agent,manager,node: define our own plugin ifaces #3171
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Allow Moby plugins to be used without Swarmkit having to import github.com/docker/docker packages by defining our own interfaces which cover the subset of functionality we use. Adapters will have to be written on the Moby side as their API contains methods which return concrete struct types, but they only need to be trivial wrappers as their *plugins.Client satisfies our plugin.Client interface. Signed-off-by: Cory Snider <csnider@mirantis.com>
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Codecov Report
Additional details and impacted files@@ Coverage Diff @@
## master #3171 +/- ##
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+ Coverage 55.74% 55.75% +0.01%
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Files 158 158
Lines 33196 33196
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+ Hits 18506 18510 +4
+ Misses 13228 13225 -3
+ Partials 1462 1461 -1 |
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- What I did
Allow Moby plugins to be used without Swarmkit having to import github.com/docker/docker packages by defining our own interfaces which cover the subset of functionality we use. Adapters will have to be written on the Moby side as their API contains methods which return concrete struct types, but they only need to be trivial wrappers as their
*plugins.Clientsatisfies ourplugin.Clientinterface.The manager/allocator/cnmallocator package was not modified and continues to import the plugin types defined in github.com/docker/docker. It also imports many other packages under github.com/docker/docker. The package will be moved out of Swarmkit into github.com/docker/docker as the final step of dropping our dependency on docker/docker.
- How I did it
- How to test it
- Description for the changelog
(node.Config).PluginGetteris now an interface defined in the swarmkit module which"github.com/docker/docker/plugin".Storedoes not satisfy. Adapter types may be required.