[英]Dockerfile Build Fails - Pipenv and Pyenv Multiple Versions of Python Found
[英]Dockerfile Run Python Pipenv Build Fails
學習如何 dockerize 應用程序,我遇到了一個障礙,我的 Dockerfile 構建失敗輸出:
app_1 | Traceback (most recent call last):
app_1 | File "app.py", line 4, in <module>
app_1 | from flask import Flask, render_template, request, json
app_1 | ModuleNotFoundError: No module named 'flask'
bucketlist-flask-mysql_app_1 exited with code 1
容器中的目錄結構為:
/應用程序
/app -> app.py Pipfile.lock
存儲庫中的目錄是
Dockerfile docker-compose.yml /src
/src -> Pipfile Pipfile.lock sql_scripts/FlaskApp/app.py
Dockerfile 是:
# alpine with py3.8 - reqd version of python for pipenv
from python:3.8-alpine
#EXPOSE port, default is 5000, app uses 5000
EXPOSE 5000
# create a directory to run the app in
WORKDIR /app
# install pip system-wide
RUN pip install pipenv
#move the files into /app
COPY src/Pipfile.lock /app
# add the application files
COPY src/FlaskApp /app
# run the application at launch
RUN pipenv install --ignore-pipfile
CMD ["pipenv", "run", "python3", "app.py"]
docker-compose 是:
version: "3"
services:
app:
build: .
links:
- db
ports:
- "5000:5000"
db:
image: mariadb
restart: always
ports:
- "32000:3306"
environment:
MYSQL_ROOT_PASSWORD: root
volumes:
- ./src/sql_scripts:/docker-entry-point-initdb.d/:ro
我已經做了很多迭代和故障排除。 如果我運行啟動 python:3.8-alpine 容器並手動復制 Pipfile.lock 和 app.py 我可以在 sh 中運行:
pip install pipenv
pipenv install --ignore-pipfile
pipenv run python3 app.py
當從 sh 手動運行應用程序構建並完美運行時,我目前最好的結論是進程可能同時運行並且不允許 pipenv 安裝完成執行?
作為參考,我相信 python 很好,但 app.py 的前 4 行是:
#!/bin/bash
"exec" "pipenv" "run" "python3" "$(pwd | sed 's?src.*?src/FlaskApp/app.py?g')"
#START: app.py code \/
from flask import Flask, render_template, request, jsom
Solution, After a lot of troubleshooting I solved the problem by purging my docker containers, the real solution is after a change in your docker files, you need to run docker-compose down
before running docker-compose up
. 我假設在關閉容器時涉及此過程並且不知道 docker-compose 關閉命令。
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