dockerfile构建自定义镜像(以python3.6为例)

实例-基于Centos7.6的Python3.6.8镜像

以centos7.6为基础镜像，构建带有python3.6.8的镜像

FROM centos:7.6.1810
ENV PATH $PATH:/usr/local/python3/bin/
ENV PYTHONIOENCODING utf-8
RUN set -ex \
	&& mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup \
	&& curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo \
	&& yum makecache \
	&& sed -i -e '/mirrors.cloud.aliyuncs.com/d' -e '/mirrors.aliyuncs.com/d' /etc/yum.repos.d/CentOS-Base.repo \
	&& yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gcc make wget \
	&& yum clean all \
	&& mkdir /usr/local/python3 \
	&& wget https://www.python.org/ftp/python/3.6.8/Python-3.6.8.tar.xz \
	&& tar -xvJf  Python-3.6.8.tar.xz && rm -f Python-3.6.8.tar.xz \
	&& cd Python-3.6.8 \
	&& ./configure prefix=/usr/local/python3 \
	&& make && make install \
	&& cd .. \
	&& rm -rf Python-3.6.8
CMD ["usr","bin","bash"]

实例-基于Centos7.6的scrapyd服务镜像

FROM centos:7.6.1810
WORKDIR /server
COPY . /server
ENV SCRAPYD_PORT 6800
RUN set -ex \
	&& yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gcc make wget \
	&& yum clean all \
	&& mkdir /usr/local/python3 \
	&& wget https://www.python.org/ftp/python/3.6.8/Python-3.6.8.tar.xz \
	&& tar -xvJf  Python-3.6.8.tar.xz && rm -f Python-3.6.8.tar.xz \
	&& cd Python-3.6.8 \
	&& ./configure prefix=/usr/local/python3 \
	&& make && make install \
	&& ln -s /usr/local/python3/bin/python3.6 /usr/local/bin/python3 \
	&& ln -s /usr/local/python3/bin/pip3 /usr/local/bin/pip3 \
	&& cd .. \
	&& rm -rf Python-3.6.8 \
	&& pip3 install -r requirements.txt \
	&& ln -s /usr/local/python3/bin/scrapyd /usr/local/bin/scrapyd \
	&& sed -i 's#127.0.0.1#0.0.0.0#g' /usr/local/python3/lib/python3.6/site-packages/scrapyd/default_scrapyd.conf
CMD ['scrapyd']

启动方式

docker run -d -p 6800:6800 image_id scrapyd

访问本机内网地址6800端口即可。

实例-基于Centos7.6的scrapyd服务镜像（可自定义端口）

FROM centos:7.6.1810
WORKDIR /server
COPY . /server
ENV SCRAPYD_PORT 6800
RUN set -ex \
	&& yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gcc make wget \
	&& yum clean all \
	&& mkdir /usr/local/python3 \
	&& wget https://www.python.org/ftp/python/3.6.8/Python-3.6.8.tar.xz \
	&& tar -xvJf  Python-3.6.8.tar.xz && rm -f Python-3.6.8.tar.xz \
	&& cd Python-3.6.8 \
	&& ./configure prefix=/usr/local/python3 \
	&& make && make install \
	&& ln -s /usr/local/python3/bin/python3.6 /usr/local/bin/python3 \
	&& ln -s /usr/local/python3/bin/pip3 /usr/local/bin/pip3 \
	&& cd .. \
	&& rm -rf Python-3.6.8 \
	&& pip3 install -r requirements.txt \
	&& ln -s /usr/local/python3/bin/scrapyd /usr/local/bin/scrapyd \
	&& sed -i 's#127.0.0.1#0.0.0.0#g' /usr/local/python3/lib/python3.6/site-packages/scrapyd/default_scrapyd.conf \
	&& echo '#!/bin/bash' >>runserver.sh \
	&& echo 'sed -i "s#6800#$SCRAPYD_PORT#g" /usr/local/python3/lib/python3.6/site-packages/scrapyd/default_scrapyd.conf' >>runserver.sh \
	&& echo 'scrapyd' >> runserver.sh
CMD ["bin","bash"]

启动方式，不指定SCRAPYD_PORT则默认为6800

docker run -d -e SCRAPYD_PORT=6999 -p 6999:6999 image_id /bin/bash runserver.sh

• SCRAPYD_PORT :scrapyd运行端口
• 6999:6999 :与宿主机的端口映射

其他参数

#设置工作目录
WORKDIR /app
#Copy the current directory contents into the container at /app
COPY . /app
#Make port 80 available to the world outside this container
EXPOSE 80
#Define environment variable
ENV NAME World