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utils.go
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utils.go
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//
// Copyright 2020 IBM Corporation
//
// 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 resources
import (
"encoding/json"
"fmt"
"io/ioutil"
"reflect"
"strings"
apiv1alpha1 "github.com/IBM/integrity-enforcer/integrity-verifier-operator/api/v1alpha1"
jwt "github.com/dgrijalva/jwt-go"
"github.com/ghodss/yaml"
v1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/util/strategicpatch"
)
var int420Var int32 = 420
func SecretVolume(name, secretName string) v1.Volume {
return v1.Volume{
Name: name,
VolumeSource: v1.VolumeSource{
Secret: &v1.SecretVolumeSource{
SecretName: secretName,
DefaultMode: &int420Var,
},
},
}
}
func EmptyDirVolume(name string) v1.Volume {
return v1.Volume{
Name: name,
VolumeSource: v1.VolumeSource{
EmptyDir: &v1.EmptyDirVolumeSource{},
},
}
}
func getOperatorServiceAccount() string {
tokenBytes, err := ioutil.ReadFile(apiv1alpha1.SATokenPath)
if err != nil {
return ""
}
tokenString := string(tokenBytes)
claimSeg := strings.Split(tokenString, ".")[1]
claimBytes, err := jwt.DecodeSegment(claimSeg)
if err != nil {
fmt.Println(err.Error())
return ""
}
var claimMap map[string]string
err = json.Unmarshal(claimBytes, &claimMap)
if err != nil {
fmt.Println(err.Error())
return ""
}
saUser, ok := claimMap["sub"]
if !ok {
return ""
}
return saUser
}
func MergeDefaultIntegrityVerifierCR(cr *apiv1alpha1.IntegrityVerifier, srcYamlPath string) *apiv1alpha1.IntegrityVerifier {
if srcYamlPath == "" {
srcYamlPath = apiv1alpha1.DefaultIVCRYamlPath
}
deafultCRBytes, _ := ioutil.ReadFile(srcYamlPath)
defaultCRJsonBytes, err := yaml.YAMLToJSON(deafultCRBytes)
if err != nil {
fmt.Println("failed to convert yaml2json; " + err.Error())
return cr
}
crJsonBytes, err := json.Marshal(cr)
if err != nil {
fmt.Println("failed to convert instance 2 yaml; " + err.Error())
return cr
}
crType := reflect.TypeOf(cr)
if crType.Kind() == reflect.Ptr {
crType = crType.Elem()
}
dataStruct := strategicpatch.PatchMetaFromStruct{T: crType}
mergedCRBytes, err := strategicpatch.StrategicMergePatchUsingLookupPatchMeta(defaultCRJsonBytes, crJsonBytes, dataStruct)
if err != nil {
fmt.Println("failed to StrategicMergePatch; " + err.Error())
return cr
}
var mergedCR *apiv1alpha1.IntegrityVerifier
err = json.Unmarshal(mergedCRBytes, &mergedCR)
if err != nil {
fmt.Println("failed to Unmarshal; " + err.Error())
return cr
}
return mergedCR
}