chore(alpine): drop the deprecated Alpine 3.22 slot #213
2026-09-11
chore(alpine): drop the deprecated Alpine 3.22 slot
Alpine 3.22 is deprecated and is no longer a published slot.
It was never routed: `local.rpkgs_slots` in `cdn.tf` lists eight distros and
alpine322 is not among them, so `UNION_SLOTS` never gated per-minor rewriting
for it and every request fell through to the flat index.
The fleet-wide routing verification made that concrete.
Across all 16 published slots, both architectures, three R minors and both
contractual URL forms, 1056 of 1056 install-and-load checks passed.
Every failure in the run was alpine322, identical on amd64 and arm64, and
identical across `arch`, `generic` and `flat`.
That last part is the signature of an unrouted slot: on a routed slot the
contractual forms diverge from `flat`, because the divergence is the routing.
Its flat objects are R 4.5 builds, so R 4.4 and R 4.6 clients got
`LOAD_FAILED` while R 4.5 clients were fine.
This change will:
- Remove the alpine-322 matrix rows and dropdown options from every pipeline
that carried them, so `=all` no longer fans out to a slot nobody can reach.
- Remove `3.22` from the `OS_VERSION` dropdowns in `build-all-versions.yaml`
and `repair-built-stamp.yaml`, and move the latter's default to `3.23`.
- Update the stale `3.22` examples in `local/packages-to-build.R`.
The six alpine-322 cron jobs are deleted from the Crow server as well, since a
cron whose matrix row is gone would keep firing against nothing:
5 process-cran-updates-alpine-322-amd64 0 5/8 * * *
6 process-cran-updates-alpine-322-arm64 30 5/8 * * *
68 weekly-audit-missing-alpine-322-amd64 20 0 * * 0
69 weekly-audit-missing-alpine-322-arm64 30 0 * * 0
82 weekly-rebuild-missing-alpine-322-amd64 0 4 * * 0
83 weekly-rebuild-missing-alpine-322-arm64 10 4 * * 0
The published objects and indexes under `amd64/alpine322` and `arm64/alpine322`
are left in place; removing them from the bucket is a separate decision.