Issues listing stacks with cdk ls

[LuberCloudNinja]

Hi Community,

I'm having an issue listing my cdk stacks after I created a cdk pipeline, I dont undertsand the error I'm getting. Please see error message and code below:

Thanks in advance! :)

ERROR MESSAGE

cdk ls
jsii.errors.JavaScriptError: 
  Error: Object of type aws-cdk-lib.Stack is not convertible to aws-cdk-lib.Stage
      at Object.deserialize (/private/var/folders/cv/_vjl0lz14156c0bjv0lm1whh0000gq/T/tmp2uopxnxs/lib/program.js:9397:35)
      at Kernel._toSandbox (/private/var/folders/cv/_vjl0lz14156c0bjv0lm1whh0000gq/T/tmp2uopxnxs/lib/program.js:8771:69)
      at /private/var/folders/cv/_vjl0lz14156c0bjv0lm1whh0000gq/T/tmp2uopxnxs/lib/program.js:8819:42
      at Array.map (<anonymous>)
      at Kernel._boxUnboxParameters (/private/var/folders/cv/_vjl0lz14156c0bjv0lm1whh0000gq/T/tmp2uopxnxs/lib/program.js:8819:27)
      at Kernel._toSandboxValues (/private/var/folders/cv/_vjl0lz14156c0bjv0lm1whh0000gq/T/tmp2uopxnxs/lib/program.js:8805:29)
      at /private/var/folders/cv/_vjl0lz14156c0bjv0lm1whh0000gq/T/tmp2uopxnxs/lib/program.js:8236:150
      at Kernel._wrapSandboxCode (/private/var/folders/cv/_vjl0lz14156c0bjv0lm1whh0000gq/T/tmp2uopxnxs/lib/program.js:8848:24)
      at /private/var/folders/cv/_vjl0lz14156c0bjv0lm1whh0000gq/T/tmp2uopxnxs/lib/program.js:8236:107
      at Kernel._ensureSync (/private/var/folders/cv/_vjl0lz14156c0bjv0lm1whh0000gq/T/tmp2uopxnxs/lib/program.js:8829:28)

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "app.py", line 12, in <module>
    PipelineStack(app, 'PipelineStack', env={
  File "/Users/luberlovemagic/Documents/Education/STUDIES/AWS/DevOps/cdk/pipelines-webinar/.venv/lib/python3.8/site-packages/jsii/_runtime.py", line 86, in __call__
    inst = super().__call__(*args, **kwargs)
  File "/Users/luberlovemagic/Documents/Education/STUDIES/AWS/DevOps/cdk/pipelines-webinar/pipelines_webinar/pipeline_stack.py", line 53, in __init__
    deploy_stage = pipeline.add_stage(deploy)
  File "/Users/luberlovemagic/Documents/Education/STUDIES/AWS/DevOps/cdk/pipelines-webinar/.venv/lib/python3.8/site-packages/aws_cdk/pipelines/__init__.py", line 3306, in add_stage
    return typing.cast("StageDeployment", jsii.invoke(self, "addStage", [stage, options]))
  File "/Users/luberlovemagic/Documents/Education/STUDIES/AWS/DevOps/cdk/pipelines-webinar/.venv/lib/python3.8/site-packages/jsii/_kernel/__init__.py", line 143, in wrapped
    return _recursize_dereference(kernel, fn(kernel, *args, **kwargs))
  File "/Users/luberlovemagic/Documents/Education/STUDIES/AWS/DevOps/cdk/pipelines-webinar/.venv/lib/python3.8/site-packages/jsii/_kernel/__init__.py", line 355, in invoke
    response = self.provider.invoke(
  File "/Users/luberlovemagic/Documents/Education/STUDIES/AWS/DevOps/cdk/pipelines-webinar/.venv/lib/python3.8/site-packages/jsii/_kernel/providers/process.py", line 359, in invoke
    return self._process.send(request, InvokeResponse)
  File "/Users/luberlovemagic/Documents/Education/STUDIES/AWS/DevOps/cdk/pipelines-webinar/.venv/lib/python3.8/site-packages/jsii/_kernel/providers/process.py", line 326, in send
    raise JSIIError(resp.error) from JavaScriptError(resp.stack)
jsii.errors.JSIIError: Object of type aws-cdk-lib.Stack is not convertible to aws-cdk-lib.Stage

Subprocess exited with error 1
(.venv) luberlovemagic@Lubers-MBP pipelines-webinar (main) $ 

CODE

from argparse import Action
import code

from aws_cdk import (
    Duration,
    Stack,
    aws_codepipeline as codepipeline,
    pipelines as pipelines,
    aws_codepipeline_actions as cpactions,
    aws_secretsmanager as secretmanager,
    SecretValue
)
from os import path
from constructs import Construct
from .webservice_stage import WebServiceStage


class PipelineStack(Stack):

    def __init__(self, scope: Construct, construct_id: str, env, **kwargs) -> None:
        super().__init__(scope, construct_id, **kwargs)

        source_artifact = codepipeline.Artifact()
        cloud_assembly_artifact = codepipeline.Artifact()

        pipeline = pipelines.CodePipeline(
            self,
            "Pipeline",
            pipeline_name='WebinarPipeline',
            # cloud_assembly_artifact=cloud_assembly_artifact,

            synth=pipelines.ShellStep(
                "Synth",
                # source_artifact=source_artifact,
                # cloud_assembly_artifact=cloud_assembly_artifact,
                input=pipelines.CodePipelineSource.git_hub('LuberCloudNinja/cdk-pipeline-webinar', 'main',
                                                           authentication=SecretValue.secrets_manager(
                                                               'GitHub-token')
                                                           ),
                commands=[
                    "npm install -g aws-cdk",  # Installs the cdk cli on Codebuild
                    # Instructs Codebuild to install required packages
                    "pip install -r requirements.txt",
                    "npx cdk synth"
                ]
            ),

        )
        deploy = WebServiceStage(self, "Deploy", env=env)
        deploy_stage = pipeline.add_stage(deploy)

[peterwoodworth]

Hey @LuberCloudNinja,

I've copied your file, but instead of WebServiceStage I've created my own stage which includes a separately defined stack. I'm not running into any errors here; I'd say that either there's some error with the WebServiceStage stage you've built, or what I think is more likely is that one of your cdk modules is a different version from the rest / you didn't pip install -r requirements.txt since updating the versions.

To make sure it's not an error with anything you've done, try creating this in a fresh project and see if the issue persists

[LuberCloudNinja]

Hi @peterwoodworth, :)

You're correct, my WebserviceStage.py file has a class that was inheriting the wrong class (STACK) I changed it to the STAGE class instead and everything started working.

Thanks for taking time to help me bud!

Have a great week!

[github-actions[bot]]

Hello! Reopening this discussion to make it searchable.