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api.go
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api.go
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// Copyright 2019 ArgoCD Operator Developers
//
// Licensed 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 argoutil
import (
"fmt"
"k8s.io/apimachinery/pkg/runtime/schema"
"k8s.io/client-go/discovery"
"k8s.io/client-go/kubernetes"
"sigs.k8s.io/controller-runtime/pkg/client/config"
)
// VerifyAPI will verify that the given group/version is present in the cluster.
func VerifyAPI(group string, version string) (bool, error) {
cfg, err := config.GetConfig()
if err != nil {
log.Error(err, "unable to get k8s config")
return false, err
}
k8s, err := kubernetes.NewForConfig(cfg)
if err != nil {
log.Error(err, "unable to create k8s client")
return false, err
}
gv := schema.GroupVersion{
Group: group,
Version: version,
}
if err = discovery.ServerSupportsVersion(k8s, gv); err != nil {
// error, API not available
return false, nil
}
log.Info(fmt.Sprintf("%s/%s API verified", group, version))
return true, nil
}