第1章 概述

1.1 背景

之前的发布流程都是单节点，不具备扩展性，现在设计了可扩展的发布流程；发布流程分两个项目

Job_manager和pool

 

工作流程：

开发人员提交代码到Git版本仓库；

Jenkins人工/定时触发项目构建；

Jenkins拉取代码、代码编码、打包镜像、推送到镜像仓库；

Jenkins在Docker主机创建容器并发布。

现在的方案:

开发人员提交代码到VisualStudioTeamFoundationServer(tfs)版本仓库；

Jenkins人工/定时触发项目构建；

Jenkins拉取代码、代码编码,重启容器(容器挂载代码，提前启动好容器)

问题：

1打包镜像的过程不稳定，是在有外网的环境下，打包好之后上传镜像到环境中；

2在原有的环境下更新代码git pull ,过程更快点，但是开发人员有直接登陆服务器更改代码的习惯，git pull自动更新会产生问题；

3 想把容器作为一个主机管理提供给开发，pool容器应用官方容器不能安装openssh-server，其他均可以；

4 更新软件包需要手动加载；

5 业务量不大，现有的发布流程，是一个基于非docker环境的一个想法；以下的环境研究也是基于现有环境，做的多主机扩展流程；

1.2 Job_manager发布流程

利用ansible 实现多主机操作，因为考虑灰度发布，所以主机分组；

[root@honey1 cae_job_develop]# cat /etc/ansible/hosts

[develop]

*.*.*.*

*.*.*.*

*.*.*.*

[develop1]

*.*.*.*

[develop2]

*.*.*.*

*.*.*.*

发布总脚本

[root@honey1 cae_job_develop]# cat deploy_job.sh

#判断和创建锁文件是防止多人同时发布；

#!/bin/bash

if [ -f /tmp/deploy.lock ]

then

    echo "Somebody is Posting"

    exit

fi                                

touch /tmp/deploy.lock   

#日志记录功能

echo "`date` start deploy cae_job_manager" > /var/log/deploy_job.log

cd /www

#拉取代码

git clone http://*.cae_job_manager >/dev/null && echo "git clone cae_job_manager success" >>/var/log/deploy_job.log

#打包代码，代码中有许多遗留文件；保险起见只能完全打包，包括隐藏文件；

cd /www

zip -r cae_job_manager.zip cae_job_manager/ >/dev/null && echo "zip cae_job_manager.zip success" >>/var/log/deploy_job.log 

#发布代码到主机节点的过度位置

ansible develop -m copy -a "src=/www/cae_job_manager.zip dest=/tmp" >/dev/null && echo "copy cae_job_manager.zip success" >>/var/log/deploy_job.log 

#在一部分节点上删除原有代码

ansible develop1 -m file -a "path=/www/cae_job_manager state=absent" >/dev/null && echo "develop1 delete cae_job_manager success" >>/var/log/deploy_job.log

#发布代码到正式目录下

ansible develop1 -m command -a "unzip /tmp/cae_job_manager.zip -d /www" >/dev/null && echo "develop1 unzip cae_job_manager.zip success" >> /var/log/deploy_job.log

ansible develop1 -m script -a "/www/cae_job_develop/check.sh" && echo "develep1 checkout origin/develop success" >> /var/log/deploy_job.log

#发布环境配置文件 

ansible develop1 -m copy -a "src=/www/cae_job_develop/settings_local.py dest=/www/cae_job_manager/cae_job_manager/" && echo "develep1 cp settings_local.py success" >> /var/log/deploy_job.log 

#发布程序启动文件

ansible develop1 -m copy -a "src=/www/cae_job_develop/conf/ dest=/www/cae_job_manager/conf/" && echo "develop1 cp supervisor config success" >> /var/log/deploy_job.log

#重启容器，发布代码

ansible develop1 -m script -a "/www/cae_job_develop/boot_job.sh" && echo "develop1 reboot docker success" >> /var/log/deploy_job.log 

ansible develop2 -m file -a "path=/www/cae_job_manager state=absent" >/dev/null && echo "develop2 delete cae_job_manager success" >>/var/log/deploy_job.log

ansible develop2 -m command -a "unzip /tmp/cae_job_manager.zip -d /www" >/dev/null && echo "develop2 unzip cae_job_manager success" >>/var/log/deploy_job.log

ansible develop2 -m script -a "/www/cae_job_develop/check.sh" && echo "develep2 checkout origin/develop success" >> /var/log/deploy_job.log

ansible develop2 -m copy -a "src=/www/cae_job_develop/settings_local.py dest=/www/cae_job_manager/cae_job_manager/" && echo "develep2 cp settings_local.py success" >> /var/log/deploy_job.log

ansible develop2 -m copy -a "src=/www/cae_job_develop/conf/ dest=/www/cae_job_manager/conf/" && echo "develop2 cp supervisor config success" >> /var/log/deploy_job.log

ansible develop2 -m script -a "/www/cae_job_develop/boot_job.sh" && echo "develop2 reboot docker success" >> /var/log/deploy_job.log

#删除过度目录的文件

ansible develop -m file -a "path=/tmp/cae_job_manager.zip state=absent"

#删除发布节点的代码目录

/usr/bin/rm /www/cae_job_manager* -rf 

#删除发布锁文件

/usr/bin/rm /tmp/deploy.lock -f 

echo "`date` finish deploy cae_job_manager" >> /var/log/deploy_job.log

cat /var/log/deploy_job.log

[root@honey1 cae_job_develop]# cat check.sh

#!/bin/bash

cd /www/cae_job_manager/ && git pull

cd /www/cae_job_manager/ && git checkout origin/develop

[root@honey1 cae_job_develop]# ls

boot_job.sh  check.sh  conf  deploy_job.sh  settings_local.py

[root@honey1 cae_job_develop]# cat boot_job.sh

#!/bin/bash

chmod +x /www/cae_job_manager/docker_run.sh

for i in `docker ps |grep cae_job|awk '{print $NF}'`

do

   docker restart $i

done

conf里是supervisor的配置文件

[root@honey1 cae_job_develop]# ls conf/

cae_job_manager.conf  celery_beat.conf  celery_worker.conf  message_center.conf  scrapy_monitor.conf  visual_monitor.conf

思考：主机节点上的docker 容器相当于环境；代码挂载到容器上；有一些代码不常变视为一个服务；代码更新的主要是job_manager和pool;另外这个发布没有回滚步骤；开发有快速回滚分支，通过回滚分支回滚；

1.3 Pool部署

[root@honey1 pool_develop]# ls

boot_pool.sh  deploy_pool_1.sh  deploy_pool.sh  install  update_pool.sh

[root@honey1 pool_develop]# cat deploy_pool.sh

#!/bin/bash

sv1=develop1

sv2=develop2

if [ -f /tmp/pool.lock ]

then

    echo "Somebody is Posting"

    exit

fi

touch /tmp/pool.lock

#这个环境代码需要npm构建和bower构建保险起见，而且多主机构建过程时间较长；所以提前把代码放到部署环境中；通过git pull更新；

ansible $sv1 -m script -a "/www/pool_develop/update_pool.sh $sv1"

#这个环境代码应用后的数据，会存在部署的代码项目里；所以需要备份这部分数据

ansible $sv1 -m command -a "cp -a /app/pool/data /tmp"

#删除源代码

ansible $sv1 -m file -a "path=/app/pool state=absent"

#复制代码到正式目录下，然后构建代码；考虑到代码环境问题，没有先构建，在部署代码到节点环境；

ansible $sv1 -m script -a "/www/pool_develop/deploy_pool_1.sh $sv1"

#把备份的数据，放到指定的位置；

ansible $sv1 -m command -a "mv /tmp/data /app/pool/"

#重启应用程序；

ansible $sv1 -m script -a "/www/pool_develop/boot_pool.sh $sv1"

ansible $sv2 -m script -a "/www/pool_develop/update_pool.sh $sv2"

ansible $sv2 -m command -a "cp -a /app/pool/data /tmp"

ansible $sv2 -m file -a "path=/app/pool state=absent"

ansible $sv2 -m script -a "/www/pool_develop/deploy_pool_1.sh $sv2"

ansible $sv2 -m command -a "mv /tmp/data /app/pool/"

ansible $sv2 -m script -a "/www/pool_develop/boot_pool.sh $sv2"

#删除锁文件

rm /tmp/pool.lock -f

[root@honey1 pool_develop]# cat update_pool.sh

#!/bin/bash

echo "`date` $1 start deploy pool" > /var/log/deploy_pool.log

chattr -i /deploy/

cd /deploy/pool && git pull

cd /deploy/pool && git checkout origin/develop

cd /deploy/pool/poolui && npm install >/dev/null && echo "$1 deploy npm install success" >> /var/log/deploy_pool.log

cd /deploy/pool/poolui && bower install --allow-root >/dev/null && echo "$1 deploy bower install success" >> /var/log/deploy_pool.log

[root@honey1 pool_develop]# cat deploy_pool_1.sh

#!/bin/bash

cp -a /deploy/pool/ /app/

chattr +i /deploy/

chmod +x /app/pool/docker/*

cd /app/pool/poolui/ && npm install >/dev/null && echo "$1 app npm install success" >>/var/log/deploy_pool.log

cd /app/pool/poolui/ && bower install --allow-root >/dev/null && echo "$1 app bower install success" >>/var/log/deploy_pool.log

cd /app/pool/poolui/ && npm run build >/dev/null && echo "$1 app build success" >>/var/log/deploy_pool.log

[root@honey1 pool_develop]# cat boot_pool.sh

#!/bin/bash

for i in `docker ps |grep pool|awk '{print $NF}'`

do

    docker restart $i

done

if [ $? -eq 0 ]

then

    echo "`date` $1 pool docker reboot success" >> /var/log/deploy_pool.log

    cat /var/log/deploy_pool.log

fi

1.4 job_manager docker 化发布

Dockfile一键化的发布，网络原因，docker build 不稳定，有些步骤需外网；

root@honey1:/www# ls

cae_job_manager  cae_job_manager1  cae_job_manager.conf  Dockerfile  settings_local.py

root@honey1:/www# cat Dockerfile

FROM ubuntu:16.04

# Install packages

RUN apt-get update && apt-get install -y \

    libmysqlclient-dev \

    nginx \

    python-dev \

    python-mysqldb \

    python-setuptools \

    python-pip \

    python-lxml \

    openssh-server \

    net-tools \

    vim \

    git \

    lrzsz \

    supervisor

RUN apt-get install -y libxml2 libxml2-dev libxslt-dev

RUN apt-get -y install tzdata && \

  ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime

RUN mkdir -p /www/cae_job_manager

RUN mkdir /www/log

RUN mkdir /www/static

RUN mkdir /var/log/celery

RUN useradd celery

RUN pip install --upgrade pip

RUN pip install --upgrade setuptools

RUN pip install nltk

RUN pip install networkx

RUN pip install https://s3-us-west-2.amazonaws.com/jdimatteo-personal-public-readaccess/nltk-2.0.5-https-distribute.tar.gz

WORKDIR /www/

RUN git clone http://123:5000/tfs/DefaultCollection/CAE/\_git/cae\_job\_manager

WORKDIR /www/cae_job_manager

RUN git checkout origin/develop

ADD settings_local.py /www/cae_job_manager/cae_job_manager/

ADD cae_job_manager.conf /etc/supervisor/conf.d/

RUN pip install -r requirements.txt

RUN pip install uwsgi

RUN pip install pymysql

# Configure Nginx

RUN ln -s /www/cae_job_manager/conf/nginx_cae.conf /etc/nginx/sites-enabled/

RUN rm /etc/nginx/sites-enabled/default

# Run Supervisor (i.e., start MySQL, Nginx, and Gunicorn)

#CMD ["/usr/bin/supervisord","-n","-c","/etc/supervisor/supervisord.conf"]

#RUN chmod 777 docker_run.sh

#CMD ["sh", "docker_run.sh"]

ENTRYPOINT ["/www/cae_job_manager/docker_run.sh"]

登陆harbor,需要设置docker才能登陆

root@honey1:/etc/docker# cat daemon.json

{

  "registry-mirrors": ["http://hub-mirror.c.163.com"\],

  "insecure-registries":["192.168.138.111:8885"]

}

root@honey1:/etc/docker# docker login 192.168.138.111:8885

Username: admin

Password:

Login Succeeded

构想基础镜像[主要是构建环境，预先安装必要的安装包和创建必要的目录]，外网环境下；

root@honey1:/www# ls

cae_job_manager.conf  Dockerfile  DockerfileBase  DockerfileTest  requirements.txt  settings_local.py

root@honey1:/www# docker build -t cae_job_manager:test2 .

root@honey1:/www# docker tag cae_job_manager:test2 192.168.138.111:8885/ispider/cae_job_manager:base

root@honey1:/www# docker push 192.168.138.111:8885/ispider/cae_job_manager:base

root@honey1:/www# cat DockerfileBase

FROM ubuntu:16.04

# Install packages

RUN apt-get update && apt-get install -y \

    libmysqlclient-dev \

    nginx \

    python-dev \

    python-mysqldb \

    python-setuptools \

    python-pip \

    python-lxml \

    openssh-server \

    net-tools \

    vim \

    git \

    lrzsz \

    supervisor

RUN apt-get install -y libxml2 libxml2-dev libxslt-dev

RUN apt-get -y install tzdata && \

  ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime

#RUN mkdir -p /www/

RUN mkdir -p /www/log

RUN mkdir /www/static

RUN mkdir /var/log/celery

RUN useradd celery

RUN pip install --upgrade pip

RUN pip install --upgrade setuptools

RUN pip install nltk

RUN pip install networkx

RUN pip install https://s3-us-west-2.amazonaws.com/jdimatteo-personal-public-readaccess/nltk-2.0.5-https-distribute.tar.gz

#WORKDIR /www/

#RUN git clone http://123/tfs/DefaultCollection/CAE/\_git/cae\_job\_manager

#RUN git checkout origin/develop

#ADD settings_local.py /www/cae_job_manager/cae_job_manager/

ADD requirements.txt /www/

WORKDIR /www/

RUN pip install -r requirements.txt

RUN pip install uwsgi

RUN pip install pymysql

# Configure Nginx

#RUN ln -s /www/cae_job_manager/conf/nginx_cae.conf /etc/nginx/sites-enabled/

#RUN rm /etc/nginx/sites-enabled/default

# Run Supervisor (i.e., start MySQL, Nginx, and Gunicorn)

#CMD ["/usr/bin/supervisord","-n","-c","/etc/supervisor/supervisord.conf"]

#RUN chmod 777 docker_run.sh

#CMD ["sh", "docker_run.sh"]

#ENTRYPOINT ["/www/cae_job_manager/docker_run.sh"]

1. 从harbor加载基础镜像时间长；故提前加载好；

2. 构建发布docker

a.拉取代码

b.放置配置文件

c.更新python安装包

3. 删除旧的容器，运行新的容器实例；

root@inspur_spider07:/www# ls

cae_job_manager.conf   Dockerfile     settings_local.py

root@inspur_spider07:/www# docker build -t cae_job_manager:prod2 .

root@inspur_spider07:/www# cat Dockerfile

FROM 192.168.138.111:8885/ispider/cae_job_manager:base

# Install packages

WORKDIR /www/

RUN git clone http://123:5000/tfs/DefaultCollection/CAE/\_git/cae\_job\_manager

WORKDIR /www/cae_job_manager

RUN git checkout origin/develop

ADD settings_local.py /www/cae_job_manager/cae_job_manager/

ADD cae_job_manager.conf /etc/supervisor/conf.d/

RUN pip install -r requirements.txt

RUN pip install uwsgi

RUN pip install pymysql

# Configure Nginx

RUN ln -s /www/cae_job_manager/conf/nginx_cae.conf /etc/nginx/sites-enabled/

RUN rm /etc/nginx/sites-enabled/default

# Run Supervisor (i.e., start MySQL, Nginx, and Gunicorn)

#CMD ["/usr/bin/supervisord","-n","-c","/etc/supervisor/supervisord.conf"]

#RUN chmod 777 docker_run.sh

#CMD ["sh", "docker_run.sh"]

ENTRYPOINT ["/www/cae_job_manager/docker_run.sh"]

1.5 pool docker化发布

pool采用开源项目，它的官方镜像有许多限制，例如不能安装git,openssh,也就不能把其作为一个服务器节点管理；

Docker化的发布流程

拉取代码

cd /inspur/pool

git clone http://tfs.123:5000/tfs/DefaultCollection/CAE/_git/pool

git pull

git checkout origin/develop

放置本地配置文件cat /inspur/pool/pool_server/pool_server/settings_local.py     

编译代码cd /inspur/pool/poolui

sudo npm install

sudo bower install --allow-root

sudo npm run build

打包代码 cd /inspur/pool/

         Docker build -t pool:run .

运行容器 1.删除之前的运行容器；

         2.创建运行实例；

生产应用方案

拉取代码，放置配置文件，npm安装包，bower安装包 都提前做好，这些较耗费时间；

更新代码

cd /inspur/pool

git pull

git checkout origin/develop

cd /inspur/pool/poolui

sudo npm run build

docker 采用挂载的方式，应用程序；

设想方案

通过打包代替挂载，数据文件更新后丢失，但是能够更新python安装包；加载数据文件和代码项目在一块不合理；

利用挂载容器的方式，更新python安装包docker exec -it pool1 pip install -r /app/pool_server/requirements.txt；

root@honey1:/pool/pool# cat Dockerfile

FROM pool:h

ADD . /app

RUN ln -fs /app/nginx/* /etc/nginx/

RUN pip install -r /app/pool_server/requirements.txt

RUN ln -s /app/supervisord/supervisord.conf /etc/supervisor/

EXPOSE 9001

ENTRYPOINT ["/app/docker/entry"]

pool基础镜像

root@honey1:/pool# ls

Dockerfile  Dockerfile.s  pool  pool.tar.gz  requirements.txt

Requirements.txt 是pool 的项目安装包

root@honey1:/pool# cat Dockerfile

FROM scrapinghub/pool

WORKDIR /app

RUN apt-get update && apt-get install -y build-essential python-dev

RUN ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime

RUN pip install uwsgi

RUN pip install gevent

RUN pip install supervisor

RUN mkdir /etc/supervisor/

RUN mkdir /var/log/supervisor

RUN ln -s /usr/local/bin/supervisord /usr/bin/supervisord

RUN ln -s /usr/local/bin/supervisorctl /usr/bin/supervisorctl

ADD requirements.txt /root

RUN pip install -r /root/requirements.txt

#RUN mkdir /etc/supervisor/conf.d/

#RUN echo_supervisord_conf > /etc/supervisor/supervisord.conf

#RUN ln -s /app/supervisord/supervisord.conf /etc/supervisor/

EXPOSE 9001

#ENTRYPOINT ["/app/docker/entry"]

pool更新，要切换到项目里，宿主机要安装docker, nodejs, bower

root@honey1:/pool/pool# ls

bin      docker      Dockerfile_backup  LICENSE  nginx        pool_server  provision.sh  slybot  splash_utils  Vagrantfile

CHANGES  Dockerfile  docs               mytest   pool.conf  poolui       README.md     slyd    supervisord   VERSION

root@honey1:/pool/pool# cat Dockerfile

FROM pool:h

ADD . /app

RUN ln -fs /app/nginx/* /etc/nginx/

RUN pip install -r /app/pool_server/requirements.txt

RUN ln -s /app/supervisord/supervisord.conf /etc/supervisor/

EXPOSE 9001

ENTRYPOINT ["/app/docker/entry"]