85 lines
No EOL
2.7 KiB
Markdown
85 lines
No EOL
2.7 KiB
Markdown
Some commands:
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```console
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$ lxc image alias list images:
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$ lxc info <name>
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$ lxc config edit <name>
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$ lxc config show <name>
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$ lxc exec <name> bash
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# Some limits
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$ lxc config set <name> limits.memory 512MB
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$ lxc config set <name> limits.cpu 2
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$ lxc config set <name> limits.cpu.allowance 50%
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$ lxc config set <name> limits.memory.swap false
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$ lxc config device set <name> root limits.read 30MB
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$ lxc config device set <name> root limits.write 10MB
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$ lxc config device set <name> root limits.read 20Iops
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$ lxc config device set <name> root limits.write 10Iops
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$ lxc config device override <name> root size=20GB
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$ lxc profile device set default eth0 limits.ingress 100Mbit
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$ lxc profile device set default eth0 limits.egress 100Mbit
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# Port isolation make the container unable to see other containers that are also in port_isolation mode
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$ lxc config device set <name> eth0 security.port_isolation=true
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$ lxc profile device set default eth0 security.port_isolation=true
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$ lxc
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$ lxc launch images:debian/11 <name>
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$ lxc config set <name> environment.LC_ALL=en_US.UTF-8
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$ lxc list
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$ lxc storage volume list <storagename>
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$ #mode privileged
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$ lxc launch ubuntu:20.04 test -c security.privileged=true -c security.nesting=true
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$ lxc config device add test ssh proxy listen=tcp:0.0.0.0:2222 connect=tcp:127.0.0.1:22
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$ #Create a backups volume in the local (default) pool (ZFS) and use it for backups
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$ lxc storage volume create local backups
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$ lxc config set storage.backups_volume local/backups
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$ #Create a images volume in the local (default) pool (ZFS) and use it for images (containers images downloaded)
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$ lxc storage volume create local images
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$ lxc config set storage.images_volume local/images
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$ lxc config device add $containerName $deviceName disk source=/home/foo path=/home/foo
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$ lxc config device add $containerName $deviceName disk source=/dev/<disk> path=/home/foo
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```
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Path:
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- /var/lib/lxd/
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- /var/snap/lxd/common/lxd/
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Entering LXD namespace managed by snap (to access ZFS mount points for example):
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```console
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# nsenter -t $(cat /var/snap/lxd/common/lxd.pid) -m
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```
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Some packages I like to install on fresh containers install:
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```
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vim
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postfix
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logrotate
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etckeeper
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iputils-ping
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dnsutils
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```
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Some initial steps:
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- Enable journald
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- Set hostname (create /etc/hostname on Archlinux!)
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- Configure postfix
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Disable getty for old containers images:
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```console
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# sed -i 's/^tty/# tty/g' /etc/inittab
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# systemctl disable getty@tty{1..4}
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# reboot
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```
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Nginx memo:
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```nginx
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set_real_ip_from W.X.Y.Z;
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#real_ip_recursive on;
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real_ip_header X-Forwarded-For;
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log_format custom '$http_x_forwarded_for - $remote_user [$time_local] '
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'"$request" $status $body_bytes_sent '
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'"$http_referer" "$http_user_agent"';
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access_log /var/log/nginx/access.log custom;
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``` |