Replace telegraf with node exporter

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

hosts/jupiter-vps/configs/podman/prometheus/default.nix

@@ -0,0 +1,65 @@
+{ inputs, system, ... }:
+let
+  selfPkgs = inputs.self.packages.${system};
+in
+{
+  boot.kernelParams = [ "psi=1" ];
+
+  networking.firewall.interfaces.wg0.allowedTCPPorts = [
+    9100
+    9882
+    9191
+  ];
+
+  virtualisation.quadlet.containers = {
+    prometheus-node-exporter.containerConfig = {
+      image = "docker-archive:${selfPkgs.docker-prometheus-node-exporter}";
+      # Allow collecting host metrics, port :9100 by default
+      networks = [ "host" ];
+      podmanArgs = [
+        "--pid"
+        "host"
+      ];
+      volumes = [
+        "/:/host:ro,rslave"
+        "/run/udev:/run/udev:ro"
+        "/run/dbus/system_bus_socket:/var/run/dbus/system_bus_socket:ro"
+        "/etc/static/os-release:/host/etc/os-release:ro"
+      ];
+      exec = [
+        "--log.level=warn"
+        "--path.rootfs=/host"
+        "--no-collector.arp"
+        "--no-collector.bonding"
+        "--no-collector.edac"
+        "--no-collector.fibrechannel"
+        "--no-collector.infiniband"
+        "--no-collector.ipvs"
+        "--no-collector.mdadm"
+        "--no-collector.nfs"
+        "--no-collector.nfsd"
+        "--no-collector.selinux"
+        "--no-collector.xfs"
+        "--no-collector.zfs"
+        "--collector.cpu_vulnerabilities"
+        "--collector.drm"
+        "--collector.ethtool"
+        "--collector.processes"
+        "--collector.systemd"
+      ];
+    };
+
+    prometheus-podman-exporter.containerConfig = {
+      image = "docker-archive:${selfPkgs.docker-prometheus-podman-exporter}";
+      publishPorts = [ "9882:9882" ];
+      volumes = [ "/run/podman/podman.sock:/run/podman/podman.sock:ro" ];
+      exec = [ "--collector.enable-all" ];
+    };
+
+    prometheus-fail2ban-exporter.containerConfig = {
+      image = "docker-archive:${selfPkgs.docker-prometheus-fail2ban-exporter}";
+      publishPorts = [ "9191:9191" ];
+      volumes = [ "/run/fail2ban/fail2ban.sock:/var/run/fail2ban/fail2ban.sock:ro" ];
+    };
+  };
+}