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package controllers
import (
"context"
"fmt"
"k8s.io/apimachinery/pkg/api/errors"
v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/types"
"regexp"
"sigs.k8s.io/controller-runtime/pkg/client"
"strconv"
"strings"
)
var httpRe *regexp.Regexp
var pathRe *regexp.Regexp
var portRe *regexp.Regexp
func Hostify(in string) string {
port := 80
if strings.HasPrefix(in, "https://") {
port = 443
}
out := httpRe.ReplaceAllString(in, "")
out = pathRe.ReplaceAllString(out, "")
if portRe.MatchString(out) {
return out
}
return out + ":" + strconv.Itoa(port)
}
func ObjectName(om v1.ObjectMeta, name string) string {
return fmt.Sprintf("%s-%s", om.Name, name)
}
func ObjectNamespacedName(om v1.ObjectMeta, name string) types.NamespacedName {
return types.NamespacedName{
Name: ObjectName(om, name),
Namespace: om.Namespace,
}
}
func ObjectMeta(om v1.ObjectMeta, name string, labels map[string]string) v1.ObjectMeta {
return v1.ObjectMeta{
Name: ObjectName(om, name),
Namespace: om.Namespace,
Labels: labels,
}
}
type Creator func() client.Object
type ReaderWriter interface {
client.Reader
client.Writer
}
func GetOrCreateResource(
ctx context.Context,
client ReaderWriter,
creator Creator,
name types.NamespacedName,
proto client.Object,
) (bool, error) {
err := client.Get(ctx, name, proto)
if err == nil {
return false, nil
}
if errors.IsNotFound(err) {
err = client.Create(ctx, creator())
if err != nil {
return false, err
}
return true, nil
}
return false, err
}
func init() {
httpRe = regexp.MustCompile("^http(s)?://")
pathRe = regexp.MustCompile("/(.*)$")
portRe = regexp.MustCompile(":([\\d]+)$")
}