also try

Dockerfile

@@ -4,13 +4,7 @@ EXPOSE 80
 EXPOSE 443
 
 FROM mcr.microsoft.com/dotnet/sdk:7.0 AS build
-ENV CLIENTID 123
-ENV CLIENTSECRET aAbB
-ENV REDIRECTURL http://example.org/
-ENV PSQL_HOST localhost
-ENV PSQL_USER root
-ENV PSQL_PASSWORD root
-ENV PSQL_DATABASE database
+
 
 WORKDIR /src
 COPY ["yaflay.ru.csproj", "."]
@@ -20,6 +14,13 @@ WORKDIR "/src/."
 RUN dotnet build "yaflay.ru.csproj" -c Release -o /app/build 
 
 FROM build AS publish
+ENV CLIENTID 123
+ENV CLIENTSECRET aAbB
+ENV REDIRECTURL http://example.org/
+ENV PSQL_HOST localhost
+ENV PSQL_USER root
+ENV PSQL_PASSWORD root
+ENV PSQL_DATABASE database
 RUN dotnet publish "yaflay.ru.csproj" -c Release -o /app/publish /p:UseAppHost=false;redirectUrl=$CLIENTID;clientId=;clientSecret=$CLIENTSECRET;Host=$PSQL_HOST;Username=$PSQL_USER;Password=$PSQL_PASSWORD;Database=$PSQL_DATABASE
 
 FROM base AS final

Program.cs

@@ -2,9 +2,9 @@ using Microsoft.AspNetCore.Hosting;
 using yaflay.ru;
 public class Program
 {
-    public static void Main()
+    public static void Main(string[] args)
     {
-        
+        Console.WriteLine(args[0]);
         var parse = (string name) => Environment.GetEnvironmentVariable(name) ?? null;
         Startup.clientId = parse("clientId");
         Startup.clientSecret = parse("clientSecret");