freifunk/Firmware-building Changeset - e608a9c725b4 · Chaos Computer Club Lëtzebuerg Projects

Changeset - e608a9c725b4

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x - 1 month ago 2025-09-12 13:55:31
xbr@c3l.lu

refactor: freifunk_root.sh for build VM setup

1 file changed with 49 insertions and 22 deletions:

build_script/freifunk_root.sh

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build_script/freifunk_root.sh

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 #!/usr/bin/env bash
 # Installing QoL packages and then (after build-essential incl.) dependencies
 apt update && apt install -y htop tmux vim sudo mosh build-essential git python3 python-is-python3 python3-distutils ecdsautils gawk unzip libncurses5-dev zlib1g-dev libssl-dev libelf-dev wget rsync time qemu-utils
 # Create `user` user with `sudo` group
 useradd -ms /bin/bash -G sudo user
 # `sudo` group w/o password
 sed -i /etc/sudoers -re 's/^%sudo.*/%sudo ALL=(ALL:ALL) NOPASSWD: ALL/g'
 mkdir -v /home/user/.ssh
 # my public key
 echo "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIOLFCOqpPOTZEQiWcY9TyVQnMoc5bCYlxLaRKhiB/uxo xbr 2024-06-16" >> /home/user/.ssh/authorized_keys
 # projects.c3l.lu public key
 echo "|1|X2M4bHKf8E+plhJ6KoDZzCfw5LI=|EpHLDWOmOq4SLelYTGd8SH+7hvU= ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIXfRmGmfbxPoErs5lpTnz+PZRQdh0QvPGTiswxFkXOx" >> /home/user/.ssh/known_hosts
 chown -vR user:user /home/user/.ssh
 chmod -v 700 /home/user/.ssh
 chmod -v 600 /home/user/.ssh/*
 chmod -v 644 /home/user/.ssh/known_hosts
 # make a key to have access to projects.c3l.lu
 sudo -u user ssh-keygen -t ed25519 -N '' -C 'freifunk-hetzner-builder' -f /home/user/.ssh/id_ed25519 <<<n
 echo ""
 echo "The ssh key is the following: "
 cat /home/user/.ssh/id_ed25519.pub
 set +xe
 username=user
 ssh_login_key="ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIOLFCOqpPOTZEQiWcY9TyVQnMoc5bCYlxLaRKhiB/uxo xbr 2024-06-16"
 projects_c3l_pubkey="|1|X2M4bHKf8E+plhJ6KoDZzCfw5LI=|EpHLDWOmOq4SLelYTGd8SH+7hvU= ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIXfRmGmfbxPoErs5lpTnz+PZRQdh0QvPGTiswxFkXOx"
 log() {
     printf "[-] %s" "$@"
+}
 install_packages() {
     log "Installing packages..."
     apt update
     # Installing QoL packages (1) then gluon deps (2)
     # ! Debian 13-specific !
     apt install -y htop tmux vim sudo mosh \
                 git python3 python-is-python3 python3-setuptools build-essential ecdsautils gawk unzip libncurses5-dev zlib1g-dev libssl-dev libelf-dev wget rsync time qemu-utils
+}
 create_user() {
     log "Creating user..."
     # user: forcing bash, and needs (passwordless) sudo
     useradd -ms /bin/bash -G sudo $username
     # enabling passwordless sudo
     sed -i /etc/sudoers -re 's/^%sudo.*/%sudo ALL=(ALL:ALL) NOPASSWD: ALL/g'
+}
 ssh_setup() {
     log "Setting up SSH..."
     sudo -u user ssh-keygen -t ed25519 -N '' -C 'freifunk-builder' <<<n
     home_dir=""; eval home_dir=~$username
     echo "$ssh_login_key" >> "$home_dir/.ssh/authorized_keys"
     chmod -v 600 "$home_dir/.ssh/authorized_keys"
     echo "$projects_c3l_pubkey" >> "$home_dir/.ssh/known_hosts"
     chmod -v 644 "$home_dir/.ssh/known_hosts"
     echo "The user's SSH pubkey is the following:"
     cat "$home_dir/.ssh/id_ed25519.pub"
     echo
     echo "Do not forget to add it to projects.c3l.lu"
+}
 install_packages
 create_user
 ssh_setup

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