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Arch Linux installation to serve as a docker host

guide by example

Purpose

Linux that will run docker.

This is not a very hand holding guide.
Google for plenty of tutorials and youtube videos alongside arch wiki.

Files and directory structure

/home/
└── bastard/
    └── docker/
        ├── container-setup #1
        ├── container-setup #2
        ├── ...

Make installation usb

wiki

sudo dd bs=4M if=archlinux-2020.05.01-x86_64.iso of=/dev/sdX status=progress oflag=direct

The above command will fuck your machine up if you dunno what you are doing

Boot from the usb

This is BIOS/MBR setup as I am running on an old thinkpad with a busted screen, plus I like the simplicity of it.
So if theres boot menu option choose non-uefi.

Installation

create a single partition and mark it bootable
cfdisk /dev/sda
build ext4 filesystem on it
mkfs.ext4 /dev/sda1
mount the new partition
mount /dev/sda1 /mnt
choose geographicly close mirror, ctrl+k deletes a line in nano
nano /etc/pacman.d/mirrorlist
install the base system
pacstrap /mnt base linux linux-firmware base-devel grub dhcpcd nano
gnerate fstab
genfstab -U /mnt > /mnt/etc/fstab
chroot in to the new system
arch-chroot /mnt
install grub
grub-install /dev/sda
grub-mkconfig -o /boot/grub/grub.cfg
remove the bootable media and restart the machine
exit
reboot

Basic configuration after the first boot

login as root
set password for root
passwd
set hostname
echo docker-host > /etc/hostname
add new user and set their password
useradd -m -G wheel bastard passwd bastard
edit sudoers to allow users group wheel to sudo
EDITOR=nano visudo
%wheel ALL=(ALL) ALL
check the network interface name
ip link
enable aquiring dynamic IP
systemctl enable --now dhcpcd@enp0s25
uncomment desidred locales in locale.gen
nano /etc/locale.gen
generate new locales and set one system wide
locale-gen
localectl set-locale LANG=en_US.UTF-8
select timezone and set it permanent
tzselect
timedatectl set-timezone 'Europe/Bratislava'
set hardware clock and sync using ntp
hwclock --systohc --utc
timedatectl set-ntp true
setup a swap file
fallocate -l 8G /swapfile
chmod 600 /swapfile
mkswap /swapfile
nano /etc/fstab
/swapfile none swap defaults 0 0
enable colors in pacman.conf
nano /etc/pacman.conf Color
reboot
reboot

SSH, ZSH, Docker, and other goodies

From now on its login as non-root user.

Setup SSH access

install openssh package
sudo pacman -S openssh
edit sshd_config
sudo nano /etc/ssh/sshd_config
PermitRootLogin prohibit-password
PasswordAuthentication yes
enable sshd service
sudo systemctl enable --now sshd

ZSH shell

I like Zim, it's the fastest zsh framework and out of the box setup nicely

install zsh package
sudo pacman -S zsh
change users default shell to zsh
chsh -s /bin/zsh
curl -fsSL https://raw.githubusercontent.com/zimfw/install/master/install.zsh | zsh

Setup docker

have docker and docker-compose packages installed
sudo pacman -S docker docker-compose
enable docker service
sudo systemctl enable --now docker
add non-root user to the docker group
sudo gpasswd -a bastard docker

Extra stuff

sudo pacman -S vim git cronie curl borg htop lm_sensors nnn bind-tools
install yay for access to AUR packages
git clone https://aur.archlinux.org/yay-bin.git
cd yay-bin && makepkg -si
cd .. && rm -rf yay-bin

ctop and inxi are good packages from yay

Adding stuff to .zshrc

export EDITOR=vim

for ctrl+f prepending sudo

add_sudo (){
    BUFFER="sudo $BUFFER"
    zle -w end-of-line
}
zle -N add_sudo
bindkey "^f" add_sudo

4.5 KiB Raw Blame History