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aws-cloudformation / cloudformation-resource-schema

The CloudFormation Resource Schema defines the shape and semantic for resources provisioned by CloudFormation. It is used by provider developers using the CloudFormation RPDK.
Apache License 2.0
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Validation: Resource property cannot set readOnly properties #102

Open wbingli opened 4 years ago

wbingli commented 4 years ago

Currently, if set a value for a readOnlyProperties, this will be silently ignored. We should have validation to enforce this validation.

PatMyron commented 3 years ago

catching some of these in cfn validate because readOnlyProperties should never overlap with writeOnlyProperties or createOnlyProperties or required: https://github.com/aws-cloudformation/cloudformation-cli/pull/663 https://github.com/aws-cloudformation/cloudformation-cli/pull/668

still not sure why CloudFormation diverged from readOnly and writeOnly as defined in JSON schema itself