postgres-operator/pkg/apis/acid.zalan.do/v1/util.go

94 lines
2.5 KiB
Go

package v1
import (
"fmt"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"regexp"
"strings"
"time"
)
var (
weekdays = map[string]int{"Sun": 0, "Mon": 1, "Tue": 2, "Wed": 3, "Thu": 4, "Fri": 5, "Sat": 6}
serviceNameRegex = regexp.MustCompile(serviceNameRegexString)
)
func (p *Postgresql) Clone() *Postgresql {
if p == nil {
return nil
}
return p.DeepCopy()
}
func parseTime(s string) (metav1.Time, error) {
parts := strings.Split(s, ":")
if len(parts) != 2 {
return metav1.Time{}, fmt.Errorf("incorrect time format")
}
timeLayout := "15:04"
tp, err := time.Parse(timeLayout, s)
if err != nil {
return metav1.Time{}, err
}
return metav1.Time{Time: tp.UTC()}, nil
}
func parseWeekday(s string) (time.Weekday, error) {
weekday, ok := weekdays[s]
if !ok {
return time.Weekday(0), fmt.Errorf("incorrect weekday")
}
return time.Weekday(weekday), nil
}
func extractClusterName(clusterName string, teamName string) (string, error) {
teamNameLen := len(teamName)
if len(clusterName) < teamNameLen+2 {
return "", fmt.Errorf("name is too short")
}
if teamNameLen == 0 {
return "", fmt.Errorf("team name is empty")
}
if strings.ToLower(clusterName[:teamNameLen+1]) != strings.ToLower(teamName)+"-" {
return "", fmt.Errorf("name must match {TEAM}-{NAME} format")
}
if len(clusterName) > clusterNameMaxLength {
return "", fmt.Errorf("name cannot be longer than %d characters", clusterNameMaxLength)
}
if !serviceNameRegex.MatchString(clusterName) {
return "", fmt.Errorf("name must confirm to DNS-1035, regex used for validation is %q",
serviceNameRegexString)
}
return clusterName[teamNameLen+1:], nil
}
func validateCloneClusterDescription(clone *CloneDescription) error {
// when cloning from the basebackup (no end timestamp) check that the cluster name is a valid service name
if clone.ClusterName != "" && clone.EndTimestamp == "" {
if !serviceNameRegex.MatchString(clone.ClusterName) {
return fmt.Errorf("clone cluster name must confirm to DNS-1035, regex used for validation is %q",
serviceNameRegexString)
}
if len(clone.ClusterName) > serviceNameMaxLength {
return fmt.Errorf("clone cluster name must be no longer than %d characters", serviceNameMaxLength)
}
}
return nil
}
func (status PostgresStatus) Success() bool {
return status != ClusterStatusAddFailed &&
status != ClusterStatusUpdateFailed &&
status != ClusterStatusSyncFailed
}
func (status PostgresStatus) String() string {
return string(status)
}