Following this document used file transformation task in Azure Devops to substitute variables in json and xml files:
Video Explanation
# File transform
# Replace tokens with variable values in XML or JSON configuration files
- task: FileTransform@1
inputs:
#folderPath: $(System.DefaultWorkingDirectory)/**/*.zip
#enableXmlTransform: # Optional
#xmlTransformationRules: -transform **\*.Release.config -xml** \*.config-transform **\*.$(Environment.Name).config -xml**\*.config # Optional
#fileType: # Optional. Options: xml, json
#targetFiles: # Optional
When using this you will get following error message: changes already present message.
Got the changes already present message when directly targeting the source folder. The idea is that the build package is edited by this task, so configuration is updated before test or deployment.
This worked for me (note the **/):
steps:
task: FileTransform@1
displayName: File Transform: appsettings.json
inputs:
folderPath: $(System.DefaultWorkingDirectory)
fileType: json
targetFiles: **/appsettings.json
To prevent another error that will be experienced if doing variable substitution for non-windows app : Cannot perform XML transformations on a non-Windows platform
you need to specify an empty xmlTransformationRules
. This works against a Linux app service:
task: FileTransform@2
inputs:
folderPath: $(Pipeline.Workspace)/path-to/my-package.zip
jsonTargetFiles: appsettings.json
xmlTransformationRules: '' # disabled
Referred this issue in GitHub repo hope it helps someone:
https://github.com/MicrosoftDocs/azure-devops-docs/issues/6563
Refer videos in my channel for live explanations.
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