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NAME
       docker-swarm-init - Initialize a swarm

SYNOPSIS
       docker swarm init [OPTIONS]

DESCRIPTION
       Initialize a swarm

OPTIONS
       --advertise-addr=""      Advertised address (format: "[:port]")

       --autolock[=false]      Enable manager autolocking (requiring an unlock
       key to start a stopped manager)

       --availability="active"       Availability  of  the   node   ("active",
       "pause", "drain")

       --cert-expiry=2160h0m0s       Validity  period  for  node  certificates
       (ns|us|ms|s|m|h)

       --data-path-addr=""      Address or interface  to  use  for  data  path
       traffic (format: "")

       --data-path-port=0       Port number to use for data path traffic (1024
       - 49151). If no value is set or is set to 0, the default port (4789) is
       used.

       --default-addr-pool=[]      default address pool in CIDR format

       --default-addr-pool-mask-length=24       default  address  pool  subnet
       mask length

       --dispatcher-heartbeat=5s          Dispatcher     heartbeat      period
       (ns|us|ms|s|m|h)

       --external-ca=       Specifications  of one or more certificate signing
       endpoints

       --force-new-cluster[=false]      Force create a new cluster  from  cur-
       rent state

       --listen-addr=0.0.0.0:2377      Listen address (format: "[:port]")

       --max-snapshots=0      Number of additional Raft snapshots to retain

       --snapshot-interval=10000      Number of log entries between Raft snap-
       shots

       --task-history-limit=5      Task history retention limit

SEE ALSO
       docker-swarm(1)

Docker Community                   Apr 2026                          DOCKER(1)

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