From f94403a692e15599bfc0990e6556269a06017950 Mon Sep 17 00:00:00 2001
From: Seongmin Lee <git@boltless.me>
Date: Sat, 12 Sep 2026 15:47:46 +0900
Subject: [PATCH] add mock

Signed-off-by: Seongmin Lee <git@boltless.me>
---
 flake.nix                                    |  5 ++
 hosts/mock-eu-1/configuration.nix            |  7 +++
 hosts/mock-eu-1/disk-config.nix              | 62 ++++++++++++++++++++
 hosts/prometheus-hel/services/prometheus.nix |  1 +
 4 files changed, 75 insertions(+)
 create mode 100644 hosts/mock-eu-1/configuration.nix
 create mode 100644 hosts/mock-eu-1/disk-config.nix

diff --git a/flake.nix b/flake.nix
index bea5db1..4053109 100644
--- a/flake.nix
+++ b/flake.nix
@@ -128,6 +128,11 @@
         target = "46.224.9.195";
       };
 
+      mock-eu-1 = {
+        modules = [];
+        target = "35.228.210.244";
+      };
+
       pds = {
         modules = [
           ./hosts/pds/services/nginx.nix
diff --git a/hosts/mock-eu-1/configuration.nix b/hosts/mock-eu-1/configuration.nix
new file mode 100644
index 0000000..633731a
--- /dev/null
+++ b/hosts/mock-eu-1/configuration.nix
@@ -0,0 +1,7 @@
+{...}: {
+  imports = [./disk-config.nix];
+  networking.hostName = "mock-eu-1";
+  # GCP serial console is the only recovery path if this box fails to boot.
+  boot.kernelParams = ["console=ttyS0,115200"];
+  system.stateVersion = "25.11";
+}
diff --git a/hosts/mock-eu-1/disk-config.nix b/hosts/mock-eu-1/disk-config.nix
new file mode 100644
index 0000000..c312b4a
--- /dev/null
+++ b/hosts/mock-eu-1/disk-config.nix
@@ -0,0 +1,62 @@
+# Single GCP persistent disk, LVM pv in vg "pool"; bios-compatible gpt.
+{lib, ...}: {
+  disko.devices = {
+    disk.disk1 = {
+      device = lib.mkDefault "/dev/sda";
+      type = "disk";
+      content = {
+        type = "gpt";
+        partitions = {
+          boot = {
+            name = "boot";
+            size = "1M";
+            type = "EF02";
+          };
+          esp = {
+            name = "ESP";
+            size = "500M";
+            type = "EF00";
+            content = {
+              type = "filesystem";
+              format = "vfat";
+              mountpoint = "/boot";
+            };
+          };
+          root = {
+            name = "root";
+            size = "100%";
+            content = {
+              type = "lvm_pv";
+              vg = "pool";
+            };
+          };
+        };
+      };
+    };
+    lvm_vg = {
+      pool = {
+        type = "lvm_vg";
+        lvs = {
+          swap = {
+            size = "4G";
+            content = {
+              type = "swap";
+              discardPolicy = "once";
+            };
+          };
+          root = {
+            size = "100%FREE";
+            content = {
+              type = "filesystem";
+              format = "ext4";
+              mountpoint = "/";
+              mountOptions = [
+                "defaults"
+              ];
+            };
+          };
+        };
+      };
+    };
+  };
+}
diff --git a/hosts/prometheus-hel/services/prometheus.nix b/hosts/prometheus-hel/services/prometheus.nix
index 36ef4c2..a111078 100644
--- a/hosts/prometheus-hel/services/prometheus.nix
+++ b/hosts/prometheus-hel/services/prometheus.nix
@@ -118,6 +118,7 @@ in {
               "knot1-ams:9100"
               "mirror-fsn:9100"
               "sandbox-hel:9100"
+              "mock-eu-n1:9100"
               "nixery:9100"
               "spindle-hel:9100"
               "127.0.0.1:9100"
-- 
2.51.2