CI: move grafana-build into pkg/build (#105640)

* move grafana-build into pkg/build

pkg/build/daggerbuild/docker/verify.go

@@ -0,0 +1,45 @@
+package docker
+
+import (
+	"context"
+	"fmt"
+
+	"dagger.io/dagger"
+	"github.com/grafana/grafana/pkg/build/daggerbuild/backend"
+	"github.com/grafana/grafana/pkg/build/daggerbuild/containers"
+	"github.com/grafana/grafana/pkg/build/daggerbuild/e2e"
+	"github.com/grafana/grafana/pkg/build/daggerbuild/frontend"
+)
+
+// Verify uses the given package (.docker.tar.gz) and grafana source code (src) to run the e2e smoke tests.
+// the returned directory is the e2e artifacts created by cypress (screenshots and videos).
+func Verify(
+	ctx context.Context,
+	d *dagger.Client,
+	image *dagger.File,
+	src *dagger.Directory,
+	yarnCache *dagger.CacheVolume,
+	distro backend.Distribution,
+) error {
+	nodeVersion, err := frontend.NodeVersion(d, src).Stdout(ctx)
+	if err != nil {
+		return fmt.Errorf("failed to get node version from source code: %w", err)
+	}
+
+	var (
+		platform = backend.Platform(distro)
+	)
+
+	// This grafana service runs in the background for the e2e tests
+	service := d.Container(dagger.ContainerOpts{
+		Platform: platform,
+	}).
+		WithMountedTemp("/var/lib/grafana/plugins").
+		Import(image).
+		WithExposedPort(3000)
+
+		// TODO: Add LICENSE to containers and implement validation
+	container := e2e.ValidatePackage(d, service.AsService(), src, yarnCache, nodeVersion)
+	_, err = containers.ExitError(ctx, container)
+	return err
+}