Configure Domain Name Service resolution IBM® Cloud Private Cloud Foundry

After you install IBM Cloud Private Cloud Foundry, you must set up domain name resolution.

You must add the two domains that you use in your IBM Cloud Private Cloud Foundry installation, bluemix_env_domain and bluemix_apps_domain in file uiconfig.yml, to your company's DNS server. This process involves associating a wildcard domain to an IP address. If you use a load balancer in front of IBM Cloud Private Cloud Foundry, assign the wildcard domain to the load balancer's IP address. You can also set up a private, stand-alone DNS Server.

For a developer installation or if no load balancer is available, you can point the wildcard domain addresses to either of the IP addresses that are listed for router_static_ips in the uiconfig.yml file.

Private stand-alone DNS requirements:

1. The Private DNS will resolve the two IBM Cloud Private Cloud Foundry domains: management & application default.
2. The Private DNS recurses to the Enterprise DNS and optionally the Internet DNS services. This allows for internal and external name resolution.

Enterprise and developer mode DNS load balancing options:

• A load balancer can be used to direct traffic from IBM Cloud Private Cloud Foundry domains, to the IP addresses listed in router_static_ips.
• If your DNS supports load balancing, traffic from IBM Cloud Private Cloud Foundry domains can be resolved to any of the IP addresses listed in router_static_ips.

Wildcard domains

1. In most DNS Server systems, a domain object is created,
2. Then, an A record is created in the domain with * and the IP address of the load balancer or one of the router_static_ips.