Keep the last few images, and record delete-all-spam as verified live #66

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opened 2026-08-26 19:15:49 +00:00 by jcoffey-dev · 0 comments

jcoffey-dev commented

2026-08-26 19:15:49 +00:00

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The images

Every deploy tags an image with its version — that's what makes a rollback a docker run rather than a rebuild. It has also quietly put 7.7 GB on the host, 4.3 GB of it reclaimable, six ihasmail images at ~650 MB each. docker image prune won't help: they're tagged, which is the entire point of them.

The script that creates them now removes them, keeping the newest IHASMAIL_KEEP_VERSIONS (three by default; 0 keeps everything).

Two things it's careful about, both reasoned about rather than learned the hard way:

It runs only after the new container reports healthy, so a rollback target is never dropped while the thing meant to replace it is still unproven.
It excludes the image the container is running, by asking docker what that is rather than assuming it sorts newest. After a rollback it doesn't — the running image is an old one, and naive keep-the-newest-N would delete the image in use. Docker would refuse, but being refused isn't the same as not having tried.

Tested with a stub on PATH, so the real pipeline and `xargs` run

case	result
`KEEP=3`, running newest	removes `2.0` only
`KEEP=1`, running newest	removes `2.16.63`, `2.16.61`, `2.0`
`KEEP=0`	silent, removes nothing
`:current`	never listed for removal
rollback — running `2.16.61`, the 4th newest, `KEEP=1`	removes `2.16.64`, `2.16.63`, `2.0` — the running image is spared

The live verification

Records delete all spam as confirmed on the live 0.16.19 today: Junk Mail emptied, and Deleted Items stayed empty afterwards.

That second half is the one a mock can't prove and the one the feature exists for — a folder that empties into another folder has solved nothing. It's now in Known issues / pending QA with the date, in the same form as everything else there.

Docs and the deploy script only — no application code.

Merged 2026-08-26 as coffey-labs/ihasmail@e2f17f6f49

_{Rebuilt from: git history, session transcript.}

## The images Every deploy tags an image with its version — that's what makes a rollback a `docker run` rather than a rebuild. It has also quietly put **7.7 GB** on the host, **4.3 GB of it reclaimable**, six ihasmail images at ~650 MB each. `docker image prune` won't help: they're tagged, which is the entire point of them. The script that creates them now removes them, keeping the newest `IHASMAIL_KEEP_VERSIONS` (three by default; `0` keeps everything). **Two things it's careful about**, both reasoned about rather than learned the hard way: - It runs **only after the new container reports healthy**, so a rollback target is never dropped while the thing meant to replace it is still unproven. - It **excludes the image the container is running**, by asking docker what that is rather than assuming it sorts newest. After a rollback it doesn't — the running image is an old one, and naive keep-the-newest-N would delete the image in use. Docker would refuse, but being refused isn't the same as not having tried. ### Tested with a stub on PATH, so the real pipeline and `xargs` run | case | result | |---|---| | `KEEP=3`, running newest | removes `2.0` only | | `KEEP=1`, running newest | removes `2.16.63`, `2.16.61`, `2.0` | | `KEEP=0` | silent, removes nothing | | `:current` | never listed for removal | | **rollback** — running `2.16.61`, the 4th newest, `KEEP=1` | removes `2.16.64`, `2.16.63`, `2.0` — **the running image is spared** | ## The live verification Records **delete all spam** as confirmed on the live 0.16.19 today: Junk Mail emptied, and **Deleted Items stayed empty afterwards**. That second half is the one a mock can't prove and the one the feature exists for — a folder that empties into another folder has solved nothing. It's now in *Known issues / pending QA* with the date, in the same form as everything else there. Docs and the deploy script only — no application code. **Merged** 2026-08-26 as coffey-labs/ihasmail@e2f17f6f4945 <sub>Rebuilt from: git history, session transcript.</sub>

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Reference: coffey-labs/ihasmail-github-archive#66

Keep the last few images, and record delete-all-spam as verified live #66

The images

Tested with a stub on PATH, so the real pipeline and xargs run

The live verification

Tested with a stub on PATH, so the real pipeline and `xargs` run