docker通过ZIP方式制作MongoDB镜像

---

概述

本文主要介绍如何通过mongodb的zip包打docker镜像

docker镜像需要的文件

DOCKERFILE

    #基础镜像使用ubuntu16.04
    FROM ubuntu:16.04

    #作者
    MAINTAINER BolingCavalry 

    #定义工作目录
    ENV WORK_PATH /usr/local/

    #定义mongodb文件夹名称

    #创建数据库文件目录
    RUN mkdir -p /data/db  /opt /data/logs /data/mongodata /data/configdb /logs

    ADD mongodb-linux-x86_64-rhel70-3.6.1.1.zip /opt
    COPY library.zip /usr/lib/

    #更新,把libssl.so.1.0.0装上，否则无法运行mongodb
    RUN apt-get update \
        && apt-get install -y zip \
        && apt-get install -y vim \
        #根据官方说明，此处必须升级libcurl3，根据不同的ubantu镜像，升级脚本不同，文中有官方路径说明
        && apt-get install -y libcurl3 openssl

    # 解压并将mongodb文件放到自定位置
    RUN set -x \
            && unzip /opt/mongodb-linux-x86_64-rhel70-3.6.1.1.zip -d /opt \
            && unzip /usr/lib/library.zip -d /usr/lib/ \
            && cp -rf /usr/lib/library/. /usr/lib/ \
            && rm -rf /usr/lib/library/ \
            && rm /usr/lib/library.zip \
            && mv /opt/mongodb-linux-x86_64-rhel70-3.6.1.1 /usr/local/mongodb \
            && rm -rf /opt/mongodb-linux-x86_64-rhel70-3.6.1.1.zip


    #把mongodb的bin目录加入到PATH环境变量中
    ENV PATH=$WORK_PATH/mongodb/bin:$PATH

    COPY mongod.conf /usr/local/mongodb/
    COPY docker-entrypoint.sh /usr/local/bin/
    COPY mongodb.sh /usr/local/bin/


    RUN ln -s usr/local/bin/docker-entrypoint.sh /entrypoint.sh \
        && ln -s usr/local/bin/mongodb.sh /mongodb.sh \
        && chmod a+x /usr/local/bin/*.sh \
        && chmod a+x /usr/local/mongodb/bin/* \
        && chmod a+x entrypoint.sh \
        && chmod a+x mongodb.sh

    ENTRYPOINT ["docker-entrypoint.sh"]

    #连接端口
    EXPOSE 27017

    #启动服务，--rest参数表示开启web服务
    CMD ["mongod", "--rest"]

entrypoint.sh

    #!/bin/bash

    stop_old_mongod()
    {
      mongodid=`ps -ef | grep mongod | grep -v grep | awk '{print $2}'`
      echo "pid is $mongodid"
      if [ -z "$mongodid" ]; then
            echo "old mongod is not running, do not need to kill mongod"
      else
            echo "old mongod is running at pid: $mongodid"
            echo "ready to kill $mongodid"
            kill $mongodid
            echo "kill mongod done"
      fi
    }



    check_remove_mongodlock()
    {
      if [ -f "/data/mongodata/mongod.lock" ]; then
            echo "mongod.lock is exist, remove it now"
            rm /data/mongodata/mongod.lock
      else
            echo "mongod.lock is not exist, you are ready to start mongo, now"
      fi

    }

    echo "checking mongod is running or not"
    stop_old_mongod
    echo "checking mongod.lock is exist or not."
    check_remove_mongodlock

    ./mongodb.sh start&

    echo "mongodb is started"

    sleep  30000000

mongodb.sh

    #!/bin/bash
    start()
    {
        /usr/local/mongodb/bin/mongod -repair --config /usr/local/mongodb/mongod.conf&
    }

    stop()
    {
        /usr/local/mongodb/bin/mongod --config /usr/local/mongodb/mongod.conf --shutdown&
    }
    case "$1" in
        start)
            start
        ;;
        stop)
            stop
        ;;
        restart)
            stop
            start
        ;;
        *)
            echo  $"Usage: $0 {start|stop|restart}"
        ;;
    esac
    exit 0

mongod.conf

    dbpath=/data/mongodata
    logpath=/data/logs/mongod.log
    port=27017
    fork=true
    journal=false
    storageEngine=mmapv1
    #此处不设置可能无法连接mongodb
    bind_ip_all=true

docker镜像打包注意事项

docker 相关文件放在同一个目录
Dockerfile、mongod.conf、mongodb.sh、library.zip,mongo的zip文件、entrypoint.sh
library.zip需要是因为ubantu系统的16.4镜像缺少ssllib.so.10包，需要手动添加，其下载地址如下
链接: https://pan.baidu.com/s/1qxxOmFpC56W414SYJBZCcg 提取码: 6tg8
docker 镜像如何打镜像请参看其他相关文档
docker build -t docke-image-name:tag . # 最后的’ .’ 是必须要的

rancher相关文件

docker-compose.yml

    version: '2'
    services:
      mongo-cluster:
        restart: always
        environment:
          MONGO_SERVICE_NAME: mongo-cluster
          CATTLE_SCRIPT_DEBUG: ${debug}
        # entrypoint: /opt/rancher/bin/entrypoint.sh
        command:
        - --replSet
        - "${replset_name}"
        image: 仓库名/alpine-mongodb:3.6
        labels:
          io.rancher.container.pull_image: always
          io.rancher.scheduler.affinity:container_label_ne: io.rancher.stack_service.name=$${stack_name}/$${service_name}
          io.rancher.scheduler.affinity:host_label: ${host_label}
          io.rancher.container.hostname_override: container_name
          io.rancher.sidekicks: mongo-base, mongo-datavolume
        volumes_from:
          - mongo-datavolume
          - mongo-base
        ports:
          - 27017:27017/tcp
      mongo-base:
        restart: always
        labels:
          io.rancher.scheduler.affinity:container_label_ne: io.rancher.stack_service.name=$${stack_name}/$${service_name}
          io.rancher.scheduler.affinity:host_label: ${host_label}
          io.rancher.container.hostname_override: container_name
          io.rancher.container.start_once: true
        image: rancher/mongodb-conf:v0.1.1
        stdin_open: true
        entrypoint: /bin/true
      mongo-datavolume:
        labels:
          io.rancher.scheduler.affinity:container_label_ne: io.rancher.stack_service.name=$${stack_name}/$${service_name}
          io.rancher.scheduler.affinity:host_label: ${host_label}
          io.rancher.container.hostname_override: container_name
          io.rancher.container.start_once: true
        volumes:
          - mongodata:/data/db
        entrypoint: /bin/true
        image: busybox
    volumes:
      mongodata:
        driver: ${VOLUME_DRIVER}

rancher-compose.yml

    version: '2'
    catalog:
      name: "MongoDB"
      version: "3.4-rancher1"
      description: "MongoDB Replica Set"
      uuid: mongodb-1
      minimum_rancher_version: v0.46.0
      questions:
        - variable: replset_name
          description: "Name of the MongoDB replicaSet"
          label: "ReplicaSet Name"
          type: "string"
          required: true
          default: "rs0"
        - variable: host_label
          label: "Host Label to MongoDB Tags"
          description: |
            Host label to use as MongoDB 'value' tag.
            Example: 'database'
          required: false
          type: "string"
        - variable: debug
          description: "Enable Debug log for Mongo containers"
          label: "Debug"
          type: "string"
          required: false
          default: ""
        - variable: "VOLUME_DRIVER"
          description: "The VOLUME driver to associate with this server"
          label: "VOLUME Driver"
          required: true
          default: "local"
          type: enum
          options:
            - local
            - rancher-nfs
            - rancher-efs
            - rancher-ebs
        - variable: mongo_scale
          description: "How many containers the MongoDB will scale to?"
          label: "mongo scale"
          type: "int"
          required: true
          default: "3"
    services:
      mongo-cluster:
        scale: ${mongo_scale}
        retain_ip: true
        metadata:
          mongo:
            yml:
              replset.name: "${replset_name}"

启动方式

启动将镜像文件放到镜像仓库中通过rancher启动即可

总结

整个过程中，最大的问题是解决ssllib.so.10包缺失问题，参看官方文档后发现，必须对ubantu16.4镜像进行ssl软件升级
官方地址-https://docs.mongodb.com/manual/tutorial/install-mongodb-on-ubuntu

也可以参考我的gitee地址
my-gitee

一盏灯， 一片昏黄； 一简书， 一杯淡茶。 守着那一份淡定， 品读属于自己的寂寞。 保持淡定， 才能欣赏到最美丽的风景！ 保持淡定， 人生从此不再寂寞。

---