Previously, long lived CLI plugin processes weren't
properly handled
(see: https://github.com/docker/cli/issues/4402)
resulting in plugin processes being left behind
running, after the CLI process exits.
This commit changes the plugin handling code to open
an abstract unix socket before running the plugin and
passing it to the plugin process, and changes the
signal handling on the CLI side to close this socket
which tells the plugin that it should exit.
This implementation makes use of sockets instead of
simply setting PDEATHSIG on the plugin process
so that it will work on both BSDs, assorted UNIXes
and Windows.
Signed-off-by: Laura Brehm <laurabrehm@hey.com>
This copies the github.com/moby/buildkit/util/appcontext
package as an internal package. The appcontext package from
BuildKit was the only remaining dependency on BuildKit, and
while we may need some of its functionality, the implementation
is not correct for how it's used in docker/cli (so would need
a rewrite).
Moving a copy of the code into the docker/cli (but as internal
package to prevent others from depending on it) is a first step
in that process, and removes the circular dependency between
BuildKit and the CLi.
We are only using these:
tree vendor/github.com/moby/buildkit
vendor/github.com/moby/buildkit
├── AUTHORS
├── LICENSE
└── util
└── appcontext
├── appcontext.go
├── appcontext_unix.go
├── appcontext_windows.go
└── register.go
3 directories, 6 files
Before this:
go mod graph | grep ' github.com/docker/cli'
github.com/moby/buildkit@v0.11.6 github.com/docker/cli@v23.0.0-rc.1+incompatible
After this:
go mod graph | grep ' github.com/docker/cli'
# (nothing)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Laura Brehm
Sebastiaan van Stijn