Scaling Node with Docker + Nginx

In this talk we present solutions to scale node applications by leveraging Docker and Nginx.

Transcript

1. Belgian node.js User Group Nils De Moor - @ndemoor - woorank.com Scaling Node with Docker + Nginx
2. • Nils De Moor • CTO & co-founder at WooRank • #node #mongo #ansible #aws #devops #docker About me
3. Why docker? Source: https://www.docker.io/learn_more/
4. Why docker? Source: https://www.docker.io/learn_more/
5. Why docker? Source: https://www.docker.io/learn_more/
6. Why docker? Source: https://www.docker.io/learn_more/
7. • Isolation • Portability • Compatibility • Automation • Speed Why docker? “Run anything... anywhere”
8. • LXC Containers • “Chroot on steroids” • AUFS • layered view on merged directories • copy-on-write What and how?
9. BUILDING Images Source: https://docs.docker.io
10. git clone github.com/ndemoor/njugbe9
11. • Scripting language • Automated builder • Create images • Cached Dockerfile
12. FROM ubuntu # make sure the package repository is up to date RUN echo "deb http://archive.ubuntu.com/ubuntu precise main universe" > /etc/apt/sources.list RUN apt-get update # install memcached RUN apt-get install -y memcached # run as user daemon (memcached doesn't allow to run as root) USER daemon # expose memcached port EXPOSE 11211 # Launch memcached when launching the container # CMD [ "memcached" ] ENTRYPOINT ["memcached"]
13. FROM ubuntu MAINTAINER Nils De Moor RUN echo "deb http://archive.ubuntu.com/ubuntu precise main universe" > /etc/apt/sources.list RUN apt-get update RUN apt-get install -y python-software-properties software-properties-common RUN add-apt-repository ppa:chris-lea/node.js RUN apt-get update RUN apt-get install -y nodejs CMD [ "node" ]
15. FROM njugbe/node:0.10.26 MAINTAINER Nils De Moor ADD . /var/www RUN cd /var/www && npm install EXPOSE 3000 CMD [ "node", "/var/www/server.js" ]
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22. # Configuration for the server server { listen 80; location / { proxy_pass http://app_containers; proxy_redirect off; proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header X-Forwarded-Host $server_name; } }
23. #!/bin/sh IMAGE=$1 VERSION=$2 DOCKER_ID=`docker run \ -link memcache:mc \ -v /tmp/log/app:/var/log/app:rw \ -p 3000 \ -d \ $IMAGE:$VERSION` PORT=`sudo docker inspect $DOCKER_ID | grep HostPort | cut -d '"' -f 4 | head -1` cat >/etc/nginx/conf.d/app_containers.conf <<EOL upstream app_containers { server 127.0.0.1:${PORT}; } EOL echo "Version:\t$IMAGE:$VERSION\n Id:\t\t$DOCKER_ID\n Port:\t\t$PORT"
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25. • Deis - deployment and orchestration • Dokku - deployment • Fig - deployment • Flynn - deployment and orchestration • Shipyard - monitoring Community
26. Thank you! Belgian node.js User Group Nils De Moor - @ndemoor - woorank.com
27. Thank you! Psst... we’re hiring