Month: January 2020

AWS CodeDeploy deployment configuration types

Posted on by Viet Luu

When the Deployment Group of AWS CodeDeploy is created, users need to configure the rules that determine how fast an application will be deployed which is also called the “Deployment Configuration“: CodeDeployDefault.LambdaAllAtOnce (Shifts all traffic to the new Lambda functions at once) CodeDeployDefault.LambdaLinear10PercentEvery10Minutes (Shifts 10 percent of traffic every 10 minutes) CodeDeployDefault.LambdaCanary10Percent5Minutes (Shifts 10 percent…

AWS Elastic Beanstalk container command

Posted on by Viet Luu

You can use the container_commands key to execute commands that affect your application source code. Container commands run after the application and web server have been set up and the application version archive has been extracted, but before the application version is deployed. Non-container commands and other customization operations are performed prior to the application source code…

AWS Auto Scaling suspend AddToLoadBalancer

Posted on by Viet Luu

If you suspend AddToLoadBalancer, Auto Scaling launches the instances but does not add them to the load balancer or target group. If you resume the AddToLoadBalancer process, Auto Scaling resumes adding instances to the load balancer or target group when they are launched. However, Auto Scaling does not add the instances that were launched while this process…

AWS Auto Scaling Terminate policy

Posted on by Viet Luu

The default termination policy is designed to help ensure that your network architecture spans Availability Zones evenly. When using the default termination policy, Auto Scaling selects an instance to terminate as follows: Auto Scaling determines whether there are instances in multiple Availability Zones. If so, it selects the Availability Zone with the most instances and…

AWS Security Token Service (STS)

Posted on by Viet Luu

The AWS Security Token Service (STS) is a web service that enables you to request temporary, limited-privilege credentials for AWS Identity and Access Management (IAM) users or for users that you authenticate (federated users). The token can then be used to grant access to the objects in S3. You can then provides access to the…

AWS CodeBuild build spec files

Posted on by Viet Luu

AWS CodeBuild service has used buildspec files as a collection of build commands and related settings. Its details can be found in https://docs.aws.amazon.com/codebuild/latest/userguide/build-spec-ref.html By default, the build spec file is named as buildspec.yml. However, this file name can be overridden by other names, which can be done by AWS CLI

What is AWS AutoScaling?

Posted on by Viet Luu

Auto Scaling helps you ensure that you have the correct number of Amazon EC2 instances available to handle the load for your application. You create collections of EC2 instances, called Auto Scaling groups. You can specify the minimum number of instances in each Auto Scaling group, and Auto Scaling ensures that your group never goes below…

To migrate data between encrypted and unencrypted AWS EBS volumes

Posted on by Viet Luu

To migrate data between encrypted and unencrypted volumes. Create your destination volume (encrypted or unencrypted, depending on your need). Attach the destination volume to the instance that hosts the data to migrate. Make the destination volume available by following the procedures in Making an Amazon EBS Volume Available for Use. For Linux instances, you can…