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logtail, health, panel: cite the source of what they rely on (assumptions part A)

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Comments only, no behaviour changed. Each place the log tailer, Health and
cmd/panel rely on another program now says where that is written, for the
version the image runs: Postfix 3.7.11 (log_adhoc(), msg_logger_print(),
smtpd_whatsup(), cleanup_milter.c, qmgr_active.c, postlogd.c, showq.c,
pipe.c), logrotate 3.21.0, supervisor 4.2.5, proc(5). Measurements stay
measurements and say where and when; test fixtures say whether they were
seen or composed.

Where the source contradicts the code the comment does not bless it but
names the register entry (A-8 expiry, A-12 the ISO stamp no Postfix writes,
A-15 the last recipient, A-21/A-23 sasl_username, A-33 postlogd's old
inode, A-38 a socket file is not a listener, A-65 the certificate served);
those are fixed in their own commits.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
mix
2026-10-14 19:36:11 +03:00
co-authored by Claude Opus 5.5
parent a8b6276b0d
commit ce363f48dd
25 changed files with 314 additions and 72 deletions
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internal/logtail/inbound_test.go
+4
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@@ -52,6 +52,10 @@ func inboundFixture() (*inboundJournal, *fakeInboundStore) {
var tailNow = time.Date(2026, 10, 11, 18, 0, 0, 0, time.UTC)
// The mail.log lines in this file are composed by hand, after
// src/smtpd/smtpd_check.c log_whatsup() and src/cleanup/cleanup_milter.c
// cleanup_milter_apply() (Postfix 3.7.11). Their ISO stamp is not a format
// Postfix writes (assumptions A-12); TestLineTime has the syslog one.
const (
head = "2026-10-11T12:00:05.123456+00:00 mail "
unknownRcp = head + "postfix/inbound/smtpd[41]: NOQUEUE: reject: RCPT from mx.example.net[203.0.113.9]: 550 5.1.1 <nobody@in.example.com>: Recipient address rejected: User unknown in relay recipient table; from=<a@example.net> to=<nobody@in.example.com> proto=ESMTP helo=<mx.example.net>"