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Docker swarm reloaded

G
Govinda Fichtner

The document discusses Docker Swarm, focusing on two versions: the traditional Docker Swarm and the new Swarm mode, which simplifies setup and is integrated with Docker Engine. Swarm mode features a decentralized architecture with manager and worker nodes and employs secure, built-in load balancing. Additionally, it includes demos for getting started with Docker Swarm on Vagrant/VirtualBox and AWS.

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Docker Swarm Reloaded
GOVINDA FICHTNER Paessler AG Nürnberg The network monitoring company Ansible, Chef, Amazon AWS, Linux, CI/CD Python, Ruby/Rails, Go … and Docker :) DevOps & Cloud Engineer Member of the Hypriot Docker Pirates
Docker presents Docker 1.12 Mission Make Orchestration as simple as Containers
Orchestration of course means Docker Swarm
DOCKER SWARM STANDALONE it is the old Docker native clustering solution it is not deprecated future versions of Docker will stay compatible with it relatively complex to set up has external dependencies e.g. distributed key/value store lives at https://github.com/docker/swarm
DOCKER SWARM MODE it is the new Docker Swarm clustering solution exists side-by-side with the old Docker Swarm disabled by default based on https://github.com/docker/swarmkit
DOCKER SWARM MODE FEATURES no external dependencies simple to set up built-in/integrated with Docker-Engine secure by default managed with the standard Docker CLI decentralised & resilient
SWARM MODE ARCHITECTURE Manager nodes: responsible for orchestrating & maintaining the cluster state communication based on the RAFT protocol
SWARM MODE ARCHITECTURE Worker nodes: receive tasks (containers) dispatched by manager nodes Manager nodes can be worker nodes, too
SWARM MODE SECURITY
DOCKER SWARM MODE CONCEPTS Manager Node - dispatches tasks to Worker Nodes & Cluster Management Swarm - Cluster of Docker Engines with Swarm Mode enabled Node - either Manager or Worker Load Balancing - Ingress load balancing on all nodes Task - the actual container running on a Worker Node Service - Definition of the Tasks that should run on Workers
Demo Time
DOCKER SWARM MODE DEMO 1 getting started fast & experiment based on Vagrant/Virtualbox Github-Repo: https://github.com/hypriot/swarmlab
DOCKER SWARM MODE DEMO 2 it’s basically a CloudFormation Template & Ami based on AWS Currently in Beta only via invite integrated with AWS infrastructure: ELB, Autoscaling Groups…
https://github.com/hypriot http://blog.hypriot.com @HypriotTweets @_beagile_ Govinda Fichtner GET IN TOUCH Image with bird swarm courtesy of Brent M at www.flickr.com/photos/thewakingdragon

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Docker swarm reloaded

  • 2. GOVINDA FICHTNER Paessler AG Nürnberg The network monitoring company Ansible, Chef, Amazon AWS, Linux, CI/CD Python, Ruby/Rails, Go … and Docker :) DevOps & Cloud Engineer Member of the Hypriot Docker Pirates
  • 3. Docker presents Docker 1.12 Mission Make Orchestration as simple as Containers
  • 4. Orchestration of course means Docker Swarm
  • 5. DOCKER SWARM STANDALONE it is the old Docker native clustering solution it is not deprecated future versions of Docker will stay compatible with it relatively complex to set up has external dependencies e.g. distributed key/value store lives at https://github.com/docker/swarm
  • 6. DOCKER SWARM MODE it is the new Docker Swarm clustering solution exists side-by-side with the old Docker Swarm disabled by default based on https://github.com/docker/swarmkit
  • 7. DOCKER SWARM MODE FEATURES no external dependencies simple to set up built-in/integrated with Docker-Engine secure by default managed with the standard Docker CLI decentralised & resilient
  • 8. SWARM MODE ARCHITECTURE Manager nodes: responsible for orchestrating & maintaining the cluster state communication based on the RAFT protocol
  • 9. SWARM MODE ARCHITECTURE Worker nodes: receive tasks (containers) dispatched by manager nodes Manager nodes can be worker nodes, too
  • 11. DOCKER SWARM MODE CONCEPTS Manager Node - dispatches tasks to Worker Nodes & Cluster Management Swarm - Cluster of Docker Engines with Swarm Mode enabled Node - either Manager or Worker Load Balancing - Ingress load balancing on all nodes Task - the actual container running on a Worker Node Service - Definition of the Tasks that should run on Workers
  • 13. DOCKER SWARM MODE DEMO 1 getting started fast & experiment based on Vagrant/Virtualbox Github-Repo: https://github.com/hypriot/swarmlab
  • 14. DOCKER SWARM MODE DEMO 2 it’s basically a CloudFormation Template & Ami based on AWS Currently in Beta only via invite integrated with AWS infrastructure: ELB, Autoscaling Groups…
  • 15. https://github.com/hypriot http://blog.hypriot.com @HypriotTweets @_beagile_ Govinda Fichtner GET IN TOUCH Image with bird swarm courtesy of Brent M at www.flickr.com/photos/thewakingdragon