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env_config.go
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/
env_config.go
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/*
* Copyright 2020 The Knative 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 config
import (
"fmt"
"github.com/kelseyhightower/envconfig"
"github.com/rickb777/date/period"
)
type Env struct {
DataPlaneConfigMapNamespace string `required:"true" split_words:"true"`
DataPlaneConfigMapName string `required:"true" split_words:"true"`
GeneralConfigMapName string `required:"true" split_words:"true"`
IngressName string `required:"true" split_words:"true"`
SystemNamespace string `required:"true" split_words:"true"`
DataPlaneConfigFormat string `required:"true" split_words:"true"`
DefaultBackoffDelay string `required:"false" split_words:"true"`
}
func GetEnvConfig(prefix string) (*Env, error) {
env := &Env{}
if err := envconfig.Process(prefix, env); err != nil {
return nil, fmt.Errorf("failed to process env config: %w", err)
}
if env.DefaultBackoffDelay != "" {
if isNotValidBackoffDelay(env.DefaultBackoffDelay) {
return nil, fmt.Errorf("invalid backoff delay: %s", env.DefaultBackoffDelay)
}
}
return env, nil
}
func (c *Env) DataPlaneConfigMapAsString() string {
return fmt.Sprintf("%s/%s", c.DataPlaneConfigMapNamespace, c.DataPlaneConfigMapName)
}
func isNotValidBackoffDelay(delay string) bool {
_, err := period.Parse(delay)
return err != nil
}