Rolling Docker Image Not Updated

[SteveMacenski]

There was a sync on the 6th https://discourse.ros.org/t/new-packages-for-ros-2-rolling-ridley-2021-08-06/21737 but the last update in dockerhub was 15 days ago https://hub.docker.com/layers/ros/library/ros/rolling-ros-core/images/sha256-c2f8c1fbe1b3dc3d98c532d7797036db90c409e648e473cc21cfba41bb97c834?context=explore

Needed for PRs in Nav2:

• Reduce costmap_2d_ros nodes ros-navigation/navigation2#2489
• Reduce amcl_node nodes ros-navigation/navigation2#2483

[mikaelarguedas]

updates in dockerhub happen only if the base image (ubuntu) is updated or if the packages listed in the image (ros-core, ros-base etc) get a new version released.
As this sync didnt imply any new release of the metapackages the image cannot be updated.
An attempt to fix the issue was made in osrf/docker_templates#90 but was rejected by the docker librarians

[SteveMacenski]

Ah ok. Any hope for manual updates when we do syncs or has that already been discussed and passed on?

[mikaelarguedas]

Any hope for manual updates when we do syncs or has that already been discussed and passed on?

So far we didnt find any way to automatically or manually update official images during a sync in a future-proof way while keeping the same dockerfiles for all architectures and not rewriting our entire image generation process.

You can find leads that have been explored in the various PRs and tickets referencing the original issue #112