/bin/sh: sequelize: 當我嘗試使用 docker-compose 運行 express.js 應用程序時找不到

Question

我在用戶服務目錄的 Dockerfile 中有這個。

FROM node:15-alpine

COPY . /app

WORKDIR /app

RUN echo ">>>> $PWD"

RUN ls -lart

RUN yarn install

RUN ls -lart /app/node_modules/.bin

CMD yarn watch

當前目錄是預期的/app 。 Sequelize 二進制文件位於node_modules/.bin文件夾中。 /app/node_modules/.bin命令的結果是...

total 16
lrwxrwxrwx    1 root     root            21 Apr  9 18:35 uuid -> ../uuid/dist/bin/uuid
lrwxrwxrwx    1 root     root            30 Apr  9 18:35 sequelize-cli -> ../sequelize-cli/lib/sequelize
lrwxrwxrwx    1 root     root            30 Apr  9 18:35 sequelize -> ../sequelize-cli/lib/sequelize

這是docker-compose.yml ：

....

services:
  users-service:
    build: './users-service'
    depends_on:
      - users-service-db
    environment:
      - DB_URI=mysql://root:**********@users-service-db/users_db?charset=UTF8
    ports:
      - 7100:7100
    volumes:
      - ./users-service:/app
    networks:
      - autostop

  users-service-db:
    command: --default-authentication-plugin=mysql_native_password
    environment:
      - MYSQL_ROOT_PASSWORD=password
      - MYSQL_DATABASE=users_db
    restart: always  
    image: mysql:5.7.20
    ports:
      - 0.0.0.0:3306:3306
    networks:
      - autostop

...

當我運行docker-compose build或docker-compose up --build它顯示

$ yarn db:migrate && babel-watch -L src/index.js
users-service_1     | $ sequelize db:migrate
users-service_1     | /bin/sh: sequelize: not found

Answer 1

問題是，當您 map 卷時，即使是node_modules被主機文件夾覆蓋。 如果主機源代碼中沒有node_modules ，它將無法工作。 所以你想要的是屏蔽容器的node_modules文件夾，這樣它就不會受到主機文件夾 map 的影響

....

services:
  users-service:
    build: './users-service'
    depends_on:
      - users-service-db
    environment:
      - DB_URI=mysql://root:**********@users-service-db/users_db?charset=UTF8
    ports:
      - 7100:7100
    volumes:
      - ./users-service:/app
      - node_modules:/app/node_modules
    networks:
      - autostop

  users-service-db:
    command: --default-authentication-plugin=mysql_native_password
    environment:
      - MYSQL_ROOT_PASSWORD=password
      - MYSQL_DATABASE=users_db
    restart: always  
    image: mysql:5.7.20
    ports:
      - 0.0.0.0:3306:3306
    networks:
      - autostop
volumes:
  node_modules:
...

通過將其映射到命名卷，將確保內部文件夾不受外部主機映射文件夾的影響