A Comprehensive Guide Understanding Terraform’s basic building blocks is crucial for effective infrastructure management. This guide covers essential components and best practices for structuring your Terraform code. Core Building Blocks Provider Configuration Providers are your gateway to various cloud platforms. Here’s how to configure one: Variables Variables make your configurations Read more…
The Infrastructure as Code Tool Terraform has revolutionized how we manage cloud infrastructure. This powerful tool, created by HashiCorp, enables developers and operations teams to define infrastructure using code rather than clicking through cloud provider interfaces. Let’s dive into what makes Terraform essential for modern DevOps practices. What is Terraform? Read more…
Simplified Multi-Account Management AWS Control Tower provides a streamlined way to set up and govern a secure, multi-account AWS environment. This service automates the setup of baseline environments using AWS best practices, making it easier for enterprises to ensure compliance while maintaining agility. Core Benefits AWS Control Tower delivers three Read more…
Overview Scale EC2 groups based on CloudWatch Alarms using SQS capacity metrics Create CloudWatch Alarms Create scale-in and scale-out alarms using the SQS ApproximateNumberOfMessagesVisible metric Create AutoScaling policies Add/ Remove capacity units (EC2 instances) based on alarms Test using sample SQS sender and receiver scripts Setup Create an SQS queue — Read more…
Multi-AZ Deployments The main purpose is high availability – failover It happens automatically in the background It can be enabled on the database creation or after Synchronous replication (except for Aurora — asynchronous) Always span at least two Availability Zones within a single region Benefits include Enhanced durability Increased availability Read more…
Amazon Athena Overview Amazon Athena is an interactive query service (serverless) that allows analyzing data in Amazon S3 using SQL Athena used Data Catalogue that stores the S3 DDL Athena is based on Presto – an open-source, distributed SQL query engine optimized for low latency and ad-hoc data analysis with Read more…
Overview VPC Endpoint enables a private connection between VPC and AWS supported services (including S3, Athena, DynamoDB, ECS) and AWS Marketplace services (AWS PrivateLink-powered SaaS) Unlike VPC Endpoint – NAT Gateway uses the Internet Gateway and thus the public internet, impacting solution performance and cost VPC Endpoint VPC Endpoint enables Read more…
Overview An IAM Role is an IAM entity that defines a set of permissions for making AWS service requests. IAM roles are not associated with a specific user or group. Instead, trusted entities assume roles, such as IAM users, applications, or AWS services such as EC2. (what can I do?) An instance profile represents EC2 instances (who am I?). Instance profiles provide temporary credentials that are rotated Read more…
AWS Supported Database Types Hosted Services Relational (OLTP) Multiple database engine providers e.g. Amazon Aurora, SQL Server, Oracle Non-Relational (NoSQL) Amazon DynamoDB Data Warehouse (OLAP) Amazon Redshift Customer Installed “Bring Your Own License” (BYOL) Self-install/ configuration on EC2s Hosted Services AWS Relational Database Services (RDS) Amazon Aurora MySQL Amazon Aurora PostgreSQL Oracle Read more…
Overview Application and deployment services allow you to implement logic and code in the cloud Some services provide code execution, and others offer data analytics Selecting the appropriate service is essential and requires an understanding of its capabilities Lambda Service AWS compute service that runs code without servers Runs code Read more…