在docker中连接mongo express服务的问题

Question

我有一个 docker 配置，我在其中启动了 nginx 服务器。 现在我必须运行 mongo 和 mongo-express 才能连接到我的数据库。 当我将这两个的配置放入 docker-compose.yml 并尝试 docker compose up 时，mongo 服务启动但 mongo express 显示此错误

Could not connect to database using connectionString: mongodb://root:pass@mongodb:27017/" mongo-express_1 | (node:8) UnhandledPromiseRejectionWarning: MongoNetworkError: failed to connect to server [mongodb:27017] on first connect

任何帮助表示赞赏，这是我的配置。

码头工人-compose.yml

version: "3"

services:
app:
  build:
    context: .
    dockerfile: Dockerfile
  image: cryptoterminal
  container_name: app
  restart: unless-stopped
  volumes:
    - ./:/var/www

webserver:
  build:
    context: .
    dockerfile: Dockerfile_Nginx
  image: nginx
  container_name: webserver
  restart: unless-stopped
  ports:
    - "8080:80"
  volumes: 
    - ./:/var/www
    - ./config/nginx/:/etc/nginx/conf.d/
  depends_on:
    - app
mongo:
  image: mongo
  environment:
      - MONGO_INITDB_ROOT_USERNAME=root
      - MONGO_INITDB_ROOT_PASSWORD=pass
mongo-express:
  image: mongo-express
  environment:
    - ME_CONFIG_MONGODB_SERVER=mongodb
    - ME_CONFIG_MONGODB_ENABLE_ADMIN=true
    - ME_CONFIG_MONGODB_ADMINUSERNAME=root
    - ME_CONFIG_MONGODB_ADMINPASSWORD=pass
    - ME_CONFIG_BASICAUTH_USERNAME=admin
    - ME_CONFIG_BASICAUTH_PASSWORD=admin123
  depends_on:
      - mongo
  ports:
    - "8888:8081"

Dockerfile

FROM php:7.4-fpm-alpine

WORKDIR /var/www

RUN apk update && apk add \

build-base \
vim

RUN addgroup -g 1000 -S www && \
adduser -u 1000 -S www -G www

USER www

COPY --chown=www:www . /var/www

EXPOSE 9000

Dockerfile_Nginx

FROM nginx:alpine

COPY ./config/nginx/app.conf /etc/nginx/conf.d/app.conf

COPY . /var/www

.env 文件

MONGO_DB_URI=mongodb://root:pass@mongodb:27017/crypto-terminal?authSource=admin

app.conf 文件

server {
    listen 80;
    index index.php index.html;
    error_log /var/log/nginx/error.log;
    access_log /var/log/nginx/access.log;
    root /var/www;
    location ~ \.php$ {
        try_files $uri =404;
        fastcgi_split_path_info ^(.+\.php)(/.+)$;
        fastcgi_pass app:9000;
        fastcgi_index index.php;
        include fastcgi_params;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        fastcgi_param PATH_INFO $fastcgi_path_info;
    }
    location / {
        try_files $uri $uri/ /index.php?$query_string;
    }
}

文件夹结构

project_folder
    php
        config
            nginx
                app.conf
    .env
    Dockerfile
    Dockerfile_Nginx
    docker-compose.yml
    index.php

Answer 1

在您的 docker-compose 文件中，您调用 mongo 服务mongo 。 这就是您可以在 docker 网络上对其进行寻址的名称。 在您的连接字符串中，您说过

mongodb://root:pass@mongodb:27017/"

它应该是

mongo://root:pass@mongo:27017/"

由于连接字符串是使用 docker-compose 文件中的环境变量构建的，因此要更改的是

- ME_CONFIG_MONGODB_SERVER=mongodb

至

- ME_CONFIG_MONGODB_SERVER=mongo

Answer 2

 enter code here

# Use root/example as user/password credentials
version: '3.1'

services:`enter code here`

  mongodb:
    image: mongo
    restart: always
    container_name: mongodb
    ports:
      - 27017:27017
    environment:
      MONGO_INITDB_ROOT_USERNAME: root
      MONGO_INITDB_ROOT_PASSWORD: root
    volumes:
      - mongodb:/data/db:rw
      - mongoconfig:/data/configdb:rw
    networks:
      - mongodb
      
  mongo-express:
    image: mongo-express
    restart: always
    container_name: mongo-express
    ports:
      - 8889:8081
    environment:
      ME_CONFIG_MONGODB_ADMINUSERNAME: root
      ME_CONFIG_MONGODB_ADMINPASSWORD: root
      ME_CONFIG_MONGODB_SERVER: mongodb
    depends_on:
      - mongodb
    links:
      - mongodb:mongodb
    networks:
      - mongodb
      
volumes:
  mongodb:
    name: mongodb
    driver: local
    external: false
  mongoconfig:
    name: mongoconfig
    driver: local
    external: false
    
networks:
  mongodb:
    name: mongodb
    driver: bridge
    

# docker exec -it mongodb /bin/bash
# mongo -u root -p
# localhost:8889