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![CloudStack and Machine • Many drivers (i.e exoscale ) • Generic CloudStack driver needs love $ ./docker-machine create -d exoscale foobar INFO[0000] Creating SSH key... INFO[0001] Creating exoscale... INFO[0005] Waiting for SSH... INFO[0072] Configuring Machine...](https://image.slidesharecdn.com/docker-cloudstack-seattle-150820142356-lva1-app6892/75/Docker-and-CloudStack-12-2048.jpg)
Uploaded bySebastien Goasguen
Docker and CloudStack
- Docker can be integrated with CloudStack in several ways, including running Docker in CloudStack virtual machine guests, packaging CloudStack as Docker containers, and using Docker orchestrators to manage containers. - CloudStack could potentially be re-architected to run its components in Docker containers and use Docker networking for isolation, with an orchestrator like Mesos or Kubernetes managing the CloudStack application. - There are open questions around whether CloudStack or other orchestrators should schedule virtual machines or containers as the primary compute resource in a private cloud data center.
In this document
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Presentation by Sebastien Goasguen introducing CloudStack and Docker, highlighting his background.
Docker's transformative role in application design and management, covering its components like Docker Engine and Swarm.
CloudStack's functionalities as a VM orchestrator, integrating Docker for guest management and container packaging.
Methods to run Docker on VMs or public clouds using Docker templates and leveraging CloudStack to offer such services.
Using Docker Machine for remote host creation and TLS communication, along with CloudStack driver insights.
CloudStack installation strategies via Docker, detailing various Docker images and the setup of Dockerfiles.
Introduction of Docker Compose for managing multiple containers with YAML files, applied to CloudStack services.
Running KVM agents in containers and managing Docker containers across multiple hosts with orchestration tools.
Creating and managing Docker Swarm clusters in CloudStack while addressing the philosophy of VM vs. container management.
Exploring Docker as an infrastructure tool, including networking capabilities and the potential of running VMs in containers.
Exploring the potential of integrating CloudStack with Mesos and Kubernetes, emphasizing the evolving nature of cloud management.
Docker and CloudStack
- 1. And cloudStack Sebastien Goasguen Seattle,August 20th @sebgoa
- 2. Background • Citrix OpenSource Architect • VP of Apache CloudStack • PMC of Apache libcloud • ASF member • O’Reilly author of the Docker cookbook
- 3. Stop the press •Dockeris super cool •It’s changing the way we design and manage applications •It may change the way we build infrastructure systems
- 4. • Docker engine •Docker compose • Docker machine • Docker Swarm • Docker Toolbox • Docker Network
- 5. • A VMorchestrator • Same as Opennebula/OpenStack/Eucalyptus • Made to build a public or private cloud • Hypervisor agnostic • Multi-tenancy • Network and Storage plugins • API
- 6. Integration points • Dockerin CloudStack guests • Package CloudStack as a set of containers • Docker orchestrators • Docker as plumbing
- 7.
- 8. Where do yourun Docker ?
- 9. • On VMs •In a Public cloud • Guests with Docker engine • “Docker templates”
- 10. Offer those inyour cloud
- 11. Machine • One binaryto create a remote Docker host and setup the TLS communication with your local docker client. • Automates the TLS setup and the configuration of the local environment • Can manage multiple machines in different clouds at the same time
- 12. CloudStack and Machine •Many drivers (i.e exoscale ) • Generic CloudStack driver needs love $ ./docker-machine create -d exoscale foobar INFO[0000] Creating SSH key... INFO[0001] Creating exoscale... INFO[0005] Waiting for SSH... INFO[0072] Configuring Machine...
- 13. Cloudstack in dockercontainers
- 14. CloudStack installation • Dockeris great to package distributed applications • Why not package CloudStack in Docker. • Running CloudStack would be just about running a few containers.
- 15. Docker to PackageCloudStack cloudstack/simulator cloudstack/management_centos6 cloudstack/cloudmonkey cloudstack/marvin cloudstack/ec2stack
- 16. Dockerfiles • All CloudStackrepositories now have Dockerfiles • Automated builds setup on Jenkins and Docker hub • Need to work on bootstrap process • Decoupling DB • …
- 17. Docker Compose • Onebinary to start/manage multiple containers and volumes on a single Docker host • Move your lengthy docker run commands to a YAML file
- 18. e.G YAML description wordpress: image:wordpress links: - mysql ports: - "80:80" environment: - WORDPRESS_DB_NAME=wordpress - WORDPRESS_DB_USER=wordpress - WORDPRESS_DB_PASSWORD=wordpresspwd mysql: image: mysql volumes: - /home/docker/mysql:/var/lib/mysql environment: - MYSQL_ROOT_PASSWORD=wordpressdocker - MYSQL_DATABASE=wordpress - MYSQL_USER=wordpress - MYSQL_PASSWORD=wordpresspwd
- 19. CloudStack ? cloudstack: image: cloudstack/management links: -mysql ports: - "8080:8080” mysql: image: mysql volumes: - /home/docker/mysql:/var/lib/mysql … ec2: image: cloudstack/ec2stack ports: - “5000:5000”
- 20. The Agent • Inthe case of KVM, we need to run a KVM agent • Need to run the agent in a container, and use it to spawn KVM processes in the host • Easy integration with CloudStack, there are more involved scenarios.
- 21.
- 22. Docker orchestrators • Howto manage docker containers on multi- host ? • Docker swarm, Lattice, kubernetes, Rancher • Should CloudStack orchestrates containers ?
- 23. How about Swarm? • You can create a swarm cluster with docker- machine • Hence, it’s easy to create a Swarm in CloudStack
- 24. How to deployapps in clouds • Configuration mgt • Terraform • Recipes to deploy Kubernetes, Rancher and Lattice • Terraform plans to deploy Lattice and Kubernetes on CloudStack
- 25. Philosophy • CloudStack managesVM • Let’s do it well • Let something else manage containers • Can’t keep up with the velocity of Kubernetes • If AWS builds ECS on top of EC2 why should we do it differently
- 26.
- 27. Not only containers •Docker is also becoming a great tool for plumbing infra • Docker network – Allows you to create VXLAN overlays – Plugins, including OVS plugin • Use Docker network as a new network provider in cloudstack
- 28. Letting loose abit …
- 29. What if ? •CloudStack is a distributed app • CloudStack components all run in containers • We use docker network to isolate users’s VM • Why not run the VMs in containers as well (i.e KVM process in a namespace and cgroups) • What manages CloudStack then ? A container application
- 30.
- 31. CloudStack 5.0 • CloudStackas a Mesos framework is totally doable (e.g KVM executor ) • Kubernetes has the same lineage as Mesos (i.e Borg) • How about CloudStack in Kubernetes ? – Why not. GCE is a Kubernetes app
- 32. What gives ? •Docker on cloudstack ? • Cloudstack on docker ? • Boils down to the unit of scheduling in your data center • Do you prefer to schedule VMs or containers ?
- 33. Conclusions • Docker issuper cool • We already have integration points in CloudStack • Room for more and room for your help • What the future is made of…we will see soon enough !