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Docker Explained | What Is A Docker Container? | Docker Simplified | Docker Tutorial | Edureka

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( ** DevOps Training: https://www.edureka.co/devops ** ) This Docker Explained PPT will explain to you the fundamentals of Docker with a hands-on. Below are the topics covered in the PPT: Problems Before Docker Virtualization vs Containerization What is Docker? How does Docker work? Docker Components Docker Architecture Docker Compose & Docker Swarm Hands-On

Technology
1 of 20
DevOps Certification Training www.edureka.co/devops Topics For Today’s Session Problems Before Docker Virtualization vs Containerization What is Docker? How does Docker Work? Hands-On Docker Compose & Docker Swarm Docker Architecture Docker Components
DevOps Certification Training www.edureka.co/devops Problems Before Docker Code works fine in my laptop There is some problem with the code Dev Prod
DevOps Certification Training www.edureka.co/devops Scenario Using Virtual Machines
DevOps Certification Training www.edureka.co/devops Scenario After Using Docker
DevOps Certification Training www.edureka.co/devops Virtualisation Vs Containerization
DevOps Certification Training www.edureka.co/devops What is Docker?
DevOps Certification Training www.edureka.co/devops What is Docker? •Docker is a tool designed to make it easier to create, deploy, and run applications by using containers. •Docker containers are lightweight alternatives to Virtual Machines, and it uses the host OS. •You don’t have to pre-allocate any RAM in containers.
DevOps Certification Training www.edureka.co/devops What is Docker?
DevOps Certification Training www.edureka.co/devops What is Docker?
DevOps Certification Training www.edureka.co/devops Docker Engine is simply the docker application that is installed on your host machine. How Does Docker Work? Docker Engine Docker CLI Client REST API Docker Daemon Server The Client- Server architecture communicates using a REST API. Docker Daemon checks the requests to manage the containers. Docker Engine uses a Client Server Architecture.
DevOps Certification Training www.edureka.co/devops Components of Docker Dockerfile DockerImage Docker Container Docker Registry
DevOps Certification Training www.edureka.co/devops Docker File, Images & Container Docker File Docker Image Docker Container Build Run Isolated Application Platform Contains Everything Needed To Run The Application Built From One Or More Images Read Only Template Used To Create Containers Built By Docker Users Stored In Docker Hub Or Your Local Registry A text document which contains all the commands that a user can call on the command line to assemble an image.
DevOps Certification Training www.edureka.co/devops Docker Registry ▪Control where your images are being stored ▪Integrate image storage with your in-house development workflow ▪Docker Registry is a storage component for Docker Images ▪We can store the Images in either Public / Private repositories ▪Docker Hub is Docker’s very own cloud repository Why Use Docker Registries?
DevOps Certification Training www.edureka.co/devops Docker Architecture
DevOps Certification Training www.edureka.co/devops Docker Swarm Docker Swarm provides native clustering capabilities to turn a group of Docker engines into a single, virtual Docker Engine. With these pooled resources, you can scale out your application as if it were running on a single, huge computer.
DevOps Certification Training www.edureka.co/devops Docker Compose Docker Compose makes it easier to configure and run applications made up of multiple containers. For the example: imagine being able to define three containers—one running a web app, another running postgres, and a third running redis—all in one YAML file and then running those three connected containers with a single command. You can run these three containers with a single command
Copyright © 2018, edureka and/or its affiliates. All rights reserved. Hands-On Writing a Dockerfile and creating a container
Copyright © 2018, edureka and/or its affiliates. All rights reserved. Hands-On To get a Node.js application into Docker Container using Docker Swarm
Docker Explained | What Is A Docker Container? | Docker Simplified | Docker Tutorial | Edureka

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Docker Explained | What Is A Docker Container? | Docker Simplified | Docker Tutorial | Edureka

  • 1.
  • 2. DevOps Certification Training www.edureka.co/devops Topics For Today’s Session Problems Before Docker Virtualization vs Containerization What is Docker? How does Docker Work? Hands-On Docker Compose & Docker Swarm Docker Architecture Docker Components
  • 3. DevOps Certification Training www.edureka.co/devops Problems Before Docker Code works fine in my laptop There is some problem with the code Dev Prod
  • 4. DevOps Certification Training www.edureka.co/devops Scenario Using Virtual Machines
  • 5. DevOps Certification Training www.edureka.co/devops Scenario After Using Docker
  • 6. DevOps Certification Training www.edureka.co/devops Virtualisation Vs Containerization
  • 7. DevOps Certification Training www.edureka.co/devops What is Docker?
  • 8. DevOps Certification Training www.edureka.co/devops What is Docker? •Docker is a tool designed to make it easier to create, deploy, and run applications by using containers. •Docker containers are lightweight alternatives to Virtual Machines, and it uses the host OS. •You don’t have to pre-allocate any RAM in containers.
  • 9. DevOps Certification Training www.edureka.co/devops What is Docker?
  • 10. DevOps Certification Training www.edureka.co/devops What is Docker?
  • 11. DevOps Certification Training www.edureka.co/devops Docker Engine is simply the docker application that is installed on your host machine. How Does Docker Work? Docker Engine Docker CLI Client REST API Docker Daemon Server The Client- Server architecture communicates using a REST API. Docker Daemon checks the requests to manage the containers. Docker Engine uses a Client Server Architecture.
  • 12. DevOps Certification Training www.edureka.co/devops Components of Docker Dockerfile DockerImage Docker Container Docker Registry
  • 13. DevOps Certification Training www.edureka.co/devops Docker File, Images & Container Docker File Docker Image Docker Container Build Run Isolated Application Platform Contains Everything Needed To Run The Application Built From One Or More Images Read Only Template Used To Create Containers Built By Docker Users Stored In Docker Hub Or Your Local Registry A text document which contains all the commands that a user can call on the command line to assemble an image.
  • 14. DevOps Certification Training www.edureka.co/devops Docker Registry ▪Control where your images are being stored ▪Integrate image storage with your in-house development workflow ▪Docker Registry is a storage component for Docker Images ▪We can store the Images in either Public / Private repositories ▪Docker Hub is Docker’s very own cloud repository Why Use Docker Registries?
  • 15. DevOps Certification Training www.edureka.co/devops Docker Architecture
  • 16. DevOps Certification Training www.edureka.co/devops Docker Swarm Docker Swarm provides native clustering capabilities to turn a group of Docker engines into a single, virtual Docker Engine. With these pooled resources, you can scale out your application as if it were running on a single, huge computer.
  • 17. DevOps Certification Training www.edureka.co/devops Docker Compose Docker Compose makes it easier to configure and run applications made up of multiple containers. For the example: imagine being able to define three containers—one running a web app, another running postgres, and a third running redis—all in one YAML file and then running those three connected containers with a single command. You can run these three containers with a single command
  • 18. Copyright © 2018, edureka and/or its affiliates. All rights reserved. Hands-On Writing a Dockerfile and creating a container
  • 19. Copyright © 2018, edureka and/or its affiliates. All rights reserved. Hands-On To get a Node.js application into Docker Container using Docker Swarm