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Clarify the DRAIN state w/ regard to containers (#5811)

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* Clarify the DRAIN state w/ regard to containers

Bare containers are not state-reconciled, and are not affected by the swarm DRAIN state
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ada
2018-01-24 14:35:53 -05:00
committed by Misty Stanley-Jones
parent b68eee92b0
commit dd7a802a9d
1 changed files with 6 additions and 0 deletions
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6
engine/swarm/swarm-tutorial/drain-node.md
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@@ -14,6 +14,12 @@ availability. `DRAIN` availability prevents a node from receiving new tasks
from the swarm manager. It also means the manager stops tasks running on the
node and launches replica tasks on a node with `ACTIVE` availability.
> **Important**: Setting a node to `DRAIN` does not remove standalone containers from that node,
> such as those created with `docker run`, `docker-compose up`, or the Docker Engine
> API. A node's status, including `DRAIN`, only affects the node's ability to schedule
> swarm service workloads.
{:.important}
1. If you haven't already, open a terminal and ssh into the machine where you
run your manager node. For example, the tutorial uses a machine named
`manager1`.