docker swarm init
Warning: this command is part of the Swarm management feature introduced in Docker 1.12, and might be subject to non backward-compatible changes.
swarm init
Usage: docker swarm init [OPTIONS]
Initialize a swarm
Options:
--advertise-addr value Advertised address (format: <ip|interface>[:port])
--cert-expiry duration Validity period for node certificates (default 2160h0m0s)
--dispatcher-heartbeat duration Dispatcher heartbeat period (default 5s)
--external-ca value Specifications of one or more certificate signing endpoints
--force-new-cluster Force create a new cluster from current state.
--help Print usage
--listen-addr value Listen address (format: <ip|interface>[:port])
--task-history-limit int Task history retention limit (default 5)
Initialize a swarm. The docker engine targeted by this command becomes a manager in the newly created single-node swarm.
$ docker swarm init --advertise-addr 192.168.99.121
Swarm initialized: current node (bvz81updecsj6wjz393c09vti) is now a manager.
To add a worker to this swarm, run the following command:
docker swarm join \
--token SWMTKN-1-3pu6hszjas19xyp7ghgosyx9k8atbfcr8p2is99znpy26u2lkl-1awxwuwd3z9j1z3puu7rcgdbx \
172.17.0.2:2377
To add a manager to this swarm, run 'docker swarm join-token manager' and follow the instructions.
docker swarm init generates two random tokens, a worker token and a manager token. When you join a new node to the swarm, the node joins as a worker or manager node based upon the token you pass to swarm join.
After you create the swarm, you can display or rotate the token using swarm join-token.
--cert-expiry
This flag sets the validity period for node certificates.
--dispatcher-heartbeat
This flags sets the frequency with which nodes are told to use as a period to report their health.
--external-ca value
This flag sets up the swarm to use an external CA to issue node certificates. The value takes the form protocol=X,url=Y. The value for protocol specifies what protocol should be used to send signing requests to the external CA. Currently, the only supported value is cfssl. The URL specifies the endpoint where signing requests should be submitted.
--force-new-cluster
This flag forces an existing node that was part of a quorum that was lost to restart as a single node Manager without losing its data.
--listen-addr value
The node listens for inbound Swarm manager traffic on this address. The default is to listen on 0.0.0.0:2377. It is also possible to specify a network interface to listen on that interface’s address; for example --listen-addr eth0:2377.
Specifying a port is optional. If the value is a bare IP address or interface name, the default port 2377 will be used.
--advertise-addr value
This flag specifies the address that will be advertised to other members of the swarm for API access and overlay networking. If unspecified, Docker will check if the system has a single IP address, and use that IP address with with the listening port (see --listen-addr). If the system has multiple IP addresses, --advertise-addr must be specified so that the correct address is chosen for inter-manager communication and overlay networking.
It is also possible to specify a network interface to advertise that interface’s address; for example --advertise-addr eth0:2377.
Specifying a port is optional. If the value is a bare IP address or interface name, the default port 2377 will be used.
--task-history-limit
This flag sets up task history retention limit.
Related information
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Licensed under the Apache License, Version 2.0.
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https://docs.docker.com/engine/reference/commandline/swarm_init/
