JSON Parameter Parsing Error

Updated on 2023-11-28 GMT+08:00

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Symptoms

JSON parameters are not replaced or parsed as expected during the Ansible application deployment.

During the Ansible application deployment, the template module can be used to replace a text file. If the parameter values in the file are in JSON or JSON array format, the character u will be added in front of the keys and values after parsing. For example:

Input parameters: {"key":"jsonkey","value":"jsonvalue"}
Parameters after replacement: {u'value': u'jsonvalue', u'key': u'jsonkey'}

Solution

Enclose JSON parameters with single quotation marks. The template module will forcibly parse the parameters in character string mode to ensure correct replacement. The following is an example:

Input parameters: '{"key":"jsonkey","value":"jsonvalue"}'
Parameters after replacement: {"key":"jsonkey","value":"jsonvalue"}

Parent topic: Ansible

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