aws-elastic-beanstalk

Here We are, thank you for your time and interest going through this repo.
https://github.com/Mladen-Trampic-SRB-1989/aws-elastic-beanstalk

We are about to make fast pass through Elastic Beanstalk and docker deployment, hope you like my way of learning and sharing in the process.

Just me, setting up expectations right:

• Who am I ?
  • Working nomad and having loads of fun in process. [ Serbia -> Italy -> Ireland -> Austria ]
  • Proud father, husband, brother and humble son.
    In nutshell , not much free time, but many wishes and ideas.

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Hence, what is the idea here ?

• Deploy Web Application ( / Service ) / migrate to cloud with minimal effort, to move towards becoming Cloud Native[1].
• Requirements:
  • Fully managed service ( I want to focus on Development and code )
  • No additional pricing other than running resources
  • Future proof / extendable with CI/CD
  • ...

---

Ok, Cloud, Why Cloud and AWS?

Principle	Concepts
Agility	Innovation Speed for Experimentation / try and fail Fast
Elasticity	Scale on demand No overhead capacity ( What you need / When you need )
Flexibility	Low to no cost to entry Large portfolio of managed services / 3rd Party on Marketplace Regionalization : AWS now spans 69 Availability Zones within 22 geographic regions around the world.
Security	Shared responsibility model Industry standard certificiations to achieve different compliance requirements

• Natural habitat for DevOps and automation.

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Ok, what can it offer to me to achieve my requirements ?

Magical Answer:

• Elastic Beanstalk from AWS ?
  Hmm, Name of the service Beanstalk, reminds me on cartoon I used to love to watch when I was kid, Jack and the Beanstalk.
  ( Although, in 90's in Serbia there were not so many :D )
  • But wait, is this my magical beanstalk to the mythical castle of work life balance promised with DevOps automation and running stuff the cloud ?

Principle	Concepts
Agility	Fast to pick up Easy to play around time to deliver reduced Integration made easy
Elasticity	Plug and play autoscaling / HA of your app
Flexibility	Pay what you run Redeploy / Destroy Integrate with CI/CD via API's or CLI
Security	Best part of it, infrastructure security is managed for me

---

What do I have ?

• Critical branding CV Web Page running in complex datacenter, that often forces me to have sleepless nights.
  This happens during hype periods, when people are visiting my page seeking for more information about me, cuasing overload to my complex local resources, meaning - downtime. This makes my reputation to sustain unrecoverable damage. :-(
  Error 50* - Troubleshootng
  Meanwhile, my rep suffer @ http://mladen.trampic.info

---

How do I get to my idea ?

• Step 1 ofc get EB CLI[2]

  python3 -m venv /path/to/new/virtual/environment
  source elastic-beanstalk-cli/bin/activate
  pip install awsebcli
  eb --version

• Step 2 Initialize Application[3]

  eb init

  Interactive session...

  Select a default region
  1) us-east-1 : US East (N. Virginia)
  2) us-west-1 : US West (N. California)
  3) us-west-2 : US West (Oregon)
  4) eu-west-1 : EU (Ireland)
  5) eu-central-1 : EU (Frankfurt)
  6) ap-south-1 : Asia Pacific (Mumbai)
  7) ap-southeast-1 : Asia Pacific (Singapore)
  8) ap-southeast-2 : Asia Pacific (Sydney)
  9) ap-northeast-1 : Asia Pacific (Tokyo)
  10) ap-northeast-2 : Asia Pacific (Seoul)
  11) sa-east-1 : South America (Sao Paulo)
  12) cn-north-1 : China (Beijing)
  13) cn-northwest-1 : China (Ningxia)
  14) us-east-2 : US East (Ohio)
  15) ca-central-1 : Canada (Central)
  16) eu-west-2 : EU (London)
  17) eu-west-3 : EU (Paris)
  18) eu-north-1 : EU (Stockholm)
  19) ap-east-1 : Asia Pacific (Hong Kong)
  20) me-south-1 : Middle East (Bahrain)
  (default is 3): 5 <b># Hey I am Europian Guy</b>
  
  Enter Application Name
  (default is "demo"): mladen-trampic-cv
  Application mladen-trampic-cv has been created.
  
  Select a platform.
  1) Node.js
  2) PHP
  3) Python
  4) Ruby
  5) Tomcat
  6) IIS
  7) Docker
  8) Multi-container Docker
  9) GlassFish
  10) Go
  11) Java
  12) Packer
  13) Python (BETA)
  14) Corretto (BETA)
  15) Docker (BETA)
  (default is 1): 15
  Cannot setup CodeCommit because there is no Source Control setup, continuing with initialization
  Do you want to set up SSH for your instances?
  (Y/n): n

• Step 3 Setup my Dockerfile[4].

  cat > Dockerfile << EOF
  FROM mtrampic/resume
  EXPOSE 80
  EOF

• Step 4 Create

  eb create

  Interactive session...

  eb create
  Enter Environment Name
  (default is mladen-trampic-cv-dev): dev-env #Name environment
  Enter DNS CNAME prefix
  (default is dev-env): 
  
  Select a load balancer type
  1) classic
  2) application
  3) network
  (default is 2): 2 # Network L7 yay
  
  Would you like to enable Spot Fleet requests for this environment?
  (y/N): N # Spot instances don't fall under free tier ...
  Enter a list of one or more valid EC2 instance types separated by commas (at least two instance types are   recommended).
  (Defaults provided on Enter): t2.micro # Free tier ...
  
  Creating application version archive "app-200303_062332".
  Uploading mladen-trampic-cv/app-200303_062332.zip to S3. This may take a while.
  Upload Complete.
  Environment details for: dev-env
    Application name: mladen-trampic-cv
    Region: eu-central-1
    Deployed Version: app-200303_062332
    Environment ID: e-cihdcuasem
    Platform: arn:aws:elasticbeanstalk:eu-central-1::platform/(BETA) Docker running on 64bit Amazon Linux 2/0.1.1
    Tier: WebServer-Standard-1.0
    CNAME: dev-env.eu-central-1.elasticbeanstalk.com
    Updated: 2020-03-03 05:23:34.543000+00:00

• Step 5 Open

  eb open

• Future steps
  • Reconfigure DNS Server
  • Explore automation of everything, etc...

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So What happened in backend ?

* slide taken from https://www.slideshare.net/AmazonWebServices/paas-from-code-to-running-application-using-aws-elastic-beanstalk-dev323-aws-reinvent-2018/16

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Resources:

[1] - Cloud Native : https://en.wikipedia.org/wiki/Cloud_native_computing
[2] - EB CLI : https://docs.aws.amazon.com/elasticbeanstalk/latest/dg/eb-cli3-install-advanced.html
[3] - EB Init : https://docs.aws.amazon.com/elasticbeanstalk/latest/dg/eb3-init.html
[4] - My CV in Dockerhub : https://hub.docker.com/r/mtrampic/resume