Alpine init

alpine-init.md

1. Use at your own risk
2. This script assumes that grep, sed is available, and doas or sudo if not running as root

alpine-init.sh

#!/bin/sh

# Check if the script is run as root or with doas/sudo
if [ "$(id -u)" -ne 0 ]; then
  if [ -x "$(command -v doas)" ]; then
    SUDO="doas"
  elif [ -x "$(command -v sudo)" ]; then
    SUDO="sudo"
  else
    echo "This script must be run as root or with doas/sudo."
    exit 1
  fi
else
  SUDO=""
fi

# Install packages
$SUDO apk add util-linux-misc lsblk lscpu pciutils nmap nmap-nping \
  traceroute mtr fastfetch vim bash bash-completion btop htop iotop iftop \
  lsof libcap curl wget qemu-guest-agent vnstat iperf3 wireguard-tools dhcpcd \
  nftables slirp4netns kitty-terminfo podman podman-compose starship

# Enable and start vnstatd, qemu-guest-agent
SERVICES="vnstatd qemu-guest-agent"
for service in $SERVICES; do
  $SUDO rc-update add $service
  $SUDO rc-service $service start
done

# Setup NTP
echo -e "\n" | $SUDO setup-ntp

# Setup starship and bash
echo '[[ -f ~/.bashrc ]] && . ~/.bashrc' > ~/.bash_profile
echo 'eval "$(starship init bash)"' > ~/.bashrc
mkdir -p ~/.config
starship preset plain-text-symbols -o ~/.config/starship.toml

# Setup rootless podman
$SUDO adduser -h /home/podman -s /sbin/nologin -D -u 121 podman
$SUDO rc-update add cgroups
$SUDO rc-service cgroups start
$SUDO modprobe tun
echo tun | $SUDO tee -a /etc/modules > /dev/null
echo podman:100000:65536 | $SUDO tee /etc/subuid | $SUDO tee /etc/subgid > /dev/null
echo 'If you see a warning running podman:'
echo '  WARN[0000] "/" is not a shared mount, this could cause issues or missing mounts with rootless containers'
echo 'You might want to fix this:'
echo '  https://wiki.alpinelinux.org/wiki/Podman#Shared_mount'

# Change shell to /bin/bash
$SUDO sed -i.bak "s|^\($(id -un):[^:]*:[^:]*:[^:]*:[^:]*:[^:]*:\).*|\1/bin/bash|" /etc/passwd
echo "Change your shell to /bin/bash:"
echo "  $(grep $(id -un) /etc/passwd)"

# Enable OpenRC logger
$SUDO sed -i.bak -E 's/^[[:space:]]*#[[:space:]]*(rc_logger[[:space:]]*=.*)$/\1/; s/^(rc_logger[[:space:]]*=).*$/\1"YES"/' /etc/rc.conf
echo "Enabled OpenRC logger:"
echo "  $(grep rc_logger /etc/rc.conf)"