Files
ubuntu-post-install/tools
Claude c50704e1b3 Add automatic tab-completion setup and old config-backup pruning
Two things surfaced from actual use this session:

1. Tab completion (tools/setup-completion.bash, added earlier) required
   manually editing ~/.bashrc — easy to skip or get wrong (confirmed
   live: the source line never actually landed the first time). base
   now wires it in automatically (idempotent, checked by grep first),
   matching how it already touches ~/.bashrc for SSH Host aliases.

2. No pruning existed anywhere for the *.backup.<timestamp> files ~60
   different services create before overwriting a live config
   (Caddyfile, /etc/fstab, etc) — every one of them backs up, none
   clean up, so they accumulate forever on a box reconfigured
   regularly. tools/prune-old-backups.sh prunes by file mtime (not by
   parsing the timestamp out of the filename — robust to the
   %Y%m%d-%H%M%S vs %Y%m%d_%H%M%S inconsistency across services),
   always keeping the single newest backup per distinct file
   regardless of age. Verified both the normal case (mixed old/new,
   prunes only the old ones) and the edge case (every backup for a
   file is old, keeps the newest one anyway) against real fixtures.
   base offers it as a daily systemd timer (prompted, since it deletes
   files — unlike the tab-completion wiring, which doesn't).

Also added logrotate for Caddy's own access logs
(/var/log/caddy/*.log), which had no rotation at all and grow
unbounded on an active box. Uses copytruncate specifically: the log
directory is bind-mounted into the running Caddy container and read
live by CrowdSec, so truncating in place avoids either of them needing
to notice or react to a rotation happening.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01H4k6J1qXXyYxhGEgnJaMvn
2026-08-11 04:48:11 +00:00
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