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DOCKER

Section: Docker User Manuals (1)
Updated: Jun 2025
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docke-swar-init- Initialize a swarm

docker swarm init [OPTIONS]

Initialize a swarm

-advertis-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")

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

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

-dat-pat-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.

-defaul-add-pool=[] default address pool in CIDR format

-defaul-add-poo-mas-length=24 default address pool subnet mask length

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

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

-forc-ne-cluster[=false] Force create a new cluster from current state

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

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

-snapsho-interval=10000 Number of log entries between Raft snapshots

-tas-histor-limit=5 Task history retention limit