feat: add NextDNS minimal Debian LXC

ct/nextdns.sh

@@ -0,0 +1,55 @@
+#!/usr/bin/env bash
+# Engine comes from community-scripts/core; this repo only ships the scripts.
+# A local core checkout wins (COMMUNITY_SCRIPTS_CORE_DIR, else a sibling ../core),
+# so a fork or branch of core can be tested without editing this file.
+_cs_boot="${COMMUNITY_SCRIPTS_CORE_DIR:-$(dirname "${BASH_SOURCE[0]}")/../../core}/core/build.func"
+source "$_cs_boot" 2>/dev/null || source <(curl -fsSL "${COMMUNITY_SCRIPTS_CORE_URL:-https://raw.githubusercontent.com/community-scripts/core/main}/core/build.func")
+# Copyright (c) 2021-2026 community-scripts ORG
+# Author: Nick Berardi (nberardi)
+# License: MIT | https://github.com/community-scripts/ProxmoxVED/raw/main/LICENSE
+# Source: https://nextdns.io | https://github.com/nextdns/nextdns
+
+APP="NextDNS"
+var_tags="${var_tags:-dns;adblock;network}"
+var_cpu="${var_cpu:-1}"
+var_ram="${var_ram:-512}"
+var_disk="${var_disk:-2}"
+var_os="${var_os:-debian}"
+var_version="${var_version:-13}"
+#var_arm64="${var_arm64:-no}" # unset = ask the user; set yes/no only when verified
+var_unprivileged="${var_unprivileged:-1}"
+export var_nextdns_profile="${var_nextdns_profile:-}"
+
+header_info "$APP"
+variables
+color
+catch_errors
+
+function update_script() {
+  header_info
+  check_container_storage
+  check_container_resources
+
+  if [[ ! -x /usr/bin/nextdns ]]; then
+    msg_error "No ${APP} Installation Found!"
+    exit
+  fi
+
+  msg_info "Updating ${APP}"
+  $STD apt update
+  $STD apt install -y nextdns
+  msg_ok "Updated ${APP}"
+  msg_ok "Updated successfully!"
+  exit
+}
+
+start
+build_container
+description
+
+msg_ok "Completed Successfully!\n"
+echo -e "${CREATING}${GN}${APP} setup has been successfully initialized!${CL}"
+echo -e "${INFO}${YW}NextDNS is configured and serving DNS on:${CL}"
+echo -e "${GATEWAY}${BGN}${IP}:53${CL} ${YW}(TCP/UDP)${CL}"
+echo -e "${INFO}${YW}Profiles are managed at: https://my.nextdns.io${CL}"
+echo -e "${INFO}${YW}Point DHCP clients or your router upstream DNS at the container IP.${CL}"

install/nextdns-install.sh

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+#!/usr/bin/env bash
+
+# Copyright (c) 2021-2026 community-scripts ORG
+# Author: Nick Berardi (nberardi)
+# License: MIT | https://github.com/community-scripts/ProxmoxVED/raw/main/LICENSE
+# Source: https://nextdns.io | https://github.com/nextdns/nextdns
+
+source /dev/stdin <<<"$FUNCTIONS_FILE_PATH"
+color
+verb_ip6
+catch_errors
+setting_up_container
+network_check
+update_os
+
+setup_deb822_repo \
+  "nextdns" \
+  "https://repo.nextdns.io/nextdns.gpg" \
+  "https://repo.nextdns.io/deb" \
+  "stable" \
+  "main"
+
+msg_info "Installing NextDNS"
+$STD apt install -y nextdns
+msg_ok "Installed NextDNS"
+
+if [[ -z "${var_nextdns_profile:-}" ]]; then
+  echo -e "${INFO}${YW}Get your profile ID from: https://my.nextdns.io${CL}"
+  read -r -p "${TAB3}NextDNS Profile ID: " var_nextdns_profile
+fi
+var_nextdns_profile="${var_nextdns_profile//[[:space:]]/}"
+if [[ -z "${var_nextdns_profile}" ]]; then
+  msg_error "NextDNS Profile ID is required (set var_nextdns_profile or enter it when prompted)"
+  exit 1
+fi
+
+msg_info "Configuring NextDNS"
+nextdns install \
+  -profile "${var_nextdns_profile}" \
+  -report-client-info \
+  -setup-router
+msg_ok "Configured NextDNS (profile ${var_nextdns_profile})"
+
+motd_ssh
+customize
+cleanup_lxc

json/nextdns.json

@@ -0,0 +1,66 @@
+{
+  "name": "NextDNS",
+  "slug": "nextdns",
+  "categories": [
+    5
+  ],
+  "date_created": "2026-08-23",
+  "type": "ct",
+  "updateable": true,
+  "privileged": false,
+  "interface_port": null,
+  "documentation": "https://github.com/nextdns/nextdns/wiki",
+  "website": "https://nextdns.io/",
+  "repository": "https://github.com/nextdns/nextdns",
+  "logo": "https://cdn.jsdelivr.net/gh/selfhst/icons@main/webp/nextdns.webp",
+  "description": "NextDNS is a DNS-over-HTTPS (DoH) client and resolver that blocks ads, trackers and malware using cloud-managed profiles. This script installs a minimal Debian LXC with the official NextDNS CLI from the NextDNS apt repository, prompts for your profile ID, and configures router mode so DNS is served on TCP/UDP port 53.",
+  "install_methods": [
+    {
+      "type": "default",
+      "script": "ct/nextdns.sh",
+      "config_path": "/etc/nextdns.conf",
+      "resources": {
+        "cpu": 1,
+        "ram": 512,
+        "hdd": 2,
+        "os": "Debian",
+        "version": "13"
+      }
+    }
+  ],
+  "default_credentials": {
+    "username": null,
+    "password": null
+  },
+  "app_vars": [
+    {
+      "name": "var_nextdns_profile",
+      "label": "NextDNS Profile ID",
+      "type": "text",
+      "required": true,
+      "help": "From https://my.nextdns.io — used with nextdns install -profile … -report-client-info -setup-router"
+    }
+  ],
+  "notes": [
+    {
+      "text": "During install you will be asked for your NextDNS profile ID (or pass var_nextdns_profile). The script runs: nextdns install -profile <id> -report-client-info -setup-router",
+      "type": "info"
+    },
+    {
+      "text": "Create or copy your profile ID from https://my.nextdns.io before running the script.",
+      "type": "info"
+    },
+    {
+      "text": "After install, NextDNS listens on TCP/UDP port 53. Point DHCP clients at the container IP:53, or set the container as upstream DNS on your router. There is no local web UI (profiles are managed at my.nextdns.io).",
+      "type": "info"
+    },
+    {
+      "text": "Router mode (-setup-router) makes this LXC the DNS server for your network.",
+      "type": "info"
+    },
+    {
+      "text": "Updates use the official NextDNS apt repository (repo.nextdns.io). Run the container update script or apt upgrade inside the LXC.",
+      "type": "info"
+    }
+  ]
+}