Chapter 7. Configuring the discovery image

Procedure

1. Create an Ignition file and specify the configuration specification version:

   $ vim ~/ignition.conf

   {
     "ignition": { "version": "3.1.0" }
   }

2. Add configuration data to the Ignition file. For example, add a password to the core user.

   1. Generate a password hash:

      $ openssl passwd -6

   2. Add the generated password hash to the core user:

      {
        "ignition": { "version": "3.1.0" },
        "passwd": {
          "users": [
            {
              "name": "core",
              "passwordHash": "$6$spam$M5LGSMGyVD.9XOboxcwrsnwNdF4irpJdAWy.1Ry55syyUiUssIzIAHaOrUHr2zg6ruD8YNBPW9kW0H8EnKXyc1"
            }
          ]
        }
      }

3. Save the Ignition file and export it to the IGNITION_FILE variable:

   $ export IGNITION_FILE=~/ignition.conf

Procedure

1. Create an ignition_config_override JSON object and redirect it to a file:

   $ jq -n \
     --arg IGNITION "$(jq -c . $IGNITION_FILE)" \
     '{ignition_config_override: $IGNITION}' \
     > discovery_ignition.json

2. Refresh the API token:

   $ source refresh-token

3. Patch the infrastructure environment:

   $ curl \
     --header "Authorization: Bearer $API_TOKEN" \
     --header "Content-Type: application/json" \
     -XPATCH \
     -d @discovery_ignition.json \
     https://api.openshift.com/api/assisted-install/v2/infra-envs/$INFRA_ENV_ID | jq

   The ignition_config_override object references the Ignition file.

4. Download the updated discovery image.