方法一、通过 dockerfile 构建

创建dockerfile

首先，创建目录mongo,用于存放后面的相关东西。

w3cschool@w3cschool:~$ mkdir -p ~/mongo  ~/mongo/db

db目录将映射为mongo容器配置的/data/db目录,作为mongo数据的存储目录

进入创建的mongo目录，创建dockerfile

from debian:wheezy

# add our user and group first to make sure their ids get assigned consistently, regardless of whatever dependencies get added
run groupadd -r mongodb && useradd -r -g mongodb mongodb

run apt-get update \
	&& apt-get install -y --no-install-recommends \
		numactl \
	&& rm -rf /var/lib/apt/lists/*

# grab gosu for easy step-down from root
env gosu_version 1.7
run set -x \
	&& apt-get update && apt-get install -y --no-install-recommends ca-certificates wget && rm -rf /var/lib/apt/lists/* \
	&& wget -o /usr/local/bin/gosu "https://github.com/tianon/gosu/releases/download/$gosu_version/gosu-$(dpkg --print-architecture)" \
	&& wget -o /usr/local/bin/gosu.asc "https://github.com/tianon/gosu/releases/download/$gosu_version/gosu-$(dpkg --print-architecture).asc" \
	&& export gnupghome="$(mktemp -d)" \
	&& gpg --keyserver ha.pool.sks-keyservers.net --recv-keys b42f6819007f00f88e364fd4036a9c25bf357dd4 \
	&& gpg --batch --verify /usr/local/bin/gosu.asc /usr/local/bin/gosu \
	&& rm -r "$gnupghome" /usr/local/bin/gosu.asc \
	&& chmod +x /usr/local/bin/gosu \
	&& gosu nobody true \
	&& apt-get purge -y --auto-remove ca-certificates wget

# gpg: key 7f0ceb10: public key "richard kreuter <richard@10gen.com>" imported
run apt-key adv --keyserver ha.pool.sks-keyservers.net --recv-keys 492eafe8cd016a07919f1d2b9ecbec467f0ceb10

env mongo_major 3.0
env mongo_version 3.0.12

run echo "deb http://repo.mongodb.org/apt/debian wheezy/mongodb-org/$mongo_major main" > /etc/apt/sources.list.d/mongodb-org.list

run set -x \
	&& apt-get update \
	&& apt-get install -y \
		mongodb-org=$mongo_version \
		mongodb-org-server=$mongo_version \
		mongodb-org-shell=$mongo_version \
		mongodb-org-mongos=$mongo_version \
		mongodb-org-tools=$mongo_version \
	&& rm -rf /var/lib/apt/lists/* \
	&& rm -rf /var/lib/mongodb \
	&& mv /etc/mongod.conf /etc/mongod.conf.orig

run mkdir -p /data/db /data/configdb \
	&& chown -r mongodb:mongodb /data/db /data/configdb
volume /data/db /data/configdb

copy docker-entrypoint.sh /entrypoint.sh
entrypoint ["/entrypoint.sh"]

expose 27017
cmd ["mongod"]

通过dockerfile创建一个镜像，替换成你自己的名字

w3cschool@w3cschool:~/mongo$ docker build -t mongo:3.2 .

创建完成后，我们可以在本地的镜像列表里查找到刚刚创建的镜像

w3cschool@w3cschool:~/mongo$ docker images  mongo:3.2
repository          tag                 image id            created             size
mongo               3.2                 282fd552add6        9 days ago          336.1 mb

方法二、docker pull mongo:3.2

查找docker hub上的mongo镜像

w3cschool@w3cschool:~/mongo$ docker search mongo
name                              description                      stars     official   automated
mongo                             mongodb document databases ...   1989      [ok]       
mongo-express                     web-based mongodb admin int...   22        [ok]       
mvertes/alpine-mongo              light mongodb container          19                   [ok]
mongooseim/mongooseim-docker      mongooseim server the lates...   9                    [ok]
torusware/speedus-mongo           always updated official mon...   9                    [ok]
jacksoncage/mongo                 instant mongodb sharded cluster  6                    [ok]
mongoclient/mongoclient           official docker image for m...   4                    [ok]
jadsonlourenco/mongo-rocks        percona mongodb with rocksd...   4                    [ok]
asteris/apache-php-mongo          apache2.4 + php + mongo + m...   2                    [ok]
19hz/mongo-container              mongodb replicaset for coreos    1                    [ok]
nitra/mongo                       mongo3 centos7                   1                    [ok]
ackee/mongo                       mongodb with fixed bluemix p...  1                    [ok]
kobotoolbox/mongo                 https://github.com/kobotoolb...  1                    [ok]
valtlfelipe/mongo                 docker image based on the la...  1                    [ok]

这里我们拉取官方的镜像,标签为3.2

w3cschool@w3cschool:~/mongo$ docker pull mongo:3.2

等待下载完成后，我们就可以在本地镜像列表里查到repository为mongo,标签为3.2的镜像。

使用mongo镜像

运行容器

w3cschool@w3cschool:~/mongo$ docker run -p 27017:27017 -v $pwd/db:/data/db -d mongo:3.2
cda8830cad5fe35e9c4aed037bbd5434b69b19bf2075c8626911e6ebb08cad51
w3cschool@w3cschool:~/mongo$

命令说明：

-p 27017:27017 :将容器的27017 端口映射到主机的27017 端口

-v $pwd/db:/data/db :将主机中当前目录下的db挂载到容器的/data/db，作为mongo数据存储目录

查看容器启动情况

w3cschool@w3cschool:~/mongo$ docker ps 
container id   image        command                   ...    ports                      names
cda8830cad5f   mongo:3.2    "/entrypoint.sh mongo"    ...    0.0.0.0:27017->27017/tcp   suspicious_goodall

使用mongo镜像执行mongo 命令连接到刚启动的容器,主机ip为172.17.0.1

w3cschool@w3cschool:~/mongo$ docker run -it mongo:3.2 mongo --host 172.17.0.1
mongodb shell version: 3.2.7
connecting to: 172.17.0.1:27017/test
welcome to the mongodb shell.
for interactive help, type "help".
for more comprehensive documentation, see
  http://docs.mongodb.org/
questions? try the support group
  http://groups.google.com/group/mongodb-user
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