初始化码头化的mongo数据 [英] Initialize data on dockerized mongo
问题描述
我想用一些初始化数据创建一个mongo图像。
任何想法?
首先创建Docker卷
docker volume create --name mongostore
然后创建您的mongo容器
docker run -d --name mongo -v mongostore:/ data / db mongo:latest
这里的$ code> -v 开关负责安装卷 mongostore
在 / data / db
位置,这是mongo保存其数据的位置。卷是持久的(在主机上)。即使没有容器运行,您将看到您的mongostore卷列出了
docker volume ls
您可以杀死容器并创建一个新的(与上述相同的行),新的mongo容器将接收上一个容器的状态。
初始化卷
如果没有,Mongo将初始化新数据库。这是负责在mongostore中创建初始数据。假设您要使用预种子数据库创建一个全新的环境。问题成为如何在创建mongo容器之前将数据从本地环境(例如)传输到卷。我会列出两种情况。
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本地环境
你使用Docker for Mac / Windows或Docker Toolbox。在这种情况下,您可以轻松地将本地驱动器安装到临时容器中以初始化卷。例如:
docker run --rm -v / Users / myname / work / mongodb:/ incoming \
-v mongostore:/ data alpine:3.4 cp -rp / incoming / * / data
t为云存储工作。在这种情况下,您需要复制文件。
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远程环境(AWS,GCP,Azure,...)
这是一个很好的主意,tar /压缩的东西加快上传。
tar czf mongodata.tar .gz / Users / myname / work / mongodb
然后创建一个临时容器来解压缩并复制文件到蒙太子
tail -f / dev / null
只是确保容器不退出。docker run -d --name temp -v mongostore:/ data alpine:3.4 tail -f / dev / null
将文件复制到
docker cp mongodata.tar.gz temp:
解开并移动到卷
docker exec temp tar xzf mongodata.tar.gz&& cp -rp mongodb / * / data
清理
docker rm temp
您还可以将文件复制到远程主机并从那里安装,但我倾向于避免与远程主机进行交互。
免责声明。我从记忆中写下来(没有测试)。
I'm running a dockerized mongo container.
I'd like to create a mongo image with some initialized data.
Any ideas?
First create a docker volume
docker volume create --name mongostore
then create your mongo container
docker run -d --name mongo -v mongostore:/data/db mongo:latest
The -v
switch here is responsible for mounting the volume mongostore
at the /data/db
location, which is where mongo saves its data. The volume is persistent (on the host). Even with no containers running you will see your mongostore volume listed by
docker volume ls
You can kill the container and create a new one (same line as above) and the new mongo container will pick up the state of the previous container.
Initializing the volume Mongo initializes a new database if none is present. This is responsible for creating the initial data in the mongostore. Let's say that you want to create a brand new environment using a pre-seeded database. The problem becomes how to transfer data from your local environment (for instance) to the volume before creating the mongo container. I'll list two cases.
Local environment
You're using either Docker for Mac/Windows or Docker Toolbox. In this case you can easily mount a local drive to a temporary container to initialize the volume. Eg:
docker run --rm -v /Users/myname/work/mongodb:/incoming \ -v mongostore:/data alpine:3.4 cp -rp /incoming/* /data
This doesn't work for cloud storage. In that case you need to copy the files.
Remote environment (AWS, GCP, Azure, ...)
It's a good idea to tar/compress things up to speed the upload.
tar czf mongodata.tar.gz /Users/myname/work/mongodb
Then create a temporary container to untar and copy the files to the mongostore. the
tail -f /dev/null
just makes sure that the container doesn't exit.docker run -d --name temp -v mongostore:/data alpine:3.4 tail -f /dev/null
Copy files to it
docker cp mongodata.tar.gz temp:.
Untar and move to the volume
docker exec temp tar xzf mongodata.tar.gz && cp -rp mongodb/* /data
Cleanup
docker rm temp
You could also copy the files to the remote host and mounting from there but I tend to avoid interacting with the remote host at all.
Disclaimer. I'm writing this from memory (no testing).
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