postgres-operator/pkg/controller/util.go

125 lines
3.4 KiB
Go

package controller
import (
"fmt"
"hash/crc32"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/api/core/v1"
extv1beta "k8s.io/api/apps/v1beta1"
"github.com/zalando-incubator/postgres-operator/pkg/cluster"
"github.com/zalando-incubator/postgres-operator/pkg/spec"
"github.com/zalando-incubator/postgres-operator/pkg/util/config"
"github.com/zalando-incubator/postgres-operator/pkg/util/constants"
"github.com/zalando-incubator/postgres-operator/pkg/util/k8sutil"
)
func (c *Controller) makeClusterConfig() cluster.Config {
infrastructureRoles := make(map[string]spec.PgUser)
for k, v := range c.config.InfrastructureRoles {
infrastructureRoles[k] = v
}
return cluster.Config{
RestConfig: c.config.RestConfig,
OpConfig: config.Copy(c.opConfig),
InfrastructureRoles: infrastructureRoles,
}
}
func thirdPartyResource(TPRName string) *extv1beta.ThirdPartyResource {
return &extv1beta.ThirdPartyResource{
ObjectMeta: metav1.ObjectMeta{
//ThirdPartyResources are cluster-wide
Name: TPRName,
},
Versions: []extv1beta.APIVersion{
{Name: constants.TPRApiVersion},
},
Description: constants.TPRDescription,
}
}
func (c *Controller) clusterWorkerID(clusterName spec.NamespacedName) uint32 {
return crc32.ChecksumIEEE([]byte(clusterName.String())) % c.opConfig.Workers
}
func (c *Controller) createTPR() error {
tpr := thirdPartyResource(constants.TPRName)
_, err := c.KubeClient.ThirdPartyResources().Create(tpr)
if err != nil {
if !k8sutil.ResourceAlreadyExists(err) {
return err
}
c.logger.Infof("ThirdPartyResource %q is already registered", constants.TPRName)
} else {
c.logger.Infof("ThirdPartyResource %q' has been registered", constants.TPRName)
}
return k8sutil.WaitTPRReady(c.RestClient, c.opConfig.TPR.ReadyWaitInterval, c.opConfig.TPR.ReadyWaitTimeout, c.opConfig.Namespace)
}
func (c *Controller) getInfrastructureRoles(rolesSecret *spec.NamespacedName) (result map[string]spec.PgUser, err error) {
if *rolesSecret == (spec.NamespacedName{}) {
// we don't have infrastructure roles defined, bail out
return nil, nil
}
infraRolesSecret, err := c.KubeClient.
Secrets(rolesSecret.Namespace).
Get(rolesSecret.Name, metav1.GetOptions{})
if err != nil {
c.logger.Debugf("Infrastructure roles secret name: %q", *rolesSecret)
return nil, fmt.Errorf("could not get infrastructure roles secret: %v", err)
}
data := infraRolesSecret.Data
result = make(map[string]spec.PgUser)
Users:
// in worst case we would have one line per user
for i := 1; i <= len(data); i++ {
properties := []string{"user", "password", "inrole"}
t := spec.PgUser{}
for _, p := range properties {
key := fmt.Sprintf("%s%d", p, i)
if val, present := data[key]; !present {
if p == "user" {
// exit when the user name with the next sequence id is absent
break Users
}
} else {
s := string(val)
switch p {
case "user":
t.Name = s
case "password":
t.Password = s
case "inrole":
t.MemberOf = append(t.MemberOf, s)
default:
c.logger.Warnf("Unknown key %q", p)
}
}
}
if t.Name != "" {
result[t.Name] = t
}
}
return result, nil
}
func (c *Controller) podClusterName(pod *v1.Pod) spec.NamespacedName {
if name, ok := pod.Labels[c.opConfig.ClusterNameLabel]; ok {
return spec.NamespacedName{
Namespace: pod.Namespace,
Name: name,
}
}
return spec.NamespacedName{}
}