如何解决AWS CDK解决方案错误：无法使用循环引用解析对象树
我有一个堆栈（etl_stack_2.py），用于初始化Partner构造和OrderWorkflow构造。因此partner和OrderWorkFlow是树中的兄弟。合作伙伴具有JobWorkFlow使用的job属性。运行cdk ls时，出现循环引用错误：
$ cdk ls
jsii.errors.JavaScriptError:
Error: Resolution error: Resolution error: Unable to resolve object tree with circular reference. Path: /Resources/${Token[data-lake-etl-infra-dev.order_workflow-dev.order_workflow_start_trigger-dev.LogicalID.100]}/Properties/actions/0/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host.
Object creation stack:
at new Intrinsic (/private/var/folders/gd/gpl89dgn5f7c8mzqx3dc8hzh0000gr/T/jsii-kernel-hDzf8X/node_modules/@aws-cdk/core/lib/private/intrinsic.js:21:44)
at new PostResolveToken (/private/var/folders/gd/gpl89dgn5f7c8mzqx3dc8hzh0000gr/T/jsii-kernel-hDzf8X/node_modules/@aws-cdk/core/lib/util.js:73:9)
at Object.ignoreEmpty (/private/var/folders/gd/gpl89dgn5f7c8mzqx3dc8hzh0000gr/T/jsii-kernel-hDzf8X/node_modules/@aws-cdk/core/lib/util.js:33:12)
at CfnTrigger._toCloudFormation (/private/var/folders/gd/gpl89dgn5f7c8mzqx3dc8hzh0000gr/T/jsii-kernel-hDzf8X/node_modules/@aws-cdk/core/lib/cfn-resource.js:237:44)
at /private/var/folders/gd/gpl89dgn5f7c8mzqx3dc8hzh0000gr/T/jsii-kernel-hDzf8X/node_modules/@aws-cdk/core/lib/private/refs.js:100:74
at Object.findTokens (/private/var/folders/gd/gpl89dgn5f7c8mzqx3dc8hzh0000gr/T/jsii-kernel-hDzf8X/node_modules/@aws-cdk/core/lib/private/resolve.js:128:13)
at findAllReferences (/private/var/folders/gd/gpl89dgn5f7c8mzqx3dc8hzh0000gr/T/jsii-kernel-hDzf8X/node_modules/@aws-cdk/core/lib/private/refs.js:100:38)
at Object.resolveReferences (/private/var/folders/gd/gpl89dgn5f7c8mzqx3dc8hzh0000gr/T/jsii-kernel-hDzf8X/node_modules/@aws-cdk/core/lib/private/refs.js:23:19)
at Object.prepareApp (/private/var/folders/gd/gpl89dgn5f7c8mzqx3dc8hzh0000gr/T/jsii-kernel-hDzf8X/node_modules/@aws-cdk/core/lib/private/prepare-app.js:34:16)
at Object.synthesize (/private/var/folders/gd/gpl89dgn5f7c8mzqx3dc8hzh0000gr/T/jsii-kernel-hDzf8X/node_modules/@aws-cdk/core/lib/private/synthesis.js:18:19)
at App.synth (/private/var/folders/gd/gpl89dgn5f7c8mzqx3dc8hzh0000gr/T/jsii-kernel-hDzf8X/node_modules/@aws-cdk/core/lib/stage.js:78:41)
at /Users/honarmand/xyz/xyz-data-lake/data-lake-etl-infra/venv/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:7756:51
at Kernel._wrapSandboxCode (/Users/honarmand/xyz/xyz-data-lake/data-lake-etl-infra/venv/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:8405:20)
at /Users/honarmand/xyz/xyz-data-lake/data-lake-etl-infra/venv/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:7756:25
at Kernel._ensureSync (/Users/honarmand/xyz/xyz-data-lake/data-lake-etl-infra/venv/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:8381:20)
at Kernel.invoke (/Users/honarmand/xyz/xyz-data-lake/data-lake-etl-infra/venv/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:7755:26)
at KernelHost.processRequest (/Users/honarmand/xyz/xyz-data-lake/data-lake-etl-infra/venv/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:7456:28)
at KernelHost.run (/Users/honarmand/xyz/xyz-data-lake/data-lake-etl-infra/venv/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:7394:14)
at Immediate._onImmediate (/Users/honarmand/xyz/xyz-data-lake/data-lake-etl-infra/venv/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:7397:37)
at processImmediate (internal/timers.js:456:21).
Object creation stack:
at new Intrinsic (/private/var/folders/gd/gpl89dgn5f7c8mzqx3dc8hzh0000gr/T/jsii-kernel-hDzf8X/node_modules/@aws-cdk/core/lib/private/intrinsic.js:21:44)
at new PostResolveToken (/private/var/folders/gd/gpl89dgn5f7c8mzqx3dc8hzh0000gr/T/jsii-kernel-hDzf8X/node_modules/@aws-cdk/core/lib/util.js:73:9)
at CfnTrigger._toCloudFormation (/private/var/folders/gd/gpl89dgn5f7c8mzqx3dc8hzh0000gr/T/jsii-kernel-hDzf8X/node_modules/@aws-cdk/core/lib/cfn-resource.js:235:39)
at /private/var/folders/gd/gpl89dgn5f7c8mzqx3dc8hzh0000gr/T/jsii-kernel-hDzf8X/node_modules/@aws-cdk/core/lib/private/refs.js:100:74
at Object.findTokens (/private/var/folders/gd/gpl89dgn5f7c8mzqx3dc8hzh0000gr/T/jsii-kernel-hDzf8X/node_modules/@aws-cdk/core/lib/private/resolve.js:128:13)
at findAllReferences (/private/var/folders/gd/gpl89dgn5f7c8mzqx3dc8hzh0000gr/T/jsii-kernel-hDzf8X/node_modules/@aws-cdk/core/lib/private/refs.js:100:38)
at Object.resolveReferences (/private/var/folders/gd/gpl89dgn5f7c8mzqx3dc8hzh0000gr/T/jsii-kernel-hDzf8X/node_modules/@aws-cdk/core/lib/private/refs.js:23:19)
at Object.prepareApp (/private/var/folders/gd/gpl89dgn5f7c8mzqx3dc8hzh0000gr/T/jsii-kernel-hDzf8X/node_modules/@aws-cdk/core/lib/private/prepare-app.js:34:16)
at Object.synthesize (/private/var/folders/gd/gpl89dgn5f7c8mzqx3dc8hzh0000gr/T/jsii-kernel-hDzf8X/node_modules/@aws-cdk/core/lib/private/synthesis.js:18:19)
at App.synth (/private/var/folders/gd/gpl89dgn5f7c8mzqx3dc8hzh0000gr/T/jsii-kernel-hDzf8X/node_modules/@aws-cdk/core/lib/stage.js:78:41)
at /Users/honarmand/xyz/xyz-data-lake/data-lake-etl-infra/venv/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:7756:51
at Kernel._wrapSandboxCode (/Users/honarmand/xyz/xyz-data-lake/data-lake-etl-infra/venv/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:8405:20)
at /Users/honarmand/xyz/xyz-data-lake/data-lake-etl-infra/venv/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:7756:25
at Kernel._ensureSync (/Users/honarmand/xyz/xyz-data-lake/data-lake-etl-infra/venv/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:8381:20)
at Kernel.invoke (/Users/honarmand/xyz/xyz-data-lake/data-lake-etl-infra/venv/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:7755:26)
at KernelHost.processRequest (/Users/honarmand/xyz/xyz-data-lake/data-lake-etl-infra/venv/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:7456:28)
at KernelHost.run (/Users/honarmand/xyz/xyz-data-lake/data-lake-etl-infra/venv/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:7394:14)
at Immediate._onImmediate (/Users/honarmand/xyz/xyz-data-lake/data-lake-etl-infra/venv/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:7397:37)
at processImmediate (internal/timers.js:456:21)
at resolve (/private/var/folders/gd/gpl89dgn5f7c8mzqx3dc8hzh0000gr/T/jsii-kernel-hDzf8X/node_modules/@aws-cdk/core/lib/private/resolve.js:35:15)
at Object.resolve (/private/var/folders/gd/gpl89dgn5f7c8mzqx3dc8hzh0000gr/T/jsii-kernel-hDzf8X/node_modules/@aws-cdk/core/lib/private/resolve.js:29:33)
at resolve (/private/var/folders/gd/gpl89dgn5f7c8mzqx3dc8hzh0000gr/T/jsii-kernel-hDzf8X/node_modules/@aws-cdk/core/lib/private/resolve.js:113:43)
at Object.resolve (/private/var/folders/gd/gpl89dgn5f7c8mzqx3dc8hzh0000gr/T/jsii-kernel-hDzf8X/node_modules/@aws-cdk/core/lib/private/resolve.js:29:33)
at resolve (/private/var/folders/gd/gpl89dgn5f7c8mzqx3dc8hzh0000gr/T/jsii-kernel-hDzf8X/node_modules/@aws-cdk/core/lib/private/resolve.js:113:43)
at Object.resolve (/private/var/folders/gd/gpl89dgn5f7c8mzqx3dc8hzh0000gr/T/jsii-kernel-hDzf8X/node_modules/@aws-cdk/core/lib/private/resolve.js:29:33)
at resolve (/private/var/folders/gd/gpl89dgn5f7c8mzqx3dc8hzh0000gr/T/jsii-kernel-hDzf8X/node_modules/@aws-cdk/core/lib/private/resolve.js:113:43)
at Object.resolve (/private/var/folders/gd/gpl89dgn5f7c8mzqx3dc8hzh0000gr/T/jsii-kernel-hDzf8X/node_modules/@aws-cdk/core/lib/private/resolve.js:29:33)
at resolve (/private/var/folders/gd/gpl89dgn5f7c8mzqx3dc8hzh0000gr/T/jsii-kernel-hDzf8X/node_modules/@aws-cdk/core/lib/private/resolve.js:113:43)
at Kernel._wrapSandboxCode (/Users/honarmand/xyz/xyz-data-lake/data-lake-etl-infra/venv/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:8408:19)
at /Users/honarmand/xyz/xyz-data-lake/data-lake-etl-infra/venv/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:7756:25
at Kernel._ensureSync (/Users/honarmand/xyz/xyz-data-lake/data-lake-etl-infra/venv/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:8381:20)
at Kernel.invoke (/Users/honarmand/xyz/xyz-data-lake/data-lake-etl-infra/venv/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:7755:26)
at KernelHost.processRequest (/Users/honarmand/xyz/xyz-data-lake/data-lake-etl-infra/venv/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:7456:28)
at KernelHost.run (/Users/honarmand/xyz/xyz-data-lake/data-lake-etl-infra/venv/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:7394:14)
at Immediate._onImmediate (/Users/honarmand/xyz/xyz-data-lake/data-lake-etl-infra/venv/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:7397:37)
at processImmediate (internal/timers.js:456:21)
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "app.py",line 13,in <module>
app.synth()
File "/Users/honarmand/xyz/xyz-data-lake/data-lake-etl-infra/venv/lib/python3.7/site-packages/aws_cdk/core/__init__.py",line 11531,in synth
return jsii.invoke(self,"synth",[options])
File "/Users/honarmand/xyz/xyz-data-lake/data-lake-etl-infra/venv/lib/python3.7/site-packages/jsii/_kernel/__init__.py",line 122,in wrapped
return _recursize_dereference(kernel,fn(kernel,*args,**kwargs))
File "/Users/honarmand/xyz/xyz-data-lake/data-lake-etl-infra/venv/lib/python3.7/site-packages/jsii/_kernel/__init__.py",line 320,in invoke
args=_make_reference_for_native(self,args),File "/Users/honarmand/xyz/xyz-data-lake/data-lake-etl-infra/venv/lib/python3.7/site-packages/jsii/_kernel/providers/process.py",line 351,in invoke
return self._process.send(request,InvokeResponse)
File "/Users/honarmand/xyz/xyz-data-lake/data-lake-etl-infra/venv/lib/python3.7/site-packages/jsii/_kernel/providers/process.py",line 321,in send
raise JSIIError(resp.error) from JavaScriptError(resp.stack)
jsii.errors.JSIIError: Resolution error: Resolution error: Unable to resolve object tree with circular reference. Path: /Resources/${Token[data-lake-etl-infra-dev.order_workflow-dev.order_workflow_start_trigger-dev.LogicalID.100]}/Properties/actions/0/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host/node/host.
Object creation stack:
at new Intrinsic (/private/var/folders/gd/gpl89dgn5f7c8mzqx3dc8hzh0000gr/T/jsii-kernel-hDzf8X/node_modules/@aws-cdk/core/lib/private/intrinsic.js:21:44)
at new PostResolveToken (/private/var/folders/gd/gpl89dgn5f7c8mzqx3dc8hzh0000gr/T/jsii-kernel-hDzf8X/node_modules/@aws-cdk/core/lib/util.js:73:9)
at Object.ignoreEmpty (/private/var/folders/gd/gpl89dgn5f7c8mzqx3dc8hzh0000gr/T/jsii-kernel-hDzf8X/node_modules/@aws-cdk/core/lib/util.js:33:12)
at CfnTrigger._toCloudFormation (/private/var/folders/gd/gpl89dgn5f7c8mzqx3dc8hzh0000gr/T/jsii-kernel-hDzf8X/node_modules/@aws-cdk/core/lib/cfn-resource.js:237:44)
at /private/var/folders/gd/gpl89dgn5f7c8mzqx3dc8hzh0000gr/T/jsii-kernel-hDzf8X/node_modules/@aws-cdk/core/lib/private/refs.js:100:74
at Object.findTokens (/private/var/folders/gd/gpl89dgn5f7c8mzqx3dc8hzh0000gr/T/jsii-kernel-hDzf8X/node_modules/@aws-cdk/core/lib/private/resolve.js:128:13)
at findAllReferences (/private/var/folders/gd/gpl89dgn5f7c8mzqx3dc8hzh0000gr/T/jsii-kernel-hDzf8X/node_modules/@aws-cdk/core/lib/private/refs.js:100:38)
at Object.resolveReferences (/private/var/folders/gd/gpl89dgn5f7c8mzqx3dc8hzh0000gr/T/jsii-kernel-hDzf8X/node_modules/@aws-cdk/core/lib/private/refs.js:23:19)
at Object.prepareApp (/private/var/folders/gd/gpl89dgn5f7c8mzqx3dc8hzh0000gr/T/jsii-kernel-hDzf8X/node_modules/@aws-cdk/core/lib/private/prepare-app.js:34:16)
at Object.synthesize (/private/var/folders/gd/gpl89dgn5f7c8mzqx3dc8hzh0000gr/T/jsii-kernel-hDzf8X/node_modules/@aws-cdk/core/lib/private/synthesis.js:18:19)
at App.synth (/private/var/folders/gd/gpl89dgn5f7c8mzqx3dc8hzh0000gr/T/jsii-kernel-hDzf8X/node_modules/@aws-cdk/core/lib/stage.js:78:41)
at /Users/honarmand/xyz/xyz-data-lake/data-lake-etl-infra/venv/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:7756:51
at Kernel._wrapSandboxCode (/Users/honarmand/xyz/xyz-data-lake/data-lake-etl-infra/venv/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:8405:20)
at /Users/honarmand/xyz/xyz-data-lake/data-lake-etl-infra/venv/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:7756:25
at Kernel._ensureSync (/Users/honarmand/xyz/xyz-data-lake/data-lake-etl-infra/venv/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:8381:20)
at Kernel.invoke (/Users/honarmand/xyz/xyz-data-lake/data-lake-etl-infra/venv/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:7755:26)
at KernelHost.processRequest (/Users/
我不确定为什么会这样或如何解决。我将不胜感激。这是我的代码：
app.py
from aws_cdk import core
from etl_stack_2 import EtlStack
app = core.App()
environments = ["dev","staging","pre-production","production"]
for env in environments:
EtlStack(app,id=f"data-lake-etl-infra-{env}",env=env)
app.synth()
etl_stack_2.py
from aws_cdk import (
aws_s3 as s3,core
)
import yaml
from pathlib import Path
import os
from partner import Partner
from workflows.order_workflow import OrderWorkflow
class EtlStack(core.Stack):
def __init__(self,scope: core.Construct,id: str,env: str,**kwargs) -> None:
super().__init__(scope,id=id,**kwargs)
assets_bucket = s3.Bucket.from_bucket_name(self,'assets_bucket',"bucket_name")
current_dir = os.path.dirname(os.path.abspath(__file__))
scripts_root = str(Path(current_dir,"../..","scripts").resolve())
job_role = f"role-service-glue-{env}"
partner = Partner(self,"id-123",env=env,assets_bucket=assets_bucket,scripts_root=scripts_root,job_role=job_role
)
OrderWorkflow(
scope=self,id=f"order_workflow-{env}",partner_job=partner.job # this is where I pass the job property to OrderWorkflow
)
order_workflow.py
from aws_cdk import (
aws_glue as glue,core
)
class OrderWorkflow(core.Construct):
def __init__(self,*,partner_job: glue.CfnJob,**kwargs):
super().__init__(scope,id,**kwargs)
order_workflow = glue.CfnWorkflow(
scope=self,id=f"glue-order_workflow-{env}"
)
start_trigger = glue.CfnTrigger(
scope=self,id=f"order_workflow_start_trigger-{env}",actions=[partner_job],# If I pass [] to actions instead it works fine
type="SCHEDULED",description="this schedules trigger starts the order workflow",name="Order Workflow start",schedule="cron(15 * * * ? *)",workflow_name=order_workflow.name
)
解决方法
在OrderWorkflow中，我将[glue.CfnTrigger.ActionProperty(job_name=partner_job.ref)]传递给操作而不是[partner_job]，这解决了问题。因此，start_trigger如下所示：
start_trigger = glue.CfnTrigger(
scope=self,id=f"order_workflow_start_trigger-{env}",actions=[glue.CfnTrigger.ActionProperty(job_name=partner_job.ref)],type="SCHEDULED",description="this schedules trigger starts the order workflow",name="Order Workflow start",schedule="cron(15 * * * ? *)",workflow_name=order_workflow.name
)
如果您查看CfnTrigger上的CDK文档，则action属性必须是一个ActionProperty：https://docs.aws.amazon.com/cdk/api/latest/docs/@aws-cdk_aws-glue.CfnTrigger.html#construct-props
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