synctree/ec2-consistent-snapshot repository overview

⁠Ec2 Consistent Snapshot

How to take an ec2 consistent snapshot of a mongodb database on an amazonaws ubuntu instance using docker.

⁠1. Create an AWS ubuntu instance

• go to the AWS console on the web browser
• click on EC2 then instances and click on Launch Instance
• create an instance based on Ubuntu 13 or 14
• pass #include https://get.docker.io⁠ to the userdata
• download .pem file and follow aws instructions to finish creating the instance

⁠2. Getting Started With Docker

• ssh into the ubuntu instance with the .pem file, your username and public dns

ssh -i key-pair.pem [email protected]

• become the root user

sudo su

• use docker to pull and run the mongodb image

docker run --name sync_mongo -d mongo

• now run the ec2-consistent-snapshot image and connect it to the mongo container with the following command

docker run -it -e AWS_ACCESS_KEY_ID=accesskey -e AWS_SECRET_ACCESS_KEY=secretaccesskey --volumes-from sync_mongo --link sync_mongo:mongo synctree/ec2-consistent-snapshot bin/bash 

⁠3. Running Ec2 Consistent Snapshot

• run the ec2-consistent-snapshot with the following command

ec2-consistent-snapshot --mongo --mongo-host $MONGO_PORT_27017_TCP_ADDR --mongo-port $MONGO_PORT_27017_TCP_PORT vol-volumeId
result: snap-somenumber

-the volumeId is the id of the volume that has the aws instance and the snap-somenumber is the id of the snapshot

⁠It should show that a snapshot is being taken on the aws console on the web browser

Thats it!