Verified during plan execution that the ckn-bw systemd-bundle emitter
handles tuples and empty values as expected. SocketBindAllow port
range hard-coded since systemd directive variable substitution is not
universal.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Going back to the inline-in-reactor shape: hardening directives land in
ckn-bw's systemd_units reactor as shared Python dicts (HARDENING_COMMON
+ HARDENING_SERVER + HARDENING_WEB), spread into each unit's Service
block. Educational reference units in deploy/files/.../*.service stay
and get per-directive comments. Operator discipline hand-syncs the
reference to the reactor; no CI drift test.
The broader responsibility reshape — hardening drop-ins living in
left4me with ckn-bw as a thin file-shipper — is worth pursuing as a
separate dedicated session, not bundled into this refactor.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Hardening composition is application knowledge (which paths to bind, that
srcds is i386, what breaks sudo). It belongs in the left4me repo as
drop-in .conf files under deploy/files/etc/systemd/system/<unit>.d/.
ckn-bw shrinks: keeps the base units in its reactor, removes the
hardening keys, ships the drop-ins to /etc/systemd/system/. Existing
educational reference units in deploy/files/.../*.service are deleted in
favor of the drop-ins, which carry per-directive comments. Broader
configmgmt-responsibility reshape (base units leaving the reactor)
deliberately deferred to a future session.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
