From 924a86dfb609b9f87ce0ca11ea9b1d3182154e93 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Joakim=20S=C3=B8rensen?= <joasoe@proton.me>
Date: Fri, 1 Aug 2025 09:51:48 +0100
Subject: [PATCH] Add nameservers to supervisor system health response
 (#149749)

---
 homeassistant/components/hassio/strings.json     |  1 +
 homeassistant/components/hassio/system_health.py | 10 ++++++++++
 tests/components/hassio/test_system_health.py    |  5 +++++
 3 files changed, 16 insertions(+)

diff --git a/homeassistant/components/hassio/strings.json b/homeassistant/components/hassio/strings.json
index 6d67b4b79c0..1e312ee34d9 100644
--- a/homeassistant/components/hassio/strings.json
+++ b/homeassistant/components/hassio/strings.json
@@ -9,6 +9,7 @@
       "healthy": "Healthy",
       "host_os": "Host operating system",
       "installed_addons": "Installed add-ons",
+      "nameservers": "Nameservers",
       "supervisor_api": "Supervisor API",
       "supervisor_version": "Supervisor version",
       "supported": "Supported",
diff --git a/homeassistant/components/hassio/system_health.py b/homeassistant/components/hassio/system_health.py
index bc8da2a2a92..0a7e9b51e97 100644
--- a/homeassistant/components/hassio/system_health.py
+++ b/homeassistant/components/hassio/system_health.py
@@ -54,6 +54,15 @@ async def system_health_info(hass: HomeAssistant) -> dict[str, Any]:
             "error": "Unsupported",
         }
 
+    nameservers = set()
+    for interface in network_info.get("interfaces", []):
+        if not interface.get("primary"):
+            continue
+        if ipv4 := interface.get("ipv4"):
+            nameservers.update(ipv4.get("nameservers", []))
+        if ipv6 := interface.get("ipv6"):
+            nameservers.update(ipv6.get("nameservers", []))
+
     information = {
         "host_os": host_info.get("operating_system"),
         "update_channel": info.get("channel"),
@@ -62,6 +71,7 @@ async def system_health_info(hass: HomeAssistant) -> dict[str, Any]:
         "docker_version": info.get("docker"),
         "disk_total": f"{host_info.get('disk_total')} GB",
         "disk_used": f"{host_info.get('disk_used')} GB",
+        "nameservers": ", ".join(nameservers),
         "healthy": healthy,
         "supported": supported,
         "host_connectivity": network_info.get("host_internet"),
diff --git a/tests/components/hassio/test_system_health.py b/tests/components/hassio/test_system_health.py
index c4c2b861e6e..4839486810a 100644
--- a/tests/components/hassio/test_system_health.py
+++ b/tests/components/hassio/test_system_health.py
@@ -55,6 +55,10 @@ async def test_hassio_system_health(
     hass.data["hassio_network_info"] = {
         "host_internet": True,
         "supervisor_internet": True,
+        "interfaces": [
+            {"primary": False, "ipv4": {"nameservers": ["9.9.9.9"]}},
+            {"primary": True, "ipv4": {"nameservers": ["1.1.1.1"]}},
+        ],
     }
 
     with patch.dict(os.environ, MOCK_ENVIRON):
@@ -76,6 +80,7 @@ async def test_hassio_system_health(
         "host_os": "Home Assistant OS 5.9",
         "installed_addons": "Awesome Addon (1.0.0)",
         "ntp_synchronized": True,
+        "nameservers": "1.1.1.1",
         "supervisor_api": "ok",
         "supervisor_version": "supervisor-2020.11.1",
         "supported": True,