feat: web-arm install atticd

hosts/web-arm/configuration.nix

@@ -19,6 +19,7 @@
     ./modules/victoriametrics.nix
     ./modules/blackbox-exporter.nix
     ./modules/updns.nix
+    ./modules/atticd.nix
 
     ./utils/modules/autoupgrade.nix
     ./utils/modules/promtail

hosts/web-arm/modules/atticd.nix

@@ -0,0 +1,207 @@
+{ config, lib, pkgs, ... }:
+
+let
+  atticHost = "attic.cloonar.com";
+  atticPort = 8080; # Internal port for atticd
+in {
+  # Declare required secrets
+  sops.secrets.atticd = {
+    # This should contain environment variables for atticd
+    # Format: KEY=value per line
+    # Required:
+    # ATTIC_SERVER_TOKEN_HS256_SECRET=<random-256-bit-secret>
+    # Optional:
+    # ATTIC_SERVER_DATABASE_URL=postgresql://user:pass@localhost/attic
+  };
+
+  # Attic server service
+  services.atticd = {
+    enable = true;
+
+    # Credentials file from sops
+    environmentFile = config.sops.secrets.atticd.path;
+
+    settings = {
+      listen = "127.0.0.1:${toString atticPort}";
+
+      # API endpoint configuration
+      api-endpoint = "https://${atticHost}/";
+
+      # Allow automatic registration (set to false for production if you want to control access)
+      allow-registration = false;
+
+      # Require tokens for all operations
+      require-proof-of-possession = true;
+
+      # Chunking settings for large uploads
+      chunking = {
+        # Minimum chunk size: 16 MiB
+        min-size = 16 * 1024 * 1024;
+        # Average chunk size: 64 MiB
+        avg-size = 64 * 1024 * 1024;
+        # Maximum chunk size: 256 MiB
+        max-size = 256 * 1024 * 1024;
+      };
+
+      # Garbage collection
+      garbage-collection = {
+        # GC interval in seconds (12 hours)
+        interval = 12 * 60 * 60;
+
+        # Delete unreferenced chunks after 7 days
+        default-retention-period = 7 * 24 * 60 * 60;
+      };
+
+      # Storage configuration
+      storage = {
+        # Use local filesystem storage
+        type = "local";
+        # Store in /var/lib/atticd
+        path = "/var/lib/atticd/storage";
+      };
+
+      # Optional: S3-compatible storage (commented out)
+      # storage = {
+      #   type = "s3";
+      #   region = "eu-central-1";
+      #   bucket = "attic-cache";
+      #   endpoint = "https://s3.eu-central-1.amazonaws.com";
+      # };
+
+      # Database configuration
+      database = {
+        url = "postgresql://atticd@/atticd?host=/run/postgresql";
+      };
+
+      # Compression
+      compression = {
+        # Use zstd compression
+        type = "zstd";
+        level = 3; # Balance between speed and compression
+      };
+    };
+  };
+
+  # Create state directory with proper permissions
+  systemd.services.atticd = {
+    serviceConfig = {
+      StateDirectory = "atticd";
+      StateDirectoryMode = "0750";
+      # Security hardening
+      PrivateTmp = true;
+      ProtectSystem = "strict";
+      ProtectHome = true;
+      NoNewPrivileges = true;
+      RestrictNamespaces = true;
+      RestrictRealtime = true;
+      RestrictSUIDSGID = true;
+      LockPersonality = true;
+      ProtectProc = "invisible";
+      ProtectClock = true;
+      ProtectKernelLogs = true;
+      ProtectControlGroups = true;
+      ProtectKernelModules = true;
+      ProtectKernelTunables = true;
+      ProtectHostname = true;
+      SystemCallFilter = "@system-service";
+      SystemCallErrorNumber = "EPERM";
+      # Resource limits
+      LimitNOFILE = 65536;
+    };
+  };
+
+  # Nginx reverse proxy configuration
+  services.nginx.virtualHosts."${atticHost}" = {
+    enableACME = true;
+    forceSSL = true;
+    acmeRoot = null;
+
+    locations."/" = {
+      proxyPass = "http://127.0.0.1:${toString atticPort}";
+      proxyWebsockets = true;
+
+      extraConfig = ''
+        # Increase timeouts for large uploads
+        proxy_connect_timeout 300;
+        proxy_send_timeout 300;
+        proxy_read_timeout 300;
+        send_timeout 300;
+
+        # Increase body size limit for large NAR uploads (500MB)
+        client_max_body_size 500M;
+        client_body_buffer_size 128k;
+
+        # Proxy headers
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+
+        # Buffering settings for better performance
+        proxy_buffering on;
+        proxy_buffer_size 4k;
+        proxy_buffers 8 4k;
+        proxy_busy_buffers_size 8k;
+        proxy_temp_file_write_size 8k;
+
+        # Cache settings for static content
+        proxy_cache_valid 200 302 10m;
+        proxy_cache_valid 404 1m;
+      '';
+    };
+
+    # Health check endpoint
+    locations."/health" = {
+      proxyPass = "http://127.0.0.1:${toString atticPort}/health";
+    };
+
+    # API endpoint with stricter rate limiting
+    locations."~ ^/api/" = {
+      proxyPass = "http://127.0.0.1:${toString atticPort}";
+
+      extraConfig = ''
+        # Rate limiting for API endpoints
+        limit_req zone=attic_api burst=10 nodelay;
+
+        # Same proxy settings as above
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+
+        client_max_body_size 500M;
+      '';
+    };
+  };
+
+  # Configure Nginx rate limiting zones
+  services.nginx.appendHttpConfig = ''
+    # Rate limiting zones for Attic
+    limit_req_zone $binary_remote_addr zone=attic_api:10m rate=10r/s;
+    limit_req_zone $binary_remote_addr zone=attic_upload:10m rate=5r/s;
+
+    # Connection limiting
+    limit_conn_zone $binary_remote_addr zone=attic_conn:10m;
+  '';
+
+  services.postgresql.ensureUsers = [
+    {
+      name = "atticd";
+      ensureDBOwnership = true;
+    }
+  ];
+  services.postgresql.ensureDatabases = [ "atticd" ];
+  services.postgresqlBackup.databases = [ "atticd" ];
+
+  services.borgbackup.jobs.default.exclude = [
+    "/var/lib/atticd"
+  ];
+
+  # Monitoring with Prometheus (if you have it set up)
+  # services.prometheus.scrapeConfigs = [{
+  #   job_name = "atticd";
+  #   static_configs = [{
+  #     targets = [ "127.0.0.1:${toString atticPort}" ];
+  #   }];
+  # }];
+}