CODEWITHSUNDEEP
dockerdocker-swarm
Dzhuneyt
Dzhuneyt

Reputation: 8701

Will changing the Linux hostname of a Docker Swarm manager cause it to lose its Swarm Manager status?

If I change the Ubuntu hostname of a Docker Swarm node that serves as Manager node, will it cause other nodes to lose "trust" in it as a Manager?

Upvotes: 1

Views: 70

Answers (1)

Frank Louwers
Frank Louwers

Reputation: 643

There might be options where this would work without breaking. However, I've seen $bad-things happen when people change hostnames or /etc/hosts in a running swarm. Especially as this is a swarm manager, I wouldn't try to do that.

What I would recommend:

  • remove the manager from the swarm (you do run your swarm with 3, 5 or 7 managers, right?)
  • change whatever you need to change
  • rejoin the manager to the swarm

Upvotes: 2

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