"Kibana server is not ready yet" when running from OpenDistro docker image

I use the following docker-compose to run an elasticsearch cluster and kibana:

services:
  odfe-node1:
    image: amazon/opendistro-for-elasticsearch:1.3.0
    container_name: odfe-node1
    environment:
      - cluster.name=odfe-cluster
      - node.name=odfe-node1
      - discovery.seed_hosts=odfe-node1,odfe-node2
      - cluster.initial_master_nodes=odfe-node1,odfe-node2
      - bootstrap.memory_lock=true # along with the memlock settings below, disables swapping
      - "ES_JAVA_OPTS=-Xms512m -Xmx512m" # minimum and maximum Java heap size, recommend setting both to 50% of system RAM
    ulimits:
      memlock:
        soft: -1
        hard: -1
      nofile:
        soft: 65536 # maximum number of open files for the Elasticsearch user, set to at least 65536 on modern systems
        hard: 65536
    volumes:
      - odfe-data1:/usr/share/elasticsearch/data
    ports:
      - 9200:9200
      - 9600:9600 # required for Performance Analyzer
    networks:
      - odfe-net
  odfe-node2:
    image: amazon/opendistro-for-elasticsearch:1.3.0
    container_name: odfe-node2
    environment:
      - cluster.name=odfe-cluster
      - node.name=odfe-node2
      - discovery.seed_hosts=odfe-node1,odfe-node2
      - cluster.initial_master_nodes=odfe-node1,odfe-node2
      - bootstrap.memory_lock=true
      - "ES_JAVA_OPTS=-Xms512m -Xmx512m"
    ulimits:
      memlock:
        soft: -1
        hard: -1
      nofile:
        soft: 65536
        hard: 65536
    volumes:
      - odfe-data2:/usr/share/elasticsearch/data
    networks:
      - odfe-net
  kibana:
    image: amazon/opendistro-for-elasticsearch-kibana:1.3.0
    container_name: odfe-kibana
    ports:
      - 5601:5601
    expose:
      - "5601"
    environment:
      ELASTICSEARCH_URL: https://odfe-node1:9200
      ELASTICSEARCH_HOSTS: https://odfe-node1:9200
      LOGGING_VERBOSE: "true"
    networks:
      - odfe-net

volumes:
  odfe-data1:
  odfe-data2:

networks:
  odfe-net:

No errors show up in logs, and elastic cluster runs fine - I can query and submit documents; but when I try to load Kibana by going to http://localhost:5601 in the browser, I get Kibana server is not ready yet message both in the browser and in the logs.

Any ideas about what might be wrong?

Turned out that I had to allocate more memory for the Docker service (Settings -> Advanced) and Kibana starts as expected now