examples: working example with scylla db

examples/scylla-storage/README.md

@@ -0,0 +1,16 @@
+# skyring-scylladown
+
+Example skyring cluster using [ScyllaDB] as a storage backend.
+
+```bash
+# start Syclla & nats
+$ docker-compose up -d
+
+# Start Seed Node 1
+$ PORT=3000 DEBUG=* node . --storage:path=skyring-1 --storage:contactPoints=0.0.0.0:9042 --storage:contactPoints=0.0.0.0:9043 --channel:port=3455
+
+# Start Seed Node 1
+$ PORT=3001 DEBUG=* node . --storage:path=skyring-2 --storage:contactPoints=0.0.0.0:9042 --storage:contactPoints=0.0.0.0:9043 --channel:port=3456
+```
+
+[ScyllaDB]: https://scylladb.com

examples/scylla-storage/docker-compose.yml

@@ -0,0 +1,43 @@
+version: "2.1"
+services:
+  scylla-1:
+    image: scylladb/scylla
+    hostname: scylla-1
+    command: --broadcast-address scylla-1 --listen-address scylla-1 --overprovisioned 1 --smp 1
+    ports:
+      - 9042:9042
+    networks:
+      - scylla
+
+  scylla-2:
+    image: scylladb/scylla
+    hostname: scylla-2
+    command: --seeds scylla-1 --broadcast-address scylla-2 --listen-address scylla-2 --overprovisioned 1 --smp 1
+    networks:
+      - scylla
+    ports:
+      - 9043:9042
+    depends_on:
+      - scylla-1
+
+  scylla-3:
+    image: scylladb/scylla
+    hostname: scylla-3
+    command: --seeds scylla-1 --broadcast-address scylla-3 --listen-address scylla-3 --overprovisioned 1 --smp 1
+    networks:
+      - scylla
+    ports:
+      - 9044:9042
+    depends_on:
+      - scylla-1
+
+  nats:
+    image: nats:latest
+    ports:
+      - 4222:4222
+    networks:
+      - scylla
+
+networks:
+  scylla:
+    driver: bridge

examples/scylla-storage/index.js

@@ -0,0 +1,26 @@
+'use strict'
+
+const Skyring = require('skyring')
+
+const server = new Skyring({
+  storage: {
+    backend: '@skyring/scylladown'
+  }
+})
+
+server.listen(process.env.PORT || 3000, (err) => {
+  if(err) {
+    process.exitCode = 1;
+    console.error(err);
+    throw err;
+  }
+  console.log('server listening');
+});
+
+function onSignal() {
+  server.close(()=>{
+    console.log('shutting down');
+  });
+}
+process.once('SIGINT', onSignal);
+process.once('SIGTERM', onSignal);