/* Copyright 2015 The Kubernetes Authors. 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 http://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 env import ( "os" "strconv" ) // GetEnvAsStringOrFallback returns the env variable for the given key // and falls back to the given defaultValue if not set func GetEnvAsStringOrFallback(key, defaultValue string) string { if v := os.Getenv(key); v != "" { return v } return defaultValue } // GetEnvAsIntOrFallback returns the env variable (parsed as integer) for // the given key and falls back to the given defaultValue if not set func GetEnvAsIntOrFallback(key string, defaultValue int) (int, error) { if v := os.Getenv(key); v != "" { value, err := strconv.Atoi(v) if err != nil { return defaultValue, err } return value, nil } return defaultValue, nil } // GetEnvAsFloat64OrFallback returns the env variable (parsed as float64) for // the given key and falls back to the given defaultValue if not set func GetEnvAsFloat64OrFallback(key string, defaultValue float64) (float64, error) { if v := os.Getenv(key); v != "" { value, err := strconv.ParseFloat(v, 64) if err != nil { return defaultValue, err } return value, nil } return defaultValue, nil }