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Merge pull request #839 from vanvonlj/upstream-pr/assume-externally-provisioned-database

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Support externally-provisioned databases (opt-in, no drop/create)

(cherry picked from commit 2e117c26764483fb4ee3de9540c9bf7a647d8067)
This commit is contained in:
sven-n
2026-07-22 07:30:36 +02:00
committed by Acentech Dev
parent b854565586
commit eb4c05eda2
6 changed files with 70 additions and 12 deletions
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18
src/Startup/Program.cs
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@@ -51,6 +51,7 @@ internal sealed class Program : IDisposable
private readonly IDictionary<int, IGameServer> _gameServers = new Dictionary<int, IGameServer>();
private readonly IList<IManageableServer> _servers = new List<IManageableServer>();
private readonly Serilog.ILogger _logger;
private readonly IConfiguration _configuration;
private IHost? _serverHost;
@@ -65,8 +66,10 @@ internal sealed class Program : IDisposable
.SetBasePath(Directory.GetCurrentDirectory())
.AddJsonFile("appsettings.json", false, true)
.AddJsonFile($"appsettings.{Environment.GetEnvironmentVariable("ASPNETCORE_ENVIRONMENT") ?? "Production"}.json", true, true)
.AddEnvironmentVariables()
.Build();
this._configuration = configuration;
this._logger = new LoggerConfiguration()
.ReadFrom.Configuration(configuration)
.CreateLogger();
@@ -475,8 +478,19 @@ internal sealed class Program : IDisposable
var contextProvider = new PersistenceContextProvider(loggerFactory, changeListener);
if (reinit || !await contextProvider.DatabaseExistsAsync().ConfigureAwait(false))
{
this._logger.Information("The database is getting (re-)initialized...");
using var update = await contextProvider.ReCreateDatabaseAsync().ConfigureAwait(false);
// The database can be provisioned externally (e.g. by a Kubernetes operator,
// infrastructure-as-code, or a managed cloud database), where the connecting role is
// typically not permitted to create or drop databases. Enabling
// Database:AssumeExternallyProvisioned keeps the existing database and only builds its
// schema via migrations, instead of dropping and recreating it. The default (false)
// preserves the original drop-and-recreate behaviour; an explicit -reinit always recreates.
var assumeExternallyProvisioned = !reinit
&& this._configuration.GetValue<bool>("Database:AssumeExternallyProvisioned");
this._logger.Information(assumeExternallyProvisioned
? "Building the schema on the externally-provisioned database (no drop/create)..."
: "The database is getting (re-)initialized...");
using var update = await contextProvider.ReCreateDatabaseAsync(dropExistingDatabase: !assumeExternallyProvisioned).ConfigureAwait(false);
await this.InitializeDataAsync(version, loggerFactory, contextProvider).ConfigureAwait(false);
this._logger.Information("...initialization finished.");
}