ProxmoxVED/ct/alpine-borgbackup-server.sh
2026-02-17 09:04:47 +01:00

107 lines
3.3 KiB
Bash

#!/usr/bin/env bash
source <(curl -fsSL https://raw.githubusercontent.com/community-scripts/ProxmoxVED/main/misc/build.func)
# Copyright (c) 2021-2026 community-scripts ORG
# Author: Sander Koenders (sanderkoenders)
# License: MIT | https://github.com/community-scripts/ProxmoxVED/raw/main/LICENSE
# Source: https://www.borgbackup.org/
APP="Alpine-BorgBackup-Server"
var_tags="${var_tags:-alpine;backup}"
var_cpu="${var_cpu:-2}"
var_ram="${var_ram:-1024}"
var_disk="${var_disk:-20}"
var_os="${var_os:-alpine}"
var_version="${var_version:-3.23}"
var_unprivileged="${var_unprivileged:-1}"
header_info "$APP"
variables
color
catch_errors
function update_script() {
header_info
if [[ ! -f /usr/bin/borg ]]; then
msg_error "No ${APP} Installation Found!"
exit
fi
CHOICE=$(msg_menu "BorgBackup Server Update Options" \
"1" "Update BorgBackup Server" \
"2" "Reset SSH Access" \
"3" "Enable password authentication for backup user (not recommended, use SSH key instead)" \
"4" "Disable password authentication for backup user (recommended for security, use SSH key)")
case $CHOICE in
1)
msg_info "Updating $APP LXC"
$STD apk -U upgrade
msg_ok "Updated $APP LXC successfully!"
;;
2)
if [[ "${PHS_SILENT:-0}" == "1" ]]; then
msg_warn "Reset SSH Public key requires interactive mode, skipping."
exit
fi
msg_info "Setting up SSH Public Key for backup user"
msg_info "Please paste your SSH public key (e.g., ssh-rsa AAAAB3... user@host): \n"
read -p "Key: " SSH_PUBLIC_KEY
echo
if [[ -z "$SSH_PUBLIC_KEY" ]]; then
msg_error "No SSH public key provided!"
exit 1
fi
if [[ ! "$SSH_PUBLIC_KEY" =~ ^(ssh-rsa|ssh-dss|ssh-ed25519|ecdsa-sha2-) ]]; then
msg_error "Invalid SSH public key format!"
exit 1
fi
msg_info "Setting up SSH access"
mkdir -p /home/backup/.ssh
echo "$SSH_PUBLIC_KEY" > /home/backup/.ssh/authorized_keys
chown -R backup:backup /home/backup/.ssh
chmod 700 /home/backup/.ssh
chmod 600 /home/backup/.ssh/authorized_keys
msg_ok "SSH access configured for backup user"
;;
3)
if [[ "${PHS_SILENT:-0}" == "1" ]]; then
msg_warn "Enabling password authentication requires interactive mode, skipping."
exit
fi
msg_info "Enabling password authentication for backup user"
msg_warn "Password authentication is less secure than using SSH keys. Consider using SSH keys instead."
passwd backup
sed -i 's/^#*\s*PasswordAuthentication\s\+\(yes\|no\)/PasswordAuthentication yes/' /etc/ssh/sshd_config
rc-service sshd restart
msg_ok "Password authentication enabled for backup user"
;;
4)
msg_info "Disabling password authentication for backup user"
sed -i 's/^#*\s*PasswordAuthentication\s\+\(yes\|no\)/PasswordAuthentication no/' /etc/ssh/sshd_config
rc-service sshd restart
msg_ok "Password authentication disabled for backup user"
;;
esac
exit 0
}
start
build_container
description
msg_ok "Completed successfully!\n"
echo -e "${CREATING}${GN}${APP} setup has been successfully initialized!${CL}"
echo -e "${INFO}${YW}Connection information:${CL}"
echo -e "${TAB}${GATEWAY}${BGN}ssh backup@${IP}${CL}"
echo -e "${TAB}${VERIFYPW}${YW}To set SSH key, run this script with the 'update' option and select option 2${CL}"