Containers: Beyond the Basics

Workshop given at ContainerDaysNYC in New York, October 2015

Transcript

1. Containers: Beyond the Basics Andrew Donald Kennedy Scott Harzel ContainerDaysNYC October 2015
2. •Andrew Donald Kennedy • Software Engineer at Cloudsoft • Founder of Clocker, Docker orchestration project •Scott Harzel • Product Management at Cloudsoft Introduction
3. Docker •Process abstraction •Images • Composable format for process environment • Designed and built with Dockerfiles • Composable •Containers • Running image • One (or more) processes • Resource and security constrained
4. Docker Extras •Software-Defined Networking • Calico • Weave •Storage and Volume Management • Flocker •More Being Developed… • Native Plugins
5. •What do you use Docker for? • Production, Testing, Development? •What do you have problems with? •What software do you use with Docker? •What do you use to control Docker? •What do you run with Docker? •What software do you want to use? Un-Workshop Questions
6. Un-Workshop Programme •Expectations and knowledge • What do you want to learn? •Practical Tasks •Install Software •Setup Laptop Environment •Run through some example tasks •Work on a larger project together • Synthesise what we covered earlier
7. Requirements •OSX or Linux (maybe Windows?) •Vagrant and VirtualBox •Docker Toolbox or Docker •Package manager • Native, MacPorts, Homebrew etc. •Java? •Git
8. •GitHub repository grkvlt/containers-install https://github.com/grkvlt/containers-install •USB Sticks with the installers for OSX, Linux and Windows are available too... Install
9. Download •Run either sequence of commands on OSX or Linux $ git clone \ https://github.com/grkvlt/containers-workshop.git $ cd containers-workshop $ wget http://git.io/vlLVK -O master.tar.gz $ tar zxf master.tar.gz $ cd containers-workshop-master
10. Basic Tasks 1. Install Docker locally and test 2. Start Ubuntu VM with Vagrant 3. Check VM access 4. Check Docker running 5. Check Compose running 6. Build application from Dockerfile 7. Run application from YAML
11. Metaswitch Project Calico •SDN for Bare Metal, VMs and Containers • Layer 3 • Uses OS IP routing and forwarding •Configuration in an etcd Cluster •Version 0.4.9 in Clocker • 0.9.0 with libnetwork when Docker stable •Spans VMs and Containers • OpenStack Neutron network driver
12. SDN Tasks 1. Start Calico VMs with Vagrant 2. Run the Calico demos 3. Build a Redis cluster 4. Install the Redis client and test 5. Test connectivity 6. Try building a Cassandra cluster
13. ClusterHQ Flocker •Storage Plugin •Mount Volumes on Host • EMC • Ceph • ZFS •Peristent Data for Containers
14. Flocker Tasks 1. Start Flocker VMs with Vagrant 2. Run Flocker tasks to verify install 3. Try out Flocker comand-line tools 4. Run Flocker MongoDB application
15. Brooklyn Clocker •Orchestration •Manage Docker Cluster • Multiple machines • Install Docker, start SDN and configure host •Deploy Applications • CAMP or TOSCA blueprint • Mix containers and VMs
16. Clocker Tasks 1. Start Clocker VMs with Vagrant 2. Start Clocker using local Docker 3. Start Docker infrastructure with Calico SDN 4. Run test application on Clocker location
17. Extended Tasks 1. Combine Calico and Flocker in a single Vagrantfile 2. Include Compose as well 3. Build Compose file for Redis cluster 4. Build Compose file for application with Redis cluster 5. Build Dockerfile application for Web server with Flocker volume 6. Anything else people want to try?