Same pattern already established by services/mattermost.sh and
services/wordpress.sh: first instance keeps the plain name/paths/
ports exactly as before (zero behavior change for anyone with a
single instance already installed), and only choosing to add a second
introduces suffixed naming with its own directory, containers, and
ports.
- audiobookshelf.sh, emby.sh, mealie.sh: straightforward -- suffixed
dir/container name, auto-scanned free host port(s) via `ss`, Caddy
subdomain default suffixed to avoid collision. emby.sh's existing
music-only mode is untouched, just correctly parameterized.
- traccar.sh: the harder one -- has its own dedicated Postgres
container, an autoheal container, and a 150-port device-protocol
range that can't be scanned port-by-port. Additional instances shift
the whole range by 1000 (6000-6150, 7000-7150, ...) based on how
many traccar/traccar-* directories already exist, which never lands
on Asterisk's fixed ports the way the first instance's range does,
so no exclusions are needed there. Also scoped the autoheal label
per-instance (autoheal-traccar-<suffix>) -- autoheal watches by
Docker label host-wide, not scoped to a compose project, so two
instances sharing the generic "autoheal" label would each try to
manage the other's container too.
Found and fixed two real bugs via testing before committing, not just
code review:
- The device-protocol range offset counted existing instances via
`find $DOCKER_DIR -maxdepth 1 -name 'traccar*'`, which also matches
$DOCKER_DIR itself if its own basename happens to start with
"traccar" (true in my test harness, structurally possible in real
use too) -- fixed with -mindepth 1.
- Verified port auto-scanning actually detects a simulated in-use
port and increments past it, using a stateful fake `ss` rather than
trusting the logic by inspection alone.
Verified end-to-end for all four: first instance unchanged from prior
behavior, second instance gets fully distinct dir/containers/ports,
and (traccar specifically) correct DB container, correctly-scoped
autoheal label, and correct shifted port range in the generated
compose file.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TBtExJcqxnokyZZKmphdug
Claude
d5d979ac31