[英]httpoison cannot access elasticsearch from webapp in a docker environment
當嘗試使用webapp(使用elixir / ecto作為后端語言),postgres數據庫,elasticsearch和kibana使用以下docker-compose.yaml文件啟動項目時:
version: '3'
services:
registry:
restart: always
image: registry:2
ports:
- 443:443
volumes:
- /path/data:/var/lib/registry
- /path/certs:/registry/certs
- /path/auth:/registry/auth
webapp:
build:
context: ../../../
dockerfile: config/docker/dev/Dockerfile-dev
container_name: MyWebApp-dev
image: 'localhost:443/123'
environment:
- ELASTICSEARCH_URL=http://localhost:9200
- ELASTICSEARCH_HOST=localhost
ports:
- "4000:4000"
- "3000:3000"
depends_on:
- db
- elasticsearch
- kibana
networks:
- esnet
db:
image: postgres:10
container_name: db
environment:
- POSTGRES_USER=paul
- POSTGRES_PASSWORD=SilviaZita1
- POSTGRES_DB=snitch_dev
networks:
- esnet
elasticsearch:
image: docker.elastic.co/elasticsearch/elasticsearch:7.0.1
container_name: elasticsearch
environment:
- node.name=elasticsearch
- discovery.seed_hosts=es02
- cluster.initial_master_nodes=elasticsearch,es02
- cluster.name=docker-cluster
- bootstrap.memory_lock=true
- "ES_JAVA_OPTS=-Xms512m -Xmx512m"
ulimits:
memlock:
soft: -1
hard: -1
volumes:
- esdata01:/usr/share/elasticsearch/data
ports:
- 9200:9200
- 9300:9300
networks:
- esnet
es02:
image: docker.elastic.co/elasticsearch/elasticsearch:7.0.1
container_name: es02
environment:
- node.name=es02
- discovery.seed_hosts=elasticsearch
- cluster.initial_master_nodes=elasticsearch,es02
- cluster.name=docker-cluster
- bootstrap.memory_lock=true
- "ES_JAVA_OPTS=-Xms512m -Xmx512m"
ulimits:
memlock:
soft: -1
hard: -1
volumes:
- esdata02:/usr/share/elasticsearch/data
networks:
- esnet
kibana:
image: docker.elastic.co/kibana/kibana:7.0.1
ports:
- "5601:5601"
container_name: kibana
environment:
- ELASTICSEARCH_URL=http://elasticsearch:9200
- ELASTICSEARCH_HOST=elasticsearch
depends_on:
- elasticsearch
networks:
- esnet
volumes:
esdata01:
driver: local
esdata02:
driver: local
networks:
esnet:
,
我收到以下錯誤:
**(混合)無法創建索引產品。 MyWebApp-dev | MyWebApp-dev | %HTTPoison.Error {id:nil,reason :: econnrefused}
有誰知道如何解決這個問題?
當您嘗試從您的webapp
訪問elasticsearch
時,我相信您收到此連接被拒絕錯誤。
在容器內使用localhost
引用自身。 在docker-compose中,如果要訪問另一個正在偵聽特定端口的服務,則必須構建URL,如http://<service-name>:<port>
在你的情況下:
如果你想從webapp
容器訪問正在監聽9200
elasticsearch
服務,那么你的URL應該是http://elasticsearch:9200
在你的webapp
的服務定義, ELASTICSEARCH_URL
和ELASTICSEARCH_HOST
使用elasticsearch
,而不是localhost
。
使用以下撰寫文件:
version: '3'
services:
registry:
restart: always
image: registry:2
ports:
- 443:443
volumes:
- /path/data:/var/lib/registry
- /path/certs:/registry/certs
- /path/auth:/registry/auth
webapp:
build:
context: ../../../
dockerfile: config/docker/dev/Dockerfile-dev
container_name: MyWebApp-dev
image: 'localhost:443/123'
environment:
- ELASTICSEARCH_URL=http://elasticsearch:9200
- ELASTICSEARCH_HOST=elasticsearch
ports:
- "4000:4000"
- "3000:3000"
depends_on:
- db
- elasticsearch
- kibana
networks:
- esnet
db:
image: postgres:10
container_name: db
environment:
- POSTGRES_USER=paul
- POSTGRES_PASSWORD=SilviaZita1
- POSTGRES_DB=snitch_dev
networks:
- esnet
elasticsearch:
image: docker.elastic.co/elasticsearch/elasticsearch:7.0.1
container_name: elasticsearch
environment:
- node.name=elasticsearch
- discovery.seed_hosts=es02
- cluster.initial_master_nodes=elasticsearch,es02
- cluster.name=docker-cluster
- bootstrap.memory_lock=true
- "ES_JAVA_OPTS=-Xms512m -Xmx512m"
ulimits:
memlock:
soft: -1
hard: -1
volumes:
- esdata01:/usr/share/elasticsearch/data
ports:
- 9200:9200
- 9300:9300
networks:
- esnet
es02:
image: docker.elastic.co/elasticsearch/elasticsearch:7.0.1
container_name: es02
environment:
- node.name=es02
- discovery.seed_hosts=elasticsearch
- cluster.initial_master_nodes=elasticsearch,es02
- cluster.name=docker-cluster
- bootstrap.memory_lock=true
- "ES_JAVA_OPTS=-Xms512m -Xmx512m"
ulimits:
memlock:
soft: -1
hard: -1
volumes:
- esdata02:/usr/share/elasticsearch/data
networks:
- esnet
kibana:
image: docker.elastic.co/kibana/kibana:7.0.1
ports:
- "5601:5601"
container_name: kibana
environment:
- ELASTICSEARCH_URL=http://elasticsearch:9200
- ELASTICSEARCH_HOST=elasticsearch
depends_on:
- elasticsearch
networks:
- esnet
volumes:
esdata01:
driver: local
esdata02:
driver: local
networks:
esnet:
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