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Docker complete presentation related to all
- 1. "Docker: Containerization for Development and Deployment" DevOps Training
- 2. ➔ DevOps Engineer with proficiency in AWS & Azure cloud services along with DevOps tools like Docker, Kubernetes,Terraform, Ansible etc ➔ Experience in automating infrastructure provisioning, configuration management, and application deployments. ➔ Proficient in implementing efficient CI/CD pipelines for software delivery and release management About Me
- 3. Presentation Outline ❖ Introduction to Docker ❖ Containerization vs Virtualization ❖ Docker Images and Containers ❖ Docker Architecture & its components ❖ Docker commands, Docker registry ❖ Docker File ❖ Docker Compose ❖ Docker Networking ❖ Docker Volumes ❖ Conclusion
- 4. What is Docker ? ● Docker is an OS-level virtualization software platform that enables developers and IT administrators to create, deploy and run applications in a Docker Container with all their dependencies ● A container is a lightweight, standalone executable package that includes everything needed to run an application, including the code, system tools, libraries, and dependencies. ● Containers provide a consistent and isolated environment for applications to run, ensuring that they behave the same regardless of the underlying infrastructure. What is a Container ?
- 5. Containers vs virtual machines ● Operating System Components: - Kernel Layer - Application
- 6. Containers vs virtual machines Virtual Machine: - Abstraction of physical hardware - Each VM includes a full copy of an OS Containers: - Abstraction at the app layer - Multiple containers share the OS kernel
- 7. Containers vs virtual machines
- 8. Benefits of Docker: • Improved application portability and consistency. • Efficient resource utilization through containerization and kernel sharing. • Faster application startup and scaling. • Simplified application deployment and management. • Versioning and reproducibility: Container images can be versioned, providing a consistent environment for running applications and ensuring reproducibility
- 9. Docker Image vs Docker Container
- 10. Docker Architecture & its components
- 11. • Docker Engine is the core component of the Docker platform. It is responsible for building, running, and managing Docker containers. • It includes the Docker daemon (dockerd), which runs on the host machine, and the Docker client (docker), which allows users to interact with the Docker daemon through the command line or API Docker Architecture & its components
- 12. Docker Architecture & its components - 2
- 13. Docker Commands ● docker run: creates a container from an image ● docker pull: pull images from the docker repository ● docker start: starts one or more stopped container ● docker stop: stops a running container ● docker images: lists all the locally stored docker images ● docker ps: lists the running containers ● docker ps -a: show all the running and exited containers
- 14. Docker Registry ● A Docker Registry is a centralized repository that stores and manages Docker images. ● Docker registries enable the distribution, storage, and retrieval of container images, facilitating seamless deployment across different environments.
- 15. Docker File ● A simple text file that consists of instructions to build Docker images ● Each instruction in a Dockerfile results in an Image Layer:
- 16. Docker Network
- 17. Docker Network
- 18. Docker Network
- 19. Docker Compose ● Docker Compose is a tool for defining and running multiple docker containers ● Can maintain and update configuration more easily than with docker run command ● Docker Compose automatically creates a common docker network for docker containers in it (--net option in docker run
- 21. Docker Volumes • Volumes are the way to persist data generated by and used by Docker containers • Docker manages data within the docker container using Docker Volumes.