Diego & Docker - Good friends or not ?

• DevOps Engineer @anynines • Used to work with Java (monoliths)• Got to know Node.js and

Microservices • Learned about CloudFoundry • Can I push my Container to CF ?

Why even use Docker ?

Code

Dockerfile

Docker Imagedocker build

Docker container

Codedocker run

Docker hub

Docker hub

Docker ImageDocker ImageDocker Image

Developer machine

Docker container

Code

node 0.12

Docker Image

Docker hub

Docker ImageDocker Image

new Developer machine test/staging/production machine

Docker container

Code

Docker container

Code

node 6.3.0 node 5.0.0

node 5.0.0 node 5.0.0 node 5.0.0

Docker Image

Why even use Cloud Foundry ?

Developer machine

Code

Cloud Foundry

Instancecf push

Developer machine

Code

Cloud Foundry

Instancecf scale APP -i 4

Instance

Instance

Instance

Diego supports Docker

Docker Image

Filesystem

Commands

Garden Container

Filesystem

Droplet

Garden Linux

creates

Garden Container

Garden Linux

creates

Docker Image

Filesystem

Commands

Why even use Docker & CloudFoundry

Importer

Docker Container

MongoDB(Movies)

DBWrapper

Recommender

Docker Container

MongoDB(Subscriber)

Spin it up$ docker run -d -p 27017:27017 mongo

$ cd ../importer$ PORT=… MOVIE_DB_HOST=… MOVIE_DB_PORT=… npm start

$ cd ../recommender$ PORT=… MOVIE_DB_HOST=… MOVIE_DB_PORT=… npm start

$ cd db$ PORT=… MOVIE_MONGO_URI=mongodb://192… npm start

$ docker pull mongo

Docker Container

Docker ContainerDocker Container

Importer

Docker Container

MongoDB(Movies)

DBWrapper

Recommender

Docker Container

MongoDB(Subscriber)

Spin it up with Docker$ docker-compose up

Importer

Docker Container

MongoDB(Movies)

DBWrapper

Recommender

Docker Container

MongoDB(Subscriber) $ MONGO_URI=… npm

start

local

$ MOVIE_DB_HOST=… npm start $ MOVIE_DB_HOST=… npm start

MongoDB(Movies)

DBWrapper

cloud

manifest.yml

Importer

DBWrapper

manifest.yml

cloud

DBWrapper

Recommender

cloud

manifest.yml

Recommender

MongoDB(Subscriber)

manifest.ymlcloud

Deploy it on Cloud Foundry$ docker build -t mebnoah/moviez_db .$ docker push mebnoah/moviez_db

$ cf push --docker-image mebnoah/moviez_db

$ cd db

$ cd ../importer$ docker build -t mebnoah/moviez_importer .$ docker push mebnoah/moviez_importer

$ cf push --docker-image mebnoah/moviez_importer $ cd ../recommender

$ docker build -t mebnoah/moviez_recommender .$ docker push mebnoah/moviez_recommender

$ cf push --docker-image mebnoah/moviez_recommender

State of the onion

Spin it up with just 1 command

• Build each Docker image explicitly• Register on Docker Hub and push

each image • Push each app separately to CF

You decide wether to push a micro service with or without

docker !

I would push it without docker

Spin it up with just 1 command

Push it to CF with just 1 command

Support Continuous Integration/Deployment

There is a friendship but it’s not a good one

Questions ?

• github.com/mebnoah• twitter.com/mebnoah

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