remote: use --bootstrap to wait for remote to become active

Signed-off-by: Justin Chadwell <me@jedevc.com>

.github/workflows/e2e.yml

@@ -139,28 +139,13 @@ jobs:
         name: Launch remote buildkitd
         if: matrix.driver == 'remote'
         run: |
-          docker run -d --privileged \
+          docker run -d \
+            --privileged \
             --name=remote-buildkit \
             -p 1234:1234 \
-            --health-cmd "buildctl debug workers" \
-            --health-interval 1s \
             ${{ matrix.buildkit }} \
             --addr unix:///run/buildkit/buildkitd.sock \
             --addr tcp://0.0.0.0:1234
-      -
-        name: Check remote buildkitd
-        if: matrix.driver == 'remote'
-        run: |
-          try=0
-          max=10
-          until [ "$(docker container inspect remote-buildkit --format '{{ .State.Health.Status }}')" = "healthy" ]; do
-            if [ $try -gt $max ]; then
-              echo >&2 "healthcheck failed after $max trials"
-              exit 1
-            fi
-            sleep $(awk "BEGIN{print (100 + $try * 20) * 0.002}")
-            try=$(expr $try + 1)
-          done
       -
         name: Test
         run: |

driver/remote/driver.go

@@ -2,11 +2,11 @@ package remote
 
 import (
 	"context"
+	"time"
 
 	"github.com/docker/buildx/driver"
 	"github.com/docker/buildx/util/progress"
 	"github.com/moby/buildkit/client"
-	"github.com/pkg/errors"
 )
 
 type Driver struct {
@@ -23,17 +23,39 @@ type tlsOpts struct {
 }
 
 func (d *Driver) Bootstrap(ctx context.Context, l progress.Logger) error {
-	return nil
+	for i := 0; ; i++ {
+		info, err := d.Info(ctx)
+		if err != nil {
+			return err
+		}
+		if info.Status != driver.Inactive {
+			return nil
+		}
+
+		select {
+		case <-ctx.Done():
+			return ctx.Err()
+		default:
+			if i > 10 {
+				i = 10
+			}
+			time.Sleep(time.Duration(i) * time.Second)
+		}
+	}
 }
 
 func (d *Driver) Info(ctx context.Context) (*driver.Info, error) {
 	c, err := d.Client(ctx)
 	if err != nil {
-		return nil, errors.Wrapf(driver.ErrNotConnecting, err.Error())
+		return &driver.Info{
+			Status: driver.Inactive,
+		}, nil
 	}
 
 	if _, err := c.ListWorkers(ctx); err != nil {
-		return nil, errors.Wrapf(driver.ErrNotConnecting, err.Error())
+		return &driver.Info{
+			Status: driver.Inactive,
+		}, nil
 	}
 
 	return &driver.Info{

hack/test-driver

@@ -55,6 +55,7 @@ if [ "$DRIVER" != "docker" ]; then
         createFlags="$createFlags --append"
       fi
       buildxCmd create ${createFlags} \
+        --bootstrap \
         --name="${builderName}" \
         --node="${builderName}-${platform/\//-}" \
         --platform="${platform}" \
@@ -69,6 +70,7 @@ if [ "$DRIVER" != "docker" ]; then
       createFlags="$createFlags --config=${BUILDKIT_CFG}"
     fi
     buildxCmd create ${createFlags} \
+      --bootstrap \
       --name="${builderName}" \
       --platform="${PLATFORMS}" \
       --driver="${DRIVER}" \