Here's the special configuration to override the default Swarm configuration.
{
"ListenAddr": "0.0.0.0:2377",
"AdvertiseAddr": "67.205.160.45:2377",
"ForceNewCluster": true,
"Spec": {
"Orchestration": {},
"Raft": { "KeepOldSnapshots": 1000000 },
"Dispatcher": {},
"CAConfig": {}
}
}It initializes Docker swarm and tell to keep all snapshots up to 1M entries.
cat init_config | curl -XPOST --unix-socket /var/run/docker.sock -H "Content-Type: application/json" -d @- http:/swarm/init