Help our Mythical Mysfits find their forever homes! Our Mythical stack is aging and needs to be revamped ASAP. Join this workshop to get hands-on experience with Docker as you containerize the Mythical monolithic application, start breaking it apart into microservices, and deploy it using AWS Fargate. This is a foundational workshop on containers. No Docker experience required. Basic AWS experience recommended. For more advanced workshops in this series, consider CON321 and CON322.

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Mythical Mysfits: Monolith to Microservice
with Docker and AWS Fargate
Ed Chan
Solutions Architect
AWS
C O N 2 1 4
Andy Mui
Solutions Architect
AWS

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Related Breakouts
Tuesday, Nov 27*
CON321-R1: Mythical Mysfits: DevSecOps with Docker and AWS Fargate
12:15pm – 2:30pm | MGM, Level 3, Premier Ballroom 320
Wednesday, Nov 28**
CON322-R: Mythical Mysfits: Management and Ops with AWS Fargate
11:30am – 1:45pm | Mirage, Mirage Event Center C1
* Repeat session if full – CON321-R2
** Repeat session if full – CON322-R1
See session catalog for times and locations.

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Agenda
Containers and Docker
Amazon Elastic Container Service (Amazon ECS)
AWS Fargate
Monolith to Microservices
Hands-on Lab

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Containers and Docker
A container is a standard unit of software that packages up code and all
its dependencies so the application runs quickly and reliably from one
computing environment to another.1
1 https://www.docker.com/resources/what-container
Server
Operating System
Docker Engine
AppA
AppB
AppC
AppD

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Docker Architecture
Docker daemon manages images, containers,
networks, and volumes
Docker CLI communicates with Docker daemon
through a REST API
Sample commands:
docker build – build image from Dockerfile
docker images – list images on Docker host
docker run – run an image
docker ps – list running containers
docker stop – stop a running container
Docker daemon /
REST API
Docker Host
Container 1
Container 2
Container n
Ubuntu Image
Nginx Image
Custom Image
Docker Client
Docker Registry
Docker
Hub

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Docker Image
Read-only template
Used to launch container
Start with base image, additional data or
dependencies added as layers
Union file system merges layers into
single image
Instructions documented in Dockerfile
kernel
Base Image
Image layer
Image layer
Image layer
References
parent image
layer

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Dockerfile
FROM dockerfile/ubuntu
RUN
add-apt-repository -y ppa:nginx/stable &&
apt-get update &&
apt-get install -y nginx &&
rm -rf /var/lib/apt/lists/* &&
echo "ndaemon off;" >> /etc/nginx/nginx.conf &&
chown -R www-data:www-data /var/lib/nginx
VOLUME ["/etc/nginx/sites-enabled",
"/etc/nginx/conf.d", "/var/log/nginx",
"/var/www/html"]
WORKDIR /etc/nginx
CMD ["nginx"]
EXPOSE 80
Pull base image
Install Nginx
Define mountable
directories
Define working
directory
Define default
command
Expose ports
yourimage:1.0.0
9c9e81692ae9
02071fceb21b
b35224abf821
fbc63d321d73
8c2e06607696
E7829950cee3

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Amazon ECS and AWS Fargate
Scheduling and Orchestration
Cluster Manager Placement Engine
Availability Zone 1 Availability Zone 2 Availability Zone 3
Container 1 Container 1
Container 1 Container 1
Container 1 Container 1
Container 1 Container 1
Container 1 Container 1
Container 1 Container 1
Container 1 Container 1
Container 1 Container 1
Container 1 Container 1

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Amazon ECS Constructs
Cluster
• Resource grouping and isolation
• IAM permissions boundary
Service
• Maintains desired # of
running tasks
• Replaces unhealthy tasks
• ELB integration
Task
• Running instance of a task
definition
• One or more containers
Task Definition
• Template used by Amazon ECS
to launch tasks
• Parallels to docker run
parameters
• Defines requirements – e.g.
• CPU/Memory
• Container image(s)
• Logging
• IAM role
Container 1
Container 1
Container 1
Container 1Container 1
{ ; }
JSON

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Task Definition
{
"containerDefinitions": [
{
"memory": 128,
"portMappings": [
{
"hostPort": 80,
"containerPort": 80,
"protocol": "tcp"
}
],
"essential": true,
"name": "nginx-container",
"image": "nginx",
"logConfiguration": {
"logDriver": "awslogs",
"options": {
"awslogs-group": "ecs-log-streaming",
"awslogs-region": "us-west-2",
"awslogs-stream-prefix": "fargate-task-1"
}
},
"cpu": 0
}
],
…continued…
"networkMode": "awsvpc",
"executionRoleArn":
"arn:aws:iam::123456789012:role/ecsTaskExecutionRole",
"memory": "2048",
"cpu": "1024",
"requiresCompatibilities": [
"FARGATE"
],
"family": "example_task_1"
}

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Microservices
“A software architecture style in which complex applications are
composed of small, independent processes communicating with each
other using language-agnostic APIs. These services are small, highly
decoupled and focus on doing a small task, facilitating a modular
approach to system-building.” –Wikipedia
Further reading:
https://martinfowler.com/articles/microservices.html

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Monolith to Microservices
https://www.martinfowler.com/bliki/StranglerApplication.html

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Hands-on Lab
www.mythicalmysfits.com

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Our mission: Ethical, mythical creature care.
Our priority: Find homes for the abandoned, and often misunderstood, mythical creatures in our
community.
Help us find their forever homes!
Your mission: Modernize and innovate on the Mythical stack.
Lab 1: Containerize the monolithic application
Lab 2: Deploy containers using AWS Fargate
Lab 3: Scale and lay the foundation for microservices with an AWS Application Load Balancer (ALB)
Lab 4: Our developers completed Project Cuddle which adds a “like” feature to the application. Since we
want to move to a microservices design, help us break this functionality from the monolith and deploy it
with AWS Fargate as its own containerized microservice.
Welcome to Mythical Mysfits

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Lab 1: Build/Test Monolith Docker Image
VPC
AWS Cloud
Public subnet Private subnet
users

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Lab 2: Deploy with Fargate
VPC
AWS Cloud
Public subnet Private subnet
users

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Lab 3: Scale with ALB
VPC
AWS Cloud
Private subnet Private subnet
users
/

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Lab 4: Deploy ”Like” Microservice
VPC
AWS Cloud
Private subnet Private subnet
users
/ + /fulfill-like
/like
/fulfill-like
/fulfill-like

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Instructions:
http://www.mythicalmysfits.com/fargate
Raise your hand if you have any questions. Feel free to work together with folks at
your table. Near the end, we’ll hand out AWS credit codes to cover costs for the
workshop.
High-five your neighbors and have fun! Please fill out feedback forms and follow
the clean-up instructions once you are done!
Email us with comments/questions/feedback:
aws-mythical-mysfits@amazon.com
Logistics

21. Thank you!
© 2018, Amazon Web Services, Inc. or its affiliates. All rights reserved.

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