# Set Up Tools to Make DOKS Cluster Operationally Ready – DigitalOcean Documentation

> Set up tools, such as nginx and Cert-Manager, to make operationally-ready DOKS clusters.
- [DOKS Operational Readiness, Part 1: Install the NGINX Ingress Controller](https://docs.digitalocean.com/products/kubernetes/getting-started/operational-readiness/install-nginx-ingress-controller/index.html.md): Install the NGINX ingress controller and configure HTTP rules for the two deployed backend services.
- [DOKS Operational Readiness, Part 2: Enable HTTPS](https://docs.digitalocean.com/products/kubernetes/getting-started/operational-readiness/enable-https/index.html.md): Configure production-ready TLS certificates with Cert-Manager using the HTTP-01 challenge.
- [DOKS Operational Readiness, Part 3: Configure Wildcard Certificates](https://docs.digitalocean.com/products/kubernetes/getting-started/operational-readiness/configure-wildcard-certificates/index.html.md): Configure production-ready TLS certificates with Cert-Manager using the DNS-01 challenge to support wildcard certificates.