public static Type from(String typeName) {
            return switch (typeName) {
                case "admin" -> admin;
                case "container" -> container;
                case "content" -> content;
                case "combined" -> combined;
                default -> throw new IllegalArgumentException("Illegal cluster type '" + typeName + "'");
            };
        }
Returns whether this runs a container cluster
config-provisioning/src/main/java/com/yahoo/config/provision/ClusterSpec.java