Having 12+ Years of Experience in Software Development
Understanding the Blue-Green Deployment Pattern The blue-green deployment strategy is a method for reducing downtime and risk by running two identical production environments, referred to as “Blue” and “Green.” At any given time, only one environment is live, serving production traffic. The other environment is idle, used for deployment and testing. Once the new version […]
Establishing a MongoDB Replica Set for High Availability A robust disaster recovery strategy for MongoDB hinges on a well-configured replica set. This ensures data redundancy and automatic failover in case of node failure. We’ll focus on a three-node replica set deployed across different DigitalOcean availability zones for maximum resilience. First, ensure MongoDB is installed on […]
Automated Redis Failover with Sentinel and C++ Client Integration Achieving high availability for critical services like Redis is paramount. For a robust disaster recovery strategy, automated failover is non-negotiable. This section details the architecture for an automated Redis failover using Redis Sentinel, coupled with a C++ client application designed to gracefully handle these transitions. Redis […]
Terraform Provider Configuration for Linode To begin provisioning infrastructure on Linode using Terraform, we first need to configure the Linode provider. This involves specifying your Linode API token. It’s crucial to manage this token securely, ideally using environment variables rather than hardcoding it directly into your Terraform configuration files. This prevents accidental exposure of sensitive […]
Proactive Health Checks for Perl Applications Maintaining the health of Perl applications, especially those serving critical functions, requires more than just basic process monitoring. We need to implement application-level health checks that go beyond simply verifying if the process is running. This involves checking internal states, resource utilization specific to the application’s logic, and its […]
Proactive C++ Application Health Checks with Systemd For a C++ application running on OVH infrastructure, robust health checking is paramount. We’ll leverage systemd’s capabilities to ensure our application is not only running but also responsive and healthy. This involves defining a custom systemd service unit that includes health check mechanisms. First, let’s define a basic […]
Proactive Perl Application Health Checks with Nagios Core Maintaining the stability of a Perl application, especially one serving critical functions, requires more than just basic process monitoring. We need to ensure the application is not only running but also responding correctly to requests and not experiencing internal errors. Nagios Core, a venerable but powerful monitoring […]
Establishing a Robust CI/CD Pipeline for Custom WordPress REST API Endpoints Enterprise-grade WordPress deployments often necessitate custom REST API endpoints to facilitate seamless integration with external systems or to power decoupled headless frontends. Automating the deployment of these custom endpoints, alongside decoupled themes, requires a sophisticated CI/CD strategy that leverages WordPress’s inherent extensibility through action […]
Establishing a MongoDB Replica Set for High Availability A robust disaster recovery strategy for MongoDB hinges on a properly configured replica set. This ensures data redundancy and automatic failover in case of node failure. We’ll focus on a three-node replica set, a common and effective configuration for production environments, deployed on OVH’s Public Cloud instances. […]
Designing for Resilience: Elasticsearch Auto-Failover with Python Orchestration Achieving true high availability for critical services like Elasticsearch requires more than just redundant instances; it demands an automated failover strategy. This post details a robust approach to architecting auto-failover for Elasticsearch clusters deployed on DigitalOcean, orchestrated by a Python application that monitors cluster health and initiates […]