How to change node availability in docker swarm

0 votes

Hi Guys,

I have added one master node in the Docker swarm. I want to drain a manager node so that it only performs swarm management tasks and is unavailable for task assignment. How to do that?

Dec 28, 2020 in Docker by akhtar
• 38,170 points
259 views

1 answer to this question.

0 votes

Hi@akhtar,

You can change the node availability according to your need. You can perform the below operations.

  • drain a manager node so that only performs swarm management tasks and is unavailable for task assignment.

  • drain a node so you can take it down for maintenance.

  • pause a node so it can’t receive new tasks.

  • restore unavailable or paused nodes available status.

For example, to change a manager node to Drain availability.

$ docker node update --availability drain node-1
node-1
answered Dec 28, 2020 by MD
• 95,180 points

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