What is the correct way of defining the HDD size of individual containers? Is there any command? I have used a dataset from a zpool for storage. Should I directly manipulate zpool usingzfs set quota=100G zpool3/lxd
lxc config set xenial limits.cpu 2
lxc config set xenial limits.memory 1024MB
root@pep:~# lxc storage show default
config:
source: zpool3/lxd
zfs.pool_name: zpool3/lxd
description: ""
name: default
driver: zfs
used_by:
- /1.0/containers/trusty
- /1.0/containers/xenial
- /1.0/containers/xenial-clean
Thanks! you save a lot of out CPU time in the University!
mgregal
May 2, 2018, 5:24pm
2
Look at: Adjusting size of root device - #2 by stgraber
As well you can create a profile with limits; for example:
$ lxc profile show limites
config:
limits.cpu: "1"
limits.cpu.allowance: 30%
limits.memory: 120MB
limits.memory.enforce: soft
description: profile with limits
devices:
root:
path: /
pool: lxd
size: 12GB
type: disk
name: limites
used_by:
- /1.0/containers/alpine01
Now, you can create and assign the desired profiles:
$ lxc launch images:alpine/3.7 alpine02 -p default -p limites
$ lxc exec alpine02 -- df -h
Filesystem Size Used Available Use% Mounted on
lxd/containers/alpine02
12.0G 4.9M 12.0G 0% /
lxd/containers/alpine02
12.0G 4.9M 12.0G 0% /
none 492.0K 0 492.0K 0% /dev
udev 3.8G 0 3.8G 0% /dev/full
udev 3.8G 0 3.8G 0% /dev/null
udev 3.8G 0 3.8G 0% /dev/random
udev 3.8G 0 3.8G 0% /dev/tty
udev 3.8G 0 3.8G 0% /dev/urandom
udev 3.8G 0 3.8G 0% /dev/zero
udev 3.8G 0 3.8G 0% /dev/fuse
udev 3.8G 0 3.8G 0% /dev/net/tun
tmpfs 100.0K 0 100.0K 0% /dev/lxd
tmpfs 100.0K 0 100.0K 0% /dev/.lxd-mounts
tmpfs 787.2M 52.0K 787.2M 0% /run
For example, you can have some profiles to apply limits and other for networking or all in one.