我正在使用Docker version 1.12.3
和docker-compose version 1.8.1
。我有一些服务,其中包含例如elasticsearch,rabbitmq和webappdocker-compose - 网络 -/etc/hosts未更新
我的问题是服务无法通过其主机访问其他服务因为docker-compose不会将所有服务热点放在/etc/hosts
文件中。我不知道他们的IP,因为它是在docker-compose up
阶段定义的。
我使用networks
功能,因为它描述在https://docs.docker.com/compose/networking/而不是links
,因为我做循环引用和links
不支持它。但使用networks
不会将所有服务主机放到每个服务节点/etc/hosts
文件中。我设置了container_name,我设置了主机名但没有发生任何事情。我缺少的东西;
这是我的docker-compose.yml;
version: '2'
services:
elasticsearch1:
image: elasticsearch:5.0
container_name: "elasticsearch1"
hostname: "elasticsearch1"
command: "elasticsearch -E cluster.name=GameOfThrones -E node.name='Ned Stark' -E discovery.zen.ping.unicast.hosts=elasticsearch1,elasticsearch2,elasticsearch3"
volumes:
- "/opt/elasticsearch/data"
ports:
- "9200:9200"
- "9300:9300"
networks:
- webapp
elasticsearch2:
image: elasticsearch:5.0
container_name: "elasticsearch2"
hostname: "elasticsearch2"
command: "elasticsearch -E cluster.name=GameOfThrones -E node.name='Daenerys Targaryen' -E discovery.zen.ping.unicast.hosts=elasticsearch1,elasticsearch2,elasticsearch3"
volumes:
- "/opt/elasticsearch/data"
networks:
- webapp
elasticsearch3:
image: elasticsearch:5.0
container_name: "elasticsearch3"
hostname: "elasticsearch3"
command: "elasticsearch -E cluster.name=GameOfThrones -E node.name='John Snow' -E discovery.zen.ping.unicast.hosts=elasticsearch1,elasticsearch2,elasticsearch3"
volumes:
- "/opt/elasticsearch/data"
networks:
- webapp
rabbit1:
image: harbur/rabbitmq-cluster
container_name: "rabbit1"
hostname: "rabbit1"
environment:
- ERLANG_COOKIE=abcdefg
networks:
- webapp
rabbit2:
image: harbur/rabbitmq-cluster
container_name: "rabbit2"
hostname: "rabbit2"
environment:
- ERLANG_COOKIE=abcdefg
- CLUSTER_WITH=rabbit1
- ENABLE_RAM=true
networks:
- webapp
rabbit3:
image: harbur/rabbitmq-cluster
container_name: "rabbit3"
hostname: "rabbit3"
environment:
- ERLANG_COOKIE=abcdefg
- CLUSTER_WITH=rabbit1
networks:
- webapp
my_webapp:
image: my_webapp:0.2.0
container_name: "my_webapp"
hostname: "my_webapp"
command: "supervisord -c /etc/supervisor/supervisord.conf -n"
environment:
- DYNACONF_SETTINGS=settings.prod
ports:
- "8000:8000"
tty: true
networks:
- webapp
networks:
webapp:
driver: bridge
这就是我的理解,他们不能相互交流;
在elasticserach集群初始化时出现此错误;
Caused by: java.net.UnknownHostException: elasticsearch3
而且这是我的泊坞窗,构成
docker-compose up
看起来对我来说很好。 Docker不再使用'/ etc/hosts',一切都通过内部DNS完成。你是说你的服务不能相互沟通?你打算怎么打电话给他们?应该只能使用服务名称。 – johnharris85
@ johnharris85,我更新了这个问题。我在elasticsearch集群初始化中看到'由java.net.UnknownHostException:elasticsearch3引起,我只在我的本地Mac OS计算机上使用'docker-compose up'。 –