TIL, 2018-03-09

Musings

• I think I have to get better at testing like the implementation details of.
• When I’m sort of not motivated yet, I can do simple things first like read a book, browse Programming, Ruby, or Elixir subreddits, Hacker News, Indie Hackers.
• Wasn’t able to get to the React part of the day, but I’ll do it tomorrow.
• Hashicorp: Created Vagrant (that’s why it sounds familiar!), Vault, Terraform.
• I just moved lifelong-learning to a private repo, because of the copyright work commits.

A Cloud Guru

• New exam:
  • Design resilient architectures.
  • Define performant architectures.
  • Specify secure applications and architectures.
  • Design cost-optimized architectures.
  • Define operationally-excellent architectures.
  • 80 questions, results within 3 months, $75, valid for 2 years.
• Focus: AWS white papers.

History of AWS

• 2003: Paper on what Amazon’s internal infrastructure should look like,
• 2004: SQS.
• 2006: AWS.
• 2007: 180K developers on the platform.
• 2010: All of amazon moved over.
• 2013: Certification launched.
• 2015: Revenue: $6B USD.
• 2017: AI/VR services.

AWS: The 10K Foot Overview.

• AWS Global Infrastructure
  • 16 regions, 44 availability zones. 6 more regions/17 more AZ’s for 2018.
  • You will never be tested on numbers, etc. No rote learning.
  • Region: geographical area.
  • Availability zone: data center. They can survive natural disasters. At least 2 per region.
  • NA: US E (N Virginia), US W (Oregon)…
  • Edge locations: endpoints for AWS which are used to caching content. Typically, this consists of CloudFront. These are cached from physical locations close to the request.
• Compute:
  • EC2: Virtual machines in the AWS platform.
  • EC2 container services: where you manage Docker containers at scale.
  • Elastic Beanstalk: These provisions scalers, load balancers, etc, so focus just on the code.
  • Lambda: You upload and you wait for it to execute. Nothing to manage. All you worry about is your code.
  • Lightsail: Amazon’s VPS service. Provision you a server, a fixed IP address you can log in the server from, and it will give you SSH access/admin panel.
  • Batch: Batch computing in the cloud.
• Storage:
  • S3: Simple Storage Service, object-based, you have buckets, upload these in the cloud.
  • EFS: Elastic File System, network attached storage. We can put files in EFS and mount them onto virtual machines.
  • Glacier: Data archival.
  • Snowball: a way to bring a large amount of data into the data center. Like literally a physical box.
  • Storage gateway: Virtual machines that can replicate themselves onto the AWS cloud.
  • RDS: Relational database service. Anything.
  • DynamoDB: Non-relational database.
  • Elasticache: Stuff like “top 10 products”.
  • Red Shift: Data warehousing/business intelligence. Complex queries.