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package build
import (
"context"
stderrors "errors"
"net"
"github.com/containerd/containerd/platforms"
"github.com/docker/buildx/builder"
"github.com/docker/buildx/util/progress"
v1 "github.com/opencontainers/image-spec/specs-go/v1"
"github.com/pkg/errors"
)
func Dial(ctx context.Context, nodes []builder.Node, pw progress.Writer, platform *v1.Platform) (net.Conn, error) {
nodes, err := filterAvailableNodes(nodes)
if err != nil {
return nil, err
}
if len(nodes) == 0 {
return nil, errors.New("no nodes available")
}
var pls []v1.Platform
if platform != nil {
pls = []v1.Platform{*platform}
}
opts := map[string]Options{"default": {Platforms: pls}}
resolved, err := resolveDrivers(ctx, nodes, opts, pw)
if err != nil {
return nil, err
}
var dialError error
for _, ls := range resolved {
for _, rn := range ls {
if platform != nil {
p := *platform
var found bool
for _, pp := range rn.platforms {
if platforms.Only(p).Match(pp) {
found = true
break
}
}
if !found {
continue
}
}
conn, err := nodes[rn.driverIndex].Driver.Dial(ctx)
if err == nil {
return conn, nil
}
dialError = stderrors.Join(err)
}
}
return nil, errors.Wrap(dialError, "no nodes available")
}
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