Add CoreDNS DNS server scripts

- ct/coredns.sh: CT script with update support
- install/coredns-install.sh: Install script with default Corefile
- json/coredns.json: JSON metadata

Closes #9665

ct/coredns.sh

@@ -0,0 +1,56 @@
+#!/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: CopilotAssistant (community-scripts)
+# License: MIT | https://github.com/community-scripts/ProxmoxVED/raw/main/LICENSE
+# Source: https://github.com/coredns/coredns
+
+APP="CoreDNS"
+var_tags="${var_tags:-dns;network}"
+var_cpu="${var_cpu:-1}"
+var_ram="${var_ram:-256}"
+var_disk="${var_disk:-1}"
+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 [[ ! -f /usr/local/bin/coredns ]]; then
+    msg_error "No ${APP} Installation Found!"
+    exit
+  fi
+
+  if check_for_gh_release "coredns" "coredns/coredns"; then
+    msg_info "Stopping Service"
+    systemctl stop coredns
+    msg_ok "Stopped Service"
+
+    fetch_and_deploy_gh_release "coredns" "coredns/coredns" "prebuild" "latest" "/usr/local/bin" \
+      "coredns_*_linux_$(dpkg --print-architecture).tgz"
+    chmod +x /usr/local/bin/coredns
+
+    msg_info "Starting Service"
+    systemctl start coredns
+    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} CoreDNS is listening on port 53 (DNS)${CL}"
+echo -e "${TAB}${GATEWAY}${BGN}dns://${IP}${CL}"

install/coredns-install.sh

@@ -0,0 +1,55 @@
+#!/usr/bin/env bash
+
+# Copyright (c) 2021-2026 community-scripts ORG
+# Author: CopilotAssistant (community-scripts)
+# License: MIT | https://github.com/community-scripts/ProxmoxVED/raw/main/LICENSE
+# Source: https://github.com/coredns/coredns
+
+source /dev/stdin <<<"$FUNCTIONS_FILE_PATH"
+color
+verb_ip6
+catch_errors
+setting_up_container
+network_check
+update_os
+
+fetch_and_deploy_gh_release "coredns" "coredns/coredns" "prebuild" "latest" "/usr/local/bin" \
+  "coredns_*_linux_$(dpkg --print-architecture).tgz"
+chmod +x /usr/local/bin/coredns
+
+msg_info "Configuring CoreDNS"
+mkdir -p /etc/coredns
+cat <<EOF >/etc/coredns/Corefile
+. {
+    forward . 1.1.1.1 1.0.0.1
+    cache 30
+    log
+    errors
+    health :8080
+    ready :8181
+}
+EOF
+msg_ok "Configured CoreDNS"
+
+msg_info "Creating Service"
+cat <<EOF >/etc/systemd/system/coredns.service
+[Unit]
+Description=CoreDNS DNS Server
+After=network.target
+
+[Service]
+Type=simple
+ExecStart=/usr/local/bin/coredns -conf /etc/coredns/Corefile
+Restart=on-failure
+RestartSec=5
+LimitNOFILE=1048576
+
+[Install]
+WantedBy=multi-user.target
+EOF
+systemctl enable -q --now coredns
+msg_ok "Created Service"
+
+motd_ssh
+customize
+cleanup_lxc

json/coredns.json

@@ -0,0 +1,38 @@
+{
+    "name": "CoreDNS",
+    "slug": "coredns",
+    "categories": [5],
+    "date_created": "2026-03-27",
+    "type": "ct",
+    "updateable": true,
+    "privileged": false,
+    "interface_port": null,
+    "documentation": "https://coredns.io/manual/toc/",
+    "website": "https://coredns.io/",
+    "logo": "https://cdn.jsdelivr.net/gh/selfhst/icons@main/webp/coredns.webp",
+    "config_path": "/etc/coredns/Corefile",
+    "description": "CoreDNS is a modern, lightweight, and highly extensible DNS server with a plugin-driven architecture. It is the default DNS engine for Kubernetes and ideal as a local authoritative DNS server for homelabs.",
+    "install_methods": [
+        {
+            "type": "default",
+            "script": "ct/coredns.sh",
+            "resources": {
+                "cpu": 1,
+                "ram": 256,
+                "hdd": 1,
+                "os": "Debian",
+                "version": "13"
+            }
+        }
+    ],
+    "default_credentials": {
+        "username": null,
+        "password": null
+    },
+    "notes": [
+        {
+            "text": "Configuration file is located at /etc/coredns/Corefile",
+            "type": "info"
+        }
+    ]
+}