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.

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Agenda

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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

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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

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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

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Demo
Achieving High Availability With Docker Swarm

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Docker Swarm For High Availability
Docker Swarm Cluster
MANAGER
Node - 1 Node - 2
Port 4200: Angular Application

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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

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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

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Session In A Minute
What Is Docker Container?
Docker Swarm Commands
What Is Docker Swarm?
Demo: Docker Swarm For
High Availability

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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.