Docker In Brief

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In brief

 Does Docker replace VM?
 What does it do?
 Is Docker useful for
developers or only for
system admins?
 What problems ...

 A virtual machine (VM) is an operating system or
application environment that is installed on software,
which imitates d...

 Docker is a tool designed to make it easier to create,
deploy, and run applications by using containers.
 Docker contai...

Virtual Machines Docker
Each VM has its own OS Shares the kernel with other
containers
Virtual machine images are
signific...

 Clearly—for DevOps and CI/CD initiatives—application portability and
consistency are crucial needs that Docker fulfills ...

 Use Docker as version control system for your entire app's operating system
 Use Docker when you want to distribute/col...

 The Amazon AMI Marketplace is the closest thing to the Docker Index that you
will find. With AMIs, you can only run them...

 The collaboration features (docker push and docker pull) are one of the most
disruptive parts of Docker.
 With Docker p...

It works on my
machine but
not on yours
I have been
helping the [new
hire] setup her
environment all
day
I can’t try it
be...

Create a local
Docker
container
Distribute it to
private or
public
collaborators
Enhance
collaboratively
Create a
producti...

 Container - a runtime instance of a Docker image.
 Image - an ordered collection of root filesystem changes and executi...

 Docker can build images automatically by reading the instructions from a
Dockerfile.
 A Dockerfile is a text document t...

FROM ubuntu
MAINTAINER MyName
RUN apt-get update
RUN apt-get install -y nginx
COPY index.html
/usr/share/nginx/html/
ENTRY...

Build An Image
$ docker build -t gvacca/nginx .
Store image in a registry
(public, e.g. Dockerhub, or
private)
$ docker pu...

 Docker Machine: Provides a CLI to quickly provision a Docker Host. Deploys
locally or on a Cloud Provider AWS, Azure, GC...

 Docker Hub is a cloud hosted service from Docker that provides registry
capabilities for public and private content.
 I...

Thank You!
mailto: ritukamthan@gmail.com

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