Merge pull request #338 from dagger/pushcontainer-image-ref

Pushcontainer image ref

dagger/pipeline.go

@@ -627,7 +627,7 @@ func (p *Pipeline) PushContainer(ctx context.Context, op *compiler.Value, st llb
 	// Add the default tag "latest" to a reference if it only has a repo name.
 	ref = reference.TagNameOnly(ref)
 
-	_, err = p.s.Export(ctx, p.State(), &p.image, bk.ExportEntry{
+	resp, err := p.s.Export(ctx, p.State(), &p.image, bk.ExportEntry{
 		Type: bk.ExporterImage,
 		Attrs: map[string]string{
 			"name": ref.String(),
@@ -635,6 +635,29 @@ func (p *Pipeline) PushContainer(ctx context.Context, op *compiler.Value, st llb
 		},
 	})
 
+	if err != nil {
+		return st, err
+	}
+
+	if digest, ok := resp.ExporterResponse["containerimage.digest"]; ok {
+		imageRef := fmt.Sprintf(
+			"%s@%s",
+			resp.ExporterResponse["image.name"],
+			digest,
+		)
+
+		return st.File(
+			llb.Mkdir("/dagger", fs.FileMode(0755)),
+			llb.WithCustomName(p.vertexNamef("Mkdir /dagger")),
+		).File(
+			llb.Mkfile("/dagger/image_digest", fs.FileMode(0644), []byte(digest)),
+			llb.WithCustomName(p.vertexNamef("Storing image digest to /dagger/image_digest")),
+		).File(
+			llb.Mkfile("/dagger/image_ref", fs.FileMode(0644), []byte(imageRef)),
+			llb.WithCustomName(p.vertexNamef("Storing image ref to /dagger/image_ref")),
+		), nil
+	}
+
 	return st, err
 }
 

examples/jamstack/ecr_image.cue

@@ -25,21 +25,26 @@ import (
 		target: pushTarget
 	}
 
-	push: #up: [
+	ref: {
-		// Build the docker image
+		string
-		op.#DockerBuild & {
-			context: source
-			if dockerfilePath != _|_ {
-				"dockerfilePath": dockerfilePath
-			}
-			buildArg: buildArgs
-		},
-		// Push the image to the registry
-		op.#PushContainer & {
-			ref: pushTarget
-		},
-	]
 
-	// FIXME: ref does not include the sha256: https://github.com/dagger/dagger/issues/303
+		#up: [
-	ref: pushTarget
+			// Build the docker image
+			op.#DockerBuild & {
+				context: source
+				if dockerfilePath != _|_ {
+					"dockerfilePath": dockerfilePath
+				}
+				buildArg: buildArgs
+			},
+			// Push the image to the registry
+			op.#PushContainer & {
+				ref: pushTarget
+			},
+			op.#Export & {
+				source: "/dagger/image_ref"
+				format: "string"
+			},
+		]
+	}
 }