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gke.go
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gke.go
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// Copyright 2022 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Package gke implements Google Kubernetes Engine specific features like cluster discovery
package gke
import (
"fmt"
"regexp"
)
func GetClusterID(project string, location string, name string) string {
return fmt.Sprintf("projects/%s/locations/%s/clusters/%s", project, location, name)
}
func MustSliceClusterID(id string) (string, string, string) {
p, l, c, err := SliceAndValidateClusterID(id)
if err != nil {
panic("invalid cluster id: " + err.Error())
}
return p, l, c
}
func SliceAndValidateClusterID(id string) (string, string, string, error) {
r := regexp.MustCompile(`projects/(.+)/(locations|zones)/(.+)/clusters/(.+)`)
if !r.MatchString(id) {
return "", "", "", fmt.Errorf("input %q does not match regexp", id)
}
matches := r.FindStringSubmatch(id)
if len(matches) != 5 {
return "", "", "", fmt.Errorf("wrong number of matches, got %d, expected %d", len(matches), 5)
}
return matches[1], matches[3], matches[4], nil
}