Docker base image property

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Base Docker image for this Dockerfile


This is the base image on which the new Docker image will be created.

The syntax is [<Docker Registry>]<base image name>[:<Tag>]


  • Docker Registry is empty by default and usually corresponds to '' . Write 'docker info' in a command prompt to know which Registry is the default.
  • Docker image name is the image name itself (e.g. 'tomcat')
  • Tag is the specific docker tag assigned to that image (e.g. '8.5-jre8-alpine')

Reference: To find public docker images of tomcat, for example, refer to


This property applies only at design-time.


This property is available since GeneXus 15 Upgrade 8.

See Also