无法连接到本地主机端口 9200

Question

当我在容器外调用curl http://localhost:9200时，它工作正常，但是当我在php容器内调用它时，我有一个错误：curl: (7) Failed to connect to localhost port 9200: Connection refused

docker-compose.yml：

version: '3.4'
services:
php:
build:
context: .
target: sylius_php
cache_from:
- quay.io/sylius/php:latest
- quay.io/sylius/nodejs:latest
- quay.io/sylius/nginx:latest
image: quay.io/sylius/php:latest
container_name: php
environment:
USER_ID: 1000
APP_ENV: ${APP_ENV}
APP_DEBUG: ${APP_DEBUG}
APP_SECRET: ${APP_SECRET}
PHP_DATE_TIMEZONE: ${PHP_DATE_TIMEZONE:-UTC}
volumes:
- .:/srv/sylius:rw,cached
- ./public:/srv/sylius/public:rw,delegated
- public-media:/srv/sylius/public/media:rw
elasticsearch:
image: docker.elastic.co/elasticsearch/elasticsearch:6.4.3
container_name: elasticsearch
environment:
- cluster.name=docker-cluster
- bootstrap.memory_lock=true
- "ES_JAVA_OPTS=-Xms512m -Xmx512m"
ulimits:
memlock:
soft: -1
hard: -1
volumes:
- esdata1:/usr/share/elasticsearch/data
ports:
- 9200:9200
networks:
- esnet
elasticsearch2:
image: docker.elastic.co/elasticsearch/elasticsearch:6.4.3
container_name: elasticsearch2
environment:
- cluster.name=docker-cluster
- bootstrap.memory_lock=true
- "ES_JAVA_OPTS=-Xms512m -Xmx512m"
- "discovery.zen.ping.unicast.hosts=elasticsearch"
ulimits:
memlock:
soft: -1
hard: -1
volumes:
- esdata2:/usr/share/elasticsearch/data
networks:
- esnet
volumes:
esdata1:
driver: local
esdata2:
driver: local
networks:
esnet:

问题是我需要从我的 php 容器访问 elasticsearch 服务器才能执行与 php 相关的某些命令。

Answer 1

每个容器在内部网络上都有不同的 IP，但它可以在与其服务名称对应的主机上访问，在您的情况下，它将是 http://elasticsearch:9200 和 http://elasticsearch2:9200。