Replace telegraf with node exporter

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

hosts/jupiter/users/storm/configs/console/podman/traefik/default.nix

@@ -43,7 +43,10 @@ in
         traefik = {
           containerConfig = {
             image = "docker-archive:${selfPkgs.docker-traefik}";
-            networks = [ networks.traefik.ref ];
+            networks = [
+              networks.traefik.ref
+              networks.prometheus.ref
+            ];
             volumes =
               let
                 uid = builtins.toString config.users.users.${user}.uid;
@@ -84,6 +87,8 @@ in
               "--certificatesresolvers.letsencrypt.acme.dnschallenge.provider=cloudflare"
               "--certificatesresolvers.letsencrypt.acme.email=nick@karaolidis.com"
               "--certificatesresolvers.letsencrypt.acme.storage=/letsencrypt/acme.json"
+
+              "--metrics.prometheus=true"
             ];
             labels = [
               "traefik.enable=true"
@@ -135,12 +140,37 @@ in
             };
           in
           [ "${config}:/etc/authelia/conf.d/traefik.yaml:ro" ];
+
+        prometheus-init.containerConfig.volumes =
+          let
+            traefikConfig = (pkgs.formats.yaml { }).generate "traefik.yml" {
+              scrape_configs =
+                let
+                  hostname = config.networking.hostName;
+                in
+                [
+                  {
+                    job_name = "${hostname}-traefik";
+                    static_configs = [
+                      {
+                        targets = [ "traefik:8080" ];
+                        labels = {
+                          app = "traefik";
+                          inherit user hostname;
+                        };
+                      }
+                    ];
+                  }
+                ];
+            };
+          in
+          [ "${traefikConfig}:/etc/prometheus/conf.d/traefik.yml" ];
       };
     };
 
     # https://github.com/eriksjolund/podman-traefik-socket-activation
     systemd.user.sockets = {
-      "traefik-http" = {
+      traefik-http = {
         Socket = {
           ListenStream = "0.0.0.0:80";
           FileDescriptorName = "http";
@@ -152,7 +182,7 @@ in
         };
       };
 
-      "traefik-https" = {
+      traefik-https = {
         Socket = {
           ListenStream = "0.0.0.0:443";
           FileDescriptorName = "https";