Startup script for SSDP mirroring on a UDM Pro

30-ssdp-relay.sh

#!/bin/sh
# file: /mnt/data/on_boot.d/30-ssdp-relay.sh
# See https://github.com/unifi-utilities/unifios-utilities
# for info on how to setup on-boot scripts

CONTAINER="ssdp-relay"

# Specify which interfaces to relay, number is VLAN number
INTERFACES="br10 br20"

if podman container exists "$CONTAINER"; then
  podman start "$CONTAINER"
else
  podman run -d \
    --network=host \
    --name="${CONTAINER}" \
    --restart=always \
    -e INTERFACES="${INTERFACES}" \
    -e OPTS="--noMDNS" \
    scyto/multicast-relay:latest
fi

Note that this disables the mDNS feature of the container since UDM Pro has that built into the UI