feat(netbird): add NetBird installation and update scripts with configuration details

ct/netbird.sh

@@ -0,0 +1,55 @@
+#!/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: MickLesk (CanbiZ)
+# License: MIT | https://github.com/community-scripts/ProxmoxVED/raw/main/LICENSE
+# Source: https://netbird.io
+
+APP="NetBird"
+var_tags="${var_tags:-network;vpn;connectivity}"
+var_cpu="${var_cpu:-1}"
+var_ram="${var_ram:-512}"
+var_disk="${var_disk:-4}"
+var_os="${var_os:-debian}"
+var_version="${var_version:-13}"
+var_unprivileged="${var_unprivileged:-0}"
+
+header_info "$APP"
+variables
+color
+catch_errors
+
+function update_script() {
+  header_info
+  check_container_storage
+  check_container_resources
+
+  if ! command -v netbird &>/dev/null; then
+    msg_error "No ${APP} Installation Found!"
+    exit
+  fi
+
+  msg_info "Stopping Service"
+  systemctl stop netbird
+  msg_ok "Stopped Service"
+
+  msg_info "Updating ${APP}"
+  $STD apt update
+  $STD apt install -y --only-upgrade netbird
+  msg_ok "Updated ${APP}"
+
+  msg_info "Starting Service"
+  systemctl start netbird
+  msg_ok "Started Service"
+  msg_ok "Updated successfully!"
+  exit
+}
+
+start
+build_container
+description
+
+msg_ok "Completed Successfully!\n"
+echo -e "${CREATING}${GN}${APP} setup has been successfully initialized!${CL}"
+echo -e "${INFO}${YW} Connect this peer to your NetBird network:${CL}"
+echo -e "${TAB}${GATEWAY}${BGN}netbird up --setup-key <YOUR_SETUP_KEY>${CL}"

install/netbird-install.sh

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+#!/usr/bin/env bash
+
+# Copyright (c) 2021-2026 community-scripts ORG
+# Author: MickLesk (CanbiZ)
+# License: MIT | https://github.com/community-scripts/ProxmoxVED/raw/main/LICENSE
+# Source: https://netbird.io
+
+source /dev/stdin <<<"$FUNCTIONS_FILE_PATH"
+color
+verb_ip6
+catch_errors
+setting_up_container
+network_check
+update_os
+
+msg_info "Installing NetBird Client"
+curl -sSL https://pkgs.netbird.io/debian/public.key | gpg --dearmor --output /usr/share/keyrings/netbird-archive-keyring.gpg
+echo 'deb [signed-by=/usr/share/keyrings/netbird-archive-keyring.gpg] https://pkgs.netbird.io/debian stable main' >/etc/apt/sources.list.d/netbird.list
+$STD apt update
+$STD apt install -y netbird
+msg_ok "Installed NetBird Client"
+
+msg_info "Enabling Service"
+systemctl enable -q --now netbird
+msg_ok "Enabled Service"
+
+motd_ssh
+customize
+cleanup_lxc

json/netbird.json

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+{
+    "name": "NetBird",
+    "slug": "netbird",
+    "categories": [
+        4
+    ],
+    "date_created": "2026-05-19",
+    "type": "ct",
+    "updateable": true,
+    "privileged": true,
+    "interface_port": null,
+    "documentation": "https://docs.netbird.io/",
+    "website": "https://netbird.io/",
+    "logo": "https://cdn.jsdelivr.net/gh/selfhst/icons@main/webp/netbird.webp",
+    "description": "NetBird is an open-source, WireGuard-based overlay network that creates secure peer-to-peer connections between devices. The NetBird client (agent) allows this container to join a NetBird network as a routing peer, enabling secure remote access to your Proxmox network from anywhere.",
+    "install_methods": [
+        {
+            "type": "default",
+            "script": "ct/netbird.sh",
+            "config_path": "",
+            "resources": {
+                "cpu": 1,
+                "ram": 512,
+                "hdd": 4,
+                "os": "Debian",
+                "version": "13"
+            }
+        }
+    ],
+    "default_credentials": {
+        "username": null,
+        "password": null
+    },
+    "notes": [
+        {
+            "text": "This installs the NetBird client (agent). After setup, connect the peer to your network by running: netbird up --setup-key <YOUR_SETUP_KEY>",
+            "type": "info"
+        },
+        {
+            "text": "This container runs as privileged to allow access to the TUN device required by NetBird.",
+            "type": "warning"
+        }
+    ]
+}