[英]Mongodb connection error inside docker container
我一直在尝试获得一个基本的 nodeJS api 来连接到 mongo 容器。 这两个服务都在 docker-compose.yml 文件中定义。 我在这里和 docker 的论坛上读过无数类似的问题,都说问题是你的 mongo 连接 URI。 这不是我的问题,您将在下面看到。
docker-compose.yml
version: '3.7'
services:
api:
build: ./
command: npm run start:dev
working_dir: /usr/src/api-boiler/
restart: always
environment:
PORT: 3001
MONGODB_URI: mongodb://mongodb:27017/TodoApp
JWT_SECRET: asdkasd9a9sdn2r3513032
links:
- mongodb
ports:
- "3001:3001"
volumes:
- ./:/usr/src/api-boiler/
depends_on:
- mongodb
mongodb:
image: mongo
restart: always
volumes:
- /usr/local/var/mongodb:/data/db
ports:
- 27017:27017
文件
FROM node:10.8.0
WORKDIR /usr/src/api-boiler
COPY ./ ./
RUN npm install
CMD ["/bin/bash"]
db/mongoose.js设置 mongodb 连接
const mongoose = require('mongoose');
mongoose.Promise = global.Promise;
mongoose.connect(
process.env.MONGODB_URI,
{ useMongoClient: true }
);
module.exports.mongoose = mongoose;
但是无论什么api容器都连接不上。 我尝试将 mongo uri 设置为 0.0.0.0:3001 但没有任何乐趣。 我使用 db.serverCmdLineOpts() 检查了用于在容器中启动 mongo 的配置设置。 而且,命令 bind_ip_all 已经通过,所以 mongo 应该接受来自任何 ip 的连接。 典型的问题是人们忘记用他们的 mongo 容器名称替换 localhost。 例如:mongodb://localhost:27017/TodoApp >> mongodb://mongodb:27017/TodoApp
但是,这已经做到了。 太难了。
日志 - 很好的衡量标准
Successfully built 388868008521
Successfully tagged api-boiler_api:latest
Starting api-boiler_mongodb_1 ... done
Recreating api-boiler_api_1 ... done
Attaching to api-boiler_mongodb_1, api-boiler_api_1
mongodb_1 | 2018-08-20T20:09:27.072+0000 I CONTROL [main] Automatically disabling TLS 1.0, to force-enable TLS 1.0 specify -- sslDisabledProtocols 'none'
mongodb_1 | 2018-08-20T20:09:27.085+0000 I CONTROL [initandlisten] MongoDB starting : pid=1 port=27017 dbpath=/data/db 64-bit host=72af162616c8
mongodb_1 | 2018-08-20T20:09:27.085+0000 I CONTROL [initandlisten] db version v4.0.1
mongodb_1 | 2018-08-20T20:09:27.085+0000 I CONTROL [initandlisten] git version: 54f1582fc6eb01de4d4c42f26fc133e623f065fb
mongodb_1 | 2018-08-20T20:09:27.085+0000 I CONTROL [initandlisten] OpenSSL version: OpenSSL 1.0.2g 1 Mar 2016
mongodb_1 | 2018-08-20T20:09:27.085+0000 I CONTROL [initandlisten] allocator: tcmalloc
mongodb_1 | 2018-08-20T20:09:27.085+0000 I CONTROL [initandlisten] modules: none
mongodb_1 | 2018-08-20T20:09:27.085+0000 I CONTROL [initandlisten] build environment:
mongodb_1 | 2018-08-20T20:09:27.085+0000 I CONTROL [initandlisten] distmod: ubuntu1604
mongodb_1 | 2018-08-20T20:09:27.085+0000 I CONTROL [initandlisten] distarch: x86_64
mongodb_1 | 2018-08-20T20:09:27.085+0000 I CONTROL [initandlisten] target_arch: x86_64
mongodb_1 | 2018-08-20T20:09:27.085+0000 I CONTROL [initandlisten] options: { net: { bindIpAll: true } }
mongodb_1 | 2018-08-20T20:09:27.088+0000 W STORAGE [initandlisten] Detected unclean shutdown - /data/db/mongod.lock is not empty.
mongodb_1 | 2018-08-20T20:09:27.093+0000 I STORAGE [initandlisten] Detected data files in /data/db created by the 'wiredTiger' storage engine, so setting the active storage engine to 'wiredTiger'.
mongodb_1 | 2018-08-20T20:09:27.096+0000 W STORAGE [initandlisten] Recovering data from the last clean checkpoint.
mongodb_1 | 2018-08-20T20:09:27.097+0000 I STORAGE [initandlisten] wiredtiger_open config: create,cache_size=487M,session_max=20000,eviction= (threads_min=4,threads_max=4),config_base=false,statistics=(fast),log= (enabled=true,archive=true,path=journal,compressor=snappy),file_manager= (close_idle_time=100000),statistics_log=(wait=0),verbose= (recovery_progress),
api_1 |
api_1 | > api-boiler@0.1.0 start:dev /usr/src/api-boiler
api_1 | > cross-env NODE_ENV=development node server/server.js
api_1 |
api_1 | Started on port 3001
api_1 | (node:24) UnhandledPromiseRejectionWarning: MongoError: failed to connect to server [mongodb:27017] on first connect [MongoError: connect ECONNREFUSED 172.18.0.2:27017]
好的。 我已经解决了。 在此博客的帮助下 - https://dev.to/hugodias/wait-for-mongodb-to-start-on-docker-3h8b
您需要等待 mongod 在容器内完全启动。 docker-compose.yml 中的depend_on 键是不够的。
您还需要更新 Dockerfile 以利用 docker-compose-wait。
供参考 - 这是我更新的 docker-compose 和 Dockerfile 文件。
版本:'3.7'
services:
api:
build: ./
working_dir: /usr/src/api-boiler/
restart: always
environment:
PORT: 3001
MONGODB_URI: mongodb://mongodb:27017/TodoApp
JWT_SECRET: asdkasd9a9sdn2r3513032
ports:
- "3001:3001"
volumes:
- ./:/usr/src/api-boiler/
depends_on:
- mongodb
environment:
WAIT_HOSTS: mongodb:27017
mongodb:
image: mongo
container_name: mongodb
restart: always
volumes:
- 27017:27017
FROM node:10.8.0
WORKDIR /usr/src/api-boiler
COPY ./ ./
RUN npm install
EXPOSE 3001
## THE LIFE SAVER
ADD https://github.com/ufoscout/docker-compose- wait/releases/download/2.2.1/wait /wait
RUN chmod +x /wait
# CMD ["/bin/bash"]
CMD /wait && npm run start:dev
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