如何解决无法在“撰写”中使用现有网络:错误:网络已声明为外部网络,但找不到
我正在尝试创建必须加入现有堆栈的服务,因此我强制组合使用同一网络。
当然,我的网络仍然存在
docker network ls
NETWORK ID NAME DRIVER SCOPE
oiaxfyeil72z ELK_default overlay swarm
okhs1e1wu73y ELK_elk overlay swarm
我的docker-compose.yml
version: '3.3'
services:
logstash:
image: docker.elastic.co/logstash/logstash-oss:7.5.1
ports:
- "5000:5000"
- "9600:9600"
volumes:
- '/share/elk/logstash/config/logstash.yml:/usr/share/logstash/config/logstash.yml:ro'
- '/share/elk/logstash/pipeline/:/usr/share/logstash/pipeline/:ro'
environment:
LS_JAVA_OPTS: "-Xmx512m -Xms256m"
networks:
- elk
deploy:
mode: replicated
replicas: 1
networks:
elk:
external:
name: ELK_elk
其他服务是通过
创建的version: '3.3'
services:
elasticsearch:
image: docker.elastic.co/elasticsearch/elasticsearch:7.5.1
ports:
- "9200:9200"
- "9300:9300"
volumes:
- '/share/elk/elasticsearch/config/elasticsearch.yml:/usr/share/elasticsearch/config/elasticsearch.yml:ro'
environment:
ES_JAVA_OPTS: "-Xmx512m -Xms256m"
ELASTIC_PASSWORD: changeme
discovery.type: single-node
networks:
- elk
deploy:
mode: replicated
replicas: 1
kibana:
image: docker.elastic.co/kibana/kibana:7.5.1
ports:
- "5601:5601"
volumes:
- '/share/elk/kibana/config/kibana.yml:/usr/share/kibana/config/kibana.yml:ro'
networks:
- elk
deploy:
mode: replicated
replicas: 1
networks:
elk:
driver: overlay
检查Docker堆栈服务
docker stack services ELK
ID NAME MODE REPLICAS IMAGE PORTS
c0rux6mdvzq3 ELK_kibana replicated 1/1 docker.elastic.co/kibana/kibana:7.5.1 *:5601->5601/tcp
j824fd0blxdp ELK_elasticsearch replicated 1/1 docker.elastic.co/elasticsearch/elasticsearch:7.5.1 *:9200->9200/tcp,*:9300->9300/tcp
然后尝试使用docker-compose up -d
来启动该服务。该服务不会创建但会产生错误
docker-compose up -d
WARNING: Some services (logstash) use the 'deploy' key,which will be ignored. Compose does not support 'deploy' configuration - use `docker stack deploy` to deploy to a swarm.
WARNING: The Docker Engine you're using is running in swarm mode.
Compose does not use swarm mode to deploy services to multiple nodes in a swarm. All containers will be scheduled on the current node.
To deploy your application across the swarm,use `docker stack deploy`.
Removing tmp_logstash_1
Recreating bbf503fc3eaa_tmp_logstash_1 ... error
ERROR: for bbf503fc3eaa_tmp_logstash_1 Cannot start service logstash: Could not attach to network ELK_elk: rpc error: code = PermissionDenied desc = network ELK_elk not manually attachable
ERROR: for logstash Cannot start service logstash: Could not attach to network ELK_elk: rpc error: code = PermissionDenied desc = network ELK_elk not manually attachable
ERROR: Encountered errors while bringing up the project.
解决方法
该问题归因于麋鹿网络被定义为“重叠”网络。这是docker swarm功能,因此docker-compose不知道如何处理。
您需要部署docker swarm堆栈,而不是使用docker-compose up
:
docker stack deploy -c docker-compose.yml <service_name>
有关更多信息,请参考Docker文档: https://docs.docker.com/network/
,出于某种原因,非管理器节点只能看到使用它的活动容器的网络(在非管理器节点上运行):
docker run --rm -d --name dummy busybox # Run a dummy container
docker network connect [OVERLAY_NETWORK] dummy # Connect to overlay network
现在网络在非管理节点上可用,您可以运行:
docker compose -f compose.yaml -p project up -d
docker stop dummy # Remove dummy container
编写文件:
networks:
db:
external: true
driver: overlay
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