DevOps & Deployment
Production infrastructure that actually holds
Nginx, Gunicorn, SSL, Cloudflare, CI/CD, and secure baseline configuration — configured for real workloads by a DevOps & deployment consultant. Part of MGR Ventures services. No cargo-culted configs, no mystery setup that breaks on the next push.
What I Set Up
A production server stack for Flask and Python applications — assembled so each piece has a clear job and a known failure mode.
Nginx Reverse Proxy
Nginx sits in front of your application to terminate SSL, serve static files directly, and forward dynamic requests to Gunicorn. Config includes proper headers, gzip, and sane timeout values — not the tutorial defaults.
Gunicorn WSGI Server
Gunicorn runs your Flask app with a worker pool sized to your server's resources. Worker class, concurrency, and timeout settings are tuned for your traffic profile — not copied from Stack Overflow.
systemd Service Units
Your application runs as a managed systemd service: automatic restarts on failure, clean start/stop semantics, and log output routed to journald so you have a consistent place to look when something goes wrong.
SSL & Cloudflare
Let's Encrypt certificates via Certbot with auto-renewal, or Cloudflare origin certificates for full end-to-end encryption. DNS, proxying, and caching rules set to match your actual traffic needs.
Environment & Secrets
Environment variables injected via systemd drop-ins or a secrets manager — never hardcoded, never in your repository. Separate configs for staging and production so deployments are predictable in both environments.
Deployments
Pushing to production should be boring. CI/CD turns "it worked on my machine" into a documented, repeatable process with a clear rollback path.
CI Pipeline
GitHub Actions or GitLab CI runs your tests, linting, and build steps on every push. Broken builds never reach the server. Pipeline config is kept lean and readable — not a 500-line YAML maze.
CD & Deployment Scripts
Automated deployment on merge to main: pull, install dependencies, run migrations, reload Gunicorn via systemd. Each step is logged and exits loudly on failure so you know exactly what happened.
Blue-Green & Rollback
For workloads that need zero-downtime deploys, a blue-green approach routes traffic between two environments while the inactive one updates. Git-tagged releases make rollbacks a single command, not a war room event.
Environment Parity
Staging mirrors production at the configuration level: same Nginx rules, same service units, same environment variable structure. Surprises at deploy time are almost always a parity problem — this eliminates most of them.
Observability
You can't fix what you can't see. A lightweight observability setup gives you signal before users start filing support tickets.
Structured Logging
Application logs routed to journald and optionally forwarded to a log aggregator. Request logs, error tracebacks, and slow-query output formatted so grep and tail actually tell you something useful.
Uptime Checks
External uptime monitoring via Uptime Robot, Better Uptime, or Cloudflare Health Checks. Alerts go to email or Slack before you hear about downtime from a customer.
Server Metrics
CPU, memory, disk, and network baselines established at launch. Optional integration with Prometheus and Grafana for teams that want dashboards. Lightweight setups skip the overhead and rely on systemd and OS-level tools.
Baseline Security
Baseline controls that reduce exposure without turning operations into a compliance project. For deeper review and a prioritized remediation report, see Security Audit & Hardening.
Least Privilege
Your application runs as a dedicated system user with no login shell and permissions scoped to exactly what it needs. Root is not involved in serving requests. Sudo access is minimized and logged.
Firewall Rules
UFW or iptables configured to allow only what's necessary: SSH on a non-default port (or locked to an IP allowlist), HTTP/HTTPS for web traffic, and nothing else inbound. Outbound rules tightened where your threat model warrants it.
SSH Hygiene
Password authentication disabled in favor of key-based login. SSH daemon hardened: no root login, algorithm preferences set, idle timeout configured. Fail2ban or equivalent rate-limiting active to blunt brute force.
Dependency & OS Updates
Unattended security upgrades enabled for OS packages. Application dependencies
pinned in a lockfile and reviewed at each deployment. No mystery
pip install --upgrade calls in production.
Related Technical Work
Deployment connects application code, infrastructure, and security controls. Each adjacent service covers a different layer of the same system.
Backend & API Development
Defines application behavior and data handling. Deployment ensures the API runs reliably under real traffic and process supervision.
Web Development
Produces the frontend and user interaction layer. Deployment provides caching, static asset delivery, and routing to make the interface responsive in production.
Security Audit & Hardening
Reviews exposure and attack surface. Deployment implements the runtime controls that enforce those security decisions.
Technical Consulting
Determines architecture and tradeoffs. Deployment executes the operational model chosen during planning.
Get your stack production-ready
Whether you're deploying a Flask app for the first time or untangling a brittle server that breaks on every deploy — send a note with where things stand. You'll get a clear plan, not a sales pitch. Related: Web Development, Backend & API Development, Security Audit & Hardening, and Technical Consulting.
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