Getting the host's IP in a Makefile to populate into a docker-compose file

Makefile

#!/usr/bin/make

run:
	HOST_IP=$(shell ifconfig en0 | grep inet | grep -v inet6 | awk '{print $$2}') docker-compose -f confluent.yml up -d

# In your docker-compose file you can use something like:
# version: '3'
# services:
#   zookeeper:
#     image: confluentinc/cp-zookeeper:5.1.0
#     environment:
#       - ZOOKEEPER_CLIENT_PORT=2181
#     ports:
#       - 2181:2181
# 
#   kafka:
#     image: confluentinc/cp-kafka:5.1.0
#     environment:
#       - KAFKA_ZOOKEEPER_CONNECT=zookeeper:2181
#       - KAFKA_ADVERTISED_LISTENERS=PLAINTEXT://${HOST_IP}:9092
#       - KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR=1
#     depends_on:
#       - zookeeper
#     ports:
#       - 9092:9092