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moby--moby/api/server
Sebastiaan van Stijn 81eef17e38
Return a warning when running in a two-manager setup
Running a cluster in a two-manager configuration effectively *doubles*
the chance of loosing control over the cluster (compared to running
in a single-manager setup). Users may have the assumption that having
two managers provides fault tolerance, so it's best to warn them if
they're using this configuration.

This patch adds a warning to the `info` response if Swarm is configured
with two managers:

    WARNING: Running Swarm in a two-manager configuration. This configuration provides
             no fault tolerance, and poses a high risk to loose control over the cluster.
             Refer to https://docs.docker.com/engine/swarm/admin_guide/ to configure the
             Swarm for fault-tolerance.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2019-03-18 14:36:00 +01:00
..
backend/build builder: add prune options to the API 2018-09-01 22:01:17 +00:00
httputils Move httputils error helpers to errdefs package 2019-03-16 00:42:23 +01:00
middleware api/server, dockerversion: modify context key 2018-08-22 11:20:22 +09:00
router Return a warning when running in a two-manager setup 2019-03-18 14:36:00 +01:00
middleware.go Add canonical import comment 2018-02-05 16:51:57 -05:00
router_swapper.go Add canonical import comment 2018-02-05 16:51:57 -05:00
server.go Move httputils error helpers to errdefs package 2019-03-16 00:42:23 +01:00
server_test.go Various code-cleanup 2018-05-23 17:50:54 +02:00