Docker Swarm For High Availability | Docker Tutorial | DevOps Tutorial | Edureka
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The document discusses Docker containers, Docker Swarm, and achieving high availability with Docker Swarm. It defines a Docker container as an isolated application platform containing everything needed to run an application. Docker Swarm is described as a technique to create and maintain a cluster of Docker engines to provide high availability, load balancing, and scaling of services. The document demonstrates setting up a Docker Swarm cluster with two nodes and deploying an Angular application across the nodes for high availability.
Docker Swarm For High Availability | Docker Tutorial | DevOps Tutorial | Edureka
- 1. Copyright © 2017, edureka and/or its affiliates. All rights reserved. Agenda
- 2. Copyright © 2017, edureka and/or its affiliates. All rights reserved. Agenda For The Session i. What Is A Docker Container? ii. What Is Docker Swarm? iii. Docker Swarm Commands iv. Demo: Achieving High Availability Using Docker Swarm
- 3. Copyright © 2017, edureka and/or its affiliates. All rights reserved. What Is A Docker Container? Docker Container is an isolated application platform which contains everything needed to run the application. They are built from one base docker image & dependencies are installed on top of the image as “image layers”. Container Lifecycle
- 4. Copyright © 2017, edureka and/or its affiliates. All rights reserved. What Is Docker Swarm? Docker Swarm is a technique to create and maintain a cluster of Docker Engines. Service deployed in any node can be accessed on other nodes in the same cluster. • High-Availability of services • Auto load-balancing • Decentralized access • Easy to Scale-up deployments • Rolling updates FEATURES Docker Manager
- 5. Copyright © 2017, edureka and/or its affiliates. All rights reserved. Demo Achieving High Availability With Docker Swarm
- 6. Copyright © 2017, edureka and/or its affiliates. All rights reserved. Docker Swarm For High Availability Docker Swarm Cluster MANAGER Node - 1 Node - 2 Port 4200: Angular Application
- 7. Copyright © 2017, edureka and/or its affiliates. All rights reserved. Docker Swarm For High Availability Docker Swarm Cluster MANAGER Node - 1 Node - 2 Port 4200: Angular Application
- 8. Copyright © 2017, edureka and/or its affiliates. All rights reserved. Docker Swarm For High Availability Docker Swarm Cluster MANAGER Node - 1 Node - 2 Port 4200: Angular Application
- 9. Copyright © 2017, edureka and/or its affiliates. All rights reserved. Docker Swarm Commands $ docker swarm init --advertise-addr <ip-addr>Initialize the swarm $ docker service lsList services $ docker service ps <name>List task of services $ docker service create <name> <image -name>Create new service $ docker service rm <name>Remove service $ docker service scale <name>=5Scale services $ docker swarm leave --forceLeave the swarm $ docker node lsList the nodes $ docker node psList services in nodes $ docker node rm <id>Remove node
- 10. Copyright © 2017, edureka and/or its affiliates. All rights reserved. Session In A Minute What Is Docker Container? Docker Swarm Commands What Is Docker Swarm? Demo: Docker Swarm For High Availability
- 11. Copyright © 2017, edureka and/or its affiliates. All rights reserved. WebDriver vs. IDE vs. RC ➢ Data Warehouse is like a relational database designed for analytical needs. ➢ It functions on the basis of OLAP (Online Analytical Processing). ➢ It is a central location where consolidated data from multiple locations (databases) are stored.