Use ImageSpec as default task image about flyte HOT 1 OPEN

To address the issue of task failure in non-fast register mode due to the absence of user code in the default image, the proposal to change the default image to an ImageSpec object is a viable solution. This change would ensure that Flytekit builds the image at compile time and includes the user code, thus preventing runtime failures.

However, this approach requires modifications to the Flytekit configuration to use ImageSpec as the default for task images. Currently, Flytekit does not automatically build images unless explicitly specified by the user through an ImageSpec. Implementing this change would involve altering the default behavior of image handling in Flytekit, potentially affecting all users.

An alternative, as mentioned, is to raise an exception at compile time when container_name is None in non-fast mode. This would enforce that users specify their container configurations explicitly, ensuring that the necessary code is included in the image used for execution.

Both solutions have implications for Flytekit's usability and user experience. The first approach simplifies the user workflow by automating image builds but increases build times and complexity. The second approach places more responsibility on the user to manage their image configurations but maintains current performance and behavior.

Would you like more detailed information on how to implement these changes in Flytekit, or further discussion on the potential impacts of each solution?

Sources:

• ImageSpec in Flytekit
• ImageSpec Example

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