mirror of
https://github.com/kubernetes-sigs/external-dns.git
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71723bdd5b
* Add RecordTTL * Route53: test for custom TTL * Fix tests * Fix remaining tests * Add ttl when endpoint is created from ingress * Missed a word * Fix bad refactoring * Add ingress custom TTL test * gofmt * Satisfy go-lint * Unshadow `endpoint` in azure provider * Fix and add an output test * Add TTL for endpoints generated from service templates * Take TTL into account when generating update plan * Tests for TTL change impact on the plan * Refactor factory method name * Refactoring * Run gofmt * Make endpoint string format look like BIND config * Update plan and plan_test * Replace NewEndpointWithTTLValue with NewEndpointWithTTL in aws * Remove NewEndpointWithTTLValue func * Update references to TTL * Remove getTTLValue func * Handle merge conflict * Update tests * Update README, CHANGELOG and documentation * Run gofmt * Move getTTLFromAnnotations to a common file * Refactor getTTLFromAnnotations * Gofmt * Add tests for getTTLFromAnnotations * Trigger build * Add boilerplate header * Update README/CHANGELOG according to code review * Add ttl.md and link it from README * change CNAME string to endpoint.RecordTypeCNAME * fix test cases with AWS ALIAS records, these do not behave different in these tests
85 lines
2.4 KiB
Go
85 lines
2.4 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 endpoint
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import (
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"fmt"
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"strings"
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)
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const (
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// OwnerLabelKey is the name of the label that defines the owner of an Endpoint.
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OwnerLabelKey = "owner"
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// RecordTypeA is a RecordType enum value
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RecordTypeA = "A"
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// RecordTypeCNAME is a RecordType enum value
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RecordTypeCNAME = "CNAME"
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// RecordTypeTXT is a RecordType enum value
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RecordTypeTXT = "TXT"
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)
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// TTL is a structure defining the TTL of a DNS record
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type TTL int64
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// IsConfigured returns true if TTL is configured, false otherwise
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func (ttl TTL) IsConfigured() bool {
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return ttl > 0
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}
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// Endpoint is a high-level way of a connection between a service and an IP
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type Endpoint struct {
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// The hostname of the DNS record
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DNSName string
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// The target the DNS record points to
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Target string
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// RecordType type of record, e.g. CNAME, A, TXT etc
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RecordType string
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// TTL for the record
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RecordTTL TTL
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// Labels stores labels defined for the Endpoint
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Labels map[string]string
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}
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// NewEndpoint initialization method to be used to create an endpoint
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func NewEndpoint(dnsName, target, recordType string) *Endpoint {
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return NewEndpointWithTTL(dnsName, target, recordType, TTL(0))
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}
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// NewEndpointWithTTL initialization method to be used to create an endpoint with a TTL struct
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func NewEndpointWithTTL(dnsName, target, recordType string, ttl TTL) *Endpoint {
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return &Endpoint{
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DNSName: strings.TrimSuffix(dnsName, "."),
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Target: strings.TrimSuffix(target, "."),
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RecordType: recordType,
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Labels: map[string]string{},
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RecordTTL: ttl,
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}
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}
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// MergeLabels adds keys to labels if not defined for the endpoint
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func (e *Endpoint) MergeLabels(labels map[string]string) {
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for k, v := range labels {
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if e.Labels[k] == "" {
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e.Labels[k] = v
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}
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}
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}
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func (e *Endpoint) String() string {
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return fmt.Sprintf("%s %d IN %s %s", e.DNSName, e.RecordTTL, e.RecordType, e.Target)
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}
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