Use Bash to wait for container to start

check_container_status.sh

#!/bin/bash
IMAGE_NAME=test-1

# 1-liner
until [ $(docker inspect -f "{{json .State.Status }}" $(docker ps -a -q --filter ancestor=$IMAGE_NAME --format="{{.ID}}" | head -n 1)) == '"running"' ]; do echo "Waiting for container to start..." && sleep 1; done

# More readable
CONTAINER_ID=$(docker ps --all --quiet --filter ancestor=$IMAGE_NAME --format="{{.ID}}" | head -n 1)
CONTAINER_STATUS=$(docker inspect --format "{{json .State.Status }}" $CONTAINER_ID)
until [ $CONTAINER_STATUS == '"running"' ]
do
  echo "Waiting for container to start..."
  sleep 1
done