image pgautoupgrade/pgautoupgrade:15-alpine upgrades database to postgres 16

[mx-bernhard]

I thought that pgautoupgrade/pgautoupgrade:15-alpine was just ensuring that after the upgrade the database version was 15 and not 16 and pgautoupgrade/pgautoupgrade:16-alpine was doing the same but with database version 16 as a target. If I change PGTARGET environment variable to 15 before starting the container with image pgautoupgrade/pgautoupgrade:15-alpine, no upgrade is started. This is either a bug or a missing in the documentation (to me, it looks like the former). Starting pgautoupgrade/pgautoupgrade:15-alpine like this yields 16 and not 15:

docker run -it --rm pgautoupgrade/pgautoupgrade:15-alpine /bin/bash                                                                                 127 ↵  ⚡  10313  11:32:04
************************************
PostgreSQL data directory: /var/lib/postgresql/data
************************************
7814a82c00a5:/var/lib/postgresql# echo $PGTARGET
16
7814a82c00a5:/var/lib/postgresql#

[justinclift]

Oh crap. Yeah, 15-alpine is supposed to upgrade stuff to 15, and not past that.

Definitely a bug. We greatly changed the build process for images over the last 2 days in order to enable ARM64. Looks like it's not quite right. ☹️

@andyundso Are you ok to look into this?

[andyundso]

very sorry about that, was a mistake by me in the pipeline configuration. fixed with #29.

[justinclift]

Thanks @andyundso. 😄

Super sorry about that @mx-bernhard. 😦

[andyundso]

fixed images are now available on Docker Hub.

$ docker pull pgautoupgrade/pgautoupgrade:15-alpine
$ docker run -d -it -e POSTGRES_PASSWORD=password --rm pgautoupgrade/pgautoupgrade:15-alpine
$ docker exec -it jovial_hoover psql -U postgres
psql (15.6)
Type "help" for help.

postgres=# exit

Really sorry about this mistake, I should have checked the Docker layers on Docker Hub and I would have seen the issue beforehand.

[mx-bernhard]

Nothing bad happened for me, I have backups, as one should. Also, I had time to investigate today. 👍 for fixing so fast.