Dimitris Xenakis

`IP` column of `tokens` table unable to hold the IPv6/v4 pair entry during authentication.

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### Description I noticed a problem related to the `ip` column of the `tokens` table in my deployment. Since it is of type `varchar(39)`, I assume it is designed to...

Testing: Fix flaky tests

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### Description Although there are already couple issues related to our problem with flaky tests such as: - [Flaky tests not being rerun #8255](https://github.com/rucio/rucio/issues/8255) - [Tag all the intermittently failing...

Database: Support JSON natively in Rucio; Fixes rucio #7648

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**Draft Notice:** This works but kept frozen until we merge #8207 and #8212. --- Handles #7648 In this PR, I have already included A) https://github.com/rucio/rucio/pull/8207 and B) https://github.com/rucio/rucio/pull/8212 which need...

Testing: Configure Ruff to reflect the replaced Flake8; rucio#8268

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Fixes rucio#8268 Fixes rucio#8263

Core & Internals: Enhance dev/test logging; Fixes rucio#8208

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Handles #8208 This PR mainly enhances dev/test observability while keeping production defaults untouched. Some points: - The logging helper now lets you choose the destination via config or environment variables,...

Tooling: Replace Flake8 with Ruff and update related configurations; Fixes rucio#8264

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Handles rucio#8264 Since rule `ANN101` is no longer considered (and ignoring it has no effect), I removed it. With this change, several # NOQA become obsolete so we can remove...

Tooling: Update `flake8-type-checking` code to use 'TC' instead of 'TCH' in `pyproject.toml`; rucio#8266

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Handles rucio#8266

Core & Internals: Add centralized startup diagnostics; Fixes rucio#8197

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Handles rucio#8197 I have placed at the top of `startup_checks.py` a documentation/guide about this framework and its use. Nevertheless, I am placing this also here to understand what this does....

Database: Refactor all alembic migrations to make them idempotent; Fix rucio#8145

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This PR is a fix for rucio#8145, which will then also close rucio#7737 (making our tests idempotent). Because there is a strong relationship between #8145 and #8078 (another sub-issue), I...

### Description This parent issue shall be used to host all sub-issues which will lead to the new mechanism supporting full-structure Metadata. Any non-draft PR linked here should be ready...