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OpenShift Network Calculator

Overview The OpenShift Network Calculator helps you determine the network requirements for your OpenShift cluster, specifically designed for clusters using the OVN-Kubernetes Container Network Interface (CNI). This tool calculates the number of pods, services, and nodes your network configuration can support, and identifies potential network conflicts with OVN-Kubernetes reserved networks. Proper network planning is critical when deploying OpenShift clusters, as incorrect CIDR ranges can lead to IP address exhaustion, network conflicts, or connectivity issues.

Limit Egress with Google Secure Web Proxy

In this guide, we will implement egress restrictions for OpenShift Dedicated by using Google’s Secure Web Proxyexternal link (opens in new tab) . Secure Web Proxy is a cloud first service that helps you secure egress web traffic (HTTP/S). OpenShift Dedicated relies on egress being allowed to specific fully qualified domain names (FQDNs), not just IP addresses. Secure Web Proxy provides support for limiting egress web traffic to the FQDNs necessary for the external endpoints that OpenShift Dedicated relies on.

Limit Egress with Google Cloud NGFW Standard

In this guide, we will implement egress restrictions for OpenShift Dedicated by using Google’s Cloud Next Generation Firewall (NGFW) Standardexternal link (opens in new tab) . Cloud NGFW is a fully distributed firewall service that allows fully qualified domain name (FQDN) objects in firewall policy rules. This is necessary for many of the external endpoints that OpenShift Dedicated relies on. The ability to restrict egress traffic using a firewall or other network device is only supported with OpenShift Dedicated clusters deployed using Google Private Service Connect (not yet generally available).

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