如何配置我的docker测试以在Travis CI上正确运行

Question

我的前端(Vuejs(和后端(django(都有不同的Dockerfile，还有两个docker-compose文件来运行它们的开发服务器和测试阶段。它们在我的机器上运行得很好。然而，当在Travis CI上运行测试构建时，它们会出错。

docker-compose.yml:

version: "3.4"
services:
database:
image: postgres:alpine
volumes:
- postgres_data:/var/lib/postgresql/data/
environment:
- POSTGRES_USER=user
- POSTGRES_PASSWORD=uni69204passwd
- POSTGRES_DB=uni-db
backend:
build: ./backend/
volumes:
- ./backend:/app
ports:
- "8000:8000"
depends_on:
- database
frontend:
build: ./frontend/
command: npm run dev
ports:
- "3000:3000"
volumes:
- ./frontend:/app
depends_on:
- database
- backend
volumes:
backend:
frontend:
postgres_data:

docker-compose.test.yml:

version: "3.4"
services:
cypress:
image: "cypress/included:3.4.0"
environment:
- CYPRESS_baseUrl=http://frontend:3000
working_dir: /testing
volumes:
- ./frontend/:/testing
entrypoint: "sh -c 'sleep 15; ./wait-for-it.sh frontend:3000 --strict -- cypress run'"
volumes:
cypress:

.travis.yml:

language: node_js
node_js:
- 14.8.0
services:
- docker
before_script:
- docker-compose run frontend sh -c "npm install"
script:
- docker-compose -f docker-compose.yml -f docker-compose.test.yml up --abort-on-container-exit
- docker-compose run --entrypoint "" backend pytest --flake8
notifications:
email: false

frontend/Dockerfile:

FROM node:lts-alpine
EXPOSE 3000
# Use `node` user that `node:lts-alpine` provides
RUN mkdir -p /app && chown -R node /app
USER node
WORKDIR /app

backend/Dockerfile:

FROM python:3.8.5-alpine
EXPOSE 8000
# install psycopg2, pillow and argon2_cffi dependencies
RUN apk update && apk add postgresql-dev gcc python3-dev musl-dev libffi-dev openssl-dev jpeg-dev zlib-dev
RUN mkdir -p /app && adduser -D -h /app -u 1000 python && chown -R python /app
WORKDIR /app
ENV SECRET_KEY=e75)h*54&*^&(secret-keyd+=^%mb0n 
SQL_USER=user 
SQL_PASSWORD=uni69204passwd 
SQL_HOST=database 
SQL_PORT=5432 
SQL_ENGINE=django.db.backends.postgresql 
SQL_DATABASE=uni-db 
PYTHONDONTWRITEBYTECODE=1 
PYTHONUNBUFFERED=1
COPY requirements.txt /tmp/requirements.txt
RUN pip install -r /tmp/requirements.txt
USER python
ENTRYPOINT [ "python", "manage.py", "runserver", "0.0.0.0:8000" ]

以下是我在测试构建过程中遇到的错误：

npm WARN checkPermissions Missing write access to /app
npm ERR! code EACCES
npm ERR! syscall access
npm ERR! path /app
npm ERR! errno -13
npm ERR! Error: EACCES: permission denied, access '/app'
npm ERR!  [Error: EACCES: permission denied, access '/app'] {
npm ERR!   errno: -13,
npm ERR!   code: 'EACCES',
npm ERR!   syscall: 'access',
npm ERR!   path: '/app'
npm ERR! }
npm ERR! 
npm ERR! The operation was rejected by your operating system.
npm ERR! It is likely you do not have the permissions to access this file as the current user
npm ERR! 
npm ERR! If you believe this might be a permissions issue, please double-check the
npm ERR! permissions of the file and its containing directories, or try running
npm ERR! the command again as root/Administrator.
npm ERR! A complete log of this run can be found in:
npm ERR!     /home/node/.npm/_logs/2020-09-15T18_05_28_175Z-debug.log

Answer 1

在前端Dockerfile中，当创建/app目录后使用chown时，请尝试在用户名后添加:。

即

RUN mkdir -p /app && chown -R node: /app

这将为用户和组node选择/app。

也可能是您在docker compose文件中使用- ./frontend:/app卷定义覆盖了它。