About Me

DevOps@RajeshKumar.XYZ

Overview

• This module:
  • Install Docker
  • Configure and launch container
  • Dockerfiles
  • Docker Hub

Overview

• Later modules:
  • Amazon ECS (EC2 Container Service)
    • tasks
    • file systems
    • repositories
  • Deploy web app to a cluster
  • AWS optimization
  • Docker Hub and EC2 Container Registry

Lab Setup Information

https://bootstrap-it.com/docker4aws

What Is Docker?

---

Type 1 Hypervisor

Type 2 Hypervisor

Containers

Docker Collaboration

Installing Docker on an EC2 Instance

---

• Install Docker on an EC2 Ubuntu instance
• Best security practices
• Launch "Hello World" container
• Docker command line

Running Docker from the Command Line

---

A Sample Dockerfile

• # Simple Dockerfile
• #
• FROM ubuntu:16.04
• RUN apt update
• RUN apt install -y apache2
• RUN echo "Welcome to my web site" > /var/www/html/index.html
• EXPOSE 80

• Launch Docker
• Pull and run Ubuntu image
• Create network interface
• Add interface to container

Working with Dockerfiles

---

Working with Docker Hub Images

---

Summary

Containers vs. Hypervisors

• Docker on AWS:
  • EC2 Container Service
  • Elastic Beanstalk
  • CloudFormation
  • Docker for AWS
  • Docker Datacenter for AWS

Summary

• apt install apt-transport-https ca-certificates
• apt install linux-image-extra-$(uname -r) linuximage- extra-virtual
• apt install docker-engine
• docker info
• docker run -it ubuntu bash
• docker network connect newnet newname
• nano dockerfile
• docker run -d -p 80:80 webserver /usr/sbin/apache2ctl -D FOREGROUND

Amazon ECS: Exploring the Environment

---

EC2 Container Service: Defining Terms

---

How ECS Works

Your EC2 instance running the Amazon ECS container agent has been registered into a cluster so that a task definition can be instantiated by a pre-configured service request and monitored until it's done.

Overview

• Understand ECS infrastructure elements
• Deploy an actual ECS application

Cluster Coordination

Summary

• Cluster design paradigms
  • high availability
  • scalability
  • load balancing
EC2 Container Service (ECS)
• cluster
• task
• service
• Identity and Access Management (IAM)

Amazon ECS: Building a Cluster Environment

---

Updated Dockerfile

• # Simple Dockerfile
• #
• FROM ubuntu:16.04
• RUN apt update
• RUN apt install -y apache2
• RUN echo "Welcome to my web site" > /var/www/html/index.html
• CMD /usr/sbin/apache2ctl -D FOREGROUND
• EXPOSE 80

Overview

• Launch EC2 instance
• Create IAM role
• Define task
• Create service
• Explore Command Line Interface (CLI)

Building an EC2 Container Service

---

ECS and the AWS Command Line Interface

---

Summary

• AmazonEC2ContainerServiceforEC2Role
• dbclinton/newserver
• /usr/sbin/apache2ctl -D FOREGROUND
• Cluster | Service | Events
• aws ecs describe-instances

Working with Docker Images and Registries

---

Updated Dockerfile

• # Simple Dockerfile
• #
• FROM ubuntu:16.04
• RUN apt update
• RUN apt install -y apache2
• RUN echo "Welcome to my web site" > /var/www/html/index.html
• CMD /usr/sbin/apache2ctl -D FOREGROUND
• EXPOSE 80

Overview

• Work with Docker Hub repositories
• Work with the Amazon EC2 Container Repository service
• Private Docker Hub repositories
  • ECS access

Working with Docker Hub Repositories

---

Configure ECS to Authenticate with Docker Hub

---

Amazon EC2 Container Registry (ECR)

---

• Create a repository
• Connect to a repository
• Apply a tag to an image
• Push to an ECR repository
• Pull into an ECS container

Summary

• docker login
• docker tag 1f9bd3ea1a9d dbclinton/newerserverdocker
• push dbclinton/newerserver
• nano /etc/ecs/ecs.config
• ECS_ENGINE_AUTH_TYPE=docker
• Amazon EC2 Container Registry (ECR)
• aws ecr get-login --region us-east-1

Course Review

---

Containers

Cluster Computing Goals

• High Availability
  • Providing for failover and replacement resources
• Scalability
  • Providing for added compute capacity on demand
• Load Balancing
  • Providing for intelligently routed network traffic

A Sample Dockerfile

• # Simple Dockerfile
• #
• FROM ubuntu:16.04
• RUN apt update
• RUN apt install -y apache2
• RUN echo "Welcome to my web site" > /var/www/html/index.html
• EXPOSE 80

Cluster Coordination

Cluster

questions?

Thanks for You

---