Remove Postgres 10 and support for older debian/postgis versions

[BryanQuigley]

Postgres 10 is EOL (https://www.postgresql.org/support/versioning/) This also drops mention of postgis 2.5 and older debian versions.

[phillipross]

@BryanQuigley thanks for the contribution!

@ImreSamu i'm inclined to push through the removal of v10+v2.5 since they are EOL and the existing dockerhub images for those versions won't be removed. Do you see any problem with this?

I'll also ping the postgis steering committee to see if they have any compelling reasons not to move forward with removing 🙂

[ImreSamu]

@BryanQuigley : Thank you!

• Please also update the README.md file, as I see this is not updated.

  • update the "date" in the "Versions ( 2022-11-14 )"
  • remove the 2 docker images ( 10-3.2 alpine and debian )
  • Search for the other: '10' ...

• (recommended) Test the make update and push the changes.

  • in theory, only the 14-master/Dockerfile and 15-master/Dockerfile has been changed.

@phillipross:

Do you see any problem with this?

• The latest bullseye updated ~2 days ago ( https://hub.docker.com/_/debian/tags?page=1&name=bulls )
• The Docker Postgres upstream removed the PG10 ~2 days ago: https://github.com/docker-library/postgres/pull/1011
  • so no security fixes; or any other updates in the base postgres:10 docker images.
• The latest postgis/postgis:10-3.2 updated ~ 1 days ago :heavy_check_mark: ( https://hub.docker.com/r/postgis/postgis/tags?page=1&name=10-3.2 )
• in this case we can remove it now ..
  • but in similar cases, it is worth waiting +1/+2 weeks ( ~ next scheduled Monday generation )

light proposal/suggestion:

Please keep the alpine 2.5 generation ( in the Dockerfile.alpine.template ) for ~ +3 months / or the next significant alpine template refactoring

• Reason: (maybe) it is useful for creating special "local" test images for the fresh PostGIS 2.5.9 ( released: Nov 12, 2022 )
• But if someone really wants to refactor it, I won't stop them.

[BryanQuigley]

Thanks! Updated README and ran make update.sh but kept that as a separate commit.

Did not notice that alpine still had some 2.5 support, I'm in no rush to remove it :).

[ImreSamu]

@BryanQuigley : Thank you! Looks good to me.