Unable to put Vapor project with Postgres database on a VPS - postgresql

Question

I'm a newbie with database and Vapor. I'm trying to put a vapor project on a Postgres database on a VPS but I had this error:
2022-08-05 11:18:26.611154+0200 Run[16315:261688] Swift/ErrorType.swift:200: Fatal error: Error raised at top level: PostgresNIO.PSQLError(base: PostgresNIO.PSQLError.Base.connectionError(underlying: NIOPosix.NIOConnectionError(host: "82.125.176.210", port: 5432, dnsAError: nil, dnsAAAAError: nil, connectionErrors: [NIOPosix.SingleConnectionFailure(target: [IPv4]82.125.176.210/82.125.176.210:5432, error: connection reset (error set): Operation timed out (errno: 60))])))
Here my code:
import Fluent
import FluentPostgresDriver
import Vapor
import Leaf
public func configure(_ app: Application) throws {
app.middleware.use(FileMiddleware(publicDirectory: app.directory.publicDirectory))
app.middleware.use(app.sessions.middleware)
let databaseName: String
let databasePort: Int
databaseName = "vapor_database"
databasePort = 5432
app.databases.use(.postgres(
hostname: "82.125.176.210",
port: databasePort,
username: Environment.get("DATABASE_USERNAME") ?? "456787555",
password: Environment.get("DATABASE_PASSWORD") ?? "456787555",
database: Environment.get("DATABASE_NAME") ?? databaseName
), as: .psql)
app.migrations.add(CreateUser())
app.migrations.add(CreateAcronym())
app.migrations.add(CreateCategory())
app.migrations.add(CreateAcronymCategoryPivot())
app.migrations.add(CreateToken())
switch app.environment {
case .development, .testing:
app.migrations.add(CreateAdminUser())
default:
break
}
app.migrations.add(AddTwitterURLToUser())
app.migrations.add(MakeCategoriesUnique())
app.logger.logLevel = .debug
try app.autoMigrate().wait()
app.views.use(.leaf)
// register routes
try routes(app)
}

Answer 1

A timeout error usually means that there's no route to the database server because it's being blocked by a firewall. (As opposed to a connection refused error if there's nothing listening on that port). Make sure you set a rule in the firewall to allow the Vapor app to connect