Docker on AWS OpsWorks

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    08-Sep-2014
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Presentation about how to run Docker on AWS EC2 with AWS OpsWorks.

Transcript of Docker on AWS OpsWorks

  • 2014 Amazon.com, Inc. and its affiliates. All rights reserved. May not be copied, modified, or distributed in whole or in part without the express consent of Amazon.com, Inc. Running Docker on AWS Jonathan Weiss @jweiss Amazon Web Services
  • Docker on AWS Do it yourself on EC2 Automate with AWS OpsWorks AWS Beanstalk simplecontrol
  • Integrated application management service on EC2 powered by Chef
  • Chef Setup Chef Client/Zero & OpsWorks Backend Chef Client & Chef Server
  • OpsWorks Architecture OpsWorks Backend OpsWorks Agent EC2, EBS, EIP, VPC, RDS, ELB, Auto-Scaling, Auto-Healing, On-instance execution via Chef client/zero Command JSON Command Log+Status
  • Chef Setup in OpsWorks Supported Chef versions: 0.9, 11.4 or 11.10 Built-in convenience cookbooks / bring your own Chef run is triggered by life cycle event firing Event comes with stack state JSON
  • Why run Docker on OpsWorks? Full control of Docker version & install Full control of mapping container to instance Automation of AWS resources Resource discovery, e.g. other containers
  • AWS OpsWorks
  • Stacks & Layers
  • Modeling in OpsWorks
  • Layers Group of instances with common behavior & settings Chef recipes / run_list Settings / attributes Similar to a Chef role
  • Built-in Layers Open Source at http://github.com/aws/opsworks-cookbooks Rails MySQL PHP HAProxy Node.js Memcached Java Ganglia
  • Custom Layers Define your own layers and their Chef run_list Erlang app server Cassandra DB cluster C daemon Custom PHP install Docker!
  • Custom Layers
  • Custom Layers
  • Custom Layers
  • Event Life Cycle
  • Events Events are triggered when your stack changes: Chef run_list per event per layer Give you fine-grained control
  • Life Cycle Events 1 9 setup configure deploy undeploy shutdown
  • Instance Life Cycle new
  • Instance Life Cycle new
  • Instance Life Cycle new online setup configure
  • Instance Life Cycle new online setup configure deploy
  • Instance Life Cycle new/stopped online setup configure terminating shutting down deploy configure
  • Setup Event Sent when instance boots Includes deploy event Use for initial installation of software & services Install Docker
  • Configure Event Sent to all instances when any instance enters or leaves online state Use for making sure the configuration is up-to-date Update etcd config
  • Deploy Event Sent when you deploy via UI/API also part of each setup Use for custom deployment Deploy Dockerfiles / images
  • Undeploy Event Sent via UI/API when apps are deleted Use to remove apps from running instances Stop containers
  • Shutdown Event Sent when an instance is shut down ~45s to execute Use for clean shutdown
  • Stack State JSON Each event gets JSON / attributes that define the current stack state: node[:opsworks] search(:node, "role:db-master") node[:opsworks][:layers] search(:node, "*") node[:opsworks][:instance] node[:opsworks][:stack]
  • Creating a Docker Layer
  • Ingredients chef-docker cookbook from https://github.com/bflad/chef-docker OpsWorks custom layer
  • Docker Layer Create a custom layer: Name: Docker Shortname: docker
  • Setup Install Docker recipe[docker::default] Installs Docker from source or package Handles dependencies like lxc, aufs or cgroups Docker service and /etc/init/docker.conf
  • Deploy Manage Containers docker_image 'shipyard/shipyard' do action :pull notifies :redeploy,'docker_container[shipyard]', :immediately end docker_container 'shipyard' do action :run end
  • Configure Update etcd if db_server = search(:node, "role:db-master").first execute "Publish database IP" do command "etcdctl set /db-ip #{db_server[:private_ip]}" end end
  • Undeploy docker_container 'shipyard' do signal 'QUIT' action :kill end
  • Next Steps Have one custom layer per Docker app Configure auto-scaling, ELBs, etc
  • Recap
  • AWS OpsWorks Life cycle automation framework Highly customizable in the end everything is a Chef run Takes care of AWS integration
  • Docker on OpsWorks Automate install & configuration of Docker Fleet management Dynamic configuration
  • More information about AWS OpsWorks Follow us on twitter @AWSOpsWorks Find us on YouTube Docs: http://aws.amazon.com/documentation/opsworks Blog: http://blogs.aws.amazon.com/application-management
  • Thank You@jweiss aws.amazon.com/opsworks