Javascript 无法将节点docker容器连接到mongo docker容器
我得到这个错误:Javascript 无法将节点docker容器连接到mongo docker容器,javascript,node.js,mongodb,docker,networking,Javascript,Node.js,Mongodb,Docker,Networking,我得到这个错误: Server running... { MongoNetworkError: failed to connect to server [mongo:27017] on first connect [MongoNetworkError: getaddrinfo EAI_AGAIN mongo mongo:27017] at Pool.<anonymous> (/usr/src/app/node_modules/mongodb-core/lib/topologi
Server running...
{ MongoNetworkError: failed to connect to server [mongo:27017] on first connect [MongoNetworkError: getaddrinfo EAI_AGAIN mongo mongo:27017]
at Pool.<anonymous> (/usr/src/app/node_modules/mongodb-core/lib/topologies/server.js:562:11)
at Pool.emit (events.js:182:13)
at Connection.<anonymous> (/usr/src/app/node_modules/mongodb-core/lib/connection/pool.js:316:12)
at Object.onceWrapper (events.js:273:13)
at Connection.emit (events.js:182:13)
at Socket.<anonymous> (/usr/src/app/node_modules/mongodb-core/lib/connection/connection.js:245:50)
at Object.onceWrapper (events.js:273:13)
at Socket.emit (events.js:182:13)
at emitErrorNT (internal/streams/destroy.js:82:8)
at emitErrorAndCloseNT (internal/streams/destroy.js:50:3)
at process._tickCallback (internal/process/next_tick.js:63:19)
name: 'MongoNetworkError',
message:
'failed to connect to server [mongo:27017] on first connect [MongoNetworkError: getaddrinfo EAI_AGAIN mongo mongo:27017]',
errorLabels: [ 'TransientTransactionError' ],
[Symbol(mongoErrorContextSymbol)]: {} }
以下是我尝试从节点脚本连接的方式:
mongoose
.connect(
'mongodb://127.0.0.1:27017/test2',
{ useNewUrlParser: true }
)
.then(() => console.log('MongoDB Connected'))
.catch(err => console.log("errorErrorError"));
这是docker容器ls-a的输出
6f14a98e2d51 dockernodemongo_app "npm start" 11 minutes ago Up 11 minutes 0.0.0.0:3001->3000/tcp docker-node-mongo
f3fb55dad886 mongo "docker-entrypoint.s…" 24 minutes ago Up 24 minutes 127.0.0.1:27017->27017/tcp mongo
这是我如何从另一个docker-compose.yml文件运行mongo的:
mongo:
restart: always
image: mongo
container_name: mongo
network_mode: "bridge"
# expose:
# - 27017
volumes:
- ./mongo_data:/data/db
ports:
- "127.0.0.1:27017:27017"
您无法通过这种方式将应用程序连接到mongo
127.0.0.1
指的是容器的本地主机,而不是主机。您有两个选择:
- 创建一个容器并向其中添加两个容器。然后使用
到达mongo集装箱。Docker将使用服务名称作为主机,以便您可以通过该名称访问它mongodb://mongo:27017/test2
- 将mongo绑定到0.0.0.0(在端口声明中省略127.0.0.1),并使用网桥ip地址连接到数据库
version: '3.5'
services:
app:
container_name: docker-node-mongo
restart: always
build: .
ports:
- '3001:3000'
networks:
- mongo
networks:
mongo:
external: true
然后在mongo compose文件上:
version: '3.5'
services:
mongo:
restart: always
image: mongo
container_name: mongo
expose:
- 27017
volumes:
- ./mongo_data:/data/db
ports:
- "127.0.0.1:27017:27017"
networks:
- mongo
networks:
mongo:
name: mongo
然后在代码上:
mongoose
.connect(
'mongodb://mongo:27017/test2',
{ useNewUrlParser: true }
)
.then(() => console.log('MongoDB Connected'))
.catch(err => console.log("errorErrorError"));
编辑:更新的网络名称问题是,我运行的sharelatex需要mongo,我想运行的节点也需要mongo。因此,您建议运行2个mongo?@KTWorks实例,为什么会出现问题?您既可以在主机上发布端口,也可以创建网络,以便其他容器可以连接到该服务。确定。你说在主机上发布端口是安全问题?“您可以在主机上发布端口”是什么意思?2个mongo实例?我的意思是,使用27017:27017将绑定到主机上的0.0.0.0,如果您没有配置防火墙,任何人都可以从internet连接到mongo,这就是为什么我不建议使用该路径。我将用一个更完整的例子更新我的答案。你说的手是什么意思?自己的docker编写文件?
mongoose
.connect(
'mongodb://mongo:27017/test2',
{ useNewUrlParser: true }
)
.then(() => console.log('MongoDB Connected'))
.catch(err => console.log("errorErrorError"));