I try to dockerlized my own node application, but can't connect the mysql container. my codes:
docker-compose.yml
version: '3.2'
services:
node:
build: ./
ports:
- "8787:8787"
depends_on:
- db
networks:
- docker_xxx
environment:
- PORT=8787
- DATABASE_HOST=db
- DATABASE_PASSWORD=xxx
- EGG_SERVER_ENV=local
- NODE_ENV=development
# command: ["./wait-for-it.sh", "db:3306", "--", "npm run docker"]
db:
build: ./db
networks:
- docker_xxx
environment:
- MYSQL_ROOT_PASSWORD=xxx
- MYSQL_DATABASE=database
- MYSQL_USER=user
- MYSQL_PASSWORD=passwd
networks:
docker_xxx:
driver: bridge
./Dockerfile (for nodejs)
FROM node:8.9.4-alpine
RUN mkdir -p /usr/src/app
WORKDIR /usr/src/app
COPY package.json /usr/src/app/
RUN npm install --production
COPY . /usr/src/app
# COPY wait-for-it.sh /usr/src/app
EXPOSE 8787
CMD npm run docker
db/Dockerfile (for mysql)
FROM mysql:5.6
ADD honggang.sql /docker-entrypoint-initdb.d
config/config.default.js
config.mysql = {
// mysql settings
client: {
// host
host: process.env.DATABASE_HOST || '127.0.0.1',
// port
port: '3306',
// username
user: 'root',
// password
password: 'xxx',
database: 'xxx',
charset: 'utf8',
dialectOptions: {
collate: 'utf8_general_ci',
},
},
app: true,
agent: false,
};
I run docker-compose up -d , there's only db running.
I run docker logs hash to find errors, it shows the following info:
2018-04-30 14:43:51,334 ERROR 54 nodejs.ECONNREFUSEDError: connect ECONNREFUSED 172.19.0.2:3306
at Object._errnoException (util.js:1022:11)
at _exceptionWithHostPort (util.js:1044:20)
at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1182:14)
--------------------
at Protocol._enqueue (/usr/src/app/node_modules/mysql/lib/protocol/Protocol.js:145:48)
at Protocol.handshake (/usr/src/app/node_modules/mysql/lib/protocol/Protocol.js:52:23)
at PoolConnection.connect (/usr/src/app/node_modules/mysql/lib/Connection.js:130:18)
at Pool.getConnection (/usr/src/app/node_modules/mysql/lib/Pool.js:48:16)
at /usr/src/app/node_modules/ali-rds/node_modules/pify/index.js:29:7
at new Promise (<anonymous>)
at Pool.<anonymous> (/usr/src/app/node_modules/ali-rds/node_modules/pify/index.js:12:10)
at Pool.ret [as getConnection] (/usr/src/app/node_modules/ali-rds/node_modules/pify/index.js:56:34)
at Pool.query (/usr/src/app/node_modules/mysql/lib/Pool.js:202:8)
at /usr/src/app/node_modules/ali-rds/node_modules/pify/index.js:29:7
sql: select now() as currentTime;
code: 'ECONNREFUSED'
errno: 'ECONNREFUSED'
syscall: 'connect'
address: '172.19.0.2'
port: 3306
fatal: true
name: 'ECONNREFUSEDError'
pid: 54
hostname: d9cd95667a5d
I added CMD ping db, it responded.
I tried to use wait-for-it.sh (the code just commented out), but got the error info:
env: can't execute 'bash': No such file or directory