From 918100f48f76152fbfcf20689af33288067d1122 Mon Sep 17 00:00:00 2001
From: Martin Weinelt <hexa@darmstadt.ccc.de>
Date: Tue, 1 Feb 2022 21:25:12 +0100
Subject: [PATCH] nixos/home-assistant: Wait for {mysql,postgresql}.service

Database provisioning was shown to be racy since adding a recorder test
using PostgreSQL. There is no harm in waiting for these services,
because if they're not available they will be ignored.
---
 nixos/modules/services/home-automation/home-assistant.nix | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/nixos/modules/services/home-automation/home-assistant.nix b/nixos/modules/services/home-automation/home-assistant.nix
index eb70cf4c9e29..15aea7de902d 100644
--- a/nixos/modules/services/home-automation/home-assistant.nix
+++ b/nixos/modules/services/home-automation/home-assistant.nix
@@ -364,7 +364,13 @@ in {
 
     systemd.services.home-assistant = {
       description = "Home Assistant";
-      after = [ "network-online.target" ];
+      after = [
+        "network-online.target"
+
+        # prevent races with database creation
+        "mysql.service"
+        "postgresql.service"
+      ];
       preStart = optionalString (cfg.config != null) (if cfg.configWritable then ''
         cp --no-preserve=mode ${configFile} "${cfg.configDir}/configuration.yaml"
       '' else ''