news: GRASS GIS docker images moved to OSGeo org (#383)

* news: GRASS GIS docker images moved to OSGeo org

GRASS GIS docker images moved from mundialis to OSGeo dockerhub organization

Co-authored-by: Carmen Tawalika <mmacata@users.noreply.github.com>

content/news/2023_08_27_GRASS_GIS_docker_organization.md

@@ -0,0 +1,74 @@
+---
+title: "New Docker images for GRASS GIS"
+date: 2023-08-27T11:42:00+03:00
+layout: "news"
+author: GRASS Development Team
+---
+
+### Moving GRASS GIS Docker Images to the OSGeo Repository
+
+In the field of open source software development and deployment, the
+accessibility and maintenance of resources is of paramount importance.
+To this end, there has been a major change in the repository structure
+for the GRASS GIS Docker images.
+
+<a href="https://hub.docker.com/r/osgeo/grass-gis/">
+  <img src="https://grass.osgeo.org/images/logos/grass-Docker.jpg"
+   alt="GRASS GIS Docker images"
+   title="GRASS GIS Docker images"
+   width="20%" style="float:right;padding-left:25px;padding-top:5px">
+</a>
+
+In the past years, these Docker images have been maintained and hosted under
+the mundialis organisation's repository. The company
+[mundialis](https://www.mundialis.de) has played a crucial role in providing
+and maintaining these images, ensuring their availability and stability for
+the wider GIS community. The GRASS GIS development community extends
+its sincere appreciation to mundialis for their technical expertise and
+consistent support over the years.
+
+In a strategic move, the **GRASS GIS Docker images have now been shifted**
+to the OSGeo organisation's repository on Docker Hub. They can be accessed
+under OSGeo GRASS GIS on Docker Hub:
+
+[https://hub.docker.com/r/osgeo/grass-gis/](https://hub.docker.com/r/osgeo/grass-gis/tags?page=1&ordering=-name)
+
+This migration is not just a change of repository location. The move to
+the OSGeo repository has been accompanied by a systematic clean-up and
+reorganisation of the tags associated with the GRASS GIS Docker images.
+This restructuring is intended to improve clarity, streamline
+versioning and optimise the user experience when selecting appropriate
+image tags for deployment.
+
+**Migrating to the new structure**
+
+Now there are four different types of tags, while `{{ os }}` can be replaced
+with "alpine", "debian" or "ubuntu" (and for more recent versions also with
+"ubuntu_wxgui"):
+
+- `latest` for latest release (at this time 8.3) and with ubuntu operating system
+- `current-{{ os }}` for current releasebranch (at this time 8.3), e.g `current-ubuntu`
+- `{{ branch }}-{{ os }}` for all configured branches, e.g. `releasebranch_8_3-alpine`,  `main-debian`
+- `{{ tag }}-{{ os }}` for all published releases. e.g. `8.3.0-alpine`
+
+While naming of branches and tags is still the same, it adds `current-{{ os }}`
+and abandons deprecated naming style `latest-{{ os }}` and `stable-{{ os }}`.
+Also content of `latest` tag was changed from `main` branch to latest release.
+
+If `mundialis/grass-py3-pdal:latest-{{ os }}` was used containing the latest
+development version, it should now be replaced with `osgeo/grass-gis:main-{{ os }}`.
+For `mundialis/grass-py3-pdal:stable-{{ os }}` (which was formerly build upon
+`releasebranch_7_8`) a switch to the current stable releasebranch
+`osgeo/grass-gis:current-{{ os }}` is recommended or the usage of a specific
+releasebranch `releasebranch_8_3-{{ os }}`. Old GRASS GIS Docker images with
+version 7.8 can still be found at mundialis/grass-py3-pdal.
+
+In summary, as we moved the repository from mundialis to the OSGeo
+organisation, we took the opportunity to clean up the Docker tags.
+
+Related docker build configuration changes can be found here:
+
+- [docker: Update dockerhub organization](https://github.com/OSGeo/grass/pull/3001)
+- [docker: CI update and simplification](https://github.com/OSGeo/grass/pull/3075)
+
+_Carmen Tawalika (mundialis), Markus Neteler and The GRASS Dev Team_