75 lines
2.1 KiB
Go
75 lines
2.1 KiB
Go
/*
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Copyright 2018 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package audit
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import (
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"io/ioutil"
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"os"
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"path/filepath"
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"github.com/pkg/errors"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/runtime/serializer"
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"k8s.io/apiserver/pkg/apis/audit/install"
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auditv1 "k8s.io/apiserver/pkg/apis/audit/v1"
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kubeadmutil "k8s.io/kubernetes/cmd/kubeadm/app/util"
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)
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// CreateDefaultAuditLogPolicy writes the default audit log policy to disk.
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func CreateDefaultAuditLogPolicy(policyFile string) error {
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policy := auditv1.Policy{
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TypeMeta: metav1.TypeMeta{
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APIVersion: auditv1.SchemeGroupVersion.String(),
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Kind: "Policy",
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},
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Rules: []auditv1.PolicyRule{
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{
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Level: auditv1.LevelMetadata,
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},
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},
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}
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return writePolicyToDisk(policyFile, &policy)
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}
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func writePolicyToDisk(policyFile string, policy *auditv1.Policy) error {
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// creates target folder if not already exists
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if err := os.MkdirAll(filepath.Dir(policyFile), 0700); err != nil {
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return errors.Wrapf(err, "failed to create directory %q: ", filepath.Dir(policyFile))
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}
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scheme := runtime.NewScheme()
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// Registers the API group with the scheme and adds types to a scheme
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install.Install(scheme)
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codecs := serializer.NewCodecFactory(scheme)
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// writes the policy to disk
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serialized, err := kubeadmutil.MarshalToYamlForCodecs(policy, auditv1.SchemeGroupVersion, codecs)
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if err != nil {
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return errors.Wrap(err, "failed to marshal audit policy to YAML")
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}
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if err := ioutil.WriteFile(policyFile, serialized, 0600); err != nil {
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return errors.Wrapf(err, "failed to write audit policy to %v: ", policyFile)
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}
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return nil
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}
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