The 5000-5150 range was only ever checked against Asterisk's hardcoded
fixed ports (5038/5060/5061) for a first instance — no live scan of the
rest of the range, because the directory-count-based offset mechanism
only triggers for an explicit additional instance.
Confirmed live: this range sat unclaimed at the OS level while this
Traccar instance's container had never actually started, so an
unrelated service's own find_free_port scan found port 5007 genuinely
free (nothing was listening there yet) and took it — invisible to any
check until Traccar itself tried to bind its declared range for the
first time, failing with "port is already allocated".
Add a live scan across the whole intended range (skipping Asterisk's
expected carve-outs at the base 5000-5150 range) and shift by 1000,
same step the multi-instance path already uses, until genuinely clear.
Also fixed the compose-block and README generation, which keyed off
INSTANCE_SUFFIX being empty to decide whether Asterisk's exclusions
were needed — now keyed off whether the range is still the unshifted
default (PROTO_MIN -eq 5000), since a first instance can now end up
shifted too.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01H4k6J1qXXyYxhGEgnJaMvn
Claude
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