AWS Elastic Beanstalk

How would you perform a change to your ELB type in your Elastic Beanstalk Environment?

After an Elastic Beanstalk Environment the type of ELB cannot be changed and you must perform a Migration. 1. Create a new environment with the same config except for the ELB. 2. Deploy your application onto the new environment. 3. Shift the traffic to the new environment by doing a CNAME swap

Elastic Beanstalk Deployment that stops all instances, makes updates, and then restarts. fastest deployment option

All at once

Elastic Beanstalk Deployment that allows for canary testing. A temp ASG is created and a certain percentage of traffic is sent to that temp ASG. Temp ASG instances are migrated over to the main ASG.

Traffic Splitting

Used to direct a small percentage of traffic to a version so you can test and fall back if there're any issues.

Traffic Splitting

When do you use a Custom Platform with Beanstalk?

When the application is incompatible with Beanstalk and doesnt use Docker Built using the Packer Software

Used to schedule tasks with Elastic Beanstalk

cron.yaml file

The name of the configuration files for elastic beanstalk

.ebextensions

Elastic Beanstalk can store up to how many versions of your applications?

1000 application versions

Elastic Beanstalk uses what service to deploy/configure its applications

Cloud Formation

How can you configure additional resources to our Beanstalk environment.

Create an eleasticache.config file in the .ebextensions folder to add the configuration files

Elastic Beanstalk feature that enables you to do a copy of an entire environment. For example copy a Prod to create a new Test environment.

Elastic Beanstalk Cloning

Deployment mode where a full set of new instances running the new version of the application in a separate Auto Scaling Group is launched. To roll back quickly, this mode terminates the ASG holding the new application version, while the current one is untouched and already running at full capacity.

Immutable

Elastic Beanstalk Deployment that creates instances in new ASG. The instances are moved from the temporary ASG into the regular ASG. The older version instances are then removed from the ASG.

Immutable

Used to set the amount of versions based upon the age of the version or the amount of versions stored

Lifecycle Policy

Deployment mode which allows the continuously release of new features without application downtime and without incurring extra costs. A temporary decrease of the number of running instances occurs.

Rolling

Elastic Beanstalk Deployment that stops certain capacity and does the updates. Application is running below capacity and running both versions at the same time.

Rolling

Deployment mode which maintains full capacity to serve users

Rolling with Additional Batches

Elastic Beanstalk Deployment that creates additional instances with updates. removes instances and updates. keeps application always at capacity by creating additional instances.

Rolling with Additional Batches

Elastic Beanstalk mode best for when for development and saving costs

Single Instance Mode

Used to swap the environment URL (CNAME swap) to replace a prod with the current version of test.

Swap Environment URL