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Rocket.Chat on Kubernetes (AKS GitOps + TLS + Cost Controls)

Rocket.Chat on AKS with Argo CD, Helm, TLS, external secrets, and scheduled scale-down windows.

Historical deployment. The hosted environment has been retired; source and recorded evidence remain available.

Rocket.Chat on Kubernetes (AKS GitOps + TLS + Cost Controls) recorded evidence
Recorded project evidence. The case study below describes the implementation and its limits.

Kubernetes · Helm · AKS · ArgoCD · Traefik · cert-manager · MongoDB · NATS · External Secrets · Prometheus · Grafana

Overview

Sandbox Rocket.Chat deployment on Kubernetes designed for hands-on platform operations and SRE-style troubleshooting workflows.

Source

Deployment status

The hosted sandbox has been retired. This case study describes the earlier deployment.

What is included

  • Helm deploy, upgrade, and rollback workflows
  • Ingress routing and TLS via NGINX Ingress + cert-manager
  • Resource sizing, health checks, and recovery drills
  • Troubleshooting notes: logs, events, probes, config validation

Notes

Sandbox/lab environment. No production SLO or uptime claim.

Outcomes

Helm-based Rocket.Chat sandbox on Kubernetes with TLS ingress and documented troubleshooting steps.

Challenges and solutions

Challenges

  • Providing a realistic Rocket.Chat deployment that is safe to run as a sandbox
  • Hardening ingress exposure with TLS while keeping internal services private by default
  • Documenting operational workflows for upgrades, failures, and common recovery tasks
  • Keeping the setup reproducible and easy to iterate on during learning and testing

Solutions

  • Standardized Helm deployment patterns with repeatable values and upgrade steps
  • Used NGINX Ingress + cert-manager for TLS and controlled external exposure
  • Kept internal services private (ClusterIP) and exposed only what is necessary
  • Added operational guardrails: probes, resource requests/limits, and clear troubleshooting steps

Technology stack

Kubernetes

Kubernetes · Helm

Networking

NGINX Ingress · cert-manager · TLS

Data

MongoDB

Observability

Prometheus (optional) · Grafana (optional)

Application

Rocket.Chat