Fix Container App py example (pulumi#1108)

azure-py-containerapps/__main__.py

@@ -4,7 +4,7 @@
 from pulumi_azure_native import containerregistry
 from pulumi_azure_native import operationalinsights
 from pulumi_azure_native import resources
-from pulumi_azure_native import web
+import pulumi_azure_native.web.v20210301 as web
 import pulumi_docker as docker
 
 resource_group = resources.ResourceGroup("rg")
@@ -35,18 +35,17 @@
     sku=containerregistry.SkuArgs(name="Basic"),
     admin_user_enabled=True)
 
-credentials = pulumi.Output.all(resource_group.name, registry.name) \
-    .apply(lambda args: containerregistry.list_registry_credentials(
-        resource_group_name=args[0],
-        registry_name=args[1]
-    ))
-admin_username = credentials.Apply(lambda c: c.username)
-admin_password = credentials.Apply(lambda c: c.passwords[0])
+credentials = pulumi.Output.all(resource_group.name, registry.name).apply(
+    lambda args: containerregistry.list_registry_credentials(resource_group_name=args[0],
+                                                             registry_name=args[1]))
+admin_username = credentials.username
+admin_password = credentials.passwords[0]["value"]
 
 custom_image = "node-app"
 my_image = docker.Image(custom_image,
-    image_name=Output.concat(registry.login_server, "/", custom_image, ":v1.0.0"),
-    build=docker.DockerBuild(context = Output.concat("./", custom_image)),
+    image_name=registry.login_server.apply(
+        lambda login_server: f"{login_server}/{custom_image}:v1.0.0"),
+    build=docker.DockerBuild(context=f"./{custom_image}"),
     registry=docker.ImageRegistry(
         server=registry.login_server,
         username=admin_username,