2.9 KiB
swarm init
Usage: docker swarm init [OPTIONS]
Initialize a swarm
Options:
--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 (default 0.0.0.0:2377)
--task-history-limit int Task history retention limit (default 5)
Initialize a swarm cluster. The docker engine targeted by this command becomes a manager in the newly created one node swarm cluster.
$ docker swarm init --listen-addr 192.168.99.121:2377
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 the following command:
docker swarm join \
--token SWMTKN-1-3pu6hszjas19xyp7ghgosyx9k8atbfcr8p2is99znpy26u2lkl-7p73s1dx5in4tatdymyhg9hu2 \
172.17.0.2:2377
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 IP:PORT
--task-history-limit
This flag sets up task history retention limit.