Shantanu's Blog

Database Consultant

July 21, 2016

 

Install and use private docker registry

# On the master server, create a registry container...
docker run -d -p 5000:5000 registry

This command will start a fresh new registry. If you have a registry with all your images built-in then use that like this...

docker run -p 5000:5000 -d shantanuo/myregistry
_____

# On the client server, change the docker config file as shown below and restart docker...
(centOS)
vi /etc/sysconfig/docker
or
vi /etc/init.d/docker

OPTIONS="--insecure-registry 52.205.213.245:5000"

(Ubuntu)
vi /etc/default/docker

DOCKER_OPTS="--insecure-registry 52.205.213.245:5000"

# Now download an image from docker hub and upload it to private repository...
docker pull django
docker pull rabbitmq:3-management
docker pull mongo:3.3.9
docker pull phusion/passenger-full
docker pull continuumio/miniconda

docker tag django 52.205.213.245:5000/shantanuo/mydjango
docker tag rabbitmq:3-management 52.205.213.245:5000/shantanuo/myrabbit
docker tag mongo:3.3.9 52.205.213.245:5000/shantanuo/mymongo
docker tag phusion/passenger-full 52.205.213.245:5000/shantanuo/mypassenger
docker tag continuumio/miniconda 52.205.213.245:5000/shantanuo/myminiconda

docker push 52.205.213.245:5000/shantanuo/mydjango
docker push 52.205.213.245:5000/shantanuo/myrabbit
docker push 52.205.213.245:5000/shantanuo/mymongo
docker push 52.205.213.245:5000/shantanuo/mypassenger
docker push 52.205.213.245:5000/shantanuo/myminiconda

# check if all the images are uploaded correctly
docker search 52.205.213.245:5000/
OR
docker search localhost:5000/
_____

# backup your private registry so that you can restore it in case of master server crash

docker commit 126781fc1667 shantanuo/myregistry

docker push shantanuo/myregistry
_____

Download and run the private registry image from docker hub

docker run -p 5000:5000 -d shantanuo/myregistry

docker search localhost:5000/
NAME                    DESCRIPTION   STARS     OFFICIAL   AUTOMATED
openshift/busybox                     0
shantanuo/pyrun                       0
shantanuo/mydjango                    0
shantanuo/myrabbit                    0
shantanuo/mymongo                     0
shantanuo/mypassenger                 0
shantanuo/myminiconda                 0
_____

Here is how to download and start a container from private registry...

From docker hub:

docker run --hostname oksoft -p 15672:15672  -d rabbitmq:3-management

From private registry:

docker run --hostname oksoft -p 15672:15672  -d ec2-54-164-0-64.compute-1.amazonaws.com:5000/shantanuo/myrabbit

Labels:


 

Install docker on Ubuntu Trusty 14.04

Steps to install docker on Ubuntu Trusty

sudo apt-get update

sudo apt-get install apt-transport-https ca-certificates

sudo apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D

echo "deb https://apt.dockerproject.org/repo ubuntu-trusty main" > /etc/apt/sources.list.d/docker.list
# change the word "main" to "experimental" if you need 1.12 version of docker
_____

sudo apt-get update

sudo apt-get purge lxc-docker

apt-cache policy docker-engine

sudo apt-get update

sudo apt-get install -y linux-image-extra-$(uname -r)

sudo apt-get install apparmor

sudo apt-get update

sudo apt-get install -y docker-engine

sudo service docker start

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July 12, 2016

 

tokuDB (mongo) using docker

Here is the command that will initiate a toku container.

docker run -d -p 27017:27017 -v /tokudata:/data/db ankurcha/tokumx

(or use official image "mongo" instead of ankurcha/tokumx to install mongoDB without toku engine)
Now this toku installation is available through port 27017 from host IP that may be 172.17.0.1 and you can find it using ifconfig command.

The following python code will connect to the toku mongo container and add a record.

from pymongo import MongoClient
client = MongoClient('172.17.0.1:27017')
db = client.myFirstMB
db.countries.insert_one({"name" : "USA"})
for i in db.countries.find():
    print i

Since we have linked the data directory to /tokudata folder of the host machine, the data can be easily backed up.

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