Docker with Selenium by Thirumalai Vignesh
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Docker allows applications to be packaged with all their dependencies and run in isolated containers. This makes test execution using Selenium simpler and more efficient compared to using virtual machines. Docker containers have a smaller footprint than VMs, starting up faster. Building a Selenium grid with hub and nodes inside Docker containers allows easy setup and scaling, while using system resources more efficiently than maintaining VMs. Docker is a cost-effective solution for running Selenium tests compared to maintaining a Selenium grid on virtual machines.
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Docker - A Quick Introduction Guide
This document provides an introduction to Docker. It discusses how Docker benefits both developers and operations staff by providing application isolation and portability. Key Docker concepts covered include images, containers, and features like swarm and routing mesh. The document also outlines some of the main benefits of Docker deployment such as cost savings, standardization, and rapid deployment. Some pros of Docker include consistency, ease of debugging, and community support, while cons include documentation gaps and performance issues on non-native environments.
Introduction to Dockers.pptx
This document introduces Docker. It discusses that Docker uses containerization rather than virtualization, allowing applications and their dependencies to run in isolated containers that share the host operating system's kernel. It describes Docker's client-server architecture with containers built from images and run by the Docker daemon. Benefits of Docker include low overhead, speed, and portability of applications, while disadvantages include potential backup and management challenges for large numbers of containers.
Overview of Docker
Docker is a containerization platform that packages applications and dependencies into containers that can run on any infrastructure. Containers are more lightweight than virtual machines and provide operating-system-level virtualization. The key Docker components are the Docker Engine (including the daemon and client), images, containers, registries, and networks. Dockerfiles define how to build images automatically by running commands. Images act as templates for containers, which are lightweight and portable environments for applications.
Introduction to Docker - VIT Campus
- The document introduces Docker, explaining that it provides standardized packaging for software and dependencies to isolate applications and share the same operating system kernel.
- Key aspects of Docker are discussed, including images which are layered and can be version controlled, containers which start much faster than virtual machines, and Dockerfiles which provide build instructions for images.
- The document demonstrates Docker's build, ship, and run workflow through examples of building a simple image and running a container, as well as using Docker Compose to run multi-container applications like WordPress. It also introduces Docker Swarm for clustering multiple Docker hosts.
What is Docker?
My college ppt on topic Docker. Through this ppt, you will understand the following:- What is a container? What is Docker? Why its important for developers? and many more!
A curtain-raiser to the container world Docker & Kubernetes
Agenda
1. The changing landscape of IT Infrastructure
2. Containers - An introduction
3. Container management systems
4. Kubernetes
5. Containers and DevOps
6. Future of Infrastructure Mgmt
About the talk
In this talk, you will get a review of the components & the benefits of Container technologies - Docker & Kubernetes. The talk focuses on making the solution platform-independent. It gives an insight into Docker and Kubernetes for consistent and reliable Deployment. We talk about how the containers fit and improve your DevOps ecosystem and how to get started with containerization. Learn new deployment approach to effectively use your infrastructure resources to minimize the overall cost.
Docker and kubernetes
Docker is an open-source tool that allows developers to easily deploy applications inside isolated containers. Kubernetes is an open-source system for automating deployment and management of containerized applications across clusters of hosts. It coordinates containerized applications across nodes by providing mechanisms for scheduling, service discovery, and load balancing. The key components of Kubernetes include Pods, Services, ReplicationControllers, Scheduler, API Server, etcd and Nodes.
Docker
Docker allows building, shipping, and running applications in portable containers. It packages an application with all its dependencies into a standardized unit for software development. Major cloud providers and companies support and use Docker in production. Containers are more lightweight and efficient than virtual machines, providing faster launch times and allowing thousands to run simultaneously on the same server. Docker simplifies distributing applications and ensures a consistent environment.
Docker Introduction SDP 12-2015
A Docker intro session i gave on December 2015 SDP Convention
This slide will explain the logic behind docker and why should you use it and replace your old infra with containers
Introduction to Docker - Vellore Institute of Technology
- The document introduces Docker, including what problem it solves for software development workflows, its key concepts and terminology, and how to use Docker to build, ship, and run containers.
- It compares Docker containers to virtual machines and discusses Docker's build process using Dockerfiles and images composed of layers.
- Hands-on demos are provided for running a first Docker container, building an image with Dockerfile, and using Docker Compose to run multi-container apps.
- Later sections cover Docker Swarm for clustering multiple Docker hosts and running distributed apps across nodes, demonstrated through a Raspberry Pi example.
24 23 jun17 2may17 16231 ijeecs latest_version (1) edit septian
Server virtualization is a fundamental technological innovation that is used extensively in IT enterprises. Server virtualization enables creation of multiple virtual machines on single underlying physical machine. It is realized either in form of hypervisors or containers. Hypervisor is an extra layer of abstraction between the hardware and virtual machines that emulates underlying hardware. In contrast, the more recent container-based virtualization technology runs on host kernel without additional layer of abstraction. Thus container technology is expected to provide near native performance compared to hypervisor based technology. We have conducted a series of experiments to measure and compare the performance of workloads over hypervisor based virtual machines, Docker containers and native bare metal machine. We use a standard benchmark workload suite that stresses CPU, memory, disk IO and system. The results obtained show that Docker containers provide better or similar performance compared to traditional hypervisor based virtual machines in almost all the tests. However as expected the native system still provides the best performance as compared to either containers or hypervisors.
Domino on docker version 2
Not leading edge but bleeding edge experience Dockerizing Domino server and running XPages applications. Lotus Notes applications run just fine as well.
In the future IBM will make standing up Domino servers more automated. We do have a configuration step that is manual once the server starts... but it is dockerized and replicates with on prem Domino Domain.
Similar to Docker with Selenium by Thirumalai Vignesh (20)
Introduction to Docker Containers - Docker Captain
Introduction to Docker Containers - Docker Captain
A curtain-raiser to the container world Docker & Kubernetes
A curtain-raiser to the container world Docker & Kubernetes
Introduction to Docker - Vellore Institute of Technology
Introduction to Docker - Vellore Institute of Technology
24 23 jun17 2may17 16231 ijeecs latest_version (1) edit septian
24 23 jun17 2may17 16231 ijeecs latest_version (1) edit septian
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- 2. What is Docker ? Docker is a software that helps to build, ship and run any application in a container. This helps the developers to package the application with all of its parts needed, such as libraries and other dependencies and ship them as single package. These packages are shipped as Images. Containers are the instances of these images. With docker we create images with selenium libraries and other dependencies in it and use them in a container as test execution environment (Can be a selenium grid :) ). Running selenium scripts on stand alone browsers or on selenium grid inside the container is simple and effective. In a way, Docker is a bit like a virtual machine. But unlike a virtual machine, rather than creating a whole virtual operating system, Docker allows applications to use the same Linux kernel as the system that they're running on and only requires applications be shipped with things not already running on the host computer. This gives a significant performance boost and reduces the size of the application. Why Docker ? And what makes it different ?
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