eignatov

Удалить/очистить все данные Докера (контейнеры, образы, тома и сети)

Одной строкой

docker stop $(docker ps -qa) && docker rm $(docker ps -qa) && docker rmi -f $(docker images -qa) && docker volume rm $(docker volume ls -q) && docker network rm $(docker network ls -q)

Описание команд

Requirement

USB flash drive - this is where the container filesystem will be persisted

Set-up docker bridge network

/interface bridge add name=docker

Set-up veth to be used by container

Двойной VPN на основе OpenVPN

Сначало настроим второй сервер:

Шаг 1. Установка OpenVPN

sudo apt update
sudo apt install openvpn easy-rsa

How to mount a qcow2 disk image

This is a quick guide to mounting a qcow2 disk images on your host server. This is useful to reset passwords, edit files, or recover something without the virtual machine running.

Step 1 - Enable NBD on the Host

modprobe nbd max_part=8

	# /etc/network/interfaces
	#
	auto lo
	iface lo inet loopback

	# device: eth0
	iface eth0 inet manual

	# IPv4 bridge
	# (connect ONLY your firewall/router KVM instance here, this is the WAN device!)

	Первый шаг, получить список разделов в образе:

	fdisk -l hive-0.5-12-20171211.img
	Диск hive-0.5-12-20171211.img: 7 GiB, 7549747200 байтов, 14745600 секторов
	Единицы измерения: секторов из 1 * 512 = 512 байтов
	Размер сектора (логический/физический): 512 байт / 512 байт
	I/O size (minimum/optimal): 512 bytes / 512 bytes
	Тип метки диска: dos
	Идентификатор диска: 0x244b7fbe

	/ ip address
	add address=192.168.0.1/24 network=192.168.0.0 broadcast=192.168.0.255 interface=LAN
	add address=10.111.0.2/24 network=10.111.0.0 broadcast=10.111.0.255 interface=ISP1
	add address=10.112.0.2/24 network=10.112.0.0 broadcast=10.112.0.255 interface=ISP2

	/ ip firewall mangle
	add chain=prerouting dst-address=10.111.0.0/24 action=accept in-interface=LAN
	add chain=prerouting dst-address=10.112.0.0/24 action=accept in-interface=LAN
	add chain=prerouting in-interface=ISP1 connection-mark=no-mark action=mark-connection \
	new-connection-mark=ISP1_conn

	# remove
	/usr/libexec/PlistBuddy -c 'Add :LSUIElement bool true' /Applications/iTerm.app/Contents/Info.plist

	# restore
	/usr/libexec/PlistBuddy -c 'Delete :LSUIElement' /Applications/iTerm.app/Contents/Info.plist

	# shell command:
	pg_dump <db_name> -U <db_user> -h <db_host> \| gzip \| curl -u <ftp_user>:<ftp_password> ftp://<ftp_host>/`date '+%Y-%m-%d_%H-%M'`/db_backup.sql.gz --ftp-create-dirs -T -

	# if you want to execute it through cron, be sure to escape all %!
	# for crontab:
	pg_dump <db_name> -U <db_user> -h <db_host> \| gzip \| curl -u <ftp_user>:<ftp_password> ftp://<ftp_host>/`date '+\%Y-\%m-\%d_\%H-\%M'`/db_backup.sql.gz --ftp-create-dirs -T -