[英]docker container runs from Dockerfile but not from docker-compose
我有以下 Dockerfile:
FROM python:3.8-slim
RUN apt-get update && \
apt-get install -y --no-install-recommends gcc libc-dev
WORKDIR /app
COPY . .
RUN pip install --no-cache-dir -r requirements.txt
CMD [ "python", "proxy-scraper-checker/main.py" ]
以及以下 docker-compose.yml:
version: "3.3"
services:
proxy-app:
build:
context: .
dockerfile: Dockerfile
container_name: proxy-app
environment:
- PYTHONUNBUFFERED=1
如果我以下列方式通過 docker cmd 手動運行 Dockerfile:
C:\Projects\myprojects\docker-example>docker build --tag my_app .
C:\Projects\myprojects\docker-example>docker run --rm -it my_app
一切似乎工作正常,我得到了它實際正在執行的應用程序 output 日志:
2020-05-30 13:38:53,454 - Thread-1 - INFO - Starting scheduler...
2020-05-30 13:38:55,457 - Thread-1 - INFO - Running job Every 2 seconds do run_pldown_job(<uvloop.Loop running=False closed=False debug=False>) (last run: [never], next run: 2020-05-30 13:38:55)
2020-05-30 13:38:55,457 - Thread-1 - INFO - Pldown Job starting...
80.187.140.26:8080 HTTPS Server/OS Error:
80.187.140.26:80 HTTP Server/OS Error:
146.148.59.22:80 HTTPS Server/OS Error:
89.216.39.217:4145 Error: Connection closed unexpectedly
185.49.93.102:4145 Error: Connection closed unexpectedly
80.240.250.222:4145 Error: Connection closed unexpectedly
185.123.2.170:1080 Error: Connection closed unexpectedly
但是,當我嘗試以下列方式通過 docker-compose 執行我的應用程序時:
C:\Projects\myprojects\docker-example>docker-compose up
我的應用程序似乎可以正常啟動,但它不會繼續執行。 下面是 output:
Creating proxy-app ... done
Attaching to proxy-app
proxy-app | 2020-05-30 13:28:02,638 - Thread-1 - INFO - Starting scheduler...
我嘗試執行 show logs 命令:
C:\Projects\myprojects\docker-example>docker logs proxy-app
但我得到的唯一日志是第一行:
2020-05-30 13:28:02,638 - Thread-1 - INFO - Starting scheduler...
有什么建議么?
我嘗試使用 docker 構建圖像:
docker build --tag my_app .
我在撰寫文件中使用了這張圖片:
version: "3.3"
services:
proxy-app:
image: my_app
它實際上是這樣工作的。
但是,問題仍然存在,為什么當我這樣做時它不起作用:
version: "3.3"
services:
proxy-app:
build:
context: .
dockerfile: Dockerfile
container_name: proxy-app
似乎我必須在 docker-compose 文件中為我的 python 應用程序添加一個卷,這樣我在那里所做的任何更改都會在我從 docker-compose 構建時實際反映出來。
所以我的新 docker-compose.yml 看起來像:
version: '3'
services:
db:
image: postgres:latest
container_name: postgres
environment:
- POSTGRES_DB=proxydb
- POSTGRES_USER=danny
- POSTGRES_PASSWORD=123
ports:
- "5432:5432"
volumes:
- ./init.sql:/docker-entrypoint-initdb.d/init.sql
proxy-app:
build: .
container_name: proxy-app
volumes:
- ./src:/src
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