feat: replace cloudflare DNS with NextDNS

internal/installers/assets/etc/resolv.conf

@@ -1,4 +1,4 @@
-nameserver 1.1.1.1
-nameserver 1.0.0.1
-nameserver 2606:4700:4700::1111
-nameserver 2606:4700:4700::1001
+nameserver 45.90.28.0
+nameserver 2a07:a8c0::
+nameserver 45.90.30.0
+nameserver 2a07:a8c1::

internal/installers/assets/etc/systemd/resolv.conf

@@ -0,0 +1,9 @@
+# Use 'systemd-analyze cat-config systemd/resolved.conf' to display the full config.
+# See resolved.conf(5) for details.
+
+[Resolve]
+DNS=45.90.28.0
+DNS=2a07:a8c0::
+DNS=45.90.30.0
+DNS=2a07:a8c1::
+DNSOverTLS=yes

internal/installers/cloudflare_dns.go

@@ -1,40 +0,0 @@
-package installers
-
-import (
-	_ "embed"
-
-	"github.com/developomp/pompup/internal/wrapper"
-	"github.com/pterm/pterm"
-)
-
-//go:embed assets/etc/resolv.conf
-var _resolvConf string
-
-func init() {
-	register(&Installer{
-		Name: "Cloudflare DNS",
-		Desc: "1.1.1.1 DNS",
-		Setup: func() {
-			const filePath = "/etc/resolv.conf"
-
-			if wrapper.IsFileUpdated(filePath, _resolvConf) {
-				return
-			}
-
-			// remove immutable flag from /etc/resolv.conf
-			err := wrapper.Run("sudo", "chattr", "-i", filePath)
-			if err != nil {
-				pterm.Fatal.Println("Failed to remove immutable flag from /etc/resolv.conf:", err)
-			}
-
-			// write to /etc/resolv.conf
-			wrapper.SudoWriteFile(filePath, _resolvConf)
-
-			// restore immutable flag
-			err = wrapper.Run("sudo", "chattr", "+i", filePath)
-			if err != nil {
-				pterm.Fatal.Println("Failed to restore immutable flag of /etc/resolv.conf:", err)
-			}
-		},
-	})
-}

internal/installers/nextdns.go

@@ -0,0 +1,49 @@
+package installers
+
+import (
+	_ "embed"
+
+	"github.com/developomp/pompup/internal/wrapper"
+	"github.com/pterm/pterm"
+)
+
+//go:embed assets/etc/resolv.conf
+var _resolvConf string
+
+//go:embed assets/etc/systemd/resolv.conf
+var _systemdResolvConf string
+
+func init() {
+	register(&Installer{
+		Name: "NextDNS",
+		Desc: "private DNS",
+		Setup: func() {
+			updateResolvConf()
+
+			wrapper.SudoWriteFile("/etc/systemd/resolv.conf", _systemdResolvConf)
+		},
+	})
+}
+
+func updateResolvConf() {
+	const filePath = "/etc/resolv.conf"
+
+	if wrapper.IsFileUpdated(filePath, _resolvConf) {
+		return
+	}
+
+	// remove immutable flag from /etc/resolv.conf
+	err := wrapper.Run("sudo", "chattr", "-i", filePath)
+	if err != nil {
+		pterm.Fatal.Println("Failed to remove immutable flag from /etc/resolv.conf:", err)
+	}
+
+	// write to /etc/resolv.conf
+	wrapper.SudoWriteFile(filePath, _resolvConf)
+
+	// restore immutable flag
+	err = wrapper.Run("sudo", "chattr", "+i", filePath)
+	if err != nil {
+		pterm.Fatal.Println("Failed to restore immutable flag of /etc/resolv.conf:", err)
+	}
+}