How to add a node as a manager in swarm cluster?

+1 vote
I am having a swarm cluster in which I have connected four machines as a worker and one machine as a Manager. I want to make my cluster highly available for which I have to add more managers to my cluster.

I don't know how to achieve that. Can anyone tell that if there is a possible way to join the node as a manager in my cluster?

Can anyone resolve my query?

Thanks.
Dec 10, 2018 in DevOps & Agile by Shubham
• 980 points
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+1 vote

Here is what you can try and your work will be done.

Use the command mentioned below to generate a token.

docker swarm join-token manager

This will generate a token for you which you have to copy and paste on those machines which is to be added as Swarm manager.

 docker swarm join \
    --token SWMTKN-1-61ztec5kyafptydic6jfc1i33t37flcl4nuipzcusor96k7kby-5vy9t8u35tuqm7vh67lrz9xp6 \
    192.168.99.100:2377

By pasting this token over those machine, you'll be able to add them as manager.

I hope the above information will resolve your query. 

answered Dec 10, 2018 by Damon Salvatore
• 5,390 points

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