NGINX 502 Bad Gateway: Causes and Fixes
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Why NGINX returns 502 Bad Gateway — upstream timeouts, wrong upstream addresses, FastCGI/PHP-FPM failures, plus SELinux gotchas, with fixes.
All Articles - DeployHQ Blog
Displaying posts 1–12 of 343 in total
Dockerize a Node.js App: A Production-Ready Walkthrough
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Dockerize a Node.js app with a production-ready multi-stage Dockerfile — non-root user, proper signal handling, layer caching, and deploy integration.
Essential Linux Server Commands for Deployment
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Disk space, memory, processes, logs — the Linux server commands you reach for before, during, and after every deployment, plus a health-check script.
How to Check Your Ubuntu (or Any Linux) Version from the Command Line
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Check your Ubuntu or Linux version from the command line with lsb_release, /etc/os-release, or hostnamectl. Reference + when to use each.
Choosing a Linux Distro for Production Deployments: Ubuntu, Debian, AlmaLinux, RHEL
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Ubuntu, Debian, AlmaLinux, or RHEL? Pick the right Linux distribution for production servers based on support windows, packages, and deployability.
Self-Host n8n on a VPS: Docker, HTTPS, and Git-Based Updates
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Self-host n8n on a VPS with Docker, Postgres, and HTTPS — then version your workflows in Git and push updates with one-click rollback.
Tie every Honeybadger error to the DeployHQ deploy that caused it
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Every error in Honeybadger should tell you which DeployHQ release caused it. Wire deploy markers, regression detection, and one-click rollback.
Heroku alternatives in 2026: DeployHQ + your VPS vs Render vs Railway vs Fly.io
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Heroku is in sustaining mode. Compare Render, Railway, Fly.io, and DeployHQ + your own VPS — pricing, lock-in, and when each one wins.
Spec-Kit and Copilot Workspaces: Where Deployment Fits in Spec-Driven AI Development
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Spec-Kit and Copilot Workspaces stop at the PR. Here is what spec-driven AI development looks like end to end — and where DeployHQ closes the loop.
DeployHQ CLI: Deploy From Your Terminal (or Let Your AI Agent Do It)
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Install the DeployHQ CLI (dhq) once and ship from your terminal — or wire it into Claude Code, Cursor, and Codex so your AI agent can deploy for you.
New DeployHQ integrations: Linear, Google Chat, Telegram, and signed webhooks
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Five new DeployHQ integrations push deploy status to GitHub, GitLab, Bitbucket, Linear releases, Google Chat, Telegram, and signed HTTP webhooks.
Deploy Hermes Agent on a VPS: DeployHQ Workflow + How It Differs from OpenClaw
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Walk through deploying Hermes Agent on a VPS with DeployHQ, plus how its self-improving skills differ from OpenClaw's lighter gateway model.