aws-cloudformation
AWS::Scheduler::ScheduleGroup - Cannot create: Unable to retrieve Arn attribute for AWS::Scheduler::Schedule
Name of the resource
AWS::Scheduler::ScheduleGroup
Resource Name
AWS::Scheduler::ScheduleGroup
Issue Description
Cannot create a stack which contains a AWS::Scheduler::ScheduleGroup and a AWS::Scheduler::Schedule.
Expected Behavior
Stack creates successfully.
Observed Behavior
Stack creation fails with the following error message on stack-level..
Unable to retrieve Arn attribute for AWS::Scheduler::Schedule, with error message Resource of type 'AWS::Scheduler::Schedule' with identifier 'SchedulerStack-MyCfnSchedule-XXXXXXX' was not found.. Rollback requested by user.
Test Cases
CDK
from aws_cdk import (
# Duration,
Stack, CfnOutput,
aws_scheduler as scheduler, aws_lambda as lambda_, RemovalPolicy,
)
from aws_cdk.aws_iam import ManagedPolicy, Role, ServicePrincipal
from aws_cdk.aws_lambda import Runtime, Code
from aws_cdk.aws_scheduler import CfnSchedule
from constructs import Construct
class SchedulerStack(Stack):
def __init__(self, scope: Construct, construct_id: str, **kwargs) -> None:
super().__init__(scope, construct_id, **kwargs)
managed_policy_arn = \
ManagedPolicy.from_aws_managed_policy_name('AmazonEventBridgeSchedulerFullAccess')
schedule_role = Role(self, "Role",
assumed_by=ServicePrincipal("scheduler.amazonaws.com"),
# custom description if desired
description="This is a custom role...",
managed_policies=[managed_policy_arn],
)
schedule_role.apply_removal_policy(RemovalPolicy.DESTROY)
fn = lambda_.Function(self, "lambda_function",
runtime=Runtime.NODEJS_18_X,
handler="index.handler",
code=Code.from_inline('exports.handler = handler.toString() //'))
schedule_group = scheduler.CfnScheduleGroup(self, "MyScheduleGroup",
name="GroupOfSchedules", )
CfnOutput(self, 'ScheduleGroupName',
description='The Name attribute of the schedule group.',
value=str(schedule_group.name)
)
CfnOutput(self, 'ScheduleGroupArn',
description='The ARN of the schedule group.',
value=str(schedule_group.attr_arn)
)
self.schedule = scheduler.CfnSchedule(self, "MyCfnSchedule",
# name='theschedule',
group_name=schedule_group.name,
flexible_time_window=scheduler.CfnSchedule.FlexibleTimeWindowProperty(
mode="OFF",
),
state='ENABLED',
schedule_expression="rate(5 minutes)",
schedule_expression_timezone="Europe/Berlin",
target=CfnSchedule.TargetProperty(
arn=fn.function_arn,
role_arn=schedule_role.role_arn,
),
)
CfnOutput(self, 'ScheduleName',
description='The Name attribute of the schedule.',
value=str(self.schedule.ref)
)
CfnOutput(self, 'ScheduleArn',
description='The ARN of the schedule.',
value=str(self.schedule.attr_arn)
)
CFN
Resources:
Role1ABCC5F0:
Type: AWS::IAM::Role
Properties:
AssumeRolePolicyDocument:
Statement:
- Action: sts:AssumeRole
Effect: Allow
Principal:
Service: scheduler.amazonaws.com
Version: 2012-10-17
Description: This is a custom role...
ManagedPolicyArns:
- Fn::Join:
- ''
- - 'arn:'
- Ref: AWS::Partition
- :iam::aws:policy/AmazonEventBridgeSchedulerFullAccess
UpdateReplacePolicy: Delete
DeletionPolicy: Delete
lambdafunctionServiceRole85538ADB:
Type: AWS::IAM::Role
Properties:
AssumeRolePolicyDocument:
Statement:
- Action: sts:AssumeRole
Effect: Allow
Principal:
Service: lambda.amazonaws.com
Version: 2012-10-17
ManagedPolicyArns:
- Fn::Join:
- ''
- - 'arn:'
- Ref: AWS::Partition
- :iam::aws:policy/service-role/AWSLambdaBasicExecutionRole
lambdafunction45C982D3:
Type: AWS::Lambda::Function
Properties:
Code:
ZipFile: exports.handler = handler.toString() //
Role:
Fn::GetAtt:
- lambdafunctionServiceRole85538ADB
- Arn
Handler: index.handler
Runtime: nodejs18.x
DependsOn:
- lambdafunctionServiceRole85538ADB
MyScheduleGroup:
Type: AWS::Scheduler::ScheduleGroup
Properties:
Name: GroupOfSchedules
MyCfnSchedule:
Type: AWS::Scheduler::Schedule
Properties:
FlexibleTimeWindow:
Mode: OFF
ScheduleExpression: rate(5 minutes)
Target:
Arn:
Fn::GetAtt:
- lambdafunction45C982D3
- Arn
RoleArn:
Fn::GetAtt:
- Role1ABCC5F0
- Arn
GroupName: GroupOfSchedules
ScheduleExpressionTimezone: Europe/Berlin
State: ENABLED
Outputs:
ScheduleGroupName:
Description: The Name attribute of the schedule group.
Value: GroupOfSchedules
ScheduleName:
Description: The Name attribute of the schedule.
Value:
Ref: MyCfnSchedule
ScheduleArn:
Description: The ARN of the schedule.
Value:
Fn::GetAtt:
- MyCfnSchedule
- Arn
Other Details
No response
Interestingly when attempting to get info on an already created Schedule using get-schedule, it fails to find the it (ResourceNotFound). If a Schedule is associated to a ScheduleGroup, the --group-name flag must be provided.
It would be nice to have more explicit feedback to know why the existing resource cannot be found.
I am facing this issue with the following CF setup. Do we have any resolve for this?
{
"AWSTemplateFormatVersion": "2010-09-09",
"Description": "CloudFormation template to create an Event Bridge",
"Parameters": {
"EventBridgeRoleArn": {
"Type": "String",
"Description": "IAM Role for event bridge"
},
"StepFunctionArn": {
"Type": "String",
"Description": "Step Function Arn"
}
},
"Resources": {
"DailyJobScheduleGroup": {
"Type": "AWS::Scheduler::ScheduleGroup",
"Properties": {
"Name": "daily-job-schedule-group-cf"
}
},
"DailyBatchJobSchedule": {
"Type": "AWS::Scheduler::Schedule",
"DependsOn": [
"DailyJobScheduleGroup"
],
"Properties": {
"Name": "batch-jobs-scheduler-test-cf",
"Description": "Execute batch jobs daily",
"State": "DISABLED",
"ScheduleExpression": "cron(0 0 * * ? *)",
"FlexibleTimeWindow": {
"Mode": "OFF"
},
"Target": {
"Arn": {
"Ref": "StepFunctionArn"
},
"RoleArn": {
"Ref": "EventBridgeRoleArn"
},
"RetryPolicy": {
"MaximumEventAgeInSeconds": 86400,
"MaximumRetryAttempts": 0
}
}
}
}
},
"Outputs": {
"DailyEventBridgeArn": {
"Description": "ARN of the created daily event bridge",
"Value": {
"Fn::GetAtt": [
"DailyBatchJobSchedule",
"Arn"
]
}
}
}
}
I am also facing this issue. Cannot get Scheduler ARN since I add a GroupName property to my scheduler
Found this issue while troubleshooting the same problem. It's been over a year since it's been raised, bummer no response from anyone at AWS as it's clearly a real problem.
I found same the issue with AWS CDK TypeScript Resource handler returned message: "Resource of type 'AWS::Scheduler::Schedule' with identifier 'id' was not found." (RequestToken: id, HandlerErrorCode: NotFound)
Same issue for me - very similar code to the OP, creating a CfnSchedule within a CfnScheduleGroup via CDK Python, but in my case I am not trying to export the schedule ARN.
This forum post sounds like it may be related: https://repost.aws/en/questions/QUCW6MgVvrQIOGyqvVuH1Gkw/fn-getatt-arn-fails-on-a-aws-scheduler-schedule
I was able to deploy the stack successfully many times
Made some unrelated changes today and now it fails with this error:
analyticsng-web-dev-eu-backend | 24/34 | 11:07:59 | UPDATE_FAILED | AWS::Scheduler::Schedule | analyticsng-web-dev-eu/backend/Incremental ETL Schedule (IncrementalETLSchedule) Resource handler returned message: "Resource of type 'AWS::Scheduler::Schedule' with identifier 'analyticsng-web-dev-eu-back-IncrementalETLSchedule-1DV7HBN4BQQNT' was not found." (RequestToken: d69de774-cad2-13ee-11e3-25c23494aae7, HandlerErrorCode: NotFound)
However in the web console the existing schedule of exactly that name does exist (as does the schedule group):
As usual with CDK/CF stuff, there's effectively no way for me to debug this mystifying error on my side. Meanwhile it's not very clear if problem is in CF or CDK, so I don't have much faith either team will ever look into it.
It's also unclear to me from the README whether this repo is the right place to report CF bugs? But if not then where else?
