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Add dial-stdio command

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This allows the buildx CLI to act a proxy to the configured instance.
It allows external code to use buildx itself as a driver for connecting
to buildkitd instances.

Instance and node selection should follow the same semantics as as
`buildx build`, including taking into account the `BUILDX_BUILDER` env
var and the `--builder` global flag.

Signed-off-by: Brian Goff <cpuguy83@gmail.com>
This commit is contained in:
Brian Goff
2023-11-13 23:57:12 +00:00
parent d0c4bed484
commit 760244ee3e
12 changed files with 461 additions and 27 deletions
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11
driver/docker-container/driver.go
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@ -384,13 +384,20 @@ func (d *Driver) Rm(ctx context.Context, force, rmVolume, rmDaemon bool) error {
return nil
}
func (d *Driver) Client(ctx context.Context) (*client.Client, error) {
func (d *Driver) Dial(ctx context.Context) (net.Conn, error) {
_, conn, err := d.exec(ctx, []string{"buildctl", "dial-stdio"})
if err != nil {
return nil, err
}
conn = demuxConn(conn)
return conn, nil
}
func (d *Driver) Client(ctx context.Context) (*client.Client, error) {
conn, err := d.Dial(ctx)
if err != nil {
return nil, err
}
exp, _, err := detect.Exporter()
if err != nil {