The docker images that koha-testing-docker uses for Elastic were manually built until yesterday.
From now on, their build is handled through CI on this new Gitlab project:
https://gitlab.com/koha-community/docker/koha-elasticsearch-icu Official base elastic images are not tagged like 5.x, but with specific versions like in 5.6.1. So if you feel some of the versions we handle has been left behind (5.x was 5.5.1 until yesterday) you should send a pull request for the specific branch or file am issue on the mentioned gitlab project. This also applies for other tweaks this images might need, as disabling x-pack or other 'features'. Pull requests and suggestions are welcome :-D Best regards -- Tomás Cohen Arazi Theke Solutions (http://theke.io) ✆ +54 9351 3513384 GPG: B2F3C15F