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Beginning the cluster installation and generating the Discovery ISO

Begin installing the {product-title} cluster in the {oda-first} environment by using the {hybrid-console}.

Procedure

  1. Log in to the {hybrid-console}.

  2. On the Cluster List page, click Create cluster.

  3. Click the Datacenter tab.

  4. Under Assisted Installer, click Create cluster.

  5. Configure your cluster on the Cluster details page:

    1. Enter a name for the cluster in the Cluster name field.

    2. Enter a base domain for the cluster in the Base domain field. All subdomains for the cluster will use this base domain.

      Note

      The base domain must be a valid DNS name. You must not have a wildcard domain set up for the base domain.

    3. Select a version from the OpenShift version dropdown list. By default, the dropdown list displays the latest version.

    4. Optional: In the Number of control plane nodes field, select the number of control plane nodes for your installation from the dropdown menu. The default value is 3.

    5. Optional: Select the Include custom manifests checkbox if you want to upload custom manifests to further configure your cluster. This option adds an additional page for custom manifests that you use later in the configuration process.

      Important

      If you have already added custom manifests, clearing the Include custom manifests checkbox automatically deletes them all. You must confirm the deletion.

    6. Click Next to continue. Once you proceed to the next page, you cannot go back to change any of these cluster details.

  6. Choose additional Operators to install on the Operators page:

    1. If you want to install an Operator bundle, select an option in the Bundles section.

    2. If you want to install only some Operators, select the individual Operators from the Single Operators section.

    3. Click Next to continue.

  7. Upload an SSH public key and generate the Discovery ISO:

    1. Click the Add Hosts button in the Host Discovery page.

    2. Upload an SSH public key in the SSH public key section so that you can connect to the cluster nodes as the core user. If you do not already have an SSH public key, see "Generating a key pair for cluster node SSH access" for more information.

    3. Select Show proxy settings.

    4. Enter values for the HTTP proxy URL, HTTPS URL proxy, and No proxy domains fields.

    5. Click Generate Discovery ISO.

  8. Copy the command from the Command to download the ISO field and run the command as a root user in the {oda-short} environment.

    Example command
    # wget -O discovery_image_example.iso 'https://api.openshift.com/api/assisted-images/bytoken/eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJleHAiOjE3Njg0Mjc3MDIsInN1YiI6ImNhMzZjZWU1LTQ3ZWEtNDc0Ny05OTg5LTVhZTYyMmMzMjZlNSJ9.jl-HvaxBR-WX73vpxO-Fy65bmY-RE5iL6AqL0wbWCmE/4.20/x86_64/minimal.iso'