Question

我正在尝试在我的应用程序旁边启动一个postgres数据库的docker img。

我想知道这是否与Linux兼容，因为我在Windows 10上运行docker吗？

当我运行命令时：docker-compose -f docker-compose-dev.yml up --build 我一路走到尽头，然后失败了：

Starting testdriven-app_users-db_1 ... done
Recreating testdriven-app_users_1  ... done
Attaching to testdriven-app_users-db_1, testdriven-app_users_1 users-db_1  | 2018-11-06 01:39:05.178 UTC [1] LOG:  listening on IPv4 address"0.0.0.0", port 5432
users-db_1  | 2018-11-06 01:39:05.178 UTC [1] LOG:  listening on IPv6 address "::", port 5432
users-db_1  | 2018-11-06 01:39:05.198 UTC [1] LOG:  listening on Unix socket "/var/run/postgresql/.s.PGSQL.5432"
users-db_1  | 2018-11-06 01:39:05.212 UTC [20] LOG:  database system was shut down at 2018-11-06 01:37:48 UTC
users-db_1  | 2018-11-06 01:39:05.216 UTC [1] LOG:  database system is ready to accept connections
users_1     | standard_init_linux.go:190: exec user process caused "no such file or directory"
testdriven-app_users_1 exited with code 1

这是我的yml文件：

version: "3.6"

services:
  users:
    build:
      context: ./services/users
      dockerfile: Dockerfile-dev
    volumes:
      - "./services/users:/usr/src/app"
    ports:
      - 5001:5000
    environment:
      - FLASK_APP=project/__init__.py
      - FLASK_ENV=development
      - APP_SETTINGS=project.config.DevelopmentConfig
      - DATABASE_URL=postgres://postgres:postgres@users-db:5432/users_dev
      - DATABASE_TEST=postgres://postgres:postgres@users-db:5432/users_test

    depends_on:
      - users-db

  users-db:
   build:
    context: ./services/users/project/db
    dockerfile: Dockerfile
   ports:
    - 5432:5432
   environment:
    - POSTGRES_USER=postgres
    - POSTGRES_PASSWORD=postgres

和我的docker文件：

FROM python:3.6.5-alpine

RUN apk update && \
    apk add --virtual build-deps gcc python-dev musl-dev && \
    apk add postgresql-dev && \
    apk add netcat-openbsd

RUN mkdir -p /usr/src/app
WORKDIR /usr/src/app

COPY ./requirements.txt /usr/src/app/requirements.txt
RUN pip install -r requirements.txt

COPY ./entrypoint.sh /usr/src/app/entrypoint.sh
RUN chmod +x /usr/src/app/entrypoint.sh

COPY . /usr/src/app

CMD ["/usr/src/app/entrypoint.sh"]

和随后的entrypoint.sh：

#!/bin/sh

echo "Waiting for postgres..."

while ! nc -z users-db 5432; do
    sleep 0.1
done

echo "PostgresSQL started"

python manage.py run --host 0.0.0.0

Answer 1

对我来说，解决方案是dos行尾字符与linux不同。我的Docker容器是一个Linux发行版，但Visual Studio代码在Windows上运行。如果转到右下角，则可以更改特定文件的EOL。我进入entrypoint.sh并将其从crlf更改为lf

postgres docker以代码1退出，并且exec用户进程导致“无此文件或目录”

1 个答案: