docker_swarm: hopefully fix debug CI problems, and fix check mode (#52825)

* Let's see some debug output.

* Also check LocalNodeState.

* Improve tests.

* Actually implement check mode.

* Add changelog.

* Add pretty-printing and more output.
This commit is contained in:
Felix Fontein 2019-02-23 23:18:17 +01:00 committed by ansibot
commit 81d58cfef6
5 changed files with 93 additions and 33 deletions

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bugfixes:
- "docker_swarm - improve Swarm detection."
- "docker_swarm - properly implement check mode (it did apply changes)."