feat(aztec): Add Aztec sequencer service module

Author: monyarm

modules/aztec/default.nix

@@ -0,0 +1,74 @@
+{ withSystem, ... }:
+{
+  flake.modules.nixos.aztec-sequencer =
+    {
+      pkgs,
+      config,
+      lib,
+      ...
+    }:
+    let
+      cfg = config.services.aztec-sequencer;
+      package = withSystem pkgs.stdenv.hostPlatform.system ({ config, ... }: config.packages.aztec);
+    in
+    {
+      options.services.aztec-sequencer = with lib; {
+        enable = mkEnableOption (lib.mdDoc "Aztec Sequencer");
+        ethereumHosts = mkOption {
+          type = types.listOf types.str;
+          description = "Ethereum hosts for the sequencer";
+        };
+        l1ConsensusHostUrls = mkOption {
+          type = types.listOf types.str;
+          description = "L1 consensus host URLs for the sequencer";
+        };
+        coinbase = mkOption {
+          type = types.str;
+          description = "Coinbase for the sequencer";
+        };
+        p2pIp = mkOption {
+          type = types.str;
+          description = "P2P IP for the computer running the node (you can get this by running, curl api.ipify.org, on your node)";
+        };
+        p2pPort = mkOption {
+          type = types.port;
+          default = 40400;
+          description = "The port for the P2P service.";
+        };
+        validatorPrivateKeys = mkOption {
+          type = types.path;
+          description = "Path to private key of testnet L1 EOA that defines the sequencer identity that holds Sepolia ETH.";
+        };
+      };
+      config = lib.mkIf cfg.enable {
+        virtualisation.docker.enable = true;
+
+        systemd.tmpfiles.rules = [
+          "d /var/lib/aztec-sequencer 0755 root root -"
+        ];
+        systemd.services.aztec-sequencer = {
+          description = "Aztec Sequencer";
+          wantedBy = [ "multi-user.target" ];
+          path = [ pkgs.docker ];
+          environment = {
+            HOME = "/var/lib/aztec-sequencer";
+          };
+          serviceConfig = {
+            WorkingDirectory = "/var/lib/aztec-sequencer";
+
+            ExecStart = pkgs.writeShellScript "aztec-sequencer" ''
+              ${lib.getExe package} start --node --archiver --sequencer \
+                --network alpha-testnet \
+                --l1-rpc-urls ${lib.concatStringsSep "," cfg.ethereumHosts} \
+                --l1-consensus-host-urls ${lib.concatStringsSep "," cfg.l1ConsensusHostUrls} \
+                --sequencer.validatorPrivateKeys "$(cat ${cfg.validatorPrivateKeys})" \
+                --sequencer.coinbase ${cfg.coinbase} \
+                --p2p.p2pIp ${cfg.p2pIp} \
+                --p2p.p2pPort ${toString cfg.p2pPort}
+            '';
+          };
+        };
+
+      };
+    };
+}

modules/default.nix

@@ -2,6 +2,7 @@
   imports = [
     ./lido
     ./pyroscope
+    ./aztec
     ./folder-size-metrics
     ./shard-split
     ./random-alerts