Upgrade Redis, Postgresql, and Maridb to latest OCI Bitnami helm chart versions

[jessebot]

Pull Request

Description of the change

• Upgrades all bitnami subcharts to the latest major versions at time of commit:
  • Postgresql appVersion will be bumped from 14.4.x to 15.3.0
  • MariaDB appVersion will be bumped from 10.6.x to 10.11.4
  • Redis appVersion will be bumped from 6.2.x to 7.0.12
• Updates to new preferred OCI-based container registry for installations ^{1 2 3}

Benefits

This puts us at the latest versions, so we aren't deploying a major version out of date. I haven't checked, but there may also be security patches that we would benefit from here.

Possible drawbacks

⚠️ Users already having deployed the chart using our bundled postgresql bitnami sub-chart will need to upgrade their databases to stay current according to Bitnami's postgresql chart README . Official upgrade instructions can be found here.

Applicable issues

Don't think there's any right now.

Additional information

Bumping major version of chart to account for major version bump of subcharts, but we can also do a minor version here as all of these are optional? Open to feedback on which number to bump.

Upgrade of Redis should not incur any extra work according to their README docs here.

MariaDB doesn't have a major appVersion bump so there's no upgrade instructions listed.

Checklist

• DCO has been signed off on the commit.
• Chart version bumped in Chart.yaml according to semver.
• (optional) Variables are documented in the README.md

[jessebot]

Suggested change

	version: 4.0.0
	version: 3.6.0

This can also be 3.6.0 if we only want to bump a minor version of this chart.

[tvories]

I would say that since the subchart updates are major, I'd make it a major release.

[jessebot]

sounds good to me! I'll keep it as is. I've also added some basic docs for upgrading nextcloud itself to #419 and in this one, after I test the upgrade of postgres on my end, I'll add some notes for that as well if anything goes weird and then we can probably merge this after #419.

[tvories]

Looks good

[nerocide]

As new bitnami charts now support arm64, my cluster would really benefit this merge.

Thank you for your work @jessebot

[jessebot]

Sorry for the delay! Longhorn failed for me recently (long story, but they pushed up a breaking change that had cascading effects and took out my whole home lab and backups D:) I've been rebuilding my home lab (and recovering backups), and should probably be done in another day. In the meantime, if others have tested upgrade this, I'm happy to see it merged 💙

[ibcht]

This version installs seamlessly on my RPi4, with prepackaged mariadb. Not an upgrade though, as this looks like the first ARM64 compatible release, I only proceed to a fresh install.

[nerocide]

Just tried a fresh install on 4*bananapi CM4(arm64) with external postgres db, works perfectly👍

[jessebot]

@provokateurin I still haven't tested the upgrade, but since two others have tested fresh installs, do we want to merge this anyway? Unfortunately my homelab is still out of commission due to some other issues in my current stack (dealing with some issues lower in the stack with secrets management), so it'll probably be at least another few days till I can start testing nextcloud via helm specifically again.

We could just make sure the release notes have a link to the docs for upgrades for postgresql and to please report any other steps you had to do directly to us so we can inform others? I feel bad not merging this :<

[provokateurin]

Sounds like a good plan