Docker Containers Basics

Introduction to Docker Containers

Transcript

1. DOCKER CONTAINERS BASICS CAMILO CORTES H
2. CAMILO ANDRES CORTES H. PUBLIC CLOUD & DEVOPS SME – MCP, MCTS, VCP CLOUDFIRSTCAMPUS BOARD MEMBER – COMMUNITY LEADER SYSADMIN CLOUD OPS STUDIO @GLOBANT facebook.com/vcach linkedin/cortescamilo @vcach_ops camilo.cortes@cloudfirstcamp.com
3. DOCKER CONTAINERS BASICS AGENDA ▸What is a Container? ▸Containers vs Virtual Machines ▸Docker Architecture ▸Docker Images ▸Docker Hub ▸How to run Containers ▸DEMO: Running a web server inside a Container ▸DEMO: Deploy a Web Application on Azure using Containers ▸Next Steps: Orchestrators - DevOps ▸Q & A
4. A container image is a lightweight, stand-alone, executable package of a piece of software that includes everything needed to run it: code, runtime, system tools, system libraries, settings. Docker WHAT IS A CONTAINER https://www.docker.com/what-docker
5. WHAT IS A CONTAINER
6. CONTAINERS VS VIRTUAL MACHINES CONTAINER VM
7. DOCKER ARCHITECTURE
8. DOCKER IMAGES A Docker image is built up from a series of layers. Each layer represents an instruction in the image’s Dockerfile. Each layer except the very last one is read-only. An image is an inert, immutable, file that's essentially a snapshot of a container. The’ll produce a container when started with “run”. Images are stored in a Docker registry such as “Docker Hub” When you download an image, it can then be used (as a template) to spin up multiple running Containers in your own environment.
9. DOCKER HUB Docker Hub is a cloud-based registry service which allows you to link to code repositories, build your images and test them, stores manually pushed images. It provides a centralized resource for container image discovery, distribution and change management, user and team collaboration, and workflow automation throughout the development pipeline. https://hub.docker.com
10. HOW TO RUN A CONTAINER AS EASY AS: Usage: docker container run [OPTIONS] IMAGE [COMMAND] [ARG…] EXAMPLE: Docker container run -n ContainerName -d -p 80:80 repository/imagename Docker container run -n proxy -d -p 80:80 nginx USE CASE: Run a Ubuntu container and install Python # Start a shell in Ubuntu. docker run -i -t ubuntu:14.04 /bin/bash # Install Python # and exit container. apt-get update apt-get install -y python3-pip exit
11. DEMO: RUNNING CONTAINERS
12. DEMO: RUN WEB APP ON AZURE USING CONTAINERS
13. ORCHESTRATORS - DEVOPS
14. ORCHESTRATORS - DEVOPS
15. Q & A
16. THANKS!!
17. facebook.com/vcach linkedin/cortescamilo @vcach_ops camilo.cortes@cloudfirstcamp.com CAMILO ANDRES CORTES H. PUBLIC CLOUD & DEVOPS SME – MCP, MCTS, VCP CLOUDFIRSTCAMPUS BOARD MEMBER – COMMUNITY LEADER SYSADMIN CLOUD OPS STUDIO @GLOBANT ‣