utils/cluster.go

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package utils

import (
	"github.com/RHsyseng/operator-utils/pkg/utils/openshift"
	"k8s.io/client-go/rest"
)

var isOpenShift = false

// IsOpenShift is a global flag that can be safely called across reconciliation cycles, defined at the controller manager start.
func IsOpenShift() bool {
	return isOpenShift
}

// SetIsOpenShift sets the global flag isOpenShift by the controller manager.
// We don't need to keep fetching the API every reconciliation cycle that we need to know about the platform.
func SetIsOpenShift(cfg *rest.Config) {
	var err error
	isOpenShift, err = openshift.IsOpenShift(cfg)
	if err != nil {
		panic("Impossible to verify if the cluster is OpenShift or not: " + err.Error())
	}
}