Previously, if a long-lived plugin process (such as
an execution of `compose up`) was running and then
detached from a terminal, signalling the parent CLI
process to exit would leave the plugin process behind.
To address this, changes were introduced on the CLI side
(see: https://github.com/docker/cli/pull/4599) to enable
the CLI to notify a running plugin process that it should
exit. This makes it so that, when the parent CLI process
is going to exit, the command context of the plugin
command being executed is cancelled.
This commit takes advantage of these changes by tapping into
the command context's done channel and using it to teardown
on an up.
Signed-off-by: Laura Brehm <laurabrehm@hey.com>
If running `up` in foreground mode (i.e. not `-d`),
when exiting via `Ctrl-C`, Compose stops all the
services it launched directly as part of that `up`
command.
In one of the E2E tests (`TestUpDependenciesNotStopped`),
this was occasionally flaking because the stop
behavior was racy: the return might not block on
the stop operation because it gets added to the
error group in a goroutine. As a result, it was
possible for no services to get terminated on exit.
There were a few other related pieces here that
I uncovered and tried to fix while stressing this.
For example, the printer could cause a deadlock if
an event was sent to it after it stopped.
Also, an error group wasn't really appropriate here;
each goroutine is a different operation for printing,
signal-handling, etc. If one part fails, we don't
actually want printing to stop, for example. This has
been switched to a `multierror.Group`, which has the
same API but coalesces errors instead of canceling a
context the moment the first one fails and returning
that single error.
Signed-off-by: Milas Bowman <milas.bowman@docker.com>
This keeps parity with v1, where only the containers explicitly
passed to `up` are torn down when `Ctrl-C` is hit, so any
dependencies that got launched (or orphan containers hanging
around) should not be touched.
Fixes#9696.
Signed-off-by: Milas Bowman <milas.bowman@docker.com>
Nicolas De Loof
jhrotko
Laura Brehm
vyneer
Milas Bowman
Guillaume Lours
TP-O
Ulysses Souza
Mehrad Dadar