Add start-swarm-cluster.sh

Author: moul

examples/start-swarm-cluster.sh

@@ -0,0 +1,28 @@
+#!/bin/sh
+
+# generate a swarm unique token on Docker Hub discovery backend, for testing only
+# doc: https://docs.docker.com/swarm/install-w-machine/#create-a-swarm-discovery-token
+SWARM_TOKEN=$(docker run --rm swarm create)
+
+
+( set -x
+  # create swarm master
+  docker-machine create -d scaleway --swarm --swarm-master --scaleway-name=swarm-manager --swarm-discovery=token://$SWARM_TOKEN swarm-manager
+)
+
+
+# create 3 workers
+for node in 1 2 3; do
+    ( set -x
+      docker-machine create -d scaleway --swarm --scaleway-name=swarm-node-$node --swarm-discovery=token://$SWARM_TOKEN swarm-node-$node
+    )
+done
+
+
+# configure shell for swarm
+eval "$(docker-machine env --swarm swarm-manager)"
+# display infos
+( set -x
+  docker version
+  docker info
+)