opnsense-VM: Use ip link to verify bridge existence

Replace grep on /etc/network/interfaces with ip link show checks when validating bridge interfaces.. This removes dependency on the interfaces file (which may not reflect actual links) and updates error messages accordingly in default_settings and advanced_settings functions.

CHANGELOG.md

@@ -409,6 +409,10 @@ Exercise vigilance regarding copycat or coat-tailing sites that seek to exploit
 
 ## 2026-02-25
 
+### 🆕 New Scripts
+
+  - Zerobyte ([#12321](https://github.com/community-scripts/ProxmoxVE/pull/12321))
+
 ### 🚀 Updated Scripts
 
   - #### 🐞 Bug Fixes

ct/vikunja.sh

@@ -65,7 +65,6 @@ function update_script() {
     msg_ok "Stopped Service"
 
     fetch_and_deploy_gh_release "vikunja" "go-vikunja/vikunja" "binary"
-    $STD systemctl daemon-reload
 
     msg_info "Starting Service"
     systemctl start vikunja

ct/zerobyte.sh

@@ -0,0 +1,71 @@
+#!/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: community-scripts
+# License: MIT | https://github.com/community-scripts/ProxmoxVE/raw/main/LICENSE
+# Source: https://github.com/nicotsx/zerobyte
+
+APP="Zerobyte"
+var_tags="${var_tags:-backup;encryption;restic}"
+var_cpu="${var_cpu:-2}"
+var_ram="${var_ram:-6144}"
+var_disk="${var_disk:-10}"
+var_os="${var_os:-debian}"
+var_version="${var_version:-13}"
+var_unprivileged="${var_unprivileged:-1}"
+
+header_info "$APP"
+variables
+color
+catch_errors
+
+function update_script() {
+  header_info
+  check_container_storage
+  check_container_resources
+
+  if [[ ! -d /opt/zerobyte ]]; then
+    msg_error "No ${APP} Installation Found!"
+    exit
+  fi
+
+  if check_for_gh_release "zerobyte" "nicotsx/zerobyte"; then
+    msg_info "Stopping Service"
+    systemctl stop zerobyte
+    msg_ok "Stopped Service"
+
+    msg_info "Backing up Configuration"
+    cp /opt/zerobyte/.env /opt/zerobyte.env.bak
+    msg_ok "Backed up Configuration"
+    
+    NODE_VERSION="24" setup_nodejs
+    CLEAN_INSTALL=1 fetch_and_deploy_gh_release "zerobyte" "nicotsx/zerobyte" "tarball"
+
+    msg_info "Building Zerobyte"
+    export NODE_OPTIONS="--max-old-space-size=3072"
+    cd /opt/zerobyte
+    $STD bun install
+    $STD node ./node_modules/vite/bin/vite.js build
+    msg_ok "Built Zerobyte"
+
+    msg_info "Restoring Configuration"
+    cp /opt/zerobyte.env.bak /opt/zerobyte/.env
+    rm -f /opt/zerobyte.env.bak
+    msg_ok "Restored Configuration"
+
+    msg_info "Starting Service"
+    systemctl start zerobyte
+    msg_ok "Started Service"
+    msg_ok "Updated successfully!"
+  fi
+  exit
+}
+
+start
+build_container
+description
+
+msg_ok "Completed Successfully!\n"
+echo -e "${CREATING}${GN}${APP} setup has been successfully initialized!${CL}"
+echo -e "${INFO}${YW} Access it using the following URL:${CL}"
+echo -e "${TAB}${GATEWAY}${BGN}http://${IP}:4096${CL}"

frontend/public/json/zerobyte.json

@@ -0,0 +1,40 @@
+{
+    "name": "Zerobyte",
+    "slug": "zerobyte",
+    "categories": [
+        7
+    ],
+    "date_created": "2026-02-25",
+    "type": "ct",
+    "updateable": true,
+    "privileged": false,
+    "interface_port": 4096,
+    "documentation": "https://github.com/nicotsx/zerobyte#readme",
+    "website": "https://github.com/nicotsx/zerobyte",
+    "logo": "https://cdn.jsdelivr.net/gh/selfhst/icons@main/webp/zerobyte.webp",
+    "config_path": "/opt/zerobyte/.env",
+    "description": "Zerobyte is a backup automation tool built on top of Restic that provides a modern web interface to schedule, manage, and monitor encrypted backups across multiple storage backends including NFS, SMB, WebDAV, SFTP, S3, and local directories.",
+    "install_methods": [
+        {
+            "type": "default",
+            "script": "ct/zerobyte.sh",
+            "resources": {
+                "cpu": 2,
+                "ram": 6144,
+                "hdd": 10,
+                "os": "Debian",
+                "version": "13"
+            }
+        }
+    ],
+    "default_credentials": {
+        "username": null,
+        "password": null
+    },
+    "notes": [
+        {
+            "text": "For remote mount support (NFS, SMB, WebDAV, SFTP), enable FUSE device passthrough on the LXC container. (FUSE is pre-configured)",
+            "type": "info"
+        }
+    ]
+}

install/zerobyte-install.sh

@@ -0,0 +1,96 @@
+#!/usr/bin/env bash
+
+# Copyright (c) 2021-2026 community-scripts ORG
+# Author: community-scripts
+# License: MIT | https://github.com/community-scripts/ProxmoxVE/raw/main/LICENSE
+# Source: https://github.com/nicotsx/zerobyte
+
+source /dev/stdin <<<"$FUNCTIONS_FILE_PATH"
+color
+verb_ip6
+catch_errors
+setting_up_container
+network_check
+update_os
+
+msg_info "Installing Dependencies"
+echo "davfs2 davfs2/suid_file boolean false" | debconf-set-selections
+$STD apt-get install -y \
+  bzip2 \
+  fuse3 \
+  sshfs \
+  davfs2 \
+  openssh-client
+msg_ok "Installed Dependencies"
+
+fetch_and_deploy_gh_release "restic" "restic/restic" "singlefile" "latest" "/usr/local/bin" "restic_*_linux_amd64.bz2"
+mv /usr/local/bin/restic /usr/local/bin/restic.bz2
+bzip2 -d /usr/local/bin/restic.bz2
+chmod +x /usr/local/bin/restic
+
+fetch_and_deploy_gh_release "rclone" "rclone/rclone" "prebuild" "latest" "/opt/rclone" "rclone-*-linux-amd64.zip"
+ln -sf /opt/rclone/rclone /usr/local/bin/rclone
+
+fetch_and_deploy_gh_release "shoutrrr" "nicholas-fedor/shoutrrr" "prebuild" "latest" "/opt/shoutrrr" "shoutrrr_linux_amd64_*.tar.gz"
+ln -sf /opt/shoutrrr/shoutrrr /usr/local/bin/shoutrrr
+
+msg_info "Installing Bun"
+export BUN_INSTALL="/root/.bun"
+curl -fsSL https://bun.sh/install | $STD bash
+ln -sf /root/.bun/bin/bun /usr/local/bin/bun
+ln -sf /root/.bun/bin/bunx /usr/local/bin/bunx
+msg_ok "Installed Bun"
+
+NODE_VERSION="24" setup_nodejs
+fetch_and_deploy_gh_release "zerobyte" "nicotsx/zerobyte" "tarball"
+
+msg_info "Building Zerobyte (Patience)"
+cd /opt/zerobyte
+export VITE_RESTIC_VERSION=$(cat ~/.restic)
+export VITE_RCLONE_VERSION=$(cat ~/.rclone)
+export VITE_SHOUTRRR_VERSION=$(cat ~/.shoutrrr)
+export NODE_OPTIONS="--max-old-space-size=3072"
+$STD bun install
+$STD node ./node_modules/vite/bin/vite.js build
+msg_ok "Built Zerobyte"
+
+msg_info "Configuring Zerobyte"
+mkdir -p /var/lib/zerobyte/{data,restic/cache,repositories,volumes}
+APP_SECRET=$(openssl rand -hex 32)
+cat <<EOF >/opt/zerobyte/.env
+BASE_URL=http://${LOCAL_IP}:4096
+APP_SECRET=${APP_SECRET}
+PORT=4096
+ZEROBYTE_DATABASE_URL=/var/lib/zerobyte/data/zerobyte.db
+RESTIC_CACHE_DIR=/var/lib/zerobyte/restic/cache
+ZEROBYTE_REPOSITORIES_DIR=/var/lib/zerobyte/repositories
+ZEROBYTE_VOLUMES_DIR=/var/lib/zerobyte/volumes
+MIGRATIONS_PATH=/opt/zerobyte/app/drizzle
+NODE_ENV=production
+EOF
+msg_ok "Configured Zerobyte"
+
+msg_info "Creating Service"
+cat <<EOF >/etc/systemd/system/zerobyte.service
+[Unit]
+Description=Zerobyte Backup Automation
+After=network.target
+
+[Service]
+Type=simple
+User=root
+WorkingDirectory=/opt/zerobyte
+EnvironmentFile=/opt/zerobyte/.env
+ExecStart=/usr/local/bin/bun .output/server/index.mjs
+Restart=on-failure
+RestartSec=5
+
+[Install]
+WantedBy=multi-user.target
+EOF
+systemctl enable -q --now zerobyte
+msg_ok "Created Service"
+
+motd_ssh
+customize
+cleanup_lxc

vm/opnsense-vm.sh

@@ -288,8 +288,8 @@ function default_settings() {
   echo -e "${DGN}Using Hostname: ${BGN}${HN}${CL}"
   echo -e "${DGN}Allocated Cores: ${BGN}${CORE_COUNT}${CL}"
   echo -e "${DGN}Allocated RAM: ${BGN}${RAM_SIZE}${CL}"
-  if ! grep -q "^iface ${BRG}" /etc/network/interfaces; then
-    msg_error "Bridge '${BRG}' does not exist in /etc/network/interfaces"
+  if ! ip link show "${BRG}" &>/dev/null; then
+    msg_error "Bridge '${BRG}' does not exist"
     exit
   else
     echo -e "${DGN}Using LAN Bridge: ${BGN}${BRG}${CL}"
@@ -305,8 +305,8 @@ function default_settings() {
     if [ "$NETWORK_MODE" = "dual" ]; then
       echo -e "${DGN}Network Mode: ${BGN}Dual Interface (Firewall)${CL}"
       echo -e "${DGN}Using WAN MAC Address: ${BGN}${WAN_MAC}${CL}"
-      if ! grep -q "^iface ${WAN_BRG}" /etc/network/interfaces; then
-        msg_error "Bridge '${WAN_BRG}' does not exist in /etc/network/interfaces"
+      if ! ip link show "${WAN_BRG}" &>/dev/null; then
+        msg_error "Bridge '${WAN_BRG}' does not exist"
         exit
       else
         echo -e "${DGN}Using WAN Bridge: ${BGN}${WAN_BRG}${CL}"
@@ -424,8 +424,8 @@ function advanced_settings() {
     if [ -z $BRG ]; then
       BRG="vmbr0"
     fi
-    if ! grep -q "^iface ${BRG}" /etc/network/interfaces; then
-      msg_error "Bridge '${BRG}' does not exist in /etc/network/interfaces"
+    if ! ip link show "${BRG}" &>/dev/null; then
+      msg_error "Bridge '${BRG}' does not exist"
       exit
     fi
     echo -e "${DGN}Using LAN Bridge: ${BGN}$BRG${CL}"
@@ -474,8 +474,8 @@ function advanced_settings() {
     if [ -z $WAN_BRG ]; then
       WAN_BRG="vmbr1"
     fi
-    if ! grep -q "^iface ${WAN_BRG}" /etc/network/interfaces; then
-      msg_error "WAN Bridge '${WAN_BRG}' does not exist in /etc/network/interfaces"
+    if ! ip link show "${WAN_BRG}" &>/dev/null; then
+      msg_error "WAN Bridge '${WAN_BRG}' does not exist"
       exit
     fi
     echo -e "${DGN}Using WAN Bridge: ${BGN}$WAN_BRG${CL}"