ForgeOps

Kubernetes cluster creation

ForgeRock provides Terraform artifacts for Amazon EKS cluster creation. Use them when you deploy the CDM. After deploying the CDM, you can use your cluster as a sandbox to explore ForgeRock Identity Platform customization.

When you create a project plan, you’ll need to identify your organization’s preferred infrastructure-as-code solution, and create your own cluster creation automation scripts, if necessary.

Here are the steps the ForgeOps Team followed to create a Kubernetes cluster on Amazon EKS:

  1. Create a cluster using Terraform artifacts in the forgeops-extras repository:

    1. Change to the directory that contains Terraform artifacts:

      $ cd /path/to/forgeops-extras/terraform

    2. Run the tf-apply script to create your cluster:

      $ ./tf-apply

      Respond yes to the Do you want to perform these actions? prompt.

      When the tf-apply script finishes, it issues a message that provides the path to a kubeconfig file for the cluster.

      The script creates:

      • The EKS cluster

      • The fast storage class

      • The ds-snapshot-class volume snapshot class

      The script deploys:

      • An ingress controller

      • Certificate manager

  2. Set your Kubernetes context to reference the new cluster by setting the KUBECONFIG environment variable as shown in the message from the tf-apply command’s output.

  3. To verify the tf-apply script created the cluster, log in to the AWS console. Access the console panel for the Amazon Elastic Kubernetes Service, and then list the EKS clusters. The new cluster should appear in the list of Kubernetes clusters.

  4. Get the ingress controller’s FQDN from the EXTERNAL-IP column of the kubectl get services command output:

    $ kubectl get services --namespace ingress-nginx
NAME                                 TYPE           CLUSTER-IP     EXTERNAL-IP                                    PORT(S)                      AGE
ingress-nginx-controller             LoadBalancer   10.100.43.88   k8s-ingress ...elb.us-east-1.amazonaws.com   80:30005/TCP,443:30770/TCP   62s
ingress-nginx-controller-admission   ClusterIP      10.100.2.215   <none>                                         443/TCP                      62s

  5. Run the host command to get the ingress controller’s external IP addresses. For example:

    $ host k8s-ingress ...elb.us-east-1.amazonaws.com
k8s-ingress ...elb.us-east-1.amazonaws.com has address 3.210.123.210
k8s-ingress ...elb.us-east-1.amazonaws.com has address 3.208.207.77
k8s-ingress ...elb.us-east-1.amazonaws.com has address 44.197.104.140

    Depending on the state of the cluster, between one and three IP addresses appear in the host command’s output.

  6. Configure hostname resolution for the ingress controller:

    1. Choose an FQDN (referred to as the deployment FQDN) that you’ll use when you deploy the ForgeRock Identity Platform, and when you access its GUIs and REST APIs.

      Examples in this documentation use cdm.example.com as the deployment FQDN. You are not required to use cdm.example.com; you can specify any FQDN you like.

    2. If DNS does not resolve your deployment FQDN, add an entry to the /etc/hosts file that maps the ingress controller’s external IP address to the deployment FQDN. For example:

      3.210.123.210 cdm.example.com

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