Node.js 未处理的拒绝SequelizeConnectionRefusedError:将EconRefuse127.0.0.1:5432与dockers连接
我正在尝试为我的Postgres构建一个docker compose文件,它使用sequelize作为ORM()。这是我的docker-compose.ymlNode.js 未处理的拒绝SequelizeConnectionRefusedError:将EconRefuse127.0.0.1:5432与dockers连接,node.js,postgresql,docker,docker-compose,sequelize.js,Node.js,Postgresql,Docker,Docker Compose,Sequelize.js,我正在尝试为我的Postgres构建一个docker compose文件,它使用sequelize作为ORM()。这是我的docker-compose.yml version: "2" services: web: build: context : . dockerfile: Dockerfile image : testorganization ports: - "5000:5000" links: - db db: image: p
version: "2"
services:
web:
build:
context : .
dockerfile: Dockerfile
image : testorganization
ports:
- "5000:5000"
links:
- db
db:
image: postgres
expose:
- 5432
volumes:
- ./data/db:/data/db
environment:
POSTGRES_HOST: db
POSTGRES_DB: postgres
POSTGRES_USER: postgres
POSTGRES_PASS: admin
Dockerfile
FROM node:8-alpine
LABEL description="Docker file for organizations app"
RUN mkdir -p /var/www/logs/
RUN mkdir -p /logs/
RUN mkdir -p /usr/src/
WORKDIR /usr/src/
ADD package.json /usr/src/package.json
RUN npm install --production
COPY . .
CMD ["node", "index.js"]
下面是我的连接字符串
this.sequelize = new Sequelize( 'postgres','postgres','admin',{'host':'db', 'dialect': 'postgres',"define": { "createdAt": "createdat","updatedAt": "updatedat"}, 'operatorAliases': operatorsAliases} );
无论我做什么更改,它总是连接到127.0.0.1:5432,并得到以下错误:
web_1 | Unhandled rejection SequelizeConnectionRefusedError: connect ECONNREFUSED 127.0.0.1:5432
web_1 | at connection.connect.err (/usr/src/node_modules/sequelize/lib/dialects/postgres/connectionmanager.js:170:24)
web_1 | at Connection.connectingErrorHandler (/usr/src/node_modules/pg/lib/client.js:191:14)
web_1 | at emitOne (events.js:116:13)
web_1 | at Connection.emit (events.js:211:7)
web_1 | at Socket.reportStreamError (/usr/src/node_modules/pg/lib/connection.js:72:10)
web_1 | at emitOne (events.js:116:13)
web_1 | at Socket.emit (events.js:211:7)
web_1 | at emitErrorNT (internal/streams/destroy.js:66:8)
web_1 | at _combinedTickCallback (internal/process/next_tick.js:139:11)
web_1 | at process._tickCallback (internal/process/next_tick.js:181:9)
db
保留在连接字符串中,与docker compose文件中使用的引用相同谢谢index.js
const Sequelize = require('sequelize');
const sequelize = new Sequelize("postgres", "postgres", "admin", {
host: "db",
dialect: "postgres",
pool: {
max: 9,
min: 0,
idle: 10000
}
});
sequelize.authenticate().then(() => {
console.log("Success!");
}).catch((err) => {
console.log(err);
});
Dockerfile-与问题中相同
package.json
{
"name": "test",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
},
"keywords": [],
"author": "",
"license": "ISC",
"dependencies": {
"sequelize": "",
"pg": ""
}
}
docker-compose.yml(重写版本)
重要提示:如果您同时定义映像和Dockerfile以及build,则映像具有优先权,并且不会使用Dockerfile进行构建
version: "3.2"
services:
web:
build:
context : .
dockerfile: Dockerfile
networks:
- examplenetwork
ports:
- "5000:5000"
depends_on:
- db
db:
image: postgres
networks:
- examplenetwork
volumes:
- postgresql:/var/lib/postgresql
- postgresql_data:/var/lib/postgresql/data
environment:
- POSTGRES_DB=postgres
- POSTGRES_USER=postgres
- POSTGRES_PASS=admin
networks:
examplenetwork:
volumes:
postgresql:
postgresql_data:
index.js
const Sequelize = require('sequelize');
const sequelize = new Sequelize("postgres", "postgres", "admin", {
host: "db",
dialect: "postgres",
pool: {
max: 9,
min: 0,
idle: 10000
}
});
sequelize.authenticate().then(() => {
console.log("Success!");
}).catch((err) => {
console.log(err);
});
Dockerfile-与问题中相同
package.json
{
"name": "test",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
},
"keywords": [],
"author": "",
"license": "ISC",
"dependencies": {
"sequelize": "",
"pg": ""
}
}
docker-compose.yml(重写版本)
重要提示:如果您同时定义映像和Dockerfile以及build,则映像具有优先权,并且不会使用Dockerfile进行构建
version: "3.2"
services:
web:
build:
context : .
dockerfile: Dockerfile
networks:
- examplenetwork
ports:
- "5000:5000"
depends_on:
- db
db:
image: postgres
networks:
- examplenetwork
volumes:
- postgresql:/var/lib/postgresql
- postgresql_data:/var/lib/postgresql/data
environment:
- POSTGRES_DB=postgres
- POSTGRES_USER=postgres
- POSTGRES_PASS=admin
networks:
examplenetwork:
volumes:
postgresql:
postgresql_data:
您能否共享Dockerfile/source的最低版本以再现错误?请发布具体的错误消息。您能否共享一个示例代码来重现错误?目前,它指出了代码中的一个问题。在基础设施方面,容器之间的通信对我来说是有效的,上面的docker-compose.ymledite带有错误消息。过帐代码将太长,因此过帐连接字符串。如果我在主机中进行更改并直接运行应用程序,它会抛出一个正确的错误,称为ADDRESS not found。还有,在代码中是否需要使用任何环境变量?这就是为什么我要求使用示例代码。e、 g.仅db连接;)此外,package.json有助于了解您的依赖项。您可以共享Dockerfile/source的最低版本来重现错误吗?请发布具体的错误消息。您能否共享一个示例代码来重现错误?目前,它指出了代码中的一个问题。在基础设施方面,容器之间的通信对我来说是有效的,上面的docker-compose.ymledite带有错误消息。过帐代码将太长,因此过帐连接字符串。如果我在主机中进行更改并直接运行应用程序,它会抛出一个正确的错误,称为ADDRESS not found。还有,在代码中是否需要使用任何环境变量?这就是为什么我要求使用示例代码。e、 g.仅db连接;)此外,package.json有助于了解您的从属关系。这一行
image:testorganization
需要删除。看起来Docker将db
DNS名称解析为localhost
,因为您在Docker compose文件中使用了旧的链接
语法。我建议不要再使用链接
,而是在docker compose文件中定义一个网络。您可以阅读更多内容,需要删除这一行image:testorganization
。Docker似乎将db
DNS名称解析为localhost
,因为您在Docker compose文件中使用了旧的链接
语法。我建议不要再使用链接
,而是在docker compose文件中定义一个网络。你可以读更多的书