Unresolved resource dependencies [DefaultSchedule] in the Resources block of the template

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Unresolved resource dependencies [DefaultSchedule] in the Resources block of the template



I am working with the cloudformation script to create AWS Data Pipeline. I have created the script according to the documentation but I am facing 1 error i.e.



Template validation error: Template format error: Unresolved resource
dependencies [DefaultSchedule] in the Resources block of the template



Here is the resources part of my script:


Resources:
DataPipelineForS3Backup:
Type: AWS::DataPipeline::Pipeline
Properties:
Name:
Ref: S3BackupDataPipeline
Description:
Ref: S3BackupDataPipeline
Activate: 'true'
ParameterObjects:
- Id: myAwsCliCommand
Attributes:
- Key: description
StringValue: Dp command to run
- Key: type
StringValue: String
ParameterValues:
- Id: myAwsCliCommand
StringValue:
Ref: AwsCliCommand
PipelineObjects:
- Id: DefaultSchedule
Name: Every 1 day
Fields:
- Key: type
StringValue: Schedule
- Key: period
StringValue: 1 Day
- Key: startDateTime
StringValue: 2018-08-08T19:00:00
- Id: Default
Name: Default
Fields:
- Key: failureAndRerunMode
StringValue: CASCADE
- Key: type
StringValue: Default
- Key: resourceRole
StringValue:
Ref: S3BackupResourceRole
- Key: pipelineLogUri
StringValue:
Ref: S3BackupDpLogUri
- Key: role
StringValue:
Ref: S3BackupDpRole
- Key: scheduleType
StringValue: cron
- Key: schedule
StringValue:
Ref: DefaultSchedule



Can anyone tell me what's going on with the script? Thanks




1 Answer
1



First, writing your script in YAML you should be very carefull to the indentation to avoid errors. It should be like :


Resources:
DataPipelineForS3Backup:
Type: AWS::DataPipeline::Pipeline
Properties:
Name:
...



Also, as I understand you are trying to get the reference of one of the PipelineObjects. To do so, unstead of Ref: DefaultSchedule you should use RefValue: DefaultSchedule


Ref: DefaultSchedule


RefValue: DefaultSchedule



Please see the example in documentation : https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-datapipeline-pipeline.html#w2ab2c21c10d332c13






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