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kyverno/pkg/policy/common.go
Shivkumar Dudhani 5b8ab3842b
Support variable substitution (#549)
* initial commit

* variable substitution

* update tests

* update test

* refactor engine packages for validate & generate

* update vendor

* update toml

* support variable substitution in overlay mutation

* missing update

* fix indentation in logs

* store context values as single JSON document using merge patches.

* remove duplicate functions

* fix message string

* Handle processing of policies in background (#569)

* remove condition check while generating mutation patch as conditions are verified in the first iteration

* initial commit

* background policy validation

* correct message

* skip non-background policy process for add/update

* fix order to correct policy registration

* update comment

Co-authored-by: shuting <shutting06@gmail.com>

* refactor

Co-authored-by: shuting <shutting06@gmail.com>
2019-12-30 17:08:50 -08:00

34 lines
1.1 KiB
Go

package policy
import (
"fmt"
"github.com/golang/glog"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
"k8s.io/apimachinery/pkg/labels"
)
func buildPolicyLabel(policyName string) (labels.Selector, error) {
policyLabelmap := map[string]string{"policy": policyName}
//NOt using a field selector, as the match function will have to cast the runtime.object
// to get the field, while it can get labels directly, saves the cast effort
ls := &metav1.LabelSelector{}
if err := metav1.Convert_Map_string_To_string_To_v1_LabelSelector(&policyLabelmap, ls, nil); err != nil {
return nil, fmt.Errorf("failed to generate label sector of Policy name %s: %v", policyName, err)
}
policySelector, err := metav1.LabelSelectorAsSelector(ls)
if err != nil {
return nil, fmt.Errorf("Policy %s has invalid label selector: %v", policyName, err)
}
return policySelector, nil
}
func transformResource(resource unstructured.Unstructured) []byte {
data, err := resource.MarshalJSON()
if err != nil {
glog.Errorf("failed to marshall resource %v: %v", resource, err)
return nil
}
return data
}