Dockerization

Docker Compose for Production: You Don't Always Need Kubernetes

Not every project needs Kubernetes. For single-server deployments, Docker Compose with proper health checks, restart policies, resource limits, and a deploy strategy gives you 90% of the reliability at 10% of the complexity. We build production Compose stacks that run reliably without an orchestration layer.

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When Compose Beats Kubernetes

Kubernetes is the right choice for multi-region, multi-team, dynamically scaling workloads. It is the wrong choice for a 3-service SaaS running on a single $50/month VPS. The operational overhead of maintaining a K8s cluster — etcd backups, control plane upgrades, RBAC policies, ingress controllers — is not justified for most early-stage products.

Docker Compose with proper configuration handles restart on failure, health-based dependency ordering, resource constraints, log rotation, and rolling updates. It deploys in seconds, not minutes, and the entire stack definition fits in one readable YAML file.

Our Production Compose Configuration

Every production Compose file we deliver includes:

Health checks: Every service gets a healthcheck with test, interval, timeout, retries, and start_period. Dependent services use depends_on: { db: { condition: service_healthy } }.
Restart policies: restart: unless-stopped for app services, restart: always for infrastructure (DB, Redis).
Resource limits: deploy.resources.limits with cpus and memory to prevent any single service from starving others.
Logging: logging: driver: json-file with max-size: 10m and max-file: 3 to prevent disk exhaustion.
Networks: Separate frontend and backend networks so the database is not accessible from the web-facing service's network.

Zero-Downtime Deploy Strategy

We implement zero-downtime deploys with Compose using a blue-green pattern:

Pull the new image: docker compose pull
Scale up new containers: docker compose up -d --no-deps --scale app=2 app
Wait for health check to pass on the new container
Scale down to 1: docker compose up -d --no-deps --scale app=1 app

Alternatively, we use a simple deploy script with Nginx upstream reloads. The script builds the new image, starts a new container on a different port, verifies the health check, switches the Nginx upstream, and removes the old container. Total downtime: zero.

What You Get

Production docker-compose.yml with health checks, restart policies, and resource limits
Network isolation between frontend and backend services
Log rotation configuration preventing disk exhaustion
Zero-downtime deploy script (bash or Makefile)
Systemd unit file to start Compose on boot
Monitoring integration with Prometheus and Grafana (optional)

Why Anubiz Engineering

100% async — no calls, no meetings

Delivered in days, not weeks

Full documentation included

Production-grade from day one

Security-first approach

Post-delivery support included

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Skip the research. Tell us what you need, and we'll scope it, implement it, and hand it back — fully documented and production-ready.

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