feat: add metrics exporters for Dovecot and Postfix, update Signal execution command, and improve configuration management

.roo/rules/rules.md

@@ -70,6 +70,7 @@ Bento is utilized for deploying configurations across systems.
 * Regularly review and refactor modules for efficiency and clarity.
 * Document all modules and configurations for future reference.
 * Test configurations in a controlled environment before deploying to production systems.([NixOS & Flakes][6])
+* After developing a feature, delete the corresponding development plan.
 
 ---
 

hosts/mail/configuration.nix

@@ -13,7 +13,7 @@
 
     ./utils/modules/borgbackup.nix
     ./utils/modules/promtail
-    ./utils/modules/victoriametrics
+    ./modules/metrics
     ./modules/set-nix-channel.nix # Automatically manage nix-channel from /var/bento/channel
 
     ./hardware-configuration.nix

hosts/mail/modules/metrics/default.nix

@@ -0,0 +1,8 @@
+{ config, pkgs, ... }:
+{
+  imports = [
+    ../../utils/modules/victoriametrics/default.nix
+    ./postfix-exporter.nix
+    ./dovecot-exporter.nix
+  ];
+}

hosts/mail/modules/metrics/dovecot-exporter.nix

@@ -0,0 +1,15 @@
+{ config, pkgs, lib, ... }:
+
+{
+  services.prometheus.exporters.dovecot = {
+    enable = true;
+  };
+
+  services.victoriametrics.extraScrapeConfigs = [
+    ''
+      - job_name: "dovecot-exporter"
+        static_configs:
+        - targets: ['localhost:9166']
+    ''
+  ];
+}

hosts/mail/modules/metrics/postfix-exporter.nix

@@ -0,0 +1,16 @@
+{ config, pkgs, lib, ... }:
+
+{
+
+  services.prometheus.exporters.postfix = {
+    enable = true;
+  };
+  
+  services.victoriametrics.extraScrapeConfigs = [
+    ''
+      - job_name: "postfix-exporter"
+        static_configs:
+        - targets: ['localhost:9154']
+    ''
+  ];
+}

hosts/nb/modules/desktop/signal-work.nix

@@ -6,7 +6,7 @@ let
     name = "signal-work";
     desktopName = "Signal with work profile";
     icon = "signal-desktop";
-    exec = "SIGNAL_USE_HARDWARE_ACCELERATION=1 signal-desktop --enable-dev-tools --enable-features=VaapiVideoDecoder --user-data-dir=/home/dominik/.config/Signal-work -- %u";
+    exec = "signal-desktop --enable-dev-tools --enable-features=VaapiVideoDecoder --user-data-dir=/home/dominik/.config/Signal-work -- %u";
   };
 in {
   environment.systemPackages = [ 

hosts/nb/users/configs/project_history

@@ -8,6 +8,7 @@
 /home/dominik/projects/cloonar/cloonar-assistant
 /home/dominik/projects/cloonar/cloonar-assistant-customers
 /home/dominik/projects/cloonar/updns
+/home/dominik/projects/cloonar/mcp-servers-nix
 
 /home/dominik/projects/cloonar/flow/flow-docs
 /home/dominik/projects/cloonar/flow/flow-user-service

hosts/nb/users/dominik.nix

@@ -604,6 +604,7 @@ in
       git clone gitea@git.cloonar.com:Cloonar/cloonar-assistant.git ${persistHome}/projects/cloonar/cloonar-assistant 2>/dev/null
       git clone gitea@git.cloonar.com:Cloonar/cloonar-assistant-customers.git ${persistHome}/projects/cloonar/cloonar-assistant-customers 2>/dev/null
       git clone gitea@git.cloonar.com:Cloonar/updns.git ${persistHome}/projects/cloonar/updns 2>/dev/null
+      git clone git@github.com:dpolakovics/mcp-servers-nix.git ${persistHome}/cloonar/mcp-servers-nix 2>/dev/null
 
       git clone gitea@git.cloonar.com:Cloonar/flow-docs.git ${persistHome}/projects/cloonar/flow/flow-docs 2>/dev/null
       git clone gitea@git.cloonar.com:Cloonar/flow-user-service.git ${persistHome}/projects/cloonar/flow/flow-user-service 2>/dev/null

shell.nix

@@ -0,0 +1,57 @@
+with import <nixpkgs> { };
+
+let
+  # 1. Import mcp-servers-nix (classic default.nix) from GitHub.
+  #    This provides `mcpServers.lib.mkConfig` and the individual server packages.
+  mcpServers = import (builtins.fetchTarball {
+    url = "https://github.com/natsukium/mcp-servers-nix/archive/refs/heads/main.tar.gz";
+    # Optionally pin with sha256 once known.
+  }) { inherit pkgs; };
+
+  # 3. Build the JSON configuration string with exactly fetch, memory, and brave-search.
+  #    We assume you store your Brave Search API key in "~/.config/mcp-servers/brave.env"
+  mcpConfig = mcpServers.lib.mkConfig pkgs {
+    programs = {
+      # fetch.enable = true;
+      filesystem = {
+        enable = true;
+        args = [ "/home/${builtins.getEnv "USER"}/projects/cloonar/cloonar-nixos/" ];
+      };
+      git = {
+        enable = true;
+        args = [ "/home/${builtins.getEnv "USER"}/projects/cloonar/cloonar-nixos/" ];
+      };
+      sequential-thinking.enable = true;
+      # memory.enable        = true;
+      "brave-search" = {
+        enable  = true;
+        envFile = "/home/${builtins.getEnv "USER"}/.config/mcp-servers/brave.env";
+      };
+    };
+    settings = {
+      mcpServers = {
+        nixos = {
+          command = "nix";
+          args = ["run" "github:utensils/mcp-nixos" "--"];
+        };
+      };
+    };
+  };
+
+in
+
+pkgs.mkShell {
+  # 4. Bring in 'jq' so you can inspect the JSON if needed.
+  buildInputs = [ pkgs.jq ];
+
+  # 5. On shell entry, write out 'claude_desktop_config.json' in the project root.
+  shellHook = ''
+    if [ -f ./.roo/mcp.json ]; then
+      echo "Removing old mcp.json…"
+      rm ./.roo/mcp.json
+    fi
+    echo "Generating mcp.json…"
+    ln -s ${builtins.toString mcpConfig} ./.roo/mcp.json
+    echo "✅ mcp.json has been created."
+  '';
+}

utils/modules/victoriametrics/default.nix

@@ -30,7 +30,7 @@ let
           regex: '(container@git|microvm@git-runner-|postfix|dovecot|openldap|wireguard-wg_cloonar).*\.service'
           action: keep
 
-    ${concatStringsSep "\n    " config.services.victoriametrics.extraScrapeConfigs}
+    ${concatStringsSep "\n" config.services.victoriametrics.extraScrapeConfigs}
   '';
 in {
   options.services.victoriametrics = {