapshot

1lxc file pull container_name/path-in-container path-on-host  #from an instance to host
2lxc file pull -r container_name/path-in-container path-on-host  # Pull a folder
3lxc file push path-on-host container_name/path-in-container   #  from host to instance
4lxc file push -r path-on-host container_name/path-in-container  # folder

1lxc storage create NAME type source=/some/empty/directory
2lxc storage create zfs-pool zfs source=/dev/mapper/vg_lxd-lv_lxd_zfs
3lxc storage list  
4lxc storage show zfs-pool
5https://linuxcontainers.org/lxd/docs/master/storage

 1lxc export container_name /tmp/container_name_date.tar.gz
 2lxc import container_name_date.tar.gz 
 3
 4#Publish - turns a container or snapshot into an image in the local LXD image store
 5lxc publish container_name/snapshot --alias new_local_image
 6lxc publish container_name --alias image_name
 7
 8lxc image import container_name.tar.gz  --alias custom-imagename
 9lxc image export imagename [target folder] [flags]
10
11#https://discuss.linuxcontainers.org/t/backup-the-container-and-install-it-on-another-server/463

1lxc config set container_name security.privileged true
2lxc config set container_name raw.apparmor "mount fstype=nfs,"