Add borgbackup server

Use alpine 3.23

ct/alpine-borgbackup-server.sh

@@ -0,0 +1,49 @@
+#!/usr/bin/env bash
+source <(curl -fsSL https://raw.githubusercontent.com/community-scripts/ProxmoxVE/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="${var_tags:-alpine;backup}"            # Max 2 tags, semicolon-separated
+var_cpu="${var_cpu:-2}"                         # CPU cores: 1-4 typical
+var_ram="${var_ram:-1024}"                      # RAM in MB: 512, 1024, 2048, etc.
+var_disk="${var_disk:-20}"                      # Disk in GB: 6, 8, 10, 20 typical
+var_os="${var_os:-alpine}"                      # OS: debian, ubuntu, alpine
+var_version="${var_version:-3.23}"              # OS Version: 13 (Debian), 24.04 (Ubuntu), 3.23 (Alpine)
+var_unprivileged="${var_unprivileged:-1}"       # 1=unprivileged (secure), 0=privileged (for Docker/Podman)
+
+header_info "$APP" # Display app name and setup header
+variables          # Initialize build.func variables
+color              # Load color variables for output
+catch_errors       # Enable error handling with automatic exit on failure
+
+function update_script() {
+  header_info
+
+  if [[ ! -f /usr/bin/borg ]]; then
+    msg_error "No ${APP} Installation Found!"
+    exit
+  fi
+
+  msg_info "Updating $APP LXC"
+  $STD apk -U upgrade
+  msg_ok "Updated $APP LXC"
+
+  msg_ok "Updated successfully!"
+  exit 0
+}
+
+start
+build_container
+description
+
+# ============================================================================
+# COMPLETION MESSAGE
+# ============================================================================
+msg_ok "Completed successfully!\n"
+echo -e "${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}"

frontend/public/json/alpine-borgbackup-server.json

@@ -0,0 +1,44 @@
+{
+  "name": "Alpine-BorgBackup-Server",
+  "slug": "alpine-borgbackup-server",
+  "categories": [
+    7
+  ],
+  "date_created": "2026-02-16",
+  "type": "ct",
+  "updateable": true,
+  "privileged": false,
+  "interface_port": null,
+  "documentation": "https://www.borgbackup.org/",
+  "website": "https://www.borgbackup.org/",
+  "logo": "https://cdn.jsdelivr.net/gh/selfhst/icons@main/webp/borg.webp",
+  "config_path": "",
+  "description": "Alpine-BorgBackup-Server is a lightweight containerized backup server based on Alpine Linux and BorgBackup. It provides a secure and efficient way to manage your backups with minimal resource usage, making it ideal for Proxmox VE environments.",
+  "install_methods": [
+    {
+      "type": "default",
+      "script": "ct/alpine-borgbackup-server.sh",
+      "resources": {
+        "cpu": 2,
+        "ram": 1024,
+        "hdd": 20,
+        "os": "alpine",
+        "version": "3.23"
+      }
+    }
+  ],
+  "default_credentials": {
+    "username": null,
+    "password": null
+  },
+  "notes": [
+    {
+      "type": "info",
+      "content": "After installation, use the 'update' option in the script to configure SSH access and/or password authentication."
+    },
+    {
+      "type": "info",
+      "content": "Refer to the official BorgBackup documentation for setup and usage instructions."
+    }
+  ]
+}

install/alpine-borgbackup-server-install.sh

@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+
+# 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/
+
+source /dev/stdin <<<"$FUNCTIONS_FILE_PATH"
+color
+verb_ip6
+catch_errors
+setting_up_container
+network_check
+update_os
+
+msg_info "Installing BorgBackup"
+$STD apk add --no-cache borgbackup openssh
+$STD rc-update add sshd
+$STD rc-service sshd start
+msg_ok "Installed BorgBackup"
+
+motd_ssh
+customize
+cleanup_lxc