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monitoring: add nixos-exporter to all hosts
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Add nixos-exporter prometheus exporter to track NixOS generation metrics
and flake revision status across all hosts.

Changes:
- Add nixos-exporter flake input
- Add commonModules list in flake.nix for modules shared by all hosts
- Enable nixos-exporter in system/monitoring/metrics.nix
- Configure Prometheus to scrape nixos-exporter on all hosts

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
Torjus Håkestad
2026-02-06 23:55:29 +01:00
parent f2c30cc24f
commit 97ff774d3f
3 changed files with 76 additions and 127 deletions
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165
flake.nix
View File

@@ -17,6 +17,10 @@
url = "git+https://git.t-juice.club/torjus/labmon?ref=master";
inputs.nixpkgs.follows = "nixpkgs-unstable";
};
nixos-exporter = {
url = "git+https://git.t-juice.club/torjus/nixos-exporter";
inputs.nixpkgs.follows = "nixpkgs-unstable";
};
};
outputs =
@@ -27,6 +31,7 @@
sops-nix,
alerttonotify,
labmon,
nixos-exporter,
...
}@inputs:
let
@@ -42,6 +47,17 @@
alerttonotify.overlays.default
labmon.overlays.default
];
# Common modules applied to all hosts
commonModules = [
(
{ config, pkgs, ... }:
{
nixpkgs.overlays = commonOverlays;
}
)
sops-nix.nixosModules.sops
nixos-exporter.nixosModules.default
];
allSystems = [
"x86_64-linux"
"aarch64-linux"
@@ -58,15 +74,8 @@
specialArgs = {
inherit inputs self sops-nix;
};
modules = [
(
{ config, pkgs, ... }:
{
nixpkgs.overlays = commonOverlays;
}
)
modules = commonModules ++ [
./hosts/ns1
sops-nix.nixosModules.sops
];
};
ns2 = nixpkgs.lib.nixosSystem {
@@ -74,15 +83,8 @@
specialArgs = {
inherit inputs self sops-nix;
};
modules = [
(
{ config, pkgs, ... }:
{
nixpkgs.overlays = commonOverlays;
}
)
modules = commonModules ++ [
./hosts/ns2
sops-nix.nixosModules.sops
];
};
ha1 = nixpkgs.lib.nixosSystem {
@@ -90,15 +92,8 @@
specialArgs = {
inherit inputs self sops-nix;
};
modules = [
(
{ config, pkgs, ... }:
{
nixpkgs.overlays = commonOverlays;
}
)
modules = commonModules ++ [
./hosts/ha1
sops-nix.nixosModules.sops
];
};
template1 = nixpkgs.lib.nixosSystem {
@@ -106,15 +101,8 @@
specialArgs = {
inherit inputs self sops-nix;
};
modules = [
(
{ config, pkgs, ... }:
{
nixpkgs.overlays = commonOverlays;
}
)
modules = commonModules ++ [
./hosts/template
sops-nix.nixosModules.sops
];
};
template2 = nixpkgs.lib.nixosSystem {
@@ -122,15 +110,8 @@
specialArgs = {
inherit inputs self sops-nix;
};
modules = [
(
{ config, pkgs, ... }:
{
nixpkgs.overlays = commonOverlays;
}
)
modules = commonModules ++ [
./hosts/template2
sops-nix.nixosModules.sops
];
};
http-proxy = nixpkgs.lib.nixosSystem {
@@ -138,15 +119,8 @@
specialArgs = {
inherit inputs self sops-nix;
};
modules = [
(
{ config, pkgs, ... }:
{
nixpkgs.overlays = commonOverlays;
}
)
modules = commonModules ++ [
./hosts/http-proxy
sops-nix.nixosModules.sops
];
};
ca = nixpkgs.lib.nixosSystem {
@@ -154,15 +128,8 @@
specialArgs = {
inherit inputs self sops-nix;
};
modules = [
(
{ config, pkgs, ... }:
{
nixpkgs.overlays = commonOverlays;
}
)
modules = commonModules ++ [
./hosts/ca
sops-nix.nixosModules.sops
];
};
monitoring01 = nixpkgs.lib.nixosSystem {
@@ -170,15 +137,8 @@
specialArgs = {
inherit inputs self sops-nix;
};
modules = [
(
{ config, pkgs, ... }:
{
nixpkgs.overlays = commonOverlays;
}
)
modules = commonModules ++ [
./hosts/monitoring01
sops-nix.nixosModules.sops
labmon.nixosModules.labmon
];
};
@@ -187,15 +147,8 @@
specialArgs = {
inherit inputs self sops-nix;
};
modules = [
(
{ config, pkgs, ... }:
{
nixpkgs.overlays = commonOverlays;
}
)
modules = commonModules ++ [
./hosts/jelly01
sops-nix.nixosModules.sops
];
};
nix-cache01 = nixpkgs.lib.nixosSystem {
@@ -203,15 +156,8 @@
specialArgs = {
inherit inputs self sops-nix;
};
modules = [
(
{ config, pkgs, ... }:
{
nixpkgs.overlays = commonOverlays;
}
)
modules = commonModules ++ [
./hosts/nix-cache01
sops-nix.nixosModules.sops
];
};
pgdb1 = nixpkgs.lib.nixosSystem {
@@ -219,15 +165,8 @@
specialArgs = {
inherit inputs self sops-nix;
};
modules = [
(
{ config, pkgs, ... }:
{
nixpkgs.overlays = commonOverlays;
}
)
modules = commonModules ++ [
./hosts/pgdb1
sops-nix.nixosModules.sops
];
};
nats1 = nixpkgs.lib.nixosSystem {
@@ -235,15 +174,8 @@
specialArgs = {
inherit inputs self sops-nix;
};
modules = [
(
{ config, pkgs, ... }:
{
nixpkgs.overlays = commonOverlays;
}
)
modules = commonModules ++ [
./hosts/nats1
sops-nix.nixosModules.sops
];
};
testvm01 = nixpkgs.lib.nixosSystem {
@@ -251,15 +183,8 @@
specialArgs = {
inherit inputs self sops-nix;
};
modules = [
(
{ config, pkgs, ... }:
{
nixpkgs.overlays = commonOverlays;
}
)
modules = commonModules ++ [
./hosts/testvm01
sops-nix.nixosModules.sops
];
};
vault01 = nixpkgs.lib.nixosSystem {
@@ -267,33 +192,19 @@
specialArgs = {
inherit inputs self sops-nix;
};
modules = [
(
{ config, pkgs, ... }:
{
nixpkgs.overlays = commonOverlays;
}
)
modules = commonModules ++ [
./hosts/vault01
sops-nix.nixosModules.sops
];
};
vaulttest01 = nixpkgs.lib.nixosSystem {
inherit system;
specialArgs = {
inherit inputs self sops-nix;
vaulttest01 = nixpkgs.lib.nixosSystem {
inherit system;
specialArgs = {
inherit inputs self sops-nix;
};
modules = commonModules ++ [
./hosts/vaulttest01
];
};
modules = [
(
{ config, pkgs, ... }:
{
nixpkgs.overlays = commonOverlays;
}
)
./hosts/vaulttest01
sops-nix.nixosModules.sops
];
};
};
packages = forAllSystems (
{ pkgs }: