Another mini sample to show starting two processes and discovery

Samples/Package.swift

@@ -29,6 +29,14 @@ var targets: [PackageDescription.Target] = [
         ]
     ),
 
+    .executableTarget(
+        name: "SamplePair",
+        dependencies: [
+            .product(name: "DistributedCluster", package: "swift-distributed-actors"),
+        ],
+        path: "Sources/SamplePair"
+    ),
+
     /* --- tests --- */
 
     // no-tests placeholder project to not have `swift test` fail on Samples/

Samples/Sources/SamplePair/Person.swift

@@ -0,0 +1,45 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the Swift Distributed Actors open source project
+//
+// Copyright (c) 2018-2022 Apple Inc. and the Swift Distributed Actors project authors
+// Licensed under Apache License v2.0
+//
+// See LICENSE.txt for license information
+// See CONTRIBUTORS.md for the list of Swift Distributed Actors project authors
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+//===----------------------------------------------------------------------===//
+
+import Distributed
+import DistributedCluster
+import Logging
+
+distributed actor Person: CustomStringConvertible {
+    private let name: String
+
+    @ActorID.Metadata(\.receptionID)
+    var receptionID: String
+
+
+    init(name: String, actorSystem: ActorSystem) async {
+        self.actorSystem = actorSystem
+        self.name = name
+
+        self.receptionID = "*"
+
+        await actorSystem.receptionist.checkIn(self)
+
+        Task {
+            for try await person in await actorSystem.receptionist.listing(of: Person.self) where person != self {
+                print("[\(name) on \(actorSystem.cluster.node)] Found: \(person)")
+                try await person.hello(message: "Hello from \(self) on \(actorSystem.cluster.node)!")
+            }
+        }
+    }
+
+    distributed func hello(message: String) {
+        print("[\(name) on \(actorSystem.cluster.node)] Received message: \(message)")
+    }
+}

Samples/Sources/SamplePair/boot.swift

@@ -0,0 +1,59 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the Swift Distributed Actors open source project
+//
+// Copyright (c) 2018-2022 Apple Inc. and the Swift Distributed Actors project authors
+// Licensed under Apache License v2.0
+//
+// See LICENSE.txt for license information
+// See CONTRIBUTORS.md for the list of Swift Distributed Actors project authors
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+//===----------------------------------------------------------------------===//
+
+import Distributed
+import DistributedCluster
+import Logging
+import NIO
+
+typealias DefaultDistributedActorSystem = ClusterSystem
+
+@main enum Main {
+    static func main() async {
+        print("===-----------------------------------------------------===")
+        print("|        Sample App Showing Two Actors Talking            |")
+        print("|                                                         |")
+        print("| USAGE: swift run SamplePair first|second                |")
+        print("===-----------------------------------------------------===")
+
+        let firstPort = 1111
+        let secondPort = 2222
+
+        switch CommandLine.arguments.dropFirst().first {
+        case "first":
+            let system = await ClusterSystem("system") { settings in
+                settings.bindPort = firstPort
+                settings.logging.logLevel = .error
+            }
+            let p = await Person(name: "first-actor", actorSystem: system)
+
+        case "second":
+            let system = await ClusterSystem("system") { settings in
+                settings.logging.logLevel = .error
+                settings.bindPort = secondPort
+            }
+            system.cluster.join(host: "127.0.0.1", port: firstPort)
+
+            try! await system.cluster.joined(within: .seconds(10))
+            let p = await Person(name: "first-actor", actorSystem: system)
+
+        default:
+            print("Please select 'first' or 'second'")
+            return
+        }
+
+        try? await Task.sleep(for: .seconds(60))
+        _ = p
+    }
+}