Docker_tech_guild ppt.ppt technical guild

Just a description of docker

1. Docker

2. Content
Docker
Virtual Machine
Difference b\w Docker and VM
Advantage
Docker Files
Docker Image
Docker Containers

3. Docker
Docker is an open platform for developing,
shipping, and running applications.
Docker enables you to separate your
applications from your infrastructure so you
can deliver software quickly.
With Docker, you can manage your
infrastructure in the same ways you manage
your applications.
Docker reduce the delay between writing code
and running it in production.

4. DOCKER ARCHITECTURE

5. Why docker?
Virtual Machine
A virtual machine is capable of performing
tasks such as running applications and
programs
A host can have several virtual machines
running at a specific time.
Docker containers are much smaller and
require far fewer resources than a VM.
The lightweight architecture of Docker
containers is less resource-intensive than
virtual machines.

6. The docker containers are suited for situations
where you want to run multiple applications
over a single operating system

7. Difference between Docker and VM
DOCKER VIRTUAL MACHINE
Boot-Time Boots in a few seconds.It takes a few minutes
for VMs to boot.
Runs on Dockers make use of the
execution engine.
VMs make use of the
hypervisor .
Memory Efficiency No space is needed to
virtualize, hence less
memory.
Requires entire OS to be
loaded before starting
the surface, so less
efficient.
Deployment Deploying is easy as only
a single image,
containerized can be
used across all
platforms.
Deployment is
comparatively lengthy as
separate instances are
responsible for
execution.

8. Advantage
App run separately from each other (Isolate
from each other)
Less OS maintenance.
Efficient.
Fast deployment.
Docker provides speed & efficiency over the
traditional virtualized hardware.
Each & every separate app have their own
dependencies.

9. Example For Docker

16. How Docker Works?
Three different stages for containers working in a
dockerized environment.
Docker Image
Docker Containers
Dockerfile

17. Docker Images
# docker pull nginx

18. List docker images
# docker images

19. Docker container
Clones/Copy the above docker image and
make it as a containers which is then ready to
execute.
Create Docker Container
#docker run -d --name clx_server1 -p 80:80 nginx:latest

20. Docker container
List running Docker containers
# docker ps
List all Docker containers
# docker ps –a

21. Start Container
Start a Container
# docker start clx_server1
Stop a Container
# docker stop clx_server1

22. Docker File

23. Build Docker File
Build docker image from Dockerfile
# docker build -t webserver .

24. Thank You