141 lines
6.6 KiB
Bash
Executable file
141 lines
6.6 KiB
Bash
Executable file
#!/usr/bin/env bash
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# author: Daniel Sommer <daniel.sommer@velvettear.de>
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# license: MIT
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# variables
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swappiness="25"
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tmpfs_size="1G"
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# execution
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printf "|>> executing debian install script...\n"
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[[ "$INSTALL_USERNAME" ]] && printf "|> username set to '$INSTALL_USERNAME' via environment variable'...\n" && user="$INSTALL_USERNAME"
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if [[ ! "$user" ]]; then
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read -p "|> enter your desired username: " user
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[[ ! "$user" ]] && printf "|> error: no username entered\n" && exit 1
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fi
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[[ "$INSTALL_PASSWORD" ]] && printf "|> password set to '$(printf "$INSTALL_PASSWORD\n" | sed "s/./\*/g")' via environment variable'...\n" && password="$INSTALL_PASSWORD"
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if [[ ! "$password" ]]; then
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read -s -p "|> enter the password for '$user': " password && printf "\n"
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[[ ! "$password" ]] && printf "|> error: no password entered\n" && exit 1
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read -s -p "|> confirm the password: " password_confirmation && printf "\n"
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[[ "$password_confirmation" != "$password" ]] && printf "|> error: passwords do not match\n" && exit 1
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fi
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printf "|> updating packages...\n"
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apt-get update -y
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printf "|> upgrading installed packages...\n"
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apt-get upgrade -y
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printf "|> installing base packages...\n"
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apt-get install -y \
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sudo \
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tzdata \
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zsh \
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htop \
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iotop \
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iftop \
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neovim \
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curl \
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wget \
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git \
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unzip \
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rsync \
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dropbear \
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openssh-client
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read -p "|> enter additional packages to install: " packages
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[[ "$packages" ]] && packages="$(printf "$packages" | tr '\n' ' ')" && apt-get install -y $packages
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print "|> cleaning up...\n"
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apt-get clean -y
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apt-get autoremove --purge -y
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rm -rf "/var/cache/apt/*"
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printf "|> setting timezone...\n"
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rm -f "/etc/localtime"
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ln -s "/usr/share/zoneinfo/Europe/Berlin" "/etc/localtime"
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printf "|> changing shell from 'ash' to 'zsh'...\n"
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sed -i "s/\/bin\/bash/\/bin\/zsh/g" "/etc/passwd"
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printf "|> creating user '$user'...\n"
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useradd -m -g users -s "/bin/zsh" "$user"
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printf "|> setting password for user '$user'...\n"
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echo -e "$password\n$password" | passwd "$user"
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printf "|> adding user '$user' to group 'disk'...\n" && gpasswd -a "$user" disk > /dev/null
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printf "|> adding user '$user' to group 'lp'...\n" && gpasswd -a "$user" lp > /dev/null
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printf "|> adding user '$user' to group 'wheel'...\n" && gpasswd -a "$user" wheel > /dev/null
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printf "|> adding user '$user' to group 'floppy'...\n" && gpasswd -a "$user" floppy > /dev/null
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printf "|> adding user '$user' to group 'audio'...\n" && gpasswd -a "$user" audio > /dev/null
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printf "|> adding user '$user' to group 'cdrom'...\n" && gpasswd -a "$user" cdrom > /dev/null
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printf "|> adding user '$user' to group 'dialout'...\n" && gpasswd -a "$user" dialout > /dev/null
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printf "|> adding user '$user' to group 'tape'...\n" && gpasswd -a "$user" tape > /dev/null
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printf "|> adding user '$user' to group 'video'...\n" && gpasswd -a "$user" video > /dev/null
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printf "|> adding user '$user' to group 'netdev'...\n" && gpasswd -a "$user" netdev > /dev/null
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printf "|> adding user '$user' to group 'games'...\n" && gpasswd -a "$user" games > /dev/null
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printf "|> adding user '$user' to group 'sudo'...\n" && gpasswd -a "$user" sudo > /dev/null
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printf "|> modifying sudoers...\n"
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sed -i "s/# %sudo ALL=(ALL) ALL/%sudo ALL=(ALL) ALL/" "/etc/sudoers"
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printf "|> disabling root login via ssh...\n"
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sed -i "s/DROPBEAR_EXTRA_ARGS.*/DROPBEAR_EXTRA_ARGS=\"-w\"/" "/etc/default/dropbear"
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[[ -r "$HOME/.ssh/authorized_keys" ]] && printf "|> moving authorized ssh keys from '$USER' to '$user'...\n" && mkdir -p "/home/$user/.ssh" &> /dev/null && mv "$HOME/.ssh/authorized_keys" "/home/$user/.ssh/authorized_keys" && chown -R "$user":users "/home/$user/.ssh"
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printf "|> creating dropbear keys...\n"
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mkdir -p "/etc/dropbear" &> /dev/null
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dropbearkey -t "rsa" -s "4096" -f "/etc/dropbear/dropbear_rsa_host_key"
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dropbearkey -t "dss" -s "1024" -f "/etc/dropbear/dropbear_dss_host_key"
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dropbearkey -t "ecdsa" -s "521" -f "/etc/dropbear/dropbear_ecdsa_host_key"
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printf "|> disabling sshd...\n"
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systemctl disable sshd
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printf "|> enabling and starting dropbear...\n"
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sed -i "s/NO_START.*/NO_START=\"0\"/" "/etc/default/dropbear"
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systemctl enable dropbear --now
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[[ "$swappiness" ]] && printf "|> tuning swappiness...\n" && printf "vm.swappiness="$swappiness"" > "/etc/sysctl.d/99-swappiness.conf"
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printf "|> cleaning '/etc/fstab'...\n"
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rm -rf "/etc/fstab"
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touch "/etc/fstab"
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options="defaults,noatime"
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[[ "$tmpfs_size" ]] && options="$options,size=$tmpfs_size"
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printf "|> setting up '/var/cache' as tmpfs...\n" && rm -rf "/var/cache/*" &> /dev/null && printf "cache\t/var/cache\ttmpfs\t$options 0 0\n" >> "/etc/fstab"
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printf "|> setting up '/var/log' as tmpfs...\n" && rm -rf "/var/log/*" &> /dev/null && printf "logs\t/var/log\ttmpfs\t$options 0 0\n" >> "/etc/fstab"
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printf "|> setting up '/tmp' as tmpfs...\n" && rm -rf "/tmp/*" &> /dev/null && printf "tmp\t/tmp\ttmpfs\t$options,mode=1777 0 0\n" >> "/etc/fstab"
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printf "|> remounting '/etc/fstab' entries...\n"
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mount -a
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printf "|> customizing environment...\n"
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git clone -b "lxc-debian" "https://git.velvettear.de/velvettear/etc.git" "/etc/velvettear"
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chown -R "$user":users "/etc/velvettear"
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ln -s "/etc/velvettear/shell/zshrc.sh" "/home/$user/.zshrc"
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ln -s "/etc/velvettear/shell/zshrc_root.sh" "/root/.zshrc"
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ln -s "/etc/velvettear/shell/zprofile" "/home/$user/.zprofile"
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ln -s "/etc/velvettear/shell/zprofile" "/root/.zprofile"
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printf "|> removing motd...\n"
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rm -f "/etc/motd"
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printf "|>> debian install script finished!\n"
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printf "|>> remote access: 'ssh $user@$(ip -f inet -o address | awk '/eth0/ {print $4}' | cut -d "/" -f1)'\n"
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read -p "|> would you like to delete the install script? [YES/no] " prompt
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[[ "$prompt" ]] && prompt="${prompt,,}"
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[[ ! "$prompt" ]] || [[ "$prompt" == "y" ]] || [[ "prompt" == "yes" ]] && printf "|> deleting script '$0'...\n" && rm -f "$0"
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read -p "|> would you like to reboot now? [YES/no] " prompt
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[[ "$prompt" ]] && prompt="${prompt,,}"
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[[ ! "$prompt" ]] || [[ "$prompt" == "y" ]] || [[ "$prompt" == "yes" ]] && printf "|> rebooting now!\n" && reboot
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