Installation on AWS

Prerequisites

  • Public Hosted Zone and map to DNS in Route 53 service
  • AWS Account with Programmatic Acesss and AdministratorAccess Policy included
  • Access Key ID of AWS Account
  • Secret Access Key Values of AWS Account
  • AWS Public regions for deploy Openshift Cluster
  • Pull secret from https://cloud.redhat.com
  • Internet Access during installation process
  • Generating a Key Pair for cluster node with SSH Access

Default CPU , memory and Disk sizing for Openshift node after finish deployment

Node Type vCPU Mem(GiB) Storage (GB)
Control Plane 4 16 100
Compute 2 8 100

Preparation

prepare the bastion server to install OpenShift Container Platform. This includes installing the AWS Command Line Interface , the OpenShift Installer , and the OpenShift CLI

  • Connect to your administration host

    ssh <user name>@bastion.<Domain Name>

  • Switch to root using the sudo command

    sudo -i

  • Install the AWS CLI Tool

    curl "https:/s3.amazonaws.com/aws-cli/awscli-bundle.zip" -o "awscli-bundle.zip"
    unzip awscli-bundle.zip
    ./awscli-bundle/install -i /usr/local/aws -b /bin/aws
    aws --version

  • Install OpenShift CLI Tools

    • Download OpenShift Installer and OpenShift Client (oc) from here

    • Install OpenShift Installer 

      tar zxvf <OpenShift-Installer> -C /usr/bin
chmod +x /usr/bin/openshift-install

    • Install OpenShift Client (oc)

      tar zxvf <OpenShift Client> -C /usr/bin
chmod +x /usr/bin/oc

    • Optional: setup bash completion

      openshift-install completion bash >/etc/bash_completion.d/openshift-install
oc completion bash >/etc/bash_completion.d/openshift

  • Set your AWS credentials to $HOME/.aws/credentials

Install OpenShift

  • Get pull secret from cloud.redhat.com

    • Login to cloud.redhat.com

      log in console

    • Navigate to OpenShift Menu->Create Cluster->Run it yourself->AWS (x86_64) on run it your self->Installer-provisioned-infrastructure

      click to aws x86_64

    • Copy pull secret

      click to copy pull secret

    • Save your pull secret for use later

  • Create an SSH keypair to be used for your Openshift environement

     ssh-keygen -f ~/.ssh/cluster-{Name}-key -N ''

  • Run OpenShift Installer for interactive installation

    openshift-install create cluster --dir <installation_directory>

  • Input your cluster configuration

      ? SSH Public Key /home/<user_name>/.ssh/cluster-{Name}-key.pub
  ? Platform aws
  INFO Credentials loaded from the "default" profile in file "/home/<user_name>/.aws/credentials"
  ? Region <your AWS Region>
  ? Base Domain <your AWS Domain>
  ? Cluster Name <your AWS Cluster Name>
  ? Pull Secret [? for help] 
  ***************************************************************************************************************************************************************

    Sample output

      INFO Creating infrastructure resources...
  INFO Waiting up to 20m0s for the Kubernetes API at https://api.cluster-e9eb.sandbox1409.opentlc.com:6443...
  INFO API v1.19.0+e49167a up
  INFO Waiting up to 30m0s for bootstrapping to complete...
  INFO Destroying the bootstrap resources...
  INFO Waiting up to 40m0s for the cluster at https://api.cluster-e9eb.sandbox1409.opentlc.com:6443 to initialize...
  INFO Waiting up to 10m0s for the openshift-console route to be created...
  INFO Install complete!
  INFO To access the cluster as the system:admin user when using 'oc', run 'export KUBECONFIG=/home/wkulhane-redhat.com/cluster-e9eb/auth/kubeconfig'
  INFO Access the OpenShift web-console here: https://console-openshift-console.apps.cluster-e9eb.sandbox1409.opentlc.com
  INFO Login to the console with user: kubeadmin, password: ***************
  INFO Time elapsed: 32m6s

  • set up the OpenShift CLI

    export KUBECONFIG=$HOME/cluster-{NAME}/auth/kubeconfig
echo "export KUBECONFIG=$HOME/cluster-{NAME}/auth/kubeconfig" >>$HOME/.bashrc

  • Validate your clusters

    • Check that you are cluster administrator

      oc whoami

      Output

      system:admin

    • Validate that all nodes have a status of Ready

      oc get nodes

      Output

      NAME                                         STATUS   ROLES    AGE   VERSION
ip-10-0-132-239.us-east-2.compute.internal   Ready    master   24m   v1.19.0+e49167a
ip-10-0-147-206.us-east-2.compute.internal   Ready    worker   17m   v1.19.0+e49167a
ip-10-0-169-195.us-east-2.compute.internal   Ready    worker   19m   v1.19.0+e49167a
ip-10-0-184-201.us-east-2.compute.internal   Ready    master   24m   v1.19.0+e49167a
ip-10-0-200-125.us-east-2.compute.internal   Ready    worker   19m   v1.19.0+e49167a
ip-10-0-212-189.us-east-2.compute.internal   Ready    master   24m   v1.19.0+e49167a

OpenShift Architecture

OpenShift Architecture

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