基于alpine用dockerfile创建的爬虫Scrapy镜像的实现

[root@DockerBrian ~]# docker pull alpineUsing default tag: latestTrying to pull repository docker.io/library/alpine ...latest: Pulling from docker.io/library/alpine4fe2ade4980c: Pull completeDigest: sha256:621c2f39f8133acb8e64023a94dbdf0d5ca81896102b9e57c0dc184cadaf5528Status: Downloaded newer image for docker.io/alpine:latest[root@docker43 ~]# docker imagesREPOSITORY TAG IMAGE ID CREATED SIZEdocker.io/alpine latest 196d12cf6ab1 3 weeks ago 4.41 MB 

[root@DockerBrian ~]# mkdir /opt/alpineDockerfile/[root@DockerBrian ~]# cd /opt/alpineDockerfile/[root@DockerBrian alpineDockerfile]# mkdir scrapy && cd scrapy && touch Dockerfile[root@DockerBrian alpineDockerfile]# cd scrapy/[root@DockerBrian scrapy]# ll总用量 4-rw-r--r-- 1 root root 1394 10月 10 11:36 Dockerfile 

# 指定创建的基础镜像FROM alpine # 作者描述信息MAINTAINER alpine_python3_scrapy (zhujingzhi@123.com) # 替换阿里云的源RUN echo "http://mirrors.aliyun.com/alpine/latest-stable/main/" > /etc/apk/repositories && /  echo "http://mirrors.aliyun.com/alpine/latest-stable/community/" >> /etc/apk/repositories # 同步时间 # 更新源、安装openssh 并修改配置文件和生成key 并且同步时间RUN apk update && /  apk add --no-cache openssh-server tzdata && /  cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime && /  sed -i "s/#PermitRootLogin.*/PermitRootLogin yes/g" /etc/ssh/sshd_config && /  ssh-keygen -t rsa -P "" -f /etc/ssh/ssh_host_rsa_key && /  ssh-keygen -t ecdsa -P "" -f /etc/ssh/ssh_host_ecdsa_key && /  ssh-keygen -t ed25519 -P "" -f /etc/ssh/ssh_host_ed25519_key && /  echo "root:h056zHJLg85oW5xh7VtSa" | chpasswd # 安装Scrapy依赖包(必须安装的依赖包)RUN apk add --no-cache python3 python3-dev gcc openssl-dev openssl libressl libc-dev linux-headers libffi-dev libxml2-dev libxml2 libxslt-dev openssh-client openssh-sftp-server # 安装环境需要pip包(这里的包可以按照需求添加或者删除)RUN pip3 install --default-timeout=100 --no-cache-dir --upgrade pip setuptools pymysql pymongo redis scrapy-redis ipython Scrapy requests # 启动ssh脚本RUN echo "/usr/sbin/sshd -D" >> /etc/start.sh && /  chmod +x /etc/start.sh # 开放22端口EXPOSE 22 # 执行ssh启动命令CMD ["/bin/sh","/etc/start.sh"] 

[root@DockerBrian scrapy]# docker build -t scrapy_redis_ssh:v1 . 

[root@DockerBrian scrapy]# docker imagesREPOSITORY     TAG         IMAGE ID      CREATED       SIZEscrapy_redis_ssh  v1         b2c95ef95fb9    4 hours ago     282 MBdocker.io/alpine  latest       196d12cf6ab1    4 weeks ago     4.41 MB 

[root@DockerBrian scrapy]# docker psCONTAINER ID    IMAGE        COMMAND         CREATED       STATUS       PORTS          NAMES7fb9e69d79f5    b2c95ef95fb9    "/bin/sh /etc/star..."  3 hours ago     Up 3 hours     0.0.0.0:10086->22/tcp  scrapy10086 

[root@DockerBrian scrapy]# ssh root@127.0.0.1 -p 10086 The authenticity of host '[127.0.0.1]:10086 ([127.0.0.1]:10086)' can't be established.ECDSA key fingerprint is SHA256:wC46AU6SLjHyEfQWX6d6ht9MdpGKodeMOK6/cONcpxk.ECDSA key fingerprint is MD5:6a:b7:31:3c:63:02:ca:74:5b:d9:68:42:08:be:22:fc.Are you sure you want to continue connecting (yes/no)? yesWarning: Permanently added '[127.0.0.1]:10086' (ECDSA) to the list of known hosts.root@127.0.0.1's password:                                # 这里的密码就是dockerfile中定义的 echo "root:h056zHJLg85oW5xh7VtSa" | chpasswdWelcome to Alpine! The Alpine Wiki contains a large amount of how-to guides and generalinformation about administrating Alpine systems.See <http://wiki.alpinelinux.org>. You can setup the system with the command: setup-alpine You may change this message by editing /etc/motd. 7363738cc96a:~# 

7363738cc96a:~# scrapy startproject testNew Scrapy project 'test', using template directory '/usr/lib/python3.6/site-packages/scrapy/templates/project', created in:  /root/test You can start your first spider with:  cd test  scrapy genspider example example.com7363738cc96a:~# cd test/7363738cc96a:~/test# lsscrapy.cfg test7363738cc96a:~/test# cd test/7363738cc96a:~/test/test# ls__init__.py   __pycache__   items.py    middlewares.py pipelines.py  settings.py   spiders7363738cc96a:~/test/test#