Create, add node to the swarm cluster of Docker engine

Create a Swarm:

sunny@Oracle1:~/Desktop$ docker swarm init

Swarm initialized: current node (qz7ctlqi486ogcmfchj8gphsb) is now a manager.

To add a worker to this swarm, run the following command:

    docker swarm join --token SWMTKN-1-342v4g5c4mk1pl0nf40d3vd75ni67fzt1m0s413hq583wwripm-07xhp3rarcbq78rxl29nfsbt7 10.0.2.15:2377

To add a manager to this swarm, run 'docker swarm join-token manager' and follow the instructions.

Note: token is needed to join the another node on swarm cluster

Check the information of nodes as leader:

sunny@Oracle1:~/Desktop$ docker node ls

ID                            HOSTNAME   STATUS    AVAILABILITY   MANAGER STATUS   ENGINE VERSION

qz7ctlqi486ogcmfchj8gphsb *   Oracle1    Ready     Active         Leader           20.10.22

Join another node as worker:

join node2 as worker, so run and get the key and command on node1:
#docker swarm join-token worker 

sunny@Oracle1:~/Desktop$ docker swarm join-token worker

To add a worker to this swarm, run the following command:

    docker swarm join --token SWMTKN-1-342v4g5c4mk1pl0nf40d3vd75ni67fzt1m0s413hq583wwripm-07xhp3rarcbq78rxl29nfsbt7 10.0.2.15:2377

You go to second node and run this command to add this node as worker:

Go to the second node and run the upper command to directly add the node in cluster:

node2# docker swarm join --token SWMTKN-1-342v4g5c4mk1pl0nf40d3vd75ni67fzt1m0s413hq583wwripm-07xhp3rarcbq78rxl29nfsbt7 10.0.2.15:2377

Check the node added in swarn cluster:

docker node ls