How to Deploy a Flask App on Heroku in 2026: Step-by-Step Guide
Learn how to deploy a Flask app on Heroku in 2026. Step-by-step guide covering Procfile, Gunicorn, runtime.txt, Postgres, env vars, and common errors.
Emily Carter is a Cloud Cost Analyst and certified FinOps Practitioner based in Toronto with 7 years of experience auditing and reducing cloud infrastructure spend for engineering teams across North America. She has reviewed infrastructure bills for over 60 startups and growth-stage companies, surfacing hidden costs in everything from Heroku dyno configurations to Railway compute credits to AWS RDS multi-AZ redundancy that nobody turned off. Emily is a FinOps Foundation certified practitioner and has built cost modelling frameworks used by three venture-backed startups to reduce monthly cloud spend by an average of 41% without changing a single line of application code. She is fluent in the fine print, the per-unit charges, the free tier expiration schedules, and the egress fees that don't show up until the end of month. At Kuberns, Emily writes about cloud pricing: what platforms actually cost when you factor in everything, where competitors bury the expensive stuff, and how to evaluate a deployment platform not just on monthly price but total cost of engineering ownership.
Learn how to deploy a Flask app on Heroku in 2026. Step-by-step guide covering Procfile, Gunicorn, runtime.txt, Postgres, env vars, and common errors.
Learn how to deploy a Node.js app on Heroku in 2026 with this step-by-step guide. Plus, discover a faster alternative that skips the CLI entirely.