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ruby-on-rails - 使用 docker for rails 运行 db 迁移时出错

问题描述

我正在尝试按照教程为 Vue.js 和 rails API 设置开发环境。

最终我在尝试运行以下命令时遇到了障碍：

docker-compose run backend rails db:create

这是错误：

$ docker-compose run backend rails db:create
Starting am-full-stack_db_1_b7f6ee37d2e4 ... done
Error response from daemon: OCI runtime create failed: 
container_linux.go:348: starting container process caused "exec: 
\"rails\": executable file not found in $PATH": unknown

这是我的文件树

应用程序

认证后端

认证前端

码头工人-compose.yml

这是我的 docker-compose.yml

version: '3'
services:
  db:
    image: postgres
    ports:
      - "5432"
  backend:
    build:
      context: autheg-backend
      args:
        UID: ${UID:-1001}
    volumes:
      - ./autheg-backend:/usr/src/app
    ports:
      - "8080:8080"
    depends_on:
      - db
    user: rails
  frontend:
    build:
      context: autheg-frontend
      args:
        UID: ${UID:-1001}
    volumes:
      - ./autheg-frontend:/usr/src/app
    ports:
      - "3000:3000"
    user: frontend

'docker-compose run backend env' 的结果

PATH=/usr/local/bundle/bin:/usr/local/bundle/gems/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
HOSTNAME=c88e0c72c584
TERM=xterm
RUBY_MAJOR=2.5
RUBY_VERSION=2.5.3
RUBY_DOWNLOAD_SHA256=1cc9d0359a8ea35fc6111ec830d12e60168f3b9b305a3c2578357d360fcf306f
RUBYGEMS_VERSION=2.7.8
BUNDLER_VERSION=1.17.1
GEM_HOME=/usr/local/bundle
BUNDLE_PATH=/usr/local/bundle
BUNDLE_SILENCE_ROOT_WARNING=1
BUNDLE_APP_CONFIG=/usr/local/bundle
APP=/usr/src/app
HOME=/home/rails

谢谢！

标签： ruby-on-railsmacosdocker

解决方案

做数据库迁移使用：

docker-compose run backend bin/rails db:create
# or
docker-compose run backend bundle exec rails db:create

/后端/Dockerfile

FROM ruby:2.5

ARG UID
RUN adduser rails --uid $UID --disabled-password --gecos ""

ENV APP /usr/src/app
RUN mkdir $APP
WORKDIR $APP

COPY Gemfile* $APP/
RUN bundle install -j3 --path vendor/bundle

COPY . $APP/

# Setting env up
ENV RAILS_ENV='development'
ENV RACK_ENV='development'

CMD [ "bundle", "exec", "rails", "server", "-p", "8080", "-b", "0.0.0.0"]

./docker-compose.yml

version: '3'
services:
  db:
    image: postgres
    ports:
      - "5432"
  backend:
    build:
      context: autheg-backend
      args:
        UID: ${UID:-1001}
    command: bundle exec rails s -p 8080 -b '0.0.0.0'
    volumes:
      - ./autheg-backend:/usr/src/app
    ports:
      - "8080:8080"
    depends_on:
      - db
    user: rails
  frontend:
    build:
      context: autheg-frontend
      args:
        UID: ${UID:-1001}
    volumes:
      - ./autheg-frontend:/usr/src/app
    ports:
      - "3000:3000"
    user: frontend

然后

docker-compose up

现在您应该能够使用以下命令查看 rails 站点：localhost:8080（而不是 3000）

希望能帮助您入门

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