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Master GitHub Actions with reusable workflows, OIDC-based AWS authentication, matrix builds, and caching strategies to reduce build times and eliminate secrets management.
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GitOps principles, ArgoCD app-of-apps pattern, automated sync vs manual approval, sealed secrets, drift detection, rollback via git revert, progressive delivery with Argo Rollouts.- Published on
Unify logs, metrics, traces, and profiles in Grafana. Learn Prometheus recording rules, Loki LogQL, Tempo distributed tracing, and correlate signals for faster incident resolution.- Published on
Build federated GraphQL APIs across microservices. Learn Apollo Federation architecture, @key and @external directives, entity resolution, router configuration, performance with DataLoader, query planning, cost limits, and observability.- Published on
Build production gRPC services in Node.js. Learn Protocol Buffer schema design, server setup with @grpc/grpc-js, unary and streaming communication, interceptors for auth/logging, grpc-gateway for REST compatibility, health checking, and reflection for debugging.