Failed to push

Failed to update your image with promote event, could not tag image

You have a push step in your pipeline that fails with the following error:

[SYSTEM] Error: Failed to push image docker.io/example/my-image:1.0.0; caused by Error: Failed to update your image with promote event; caused by Error: NotFoundError: could not tag image 

Problem description

This issue occurs because of a race condition when trying to push to a docker registry the same image at the same time. If there are 2 builds for a pipeline triggered at the same time for the same commit one of them will pass and the other will fail.

The solution

It is not possible to push the same image at the same time to the same registry. Your pipeline configuration has probably multiple triggers (such as a commit and tag) that trigger the pipeline twice.

Review the trigger setup according to the pipeline logic and verify that is is triggered only once when an event happens.