Ship to a single Docker host without dropping a request. This guide wires up docker-rollout for blue-green cutovers, readiness healthchecks and graceful draining, Traefik routing that follows container health, and expand/contract migrations that never break the running version.
"The app feels slow" is not a diagnosis. This post turns it into one using a Flask app with four planted performance problems and the profiling tools that expose each. i.e (snakeviz, query logs, py-spy, tracemalloc).
Every search box starts life as ILIKE '%term%' with no ranking, no stemming and no index. Before you reach for Elasticsearch, Postgres ships a real search engine: one generated column, one GIN index, and a 1400ms query drops to 8ms. Here's the full build, through to SQLAlchemy.
In order to be observable, systems must report their own behavior. This article covers metrics, logs, context propagation and traces, and implementation using FastAPI with OpenTelemetry, Prometheus, and structlog.
Radius search, geofencing, and map serving as indexed SQL. A production-focused guide to PostGIS: what it is, how to deploy it, and how to use it from SQLAlchemy
Token storage is a critical security choice. This article compares JWT bearer tokens, opaque session cookies, and JWTs in HttpOnly cookies—weighing revocation, XSS, and CSRF trade-offs—with FastAPI reference implementations for each.
Pre-signed URLs give clients direct access to private storage without sharing credentials or proxying bytes through your servers. Here's what they are, the problems they solve, the trade-offs to watch for (leakage, no revocation, size limits), and working implementations for S3, R2, and GCS.
uv replaces pip, venv, pip-tools, pyenv, and pipx with one fast binary. Here's why developers are switching — and how to make the move.
A full walkthrough of the Gitflow branching model — feature, release, and hotfix branches, with the actual commands and the gotchas that bite people later.
A tutorial on how to setup and configure Domain Name Server (DNS) setting for your self-hosted Ghost publication