通过docker-compose和ansible，进行自动发版

发版应用机器多了，就偷个懒，简单做了个脚本通过docker实现同时发版

我准备一台服务器作为ansible控制台，将所有项目（下文脚本项目仅举例列举）所需的环境包准备好，通过脚本一键实现同一个项目所有服务器同时发版更新

主脚本如下：

#!/bin/bash

#Great by fanwanli04

function menu() {

    cat <<END

    1、casxx

    2、txtissap

    3、issap

    4、xxxap

END

}

function chose() {

echo "please input the project name"

read name

case "$name" in

    casxx | txtissap | issap)

        cd project/"$name"

        rm -rf tomcat.tar.gz

        tar -zcvf tomcat.tar.gz tomcat

        oldver=$(cat /opt/project/"$name"/id.id)

        echo "old version is $oldver"

        echo "please input a version"

        read answer

        docker build -t registry.xxx.xxx.com/"$name":"$answer" -f /opt/project/"$name"/Dockerfile /opt/project/"$name"

        docker push registry.xxx.xxx.com/"$name":"$answer"

        echo "$answer" > /opt/project/"$name"/id.id

        ;;

    xxxap)

        cd project/"$name"                \\这个是如果有项目特殊不一样的时候单独设置，这里都是复制上面的，仅示例而已

                rm -rf tomcat.tar.gz

                tar -zcvf tomcat.tar.gz tomcat

                echo "please input a version"

                read answer

               docker build -t registry.xxx.xxx.com/"$name":"$answer" -f /opt/project/"$name"/Dockerfile /opt/project/"$name"

               docker push registry.xxx.xxx.com/"$name":"$answer"

               ;;

    *)

        echo "this project name is wrong"

        exit;

esac

}

function implement() {

read -p "Which project to implement?" okanswer

/usr/bin/ansible "$okanswer" -a "docker-compose down"

/usr/bin/ansible "$okanswer" -a "docker rmi registry.xxx.xxx.com/$okanswer:$oldver"

/usr/bin/ansible "$okanswer" -a "docker pull registry.xxx.xxx.com/$okanswer:$answer"

sed -i "s/$okanswer:$oldver/$okanswer:$answer/g" /opt/project/"$okanswer"/docker-compose.yml

/usr/bin/ansible "$okanswer" -m copy -a "src=/opt/project/$okanswer/docker-compose.yml dest=/root/"

/usr/bin/ansible "$okanswer" -a "docker-compose up -d"

}

function main(){

    menu

    chose

    menu

    implement

}

main

在每个项目的目录中都有一个Dockerfile，示例如下

FROM registry.xxx.xxx.com/docker_centos7

LABEL "system"="casxx" "app"="AP"

MAINTAINER xxx <xxx@xxx.com>

USER root

ADD java.tar.gz /usr/local/

ADD tomcat.tar.gz /usr/local/

ENV JAVA_HOME /usr/local/java/

ENV JAVA_BIN=/usr/local/java/bin

ENV CLASSPATH=/usr/local/java/lib

ENV PATH=$PATH:$JAVA_HOME/bin

VOLUME ["/usr/local/tomcat/logs/"]

CMD /usr/local/tomcat/bin/startup.sh && tail -f /usr/local/tomcat/logs/catalina.out

EXPOSE 8080

以及一个docker-co
4000
mpose.yml，示例如下

version: '2'

services:

  casxx:

    image: registry.xxx.xxx.com/casxx:1.1

    ports:

      - "8080:8080"

    volumes:

      - /home/logs/tomcat/:/usr/local/tomcat/logs/

    dns:

      - "10.100.31.1"

并包含 Dockerfile 所需要的tomcat java等包