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Generic Kubernetes

Prerequisites for all Kubernetes

    Kubernetes Cluster requirements

    OpenServerless installs in any Kubernetes cluster which satisfies the following requirements:

    • cluster-admin access

    • at least 3 worker nodes with 4GB of memory each

    • support for block storage configured as default storage class

    • support for LoadBalancer services

    • the nginx ingress already installed

    • the cert manager already installed

    Once you have such a cluster, you need to retrieve the IP address of the Load Balancer associated with the Nginx Ingress. In the default installation, it is installed in the namespace nginx-ingress and it is called ingress-nginx-controller.

    In the default installation you can read the IP address with the following command:

    kubectl -n ingress-nginx get svc ingress-nginx-controller

    If you have installed it in some other namespace or with another name, change the command accordingly.

    The result should be something like this:

    NAME                       TYPE           CLUSTER-IP   EXTERNAL-IP    PORT(S)                      AGE
ingress-nginx-controller   LoadBalancer   10.0.9.99    20.62.156.19   80:30898/TCP,443:31451/TCP   4d1h

    Take note of the value under EXTERNAL-IP as you need it in the next step of installation, configuring DNS.