cue modules: move stdlib to pkg/alpha.dagger.io

In preparation for Europa, we will vendor multiple CUE modules:

- `pkg/alpha.dagger.io`: legacy non-europa packages
- `pkg/dagger.io`: core Europa packages
- `pkg/universe.dagger.io`: Europa universe

Signed-off-by: Andrea Luzzardi <aluzzardi@gmail.com>

pkg/alpha.dagger.io/gcp/cloudrun/cloudrun.cue

@@ -0,0 +1,66 @@
+package cloudrun
+
+import (
+	"strings"
+
+	"alpha.dagger.io/dagger/op"
+	"alpha.dagger.io/gcp"
+)
+
+// Service deploys a Cloud Run service based on provided GCR image
+#Service: {
+	// GCP Config
+	config: gcp.#Config
+
+	// Cloud Run service name
+	name: string @dagger(input)
+
+	// GCR image ref
+	image: string @dagger(input)
+
+	// Cloud Run platform
+	platform: *"managed" | string @dagger(input)
+
+	// Cloud Run service exposed port
+	port: *"80" | string @dagger(input)
+
+	// Cloud Run service environment variables
+	env: [string]: string
+	_envVars: [ for key, val in env {key + "=" + val}]
+
+	#up: [
+		op.#Load & {
+			from: gcp.#GCloud & {
+				"config": config
+			}
+		},
+
+		op.#Exec & {
+			args: [
+				"/bin/bash",
+				"--noprofile",
+				"--norc",
+				"-eo",
+				"pipefail",
+				"-c",
+				#"""
+					gcloud run deploy "$SERVICE_NAME" \
+						--image "$IMAGE" \
+						--region "$REGION" \
+						--port "$PORT" \
+						--platform "$PLATFORM" \
+						--allow-unauthenticated \
+						--set-env-vars "$ENV_VARS"
+					"""#,
+			]
+			env: {
+				SERVICE_NAME: name
+				PLATFORM:     platform
+				REGION:       config.region
+				IMAGE:        image
+				PORT:         port
+				ENV_VARS:     strings.Join(_envVars, ",")
+			}
+		},
+	]
+}

pkg/alpha.dagger.io/gcp/cloudrun/tests/cloudrun.cue

@@ -0,0 +1,18 @@
+package cloudrun
+
+import (
+	"alpha.dagger.io/gcp"
+	"alpha.dagger.io/gcp/cloudrun"
+)
+
+TestConfig: gcpConfig: gcp.#Config
+
+TestCloudRun: deploy: cloudrun.#Service & {
+	config: TestConfig.gcpConfig
+	name:   "todoapp"
+	image:  "gcr.io/dagger-ci/todoapp:latest"
+	env: {
+		FOO: "foo"
+		BAR: "bar"
+	}
+}