With 70+ services sharing a handful of common default ports (emby and
jellyfin both default to 8096, changedetection and frigate both default
to 5000, arm and nextcloud both default to 8080...), nothing previously
checked whether a service's default port was actually free on the host.
Whichever service installed second would silently write a compose file
claiming an already-held port, only failing at `docker compose up` time.
Adds two shared helpers to lib/common.sh:
- port_in_use PORT [PROTO] — true if something's already listening
- find_free_port VARNAME START [PROTO] — scans upward, writes back the
first free port
Every service that publishes a fixed host port now scans before writing
docker-compose.yml, on every install (not just when adding an explicit
additional instance). On a normal single-install host this is a silent
no-op; it only changes behavior when something else already holds the
port.
- The 19 services already given multi-instance support this session had
their port scan moved out of the "add instance" branch to run
unconditionally, since the same collision risk exists on a plain first
install.
- 20 more services with previously-hardcoded ports gained scanning for
the first time: archivebox, arm, calibre-web, changedetection,
drum-rhythm-game, gatus, n8n, nextcloud, onlyoffice, stirling-pdf,
uptimekuma, portainer, iopaint (both GPU/CPU compose branches), koha
(paired), syncthing (paired), wg-easy (paired, plus WG_PORT env so
generated peer configs keep the right Endpoint), homeassistant
(bridge-mode only — host mode can only warn), frigate and
frigate-audio (multi-port stacks, moved together).
- caddy.sh is the deliberate exception: 80/443 stay fixed and only warn
on collision, since silently moving Caddy itself would leave nothing
listening where any client actually looks.
- authelia.sh needs no change — it has no published host port at all.
- Every service's standalone bootstrap fallback (sudo bash services/x.sh
with no sibling files) got the same two helpers duplicated into its
stub block, matching how every other shared helper is already handled
there.
Documents the full pattern in CLAUDE.md's new "Port collision avoidance"
section, including the quoted-heredoc/backtick-escaping gotcha and the
network_mode:host limitation (can only scan ports the app takes as a
configurable env var).
Verified via bash -n on every changed file, plus functional runs seeding
occupied ports for each collision shape used here (single, paired,
multi-port stacks) and confirming the scan/shift and generated
compose/README output are correct — including the emby/jellyfin,
nextcloud/arm, and frigate/changedetection collision scenarios that
originally motivated this.
traccar.sh's caddy_net wiring was fixed to mirror configure_caddy_for_service's
own mode resolution (CADDY_MODE from site config, then a local ~/docker/caddy,
then the legacy CADDY_REMOTE_HOST var) instead of only checking for the local
directory. That same bare directory check was copy-pasted into the caddy_net
wiring of every other Docker service in the repo, so a site with Caddy on a
different box would silently fail to join any of their containers to caddy_net
during setup (or, for homeassistant/koha, only get half the wiring right).
Applied the same fix mechanically across all 37 services using the standard
_CADDY_NET_BLOCK/_CADDY_NET_SECTION pattern (verified identical text via
scripted diff before touching any of them), plus by hand for:
- homeassistant.sh and koha.sh, which use their own differently-shaped
variables (HA_CADDY_NET_LINES / _CADDY_NET_ENTRY) for the same decision
- paintplus.sh and ai-stack.sh, which do a live `docker network connect`
instead of a compose network block
- watchyourlan.sh, whose Caddy note was worded for local-only setups
sms-inbound.sh got more than a mode swap: its Caddy wiring was hand-rolled
(not routed through configure_caddy_for_service) and had no remote-Caddy
path at all — a remote Caddy box would get a misleading "Caddy isn't
installed here" message instead of a snippet. Added
_sms_write_caddy_snippet(), mirroring the snippet-file pattern
configure_caddy_for_service uses everywhere else, and pointed the firewall
gate at the same three-way mode instead of a two-way dir check.
Verified: bash -n across all of services/*.sh, a scripted check that every
touched file has exactly one _CADDY_MODE resolution and no leftover bare
`[ -d "$DOCKER_DIR/caddy" ]` feeding a caddy_net decision, and spot-checked
docker compose config renders (traccar, mattermost) confirming the ${VAR}
interpolation and multi-service usage sites still resolve correctly.
New site config key: CADDY_REMOTE_HOST (set via 'sudo ./setup.sh configure').
When set, configure_caddy_for_service operates in "remote" mode instead of
writing to a local Caddyfile:
- Upstream uses CADDY_REMOTE_HOST:PORT (host IP, not container name)
- Snippet saved to ~/docker/caddy-snippets/<subdomain>.caddy
- User is shown scp/rsync commands to copy it to the Caddy machine
Three modes in configure_caddy_for_service (lib/common.sh and inline stubs):
local: ~/docker/caddy/ exists → write Caddyfile + reload (existing behavior)
remote: CADDY_REMOTE_HOST set → save snippet, print copy instructions
none: neither configured → silent return (unchanged)
All 31 service standalone bootstrap stubs updated with the new logic.
CADDY_REMOTE_HOST global added to all 42 standalone bootstrap sections.
setup.sh configure now prompts for CADDY_REMOTE_HOST with a clear explanation.
wolf.sh: add missing stubs (configure_caddy_for_service, write_readme,
prompt_yn, ensure_docker_dir_ownership) and the Authelia/Caddy/start calls
that were missing from the install function.
https://claude.ai/code/session_014CCYqVwW6d6f5dw1qRokYt
Each service can now be run directly with sudo bash <service>.sh on any
machine with Docker installed, without needing the full post-install repo.
Uses the shared bootstrap pattern from docs/standalone-template.sh.
https://claude.ai/code/session_014CCYqVwW6d6f5dw1qRokYt
Undo the host.docker.internal approach from the previous commit — proper
Docker networking routes Caddy to services by container name on the shared
caddy_net, not via the host gateway.
- lib/common.sh: configure_caddy_for_service now accepts either a plain
port number (localhost:PORT fallback) or container:port (preferred).
The Caddyfile entry uses the container name for direct Docker DNS routing.
- services/caddy.sh: remove extra_hosts hack; update Caddyfile template
comments to show container_name:port format
- All service files: update configure_caddy_for_service calls to pass
container_name:internal_port (e.g. "filebrowser:80", "mealie:9000").
Services using network_mode:host keep plain port numbers.
- tools/manage_users.sh: new FileBrowser user-management script (deployed
to ~/docker/filebrowser/ during installation). Manages users via the
FileBrowser REST API: list, add, delete, passwd, scope, info commands.
Documents username format (letters/numbers/hyphens/underscores),
password rules (min 8 chars, letter + number required), and scope path
convention relative to /srv (= FB_PATH on the host).
https://claude.ai/code/session_01UZus2Q9gNTfUdqSMrhuX29
- lib/common.sh: fix broken reverse_proxy target — localhost inside Caddy's
container is the container's own loopback, not the host; change to
host.docker.internal so proxied ports are actually reachable
- services/caddy.sh: add extra_hosts host.docker.internal:host-gateway so
the above resolves correctly; create caddy_net bridge network in Caddy's
own compose so other services can reference it as external; update all
Caddyfile template comments and README examples to match
- services/filebrowser.sh: update image tag from deprecated :s6 to :latest;
remove non-functional PUID/PGID env vars (filebrowser/filebrowser does not
honour them); add configure_caddy_for_service call; add caddy_net
- services/ntfy.sh: add configure_caddy_for_service call; add caddy_net
- services/portainer.sh: add configure_caddy_for_service call; add caddy_net
- services/frigate-notify.sh, watchtower.sh: add caddy_net for
container-to-container comms (frigate, ntfy) without a Caddy call
- All remaining web-facing Docker services: add caddy_net network block to
docker-compose and CADDY_NET to .env where applicable; services using
network_mode: host (wolf-pair, lyrion) have the top-level block only
https://claude.ai/code/session_01UZus2Q9gNTfUdqSMrhuX29
- lib/common.sh: add write_readme helper. Every module now writes a README.md
into its ~/docker/<service>/ folder (self-documenting service folders).
- services/authelia.sh: SSO + 2FA portal, ported from the authelia-setup repo +
the monolith's working block (secrets + Argon2 hash generation, caddy_net,
Caddyfile forward-auth snippet + portal block, README). Guards against
clobbering an existing install.
- services/{filebrowser,ntfy,uptimekuma,portainer,watchtower}.sh: mechanical
migrations from the monolith, each with a README. Ports 8085/8090/3001/9443/—.
All pass bash -n; ./setup.sh --list shows them under homelab; dry-run run-one
exits 0 for each with real commands guarded.
https://claude.ai/code/session_017eA2qqq9jfF2tNtpUYL8vK
Claude