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configgenerator.go
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/
configgenerator.go
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package configsyncer
import (
"sort"
"strings"
"github.com/rancher/norman/controller"
"github.com/rancher/rancher/pkg/controllers/user/logging/generator"
"github.com/rancher/rancher/pkg/project"
"github.com/rancher/types/apis/core/v1"
mgmtv3 "github.com/rancher/types/apis/management.cattle.io/v3"
"github.com/pkg/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/labels"
)
func NewConfigGenerator(clusterName string, clusterLoggingLister mgmtv3.ClusterLoggingLister, projectLoggingLister mgmtv3.ProjectLoggingLister, namespaceLister v1.NamespaceLister) *ConfigGenerator {
return &ConfigGenerator{
clusterName: clusterName,
clusterLoggingLister: clusterLoggingLister,
projectLoggingLister: projectLoggingLister,
namespaceLister: namespaceLister,
}
}
type ConfigGenerator struct {
clusterName string
clusterLoggingLister mgmtv3.ClusterLoggingLister
projectLoggingLister mgmtv3.ProjectLoggingLister
namespaceLister v1.NamespaceLister
}
func (s *ConfigGenerator) GenerateClusterLoggingConfig(clusterLogging *mgmtv3.ClusterLogging, systemProjectID, certDir string) ([]byte, error) {
if clusterLogging == nil {
return []byte{}, nil
}
var excludeNamespaces string
if clusterLogging.Spec.IncludeSystemComponent != nil && !*clusterLogging.Spec.IncludeSystemComponent {
var err error
if excludeNamespaces, err = s.addExcludeNamespaces(systemProjectID); err != nil {
return nil, err
}
}
buf, err := generator.GenerateClusterConfig(clusterLogging.Spec, excludeNamespaces, certDir)
if err != nil {
return nil, err
}
return buf, nil
}
func (s *ConfigGenerator) GenerateProjectLoggingConfig(projectLoggings []*mgmtv3.ProjectLogging, systemProjectID, certDir string) ([]byte, error) {
if len(projectLoggings) == 0 {
allProjectLoggings, err := s.projectLoggingLister.List("", labels.NewSelector())
if err != nil {
return nil, errors.Wrapf(err, "List project loggings failed")
}
for _, logging := range allProjectLoggings {
if controller.ObjectInCluster(s.clusterName, logging) {
projectLoggings = append(projectLoggings, logging)
}
}
if len(projectLoggings) == 0 {
return []byte{}, nil
}
}
sort.Slice(projectLoggings, func(i, j int) bool {
return projectLoggings[i].Name < projectLoggings[j].Name
})
namespaces, err := s.namespaceLister.List(metav1.NamespaceAll, labels.NewSelector())
if err != nil {
return nil, errors.Wrap(err, "list namespace failed")
}
buf, err := generator.GenerateProjectConfig(projectLoggings, namespaces, systemProjectID, certDir)
if err != nil {
return nil, err
}
return buf, nil
}
func (s *ConfigGenerator) addExcludeNamespaces(systemProjectID string) (string, error) {
namespaces, err := s.namespaceLister.List(metav1.NamespaceAll, labels.NewSelector())
if err != nil {
return "", errors.Wrapf(err, "list namespace failed")
}
var systemNamespaces []string
for _, v := range namespaces {
if v.Annotations[project.ProjectIDAnn] == systemProjectID {
systemNamespaces = append(systemNamespaces, v.Name)
}
}
return strings.Join(systemNamespaces, "|"), nil
}