Docker 安装 Python

Docker 安装 Python方法一、docker pull python:





3.5查找Docker Hub上的python镜像k88@k88:





~/python$ docker search pythonNAME DESCRIPTION STARS OFFICIAL AUTOMATEDpython Python is an interpreted,... 982 [OK] kaggle/python Docker image for Python... 33 [OK]azukiapp/python Docker image to run Python ... 3 [OK]vimagick/python mini python 2 [OK]tsuru/python Image for the Python ... 2 [OK]pandada8/alpine-python An alpine based python image 1 [OK]1science/python Python Docker images based on ... 1 [OK]lucidfrontier45/python-uwsgi Python with uWSGI 1 [OK]orbweb/python Python image 1 [OK]pathwar/python Python template for Pathwar levels 1 [OK]rounds/10m-python Python, setuptools and pip. 0 [OK]ruimashita/python ubuntu 14.04 python 0 [OK]tnanba/python Python on CentOS-7 image. 0 [OK]这里我们拉取官方的镜像,标签为3.5k88@k88:





~/python$ docker pull python:





3.5等待下载完成后，我们就可以在本地镜像列表里查到REPOSITORY为python,标签为3.5的镜像。k88@k88:





~/python$ docker images python:





3.5 REPOSITORY TAG IMAGE ID CREATED SIZEpython 3.5 045767ddf24a 9 days ago 684.1 MB方法二、通过 Dockerfile 构建创建Dockerfile首先，创建目录python,用于存放后面的相关东西。k88@k88:





~$ mkdir -p ~/python ~/python/myappmyapp目录将映射为python容器配置的应用目录进入创建的python目录，创建DockerfileFROM buildpack-deps:





jessie





# remove several traces of debian pythonRUN apt-get purge -y python.*





# http:





//bugs.python.org/issue19846





# > At the moment, setting "LANG=C" on a Linux system *fundamentally breaks Python 3*, and that's not OK.ENV LANG C.UTF-8





# gpg:





key F73C700D:





public key "Larry Hastings <larry@hastings.org>" importedENV GPG_KEY 97FC712E4C024BBEA48A61ED3A5CA953F73C700DENV PYTHON_VERSION 3.5.1





# if this is called "PIP_VERSION", pip explodes with "ValueError:





invalid truth value '<VERSION>'"ENV PYTHON_PIP_VERSION 8.1.2RUN set -ex \ && curl -fSL "https:





//www.python.org/ftp/python/${PYTHON_VERSION%%[a-z]*}/Python-$PYTHON_VERSION.tar.xz" -o python.tar.xz \ && curl -fSL "https:





//www.python.org/ftp/python/${PYTHON_VERSION%%[a-z]*}/Python-$PYTHON_VERSION.tar.xz.asc" -o python.tar.xz.asc \ && export GNUPGHOME="$(mktemp -d)" \ && gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$GPG_KEY" \ && gpg --batch --verify python.tar.xz.asc python.tar.xz \ && rm -r "$GNUPGHOME" python.tar.xz.asc \ && mkdir -p /usr/src/python \ && tar -xJC /usr/src/python --strip-components=1 -f python.tar.xz \ && rm python.tar.xz \ \ && cd /usr/src/python \ && ./configure --enable-shared --enable-unicode=ucs4 \ && make -j$(nproc) \ && make install \ && ldconfig \ && pip3 install --no-cache-dir --upgrade --ignore-installed pip==$PYTHON_PIP_VERSION \ && find /usr/local -depth \ \( \ \( -type d -a -name test -o -name tests \) \ -o \ \( -type f -a -name '*.pyc' -o -name '*.pyo' \) \ \) -exec rm -rf '{}' + \ && rm -rf /usr/src/python ~/.cache





# make some useful symlinks that are expected to existRUN cd /usr/local/bin \ && ln -s easy_install-3.5 easy_install \ && ln -s idle3 idle \ && ln -s pydoc3 pydoc \ && ln -s python3 python \ && ln -s python3-config python-configCMD ["python3"]通过Dockerfile创建一个镜像，替换成你自己的名字k88@k88:





~/python$ docker build -t python:





3.5 .创建完成后，我们可以在本地的镜像列表里查找到刚刚创建的镜像k88@k88:





~/python$ docker images python:





3.5 REPOSITORY TAG IMAGE ID CREATED SIZEpython 3.5 045767ddf24a 9 days ago 684.1 MB使用python镜像在~/python/myapp目录下创建一个 helloworld.py 文件，代码如下：





#!/usr/bin/pythonprint("Hello, World!");运行容器k88@k88:





~/python$ docker run -v $PWD/myapp:





/usr/src/myapp -w /usr/src/myapp python:





3.5 python helloworld.py命令说明：-v $PWD/myapp:





/usr/src/myapp :





将主机中当前目录下的myapp挂载到容器的/usr/src/myapp-w /usr/src/myapp :





指定容器的/usr/src/myapp目录为工作目录python helloworld.py :





使用容器的python命令来执行工作目录中的helloworld.py文件输出结果：Hello, World!