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[release-1.0] Use SecurityContextConstraints resource to identify OCP environment #410

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merged 1 commit into from
Jun 3, 2024
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[release-1.0] Use SecurityContextConstraints resource to identify OCP environment #410

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31 changes: 22 additions & 9 deletions controllers/common/utils/kubernetes/common.go
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,8 @@ import (
"fmt"
"os"
"path/filepath"
ctrllog "sigs.k8s.io/controller-runtime/pkg/log"
"sync"

v13 "github.com/openshift/api/operator/v1"
"k8s.io/apimachinery/pkg/runtime/schema"
Expand Down Expand Up @@ -66,17 +68,28 @@ func ContainerMode() (bool, error) {
return false, nil
}

var onceIsOpenshift sync.Once
var isOpenshift bool

func IsOpenShift(client client.Client) bool {
_, err := client.RESTMapper().ResourceFor(schema.GroupVersionResource{
Group: "image.openshift.io",
Version: "v1",
Resource: "image",
// atomic
onceIsOpenshift.Do(func() {
log := ctrllog.Log.WithName("IsOpenshift")
_, err := client.RESTMapper().ResourceFor(schema.GroupVersionResource{
Group: "security.openshift.io",
Resource: "SecurityContextConstraints",
})
if err != nil {
// continue with non-ocp standard
log.Info("no")
log.V(1).Info(err.Error())
isOpenshift = false
return
}
isOpenshift = true
log.Info("yes")
})
if err != nil {
// continue with non-ocp standard
return false
}
return true
return isOpenshift
}

func CalculateHostname(ctx context.Context, client client.Client, svcName, ns string) (string, error) {
Expand Down
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