多克尔 - compose.yaml:等待脚本覆盖默认CMD并退出泊坞容器
version: "3"
services:
mysql:
image: mysql:5.7
environment:
MYSQL_HOST: localhost
MYSQL_DATABASE: mydb
MYSQL_USER: mysql
MYSQL_PASSWORD: 1234
MYSQL_ROOT_PASSWORD: root
ports:
- "3307:3306"
expose:
- 3307
volumes:
- /var/lib/mysql
- ./mysql/migrations:/docker-entrypoint-initdb.d
restart: unless-stopped
web:
build:
context: .
dockerfile: web/Dockerfile
volumes:
- ./:/web
ports:
- "32768:3000"
environment:
NODE_ENV: development
PORT: 3000
links:
- mysql:mysql
depends_on:
- mysql
expose:
- 3000
command: ["./wait-for-it.sh", "mysql:3306", "--", "npm start"]
网络Dockerfile:
FROM node:6.11.2-slim
RUN mkdir -p /usr/src/app
WORKDIR /usr/src/app
COPY package.json /usr/src/app/
RUN npm install
COPY . /usr/src/app
CMD [ "npm", "start" ] # So this is overridden by the wait script and doesn't execute
我使用这个脚本等待: https://github.com/vishnubob/wait-for-it
的等待脚本可以正常工作,但它会覆盖Web容器的现有启动命令: CMD [ "npm", "start" ]
正如你可以在泊坞窗,撰写文件中看到我使用这种方法来揭开序幕NPM启动:
command: ["./wait-for-it.sh", "mysql:3306", "--", "npm start"]
我已经尝试了一些替代例如:
command: ["./wait-for-it.sh", "mysql:3306", "--", "CMD ['npm', 'start'"]
command: ["./wait-for-it.sh", "mysql:3306", "--", "docker-entrypoint.sh"]
只有它不起作用。我从Web容器中收到此错误: web_1 | ./wait-for-it.sh: line 174: exec: npm start: not found
这是怎么回事?
党!我很亲密。摆脱了Dockerfile中的CMD,并调整了docker-compose中的命令arg。完美的作品。谢谢! – ChrisRich