fix: avoid duplicate org error in seeds and default PHX_HOST to localhost

Check if the default org exists before inserting to prevent noisy
Postgres constraint violation errors on restarts. Change PHX_HOST
fallback from "example.com" to "localhost" for Docker Compose.

Author: raffaelschneider

config/runtime.exs

@@ -86,7 +86,7 @@ if config_env() == :prod do
       You can generate one by calling: mix phx.gen.secret
       """
 
-  host = System.get_env("PHX_HOST") || "example.com"
+  host = System.get_env("PHX_HOST") || "localhost"
 
   config :zentinel_cp, :dns_cluster_query, System.get_env("DNS_CLUSTER_QUERY")
 

priv/repo/seeds.exs

@@ -30,14 +30,17 @@ end
 admin = ZentinelCp.Accounts.get_user_by_email("admin@localhost")
 
 if admin do
-  case ZentinelCp.Orgs.create_org_with_owner(%{name: "Default"}, admin) do
-    {:ok, org} ->
-      IO.puts("Created org: #{org.name} (slug: #{org.slug})")
-
-    {:error, %{errors: [slug: {"has already been taken", _}]}} ->
+  case ZentinelCp.Orgs.get_org_by_slug("default") do
+    %{} ->
       IO.puts("Default org already exists")
 
-    {:error, reason} ->
-      IO.inspect(reason, label: "Failed to create org")
+    nil ->
+      case ZentinelCp.Orgs.create_org_with_owner(%{name: "Default"}, admin) do
+        {:ok, org} ->
+          IO.puts("Created org: #{org.name} (slug: #{org.slug})")
+
+        {:error, reason} ->
+          IO.inspect(reason, label: "Failed to create org")
+      end
   end
 end