252 lines
6.8 KiB
Markdown
252 lines
6.8 KiB
Markdown
# Arch Linux installation to serve as a docker host
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###### guide-by-example
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# Purpose
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Linux that will run docker.
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This is not a hand hodling explaining guide how to install arch.</br>
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It's more of a checklist on what to do if you already done it
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and know what you are doing.</br>
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Google for plenty of tutorials and youtube videos alongside arch wiki.
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* [Official site](https://www.archlinux.org/)
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* [Arch wiki install guide](https://wiki.archlinux.org/index.php/installation_guide)
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* [Arch wiki docker entry](https://wiki.archlinux.org/index.php/docker)
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# Files and directory structure
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```
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/home/
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└── bastard/
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└── docker/
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├── container-setup #1
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├── container-setup #2
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├── ...
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```
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# Make installation usb
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[wiki](https://wiki.archlinux.org/index.php/USB_flash_installation_media)
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`sudo dd bs=4M if=archlinux-2020.05.01-x86_64.iso of=/dev/sdX status=progress oflag=direct`
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The above command will fuck your machine up if you dunno what you are doing.
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# Boot from the usb
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This is BIOS/MBR setup as I am running on an old thinkpad with a busted screen,
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plus I like the simplicity of it.</br>
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So if theres boot menu option choose non-uefi.
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# Installation
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* create a single partition and mark it bootable</br>
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`cfdisk -z /dev/sda`
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* build ext4 filesystem on it</br>
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`mkfs.ext4 /dev/sda1`
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* mount the new partition</br>
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`mount /dev/sda1 /mnt`
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* choose geographicly close mirror, `dd` deletes entire line in vim</br>
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`vim /etc/pacman.d/mirrorlist`
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* install the base system </br>
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`pacstrap /mnt base linux linux-firmware base-devel grub vim`
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* gnerate fstab</br>
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`genfstab -U /mnt > /mnt/etc/fstab`
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* chroot in to the new system</br>
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`arch-chroot /mnt`
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* install grub</br>
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`grub-install /dev/sda`</br>
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`grub-mkconfig -o /boot/grub/grub.cfg`
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* set password for root</br>
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`passwd`
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* remove the bootable media and restart the machine</br>
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`exit`</br>
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`reboot`
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# Basic configuration after the first boot
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* login as `root`</br>
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* set hostname</br>
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`echo docker-host > /etc/hostname`
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* add new user and set their password</br>
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`useradd -m -G wheel bastard`</br>
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`passwd bastard`
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* edit sudoers to allow users of the group wheel to sudo</br>
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`EDITOR=vim visudo`</br>
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*%wheel ALL=(ALL) ALL*
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* check the network interface name</br>
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`ip link`
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* set static IP using systemd-networkd and resolv.conf</br>
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`vim /etc/systemd/network/20-wired.network`
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```
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[Match]
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Name=enp0s25
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[Network]
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Address=10.0.19.2/24
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Gateway=10.0.19.1
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```
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`vim /etc/resolv.conf`
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```
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nameserver 8.8.8.8
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nameserver 1.1.1.1
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```
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`systemctl enable --now systemd-networkd`
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No troublesome `systemd-resolved` in this setup.
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* uncomment desidred locales in locale.gen</br>
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`vim /etc/locale.gen`</br>
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* generate new locales and set one system wide</br>
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`locale-gen`</br>
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`localectl set-locale LANG=en_US.UTF-8`
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* select timezone and set it permanent</br>
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`tzselect`</br>
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`timedatectl set-timezone 'Europe/Bratislava'`
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* set hardware clock and sync using ntp</br>
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`hwclock --systohc --utc`</br>
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`timedatectl set-ntp true`
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* setup a swap file</br>
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`fallocate -l 8G /swapfile`</br>
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`chmod 600 /swapfile`</br>
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`mkswap /swapfile`</br>
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`vim /etc/fstab`</br>
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*/swapfile none swap defaults 0 0*
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* reboot</br>
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`reboot`
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# SSH, Docker, ZSH, AUR
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From now on its login as non-root user.
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### Setup SSH access
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[wiki](https://wiki.archlinux.org/index.php/OpenSSH)
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* install openssh package</br>
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`sudo pacman -S openssh`
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* edit sshd_config</br>
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`sudo vim /etc/ssh/sshd_config`</br>
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*PasswordAuthentication yes*
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* enable sshd service</br>
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`sudo systemctl enable --now sshd`
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### Setup docker
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[Wiki](https://wiki.archlinux.org/index.php/docker)
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* have `docker` and `docker-compose` packages installed</br>
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`sudo pacman -S docker docker-compose`
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* enable docker service</br>
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`sudo systemctl enable --now docker`
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* add non-root user to the docker group</br>
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`sudo gpasswd -a bastard docker`
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### ZSH shell
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[wiki](https://wiki.archlinux.org/index.php/zsh)
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I like [Zim](https://github.com/zimfw/zimfw),
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it's the fastest zsh framework and out of the box setup nicely
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* install zsh and curl packages</br>
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`sudo pacman -S zsh git curl`
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* install zim, it changes users default shell to zsh</br>
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`curl -fsSL https://raw.githubusercontent.com/zimfw/install/master/install.zsh | zsh`
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* change the default shell to zsh </br>
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`chsh -s /bin/zsh`
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##### Adding stuff to .zshrc
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`vim .zshrc`
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* `export EDITOR=vim`
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* for ctrl+f prepending sudo
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```bash
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add_sudo (){
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BUFFER="sudo $BUFFER"
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zle -w end-of-line
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}
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zle -N add_sudo
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bindkey "^f" add_sudo
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```
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##### ZSH docker autocomplete
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[Here](https://docs.docker.com/compose/completion/#zsh).
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For zim it's "Without oh-my-zsh shell" section.
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### Access to AUR
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Using [Yay](https://github.com/Jguer/yay).
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* install git package</br>
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`sudo pacman -S git`
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* install yay</br>
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`git clone https://aur.archlinux.org/yay-bin.git`</br>
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`cd yay-bin && makepkg -si`</br>
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`cd .. && rm -rf yay-bin`</br>
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`ctop-bin` and `inxi` are good AUR packages.
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# Extra stuff
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[wiki - general general recommendations](https://wiki.archlinux.org/index.php/general_recommendations)</br>
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[wiki - improving performance](https://wiki.archlinux.org/index.php/Improving_performance)</br>
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### Some packages
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Tools
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* `sudo pacman -S fuse curl wget vim nnn bind-tools borg python-llfuse`
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Monitoring and testing
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* `sudo pacman -S htop lm_sensors iotop nload powertop iproute2`
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### Performance and maintenance
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* install cron and enable the service</br>
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`sudo pacman -S cronie`</br>
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`sudo systemctl enable --now cronie`
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* if ssd, enable periodic trim</br>
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`sudo pacman -S util-linux`</br>
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`sudo systemctl enable --now fstrim.timer`
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* set noatime in fstab to prevent unnecessary keep of read times</br>
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`sudo vim /etc/fstab`</br>
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*UUID=cdd..addb / ext4 rw,noatime 0 1*
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* enable use of all cpu cores for makepkg jobs and disable compression</br>
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`sudo vim /etc/makepkg.conf`</br>
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*MAKEFLAGS="-j$(nproc)"*</br>
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*PKGEXT='.pkg.tar'*
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* clean up old packages weekly, keep last 3</br>
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`sudo pacman -S pacman-contrib`</br>
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`sudo systemctl enable --now paccache.timer`
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* use reflector to get the fastes mirrors based on country `-c <country code>`</br>
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`sudo pacman -S reflector`</br>
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`sudo reflector -l 200 -n 20 -c SK -c CZ -p http --sort rate --save /etc/pacman.d/mirrorlist`
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### Comfort
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* enable colors in pacman.conf</br>
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`sudo vim /etc/pacman.conf`</br>
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*Color*
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### Notebook
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* control power events, lid close for example</br>
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`sudo vim /etc/systemd/logind.conf`</br>
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*HandleLidSwitch=ignore*
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