From edf770eb5a27fcc33a7bc23a9b5ba0b314e909ef Mon Sep 17 00:00:00 2001
From: Petru Paler <petru@paler.net>
Date: Thu, 6 Jul 2023 06:27:35 +0100
Subject: [PATCH] Basic consul config.

---
 flake.lock                    | 12 ++++++------
 hosts/common/compute-node.nix |  1 +
 hosts/common/consul.nix       | 16 +++++++++++++++-
 3 files changed, 22 insertions(+), 7 deletions(-)

diff --git a/flake.lock b/flake.lock
index d011125..207b442 100644
--- a/flake.lock
+++ b/flake.lock
@@ -55,11 +55,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1687829761,
-        "narHash": "sha256-QRe1Y8SS3M4GeC58F/6ajz6V0ZLUVWX3ZAMgov2N3/g=",
+        "lastModified": 1688482527,
+        "narHash": "sha256-9zd0YC2gfsRvVJENZsVs1R5LBj5/t127JlCLggn/970=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "9790f3242da2152d5aa1976e3e4b8b414f4dd206",
+        "rev": "c7a18f89ef1dc423f57f3de9bd5d9355550a5d15",
         "type": "github"
       },
       "original": {
@@ -71,11 +71,11 @@
     },
     "nixpkgs-unstable": {
       "locked": {
-        "lastModified": 1688049487,
-        "narHash": "sha256-100g4iaKC9MalDjUW9iN6Jl/OocTDtXdeAj7pEGIRh4=",
+        "lastModified": 1688500189,
+        "narHash": "sha256-djYYiY4lzJOlXOnTHytH6BUugrxHDZjuGxTSrU4gt4M=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "4bc72cae107788bf3f24f30db2e2f685c9298dc9",
+        "rev": "78419edadf0fabbe5618643bd850b2f2198ed060",
         "type": "github"
       },
       "original": {
diff --git a/hosts/common/compute-node.nix b/hosts/common/compute-node.nix
index 34566d8..d4a9f64 100644
--- a/hosts/common/compute-node.nix
+++ b/hosts/common/compute-node.nix
@@ -1,6 +1,7 @@
 { pkgs, ... }:
 {
   imports = [
+    ./consul.nix
     ./impermanence.nix
     ./nomad.nix
     ./seaweedfs.nix
diff --git a/hosts/common/consul.nix b/hosts/common/consul.nix
index 6356107..f107aee 100644
--- a/hosts/common/consul.nix
+++ b/hosts/common/consul.nix
@@ -1,8 +1,22 @@
 { pkgs, config, ... }:
+let
+  servers = [ "c1" "c2" "c3" ];
+  server_enabled = builtins.elem config.networking.hostName servers;
+in
 {
-  services.consul.enable = true;
+  services.consul = {
+    enable = true;
+    interface.advertise = "eno1";
+    extraConfig = {
+      datacenter = "alo";
+      server = server_enabled;
+      bootstrap_expect = (builtins.length servers + 2) / 2;
+      retry_join = builtins.filter (elem: elem != config.networking.hostName) servers;
+    };
+  };
 
   environment.persistence."/persist".directories = [
+    "/var/lib/consul"
   ];
 
   networking.firewall = {