Isolation Levels: READ COMMITTED Through SERIALIZABLE
Understand READ COMMITTED, REPEATABLE READ, and SERIALIZABLE isolation levels, read vs write anomalies, and SET TRANSACTION syntax.
Posts in technical
Vacuuming and Reindexing in PostgreSQL
PostgreSQL's MVCC requires regular maintenance. This guide explains dead tuples, VACUUM vs VACUUM FULL, autovacuum tuning, REINDEX strategies, and how to monitor bloat with pg_stat_user_tables.
Alerting in Production: Paging, Runbooks, and On-Call
Build effective alerting systems that wake people up for real emergencies: alert fatigue prevention, runbook automation, and healthy on-call practices.
Artifact Management: Build Caching, Provenance, and Retention
Manage CI/CD artifacts effectively—build caching for speed, provenance tracking for security, and retention policies for cost control.
Automated Testing in CI/CD: Strategies and Quality Gates
Integrate comprehensive automated testing into your CI/CD pipeline—unit tests, integration tests, end-to-end tests, and quality gates.
AWS CDK: Cloud Development Kit for Infrastructure
Define AWS infrastructure using TypeScript, Python, or other programming languages with the AWS Cloud Development Kit, compiling to CloudFormation templates.
AWS Core Services for DevOps: EC2, ECS, EKS, S3, Lambda
Navigate essential AWS services for DevOps workloads—compute (EC2, ECS, EKS), storage (S3), serverless (Lambda), and foundational networking.
Azure Core Services: VMSS, AKS, Blob Storage
Navigate Azure's core services for DevOps—Virtual Machine Scale Sets, Azure Kubernetes Service, Blob Storage, and managed databases.
Cloud Security: IAM, Network Isolation, and Encryption
Implement defense-in-depth security for cloud infrastructure—identity and access management, network isolation, encryption, and security monitoring.
Compliance Automation: SOC 2, PCI-DSS, and Audit Trails
Automate compliance evidence collection and continuous compliance monitoring for SOC 2, PCI-DSS, and other frameworks using policy-as-code.