Fixes#1399
This versions the prometheus metrics API so we can manage backwards
incompatible changes in the future more easily.
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
Fixes#1499
This traps any Accept() errors on server shutdown so that it exits
cleanly.
It also changes gracefulstop to stop on the grpc server as the daemon
will not shutdown if there are connected clients.
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
In the course of setting out to add filters and address some cleanup, it
was found that we had a few problems in the events subsystem that needed
addressing before moving forward.
The biggest change was to move to the more standard terminology of
publish and subscribe. We make this terminology change across the Go
interface and the GRPC API, making the behavior more familier. The
previous system was very context-oriented, which is no longer required.
With this, we've removed a large amount of dead and unneeded code. Event
transactions, context storage and the concept of `Poster` is gone. This
has been replaced in most places with a `Publisher`, which matches the
actual usage throughout the codebase, removing the need for helpers.
There are still some questions around the way events are handled in the
shim. Right now, we've preserved some of the existing bugs which may
require more extensive changes to resolve correctly.
Signed-off-by: Stephen J Day <stephen.day@docker.com>
Allow plugins to be mapped and returned by their ID.
Add skip plugin to allow plugins to decide whether they should
be loaded.
Signed-off-by: Derek McGowan <derek@mcgstyle.net>
