mirror of
https://github.com/kubernetes-sigs/external-dns.git
synced 2025-08-06 01:26:59 +02:00
111 lines
3.3 KiB
Go
111 lines
3.3 KiB
Go
/*
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Copyright 2017 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package validation
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import (
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"errors"
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"fmt"
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"k8s.io/apimachinery/pkg/labels"
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"sigs.k8s.io/external-dns/pkg/apis/externaldns"
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)
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// ValidateConfig performs validation on the Config object
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func ValidateConfig(cfg *externaldns.Config) error {
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// TODO: Should probably return field.ErrorList
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if cfg.LogFormat != "text" && cfg.LogFormat != "json" {
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return fmt.Errorf("unsupported log format: %s", cfg.LogFormat)
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}
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if len(cfg.Sources) == 0 {
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return errors.New("no sources specified")
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}
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if cfg.Provider == "" {
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return errors.New("no provider specified")
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}
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// Azure provider specific validations
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if cfg.Provider == "azure" {
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if cfg.AzureConfigFile == "" {
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return errors.New("no Azure config file specified")
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}
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}
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// Akamai provider specific validations
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if cfg.Provider == "akamai" {
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if cfg.AkamaiServiceConsumerDomain == "" && cfg.AkamaiEdgercPath != "" {
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return errors.New("no Akamai ServiceConsumerDomain specified")
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}
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if cfg.AkamaiClientToken == "" && cfg.AkamaiEdgercPath != "" {
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return errors.New("no Akamai client token specified")
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}
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if cfg.AkamaiClientSecret == "" && cfg.AkamaiEdgercPath != "" {
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return errors.New("no Akamai client secret specified")
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}
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if cfg.AkamaiAccessToken == "" && cfg.AkamaiEdgercPath != "" {
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return errors.New("no Akamai access token specified")
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}
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}
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if cfg.Provider == "dyn" {
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if cfg.DynUsername == "" {
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return errors.New("no Dyn username specified")
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}
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if cfg.DynCustomerName == "" {
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return errors.New("no Dyn customer name specified")
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}
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if cfg.DynMinTTLSeconds < 0 {
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return errors.New("TTL specified for Dyn is negative")
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}
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}
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if cfg.Provider == "rfc2136" {
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if cfg.RFC2136MinTTL < 0 {
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return errors.New("TTL specified for rfc2136 is negative")
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}
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if cfg.RFC2136Insecure && cfg.RFC2136GSSTSIG {
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return errors.New("--rfc2136-insecure and --rfc2136-gss-tsig are mutually exclusive arguments")
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}
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if cfg.RFC2136GSSTSIG {
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if cfg.RFC2136KerberosPassword == "" || cfg.RFC2136KerberosUsername == "" || cfg.RFC2136KerberosRealm == "" {
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return errors.New("--rfc2136-kerberos-realm, --rfc2136-kerberos-username, and --rfc2136-kerberos-password are required when specifying --rfc2136-gss-tsig option")
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}
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}
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if cfg.RFC2136BatchChangeSize < 1 {
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return errors.New("batch size specified for rfc2136 cannot be less than 1")
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}
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}
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if cfg.IgnoreHostnameAnnotation && cfg.FQDNTemplate == "" {
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return errors.New("FQDN Template must be set if ignoring annotations")
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}
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if len(cfg.TXTPrefix) > 0 && len(cfg.TXTSuffix) > 0 {
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return errors.New("txt-prefix and txt-suffix are mutual exclusive")
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}
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_, err := labels.Parse(cfg.LabelFilter)
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if err != nil {
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return errors.New("--label-filter does not specify a valid label selector")
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}
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return nil
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}
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