commit a37745f79afa5a1d145470cb19619f1363d29733 Author: velvettear Date: Thu Mar 4 12:42:35 2021 +0100 initial commit diff --git a/README.md b/README.md new file mode 100644 index 0000000..2b187ec --- /dev/null +++ b/README.md @@ -0,0 +1,8 @@ +# lxc + +install scripts for linux containers (lxc) + +## alpine_install.sh +basic, somewhat interactive installer for alpine linux based containers + +`wget https://git.velvettear.de/velvettear/lxc/raw/branch/master/alpine_install.sh -O install.sh && chmod +x install.sh && ./install.sh` diff --git a/alpine_install.sh b/alpine_install.sh new file mode 100755 index 0000000..e114c22 --- /dev/null +++ b/alpine_install.sh @@ -0,0 +1,136 @@ +#!/usr/bin/env sh + +# author: Daniel Sommer +# license: MIT + +# variables +swappiness="25" +tmpfs_size="1G" +repository_protocol="https" + +# execution +printf "|>> executing alpine install script...\n" + +[[ "$INSTALL_USERNAME" ]] && printf "|> username set to '$INSTALL_USERNAME' via environment variable'...\n" && user="$INSTALL_USERNAME" +if [[ ! "$user" ]]; then + read -p "|> enter your desired username: " user + [[ ! "$user" ]] && printf "|> error: no username entered\n" && exit 1 +fi + +[[ "$INSTALL_PASSWORD" ]] && printf "|> password set to '$(printf "$INSTALL_PASSWORD\n" | sed "s/./\*/g")' via environment variable'...\n" && password="$INSTALL_PASSWORD" +if [[ ! "$password" ]]; then + read -s -p "|> enter the password for '$user': " password && printf "\n" + [[ ! "$password" ]] && printf "|> error: no password entered\n" && exit 1 + read -s -p "|> confirm the password: " password_confirmation && printf "\n" + [[ "$password_confirmation" != "$password" ]] && printf "|> error: passwords do not match\n" && exit 1 +fi + +[[ "$repository_protocol" ]] && printf "|> setting protocol for all repositories to '$repository_protocol'\n" && sed -i "s/http/$repository_protocol/g" "/etc/apk/repositories" + +printf "|> removing motd...\n" +rm -f "/etc/motd" + +printf "|> updating packages...\n" +apk update --progress + +printf "|> upgrading installed packages...\n" +apk upgrade --progress --no-cache + +printf "|> installing base packages...\n" +apk add --force-refresh --no-cache --progress \ + sudo \ + tzdata \ + zsh \ + htop \ + iotop \ + iftop \ + neovim \ + curl \ + wget \ + git \ + unzip \ + rsync \ + dropbear \ + openssh-client \ + rxvt-unicode-terminfo + +read -p "|> enter additional packages to install: " packages +[[ "$packages" ]] && packages="$(printf "$packages" | tr '\n' ' ')" && apk add --force-refresh --no-cache --progres $packages + +printf "|> setting timezone...\n" +setup-timezone -z "Europe/Berlin" + +printf "|> changing shell from 'ash' to 'zsh'...\n" +sed -i "s/\/bin\/ash/\/bin\/zsh/g" "/etc/passwd" + +printf "|> creating user '$user'...\n" +adduser -D -G users -s "/bin/zsh" "$user" + +printf "|> setting password for user '$user'...\n" +echo -e "$password\n$password" | passwd "$user" + +printf "|> adding user '$user' to group 'disk'...\n" && addgroup "$user" disk +printf "|> adding user '$user' to group 'lp'...\n" && addgroup "$user" lp +printf "|> adding user '$user' to group 'wheel'...\n" && addgroup "$user" wheel +printf "|> adding user '$user' to group 'floppy'...\n" && addgroup "$user" floppy +printf "|> adding user '$user' to group 'audio'...\n" && addgroup "$user" audio +printf "|> adding user '$user' to group 'cdrom'...\n" && addgroup "$user" cdrom +printf "|> adding user '$user' to group 'dialout'...\n" && addgroup "$user" dialout +printf "|> adding user '$user' to group 'tape'...\n" && addgroup "$user" tape +printf "|> adding user '$user' to group 'video'...\n" && addgroup "$user" video +printf "|> adding user '$user' to group 'netdev'...\n" && addgroup "$user" netdev +printf "|> adding user '$user' to group 'games'...\n" && addgroup "$user" games +printf "|> adding user '$user' to group 'cdrw'...\n" && addgroup "$user" cdrw +printf "|> adding user '$user' to group 'usb'...\n" && addgroup "$user" usb + +printf "|> modifying sudoers...\n" +sed -i "s/# %wheel ALL=(ALL) ALL/%wheel ALL=(ALL) ALL/" "/etc/sudoers" + +printf "|> disabling root login via ssh...\n" +sed -i "s/DROPBEAR_OPTS.*/DROPBEAR_OPTS=\"-w\"/" "/etc/conf.d/dropbear" + +[[ -r "$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/$user/.ssh" + +printf "|> creating dropbear keys...\n" +mkdir -p "/etc/dropbear" &> /dev/null +dropbearkey -t "rsa" -s "4096" -f "/etc/dropbear/dropbear_rsa_host_key" +dropbearkey -t "dss" -s "1024" -f "/etc/dropbear/dropbear_dss_host_key" +dropbearkey -t "ecdsa" -s "521" -f "/etc/dropbear/dropbear_ecdsa_host_key" + +printf "|> enabling and starting dropbear...\n" +rc-update add "dropbear" +rc-service "dropbear" restart + +[[ "$swappiness" ]] && printf "|> tuning swappiness...\n" && printf "vm.swappiness="$swappiness"" > "/etc/sysctl.d/99-swappiness.conf" + +printf "|> cleaning '/etc/fstab'...\n" +rm -rf "/etc/fstab" +touch "/etc/fstab" + +options="defaults,noatime" +[[ "$tmpfs_size" ]] && options="$options,size=$tmpfs_size" +printf "|> setting up '/var/cache' as tmpfs...\n" && rm -rf "/var/cache/*" &> /dev/null && printf "cache\t/var/cache\ttmpfs\t$options 0 0\n" >> "/etc/fstab" +printf "|> setting up '/var/log' as tmpfs...\n" && rm -rf "/var/log/*" &> /dev/null && printf "logs\t/var/log\ttmpfs\t$options 0 0\n" >> "/etc/fstab" +printf "|> setting up '/tmp' as tmpfs...\n" && rm -rf "/tmp/*" &> /dev/null && printf "tmp\t/tmp\ttmpfs\t$options,mode=1777 0 0\n" >> "/etc/fstab" + +printf "|> remounting '/etc/fstab' entries...\n" +mount -a + +printf "|> customizing environment...\n" +git clone "https://git.velvettear.de/velvettear/alpine-linux.git" "/etc/velvettear" +chown -R "$user":users "/etc/velvettear" +ln -s "/etc/velvettear/shell/zshrc.sh" "/home/$user/.zshrc" +ln -s "/etc/velvettear/shell/zshrc_root.sh" "/root/.zshrc" +ln -s "/etc/velvettear/shell/zprofile" "/home/$user/.zprofile" +ln -s "/etc/velvettear/shell/zprofile" "/root/.zprofile" + +printf "|>> alpine install script finished!\n" +printf "|>> remote access: 'ssh $user@$(ip -f inet -o address | awk '/eth0/ {print $4}' | cut -d "/" -f1)'\n" + +read -p "|> would you like to delete the install script? [YES/no] " prompt +[[ "$prompt" ]] && prompt="$(printf "$prompt" | tr "[:lower:]")" +[[ ! "$prompt" ]] || [[ "$prompt" == "y" ]] || [[ "prompt" == "yes" ]] && printf "|> deleting script '$0'...\n" && rm -f "$0" + +read -p "|> would you like to reboot now? [YES/no] " prompt +[[ "$prompt" ]] && prompt="$(printf $prompt | tr "[:lower:]")" +[[ ! "$prompt" ]] || [[ "$prompt" == "y" ]] || [[ "$prompt" == "yes" ]] && printf "|> rebooting now!\n" && reboot