报错如下：
$ docker-compose up
/usr/local/lib/python3.8/dist-packages/requests/__init__.py:102: RequestsDependencyWarning: urllib3 (2.2.0) or chardet (3.0.4)/charset_normalizer (2.0.12) doesn't match a supported version!warnings.warn("urllib3 ({}) or chardet ({})/charset_normalizer ({}) doesn't match a supported "
Traceback (most recent call last):File "/usr/local/bin/docker-compose", line 8, in <module>sys.exit(main())File "/home/local/EUROPRO/pca_yanyan/.local/lib/python3.8/site-packages/compose/cli/main.py", line 81, in maincommand_func()File "/home/local/EUROPRO/pca_yanyan/.local/lib/python3.8/site-packages/compose/cli/main.py", line 200, in perform_commandproject = project_from_options('.', options)File "/home/local/EUROPRO/pca_yanyan/.local/lib/python3.8/site-packages/compose/cli/command.py", line 60, in project_from_optionsreturn get_project(File "/home/local/EUROPRO/pca_yanyan/.local/lib/python3.8/site-packages/compose/cli/command.py", line 152, in get_projectclient = get_client(File "/home/local/EUROPRO/pca_yanyan/.local/lib/python3.8/site-packages/compose/cli/docker_client.py", line 41, in get_clientclient = docker_client(File "/home/local/EUROPRO/pca_yanyan/.local/lib/python3.8/site-packages/compose/cli/docker_client.py", line 124, in docker_clientkwargs = kwargs_from_env(environment=environment, ssl_version=tls_version)
TypeError: kwargs_from_env() got an unexpected keyword argument 'ssl_version'
这个报错有两个点需要解决的：
1. 错误1是：
/usr/local/lib/python3.8/dist-packages/requests/__init__.py:102: RequestsDependencyWarning: urllib3 (2.2.0) or chardet (3.0.4)/charset_normalizer (2.0.12) doesn't match a supported version!
warnings.warn("urllib3 ({}) or chardet ({})/charset_normalizer ({}) doesn't match a supported "
我的docker是用的sudo安装的，而docker-compose是虚拟环境内安装的.通过whereis docker-compose 查看路径，只在/usr/local/bin/docker-compose目录下生成，而 /usr/bin/docker-compose没有
cp命令将docker-compose复制过去就可以了
$ whereis docker-compose
docker-compose: /usr/local/bin/docker-compose /home/local/EUROPRO/pca_yy/.myvirtualenv/py38/bin/docker-compose
$ sudo cat /etc/sudoers
[sudo] EUROPRO\pca_yanyan 的密码：
#
# This file MUST be edited with the 'visudo' command as root.
#
# Please consider adding local content in /etc/sudoers.d/ instead of
# directly modifying this file.
#
# See the man page for details on how to write a sudoers file.
#
Defaults env_reset
Defaults mail_badpass
Defaults secure_path="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/bin"# Host alias specification# User alias specification# Cmnd alias specification# User privilege specification
root ALL=(ALL:ALL) ALL# Members of the admin group may gain root privileges
%admin ALL=(ALL) ALL# Allow members of group sudo to execute any command
%sudo ALL=(ALL:ALL) ALL
EUROPRO\\PCASudoers ALL=(ALL) ALL
zyy ALL=(ALL) ALL# See sudoers(5) for more information on "#include" directives:#includedir /etc/sudoers.d
EUROPRO\\pca_zyy ALL=(ALL) ALL执行一下这句
$ sudo cp -r /usr/local/bin/docker-compose /usr/bin/docker-compose
2.错误2是：
是urllib3 chardet 的版本不一致造成的
$ docker-compose --version
/usr/local/lib/python3.8/dist-packages/requests/__init__.py:102: RequestsDependencyWarning: urllib3 (2.2.0) or chardet (3.0.4)/charset_normalizer (2.0.12) doesn't match a supported version!warnings.warn("urllib3 ({}) or chardet ({})/charset_normalizer ({}) doesn't match a supported "
docker-compose version 1.29.2, build unknown
sudo pip3 uninstall urllib3 chardet
sudo pip3 install --upgrade requests
用sudo方式执行上面红色的两行命令，切换依赖的版本后，顺利解决，看下：
$ sudo docker-compose --version
docker-compose version 1.29.2, build unknown3.结果build的时候还报了错：
$ sudo docker-compose up --build
Traceback (most recent call last):File "/usr/local/bin/docker-compose", line 8, in <module>sys.exit(main())File "/usr/local/lib/python3.8/dist-packages/compose/cli/main.py", line 81, in maincommand_func()File "/usr/local/lib/python3.8/dist-packages/compose/cli/main.py", line 200, in perform_commandproject = project_from_options('.', options)File "/usr/local/lib/python3.8/dist-packages/compose/cli/command.py", line 60, in project_from_optionsreturn get_project(File "/usr/local/lib/python3.8/dist-packages/compose/cli/command.py", line 152, in get_projectclient = get_client(File "/usr/local/lib/python3.8/dist-packages/compose/cli/docker_client.py", line 41, in get_clientclient = docker_client(File "/usr/local/lib/python3.8/dist-packages/compose/cli/docker_client.py", line 124, in docker_clientkwargs = kwargs_from_env(environment=environment, ssl_version=tls_version)
TypeError: kwargs_from_env() got an unexpected keyword argument 'ssl_version'执行以下命令
$ sudo pip3 install pyyaml==5.3.1
$ sudo pip3 install docker
$ sudo pip3 install docker-compose
最后用最简单的flaskdemo验证一下，浏览器访问 http://127.0.0.1:5000正常 完美解决！
$ sudo docker-compose up --build
/usr/local/lib/python3.5/site-packages/paramiko/transport.py:33: CryptographyDeprecationWarning: Python 3.5 support will be dropped in the next release of cryptography. Please upgrade your Python.from cryptography.hazmat.backends import default_backend
Building web
[+] Building 4.7s (9/9) FINISHED docker:default=> [internal] load build definition from dockerfile 0.0s=> => transferring dockerfile: 159B 0.0s=> [internal] load metadata for docker.io/library/python:3.5 0.0s=> [internal] load .dockerignore 0.0s=> => transferring context: 2B 0.0s=> [1/4] FROM docker.io/library/python:3.5 0.0s=> [internal] load build context 0.0s=> => transferring context: 564B 0.0s=> CACHED [2/4] RUN apt-get -y update 0.0s=> [3/4] COPY . . 0.0s=> [4/4] RUN pip3 install -r requirements.txt 4.5s=> exporting to image 0.1s=> => exporting layers 0.1s=> => writing image sha256:fbbfa0243e8dcde522e5e2defb0f3eb986bcd077e0695e343ba0e17626df2b32 0.0s => => naming to docker.io/library/application_web 0.0s
Successfully built fbbfa0243e8dcde522e5e2defb0f3eb986bcd077e0695e343ba0e17626df2b32
Recreating application_web_1 ... done
Attaching to application_web_1
web_1 | * Serving Flask app "app" (lazy loading)
web_1 | * Environment: production
web_1 | WARNING: This is a development server. Do not use it in a production deployment.
web_1 | Use a production WSGI server instead.
web_1 | * Debug mode: on
web_1 | * Running on http://0.0.0.0:5000/ (Press CTRL+C to quit)
web_1 | * Restarting with stat
web_1 | * Debugger is active!
web_1 | * Debugger PIN: 245-125-106
web_1 | 172.18.0.1 - - [05/Feb/2024 05:30:08] "GET / HTTP/1.1" 200 -
web_1 | 172.18.0.1 - - [05/Feb/2024 05:30:08] "GET /favicon.ico HTTP/1.1" 404 -
^Z
[6]+ 已停止 sudo docker-compose up --build
补充：
flask验证代码如下：
层级
application （此文件夹是项目根目录）
docker-compose.yml （application的子文件）
web （此文件夹是application的子文件夹）
app.py dockerfile requirements.txt （web的子文件）
$ mkdir application
$ cd application
application$ mkdir web
application$ cd web
application/web$ vi app.py
from flask import Flaskapp = Flask(__name__)@app.route('/')
def nhooo():return "Welcome to nhooo"if __name__ == '__main__':
#call the run methodapp.run(debug=True,host='0.0.0.0')
application/web$ vi dockerfile （提示：此处python：3.5镜像可能需要自己去拉取 sudo docker pull python:3.5）
FROM python:3.5
RUN apt-get -y update
COPY . .
RUN pip3 install -r requirements.txt
ENTRYPOINT ["python3"]
CMD ["app.py"]application/web$ vi requirements.txt
flaskapplication/web$ cd ..
application$ vi docker-compose.yml
version: '3'services:web:build: ./webports:- "5000:5000"写好了之后，sudo docker-compose up --build 启动。
)
