Implement modifications for engine.#Dockerfile tests, and fix lint errors

Signed-off-by: guillaume <guillaume.derouville@gmail.com>

pkg/dagger.io/dagger/engine/image.cue

@@ -69,7 +69,7 @@ package engine
 	// Authentication
 	auth?: {
 		username: string
-		secret:   string | #Secret
+		secret:   #Secret
 	}
 
 	// Root filesystem of downloaded image
@@ -96,11 +96,10 @@ package engine
 	}
 
 	// Authentication
-	auth: [...{
-		target:   string
+	auth: [registry=string]: {
 		username: string
-		secret:   string | #Secret
-	}]
+		secret:   #Secret
+	}
 
 	platforms?: [...string]
 	target?: string

plan/task/dockerfile.go

@@ -30,15 +30,24 @@ type dockerfileTask struct {
 
 func (t *dockerfileTask) Run(ctx context.Context, pctx *plancontext.Context, s solver.Solver, v *compiler.Value) (*compiler.Value, error) {
 	lg := log.Ctx(ctx)
-
-	// Read auth info
-	auth, err := decodeAuthValue(pctx, v.Lookup("auth"))
+	auths, err := v.Lookup("auth").Fields()
 	if err != nil {
 		return nil, err
 	}
-	for _, a := range auth {
-		s.AddCredentials(a.Target, a.Username, a.Secret.PlainText())
-		lg.Debug().Str("target", a.Target).Msg("add target credentials")
+
+	for _, auth := range auths {
+		// Read auth info
+		a, err := decodeAuthValue(pctx, auth.Value)
+		if err != nil {
+			return nil, err
+		}
+		// Extract registry target from dest
+		target, err := solver.ParseAuthHost(auth.Label())
+		if err != nil {
+			return nil, err
+		}
+		s.AddCredentials(target, a.Username, a.Secret.PlainText())
+		lg.Debug().Str("target", target).Msg("add target credentials")
 	}
 
 	source, err := pctx.FS.FromValue(v.Lookup("source"))

tests/tasks/dockerfile/build_auth.cue

@@ -22,12 +22,10 @@ engine.#Plan & {
 
 		build: engine.#Dockerfile & {
 			source: inputs.directories.testdata.contents
-			auth: [{
-				target:   "daggerio/ci-test:private-pull"
+			auth: "daggerio/ci-test:private-pull": {
 				username: "daggertest"
-
 				secret:   sopsSecrets.output.DOCKERHUB_TOKEN.contents
-			}]
+			}
 			dockerfile: contents: """
 				FROM daggerio/ci-test:private-pull@sha256:c74f1b1166784193ea6c8f9440263b9be6cae07dfe35e32a5df7a31358ac2060
 				"""