Initial import into git

avahi-browse

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+#!/bin/sh
+set -eu
+exec docker compose exec reflector avahi-browse "$@"

avahi-resolve

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+#!/bin/sh
+set -eu
+exec docker compose exec reflector avahi-resolve "$@"

docker-compose-example.yml

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+services:
+  reflector:
+    build:
+      context: ./docker
+    container_name: "avahi-reflector"
+    pull_policy: build
+    restart: unless-stopped
+    network_mode: host
+    environment:
+      - "AVAHI_INTERFACES=dummy0"
+    # Ref: https://docs.docker.com/reference/dockerfile/#healthcheck
+    healthcheck:
+      test: ["CMD", "avahi-browse", "-a", "-c"]
+      interval: 1m30s
+      timeout: 30s
+      retries: 3
+      start_period: 5s
+      start_interval: 5s

docker/Dockerfile

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+FROM alpine:latest
+RUN apk --no-cache add \
+    avahi \
+    avahi-tools \
+    dbus \
+    envsubst \
+    s6-overlay \
+    socat
+
+COPY ./services.d/ /etc/services.d/
+COPY wait-for-dbus /usr/local/bin/
+COPY avahi-daemon.conf.template /etc/avahi/
+COPY entrypoint-dlitz.sh /
+
+ENTRYPOINT ["/entrypoint-dlitz.sh"]
+ENV AVAHI_INTERFACES=dummy0
+
+#CMD ["/usr/sbin/avahi-daemon"]
+CMD ["/bin/sh", "-c", "wait-for-dbus ; exec /usr/sbin/avahi-daemon"]
+

docker/avahi-daemon.conf.template

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+# vim:set backupcopy=yes:
+
+[server]
+use-ipv4=yes
+use-ipv6=yes
+ratelimit-interval-usec=1000000
+ratelimit-burst=1000
+enable-dbus=yes
+
+#allow-interfaces=br0,ve-wuuf-int
+#allow-interfaces=br0,vlan-iot,ve-wuuf
+#allow-interfaces=br0,ve-wuuf
+allow-interfaces=${AVAHI_INTERFACES}
+
+[publish]
+disable-publishing=yes
+
+[reflector]
+enable-reflector=yes
+#reflect-ipv=no
+#reflect-filters=

docker/entrypoint-dlitz.sh

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+#!/bin/sh
+set -eu
+envsubst < /etc/avahi/avahi-daemon.conf.template > /etc/avahi/avahi-daemon.conf
+exec /init "$@"

docker/services.d/dbus/run

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+#!/bin/sh
+set -eu
+[ -f ./setup ] && source ./setup
+#exec /usr/bin/dbus-daemon --system --nofork --nosyslog
+exec /usr/bin/dbus-daemon --system --nofork

docker/services.d/dbus/setup

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+#!/bin/sh
+set -eu
+mkdir -p /run/dbus
+
+# Clean up stale pid file, if present.
+pidfile=/run/dbus/dbus.pid
+pid=$(cat "$pidfile" || true)
+if [ -n "$pid" ] && ! [ -d "/proc/$pid" ]; then
+    echo >&2 "Removing stale PID file $pidfile"
+    rm -f "$pidfile"
+fi

docker/wait-for-dbus

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+#!/bin/sh
+# dlitz 2025
+set -eu
+prog="$(basename "$0")"
+socket=/run/dbus/system_bus_socket
+for i in 1 2 3 4 5 6 7 8 9 10; do
+    if test -e "$socket" && socat -u stdio unix-connect:"$socket" </dev/null >/dev/null; then
+        echo >&2 "$prog: dbus socket connection successful: $socket"
+        exit 0
+    fi
+    echo >&2 "$prog: Could not connect to dbus socket $socket. Sleeping..."
+    sleep 1
+done
+echo >&2 "$prog: dbus socket connection failed: continuing anyway: $socket"