Remove postgres_latest as image tag

[MonkeyCanCode]

Based from both #2036 and #1957, we will be removing postgres_latest as image tag and use latest as image tag instead.

[adutra]

Thanks @MonkeyCanCode!

[snazy]

Wait a sec ...

[snazy]

Nope, all good. I see you removed the -SNAPSHOT reference.

For posterity: as an Apache project we have to direct users to official releases, never to snapshots, nightlies and similar.
Since you're referring to the Docker repo for official releases, that's fine.

[MonkeyCanCode]

Nope, all good. I see you removed the -SNAPSHOT reference.

For posterity: as an Apache project we have to direct users to official releases, never to snapshots, nightlies and similar.
Since you're referring to the Docker repo for official releases, that's fine.

Oh, that is good to know. In that case, we will need to change the value files in the helm right? That is referring to the snapshot one @adutra

[adutra]

Oh, that is good to know. In that case, we will need to change the value files in the helm right? That is referring to the snapshot one @adutra

I guess you are right... we should use tag: latest instead of tag: "1.1.0-incubating-SNAPSHOT".

I don't know why #1957 included a -SNAPSHOT tag in the chart... oddly enough, the tag exists, but it doesn't align with our recent discussions about nightly images in #1593. @flyrain do you remember the rationale? I think we need to revisit this, imho the safest choice is to go with latest.

[adutra]

OK I finally found the discussion I had with @flyrain about image tags:

#1944 (comment)

Yufei was advocating for specific tags in case users want to downgrade the helm chart.

I confess I'm now thinking that it's too much hassle keeping specific Docker image versions in the Helm chart compared to the (limited) benefits. Besides, if we move the Helm chart out of this repo, as it was proposed, then it probably doesn't make sense at all to use specific versions in image.tag.

[adutra]

I'm fine with this change, but let's wait for @flyrain to chime in.