mirror of
https://github.com/kubernetes-sigs/external-dns.git
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e3d8983ed4
* feat: Add Azure DNS metadata (tags) support * fix: address PR review comments for Azure metadata support * test: add Azure metadata annotation test cases and fix prefix initialization * Replace azure-metadata-* annotations with azure-tags * refactor: move Azure tags parsing to provider package Move provider-specific Azure tags annotation parsing from source/annotations to provider/azure, following the same pattern as Cloudflare tags handling. * fix: use GetProviderSpecificProperty and handle duplicate tags * fix: align with upstream Go 1.26 migration and short-form property names
113 lines
5.1 KiB
Go
113 lines
5.1 KiB
Go
/*
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Copyright 2025 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 annotations
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import (
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"math"
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)
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const (
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// DefaultAnnotationPrefix is the default annotation prefix used by external-dns
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DefaultAnnotationPrefix = "external-dns.alpha.kubernetes.io/"
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ttlMinimum = 1
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ttlMaximum = math.MaxInt32
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)
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var (
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// AnnotationKeyPrefix is set on all annotations consumed by external-dns (outside of user templates)
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// to provide easy filtering. Can be customized via SetAnnotationPrefix.
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AnnotationKeyPrefix = DefaultAnnotationPrefix
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// CloudflareProxiedKey The annotation used for determining if traffic will go through Cloudflare
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CloudflareProxiedKey = AnnotationKeyPrefix + "cloudflare-proxied"
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CloudflareCustomHostnameKey = AnnotationKeyPrefix + "cloudflare-custom-hostname"
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CloudflareRegionKey = AnnotationKeyPrefix + "cloudflare-region-key"
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CloudflareRecordCommentKey = AnnotationKeyPrefix + "cloudflare-record-comment"
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CloudflareTagsKey = AnnotationKeyPrefix + "cloudflare-tags"
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// AzureTagsKey The annotation used for Azure DNS record tags
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AzureTagsKey = AnnotationKeyPrefix + "azure-tags"
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AWSPrefix = AnnotationKeyPrefix + "aws-"
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CoreDNSPrefix = AnnotationKeyPrefix + "coredns-"
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SCWPrefix = AnnotationKeyPrefix + "scw-"
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WebhookPrefix = AnnotationKeyPrefix + "webhook-"
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CloudflarePrefix = AnnotationKeyPrefix + "cloudflare-"
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TtlKey = AnnotationKeyPrefix + "ttl"
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SetIdentifierKey = AnnotationKeyPrefix + "set-identifier"
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AliasKey = AnnotationKeyPrefix + "alias"
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RecordTypeKey = AnnotationKeyPrefix + "record-type"
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TargetKey = AnnotationKeyPrefix + "target"
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// ControllerKey The annotation used for figuring out which controller is responsible
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ControllerKey = AnnotationKeyPrefix + "controller"
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// HostnameKey The annotation used for defining the desired hostname
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HostnameKey = AnnotationKeyPrefix + "hostname"
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// AccessKey The annotation used for specifying whether the public or private interface address is used
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AccessKey = AnnotationKeyPrefix + "access"
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// EndpointsTypeKey The annotation used for specifying the type of endpoints to use for headless services
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EndpointsTypeKey = AnnotationKeyPrefix + "endpoints-type"
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// Ingress the annotation used to determine if the gateway is implemented by an Ingress object
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Ingress = AnnotationKeyPrefix + "ingress"
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// IngressHostnameSourceKey The annotation used to determine the source of hostnames for ingresses. This is an optional field - all
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// available hostname sources are used if not specified.
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IngressHostnameSourceKey = AnnotationKeyPrefix + "ingress-hostname-source"
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// ControllerValue The value of the controller annotation so that we feel responsible
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ControllerValue = "dns-controller"
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// InternalHostnameKey The annotation used for defining the desired hostname
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InternalHostnameKey = AnnotationKeyPrefix + "internal-hostname"
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// The annotation used for defining the desired hostname source for gateways
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GatewayHostnameSourceKey = AnnotationKeyPrefix + "gateway-hostname-source"
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)
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// SetAnnotationPrefix sets a custom annotation prefix and rebuilds all annotation keys.
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// This must be called before any sources are initialized.
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// The prefix must end with '/'.
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func SetAnnotationPrefix(prefix string) {
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AnnotationKeyPrefix = prefix
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// Cloudflare annotations
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CloudflareProxiedKey = AnnotationKeyPrefix + "cloudflare-proxied"
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CloudflareCustomHostnameKey = AnnotationKeyPrefix + "cloudflare-custom-hostname"
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CloudflareRegionKey = AnnotationKeyPrefix + "cloudflare-region-key"
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CloudflareRecordCommentKey = AnnotationKeyPrefix + "cloudflare-record-comment"
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CloudflareTagsKey = AnnotationKeyPrefix + "cloudflare-tags"
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// Azure annotations
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AzureTagsKey = AnnotationKeyPrefix + "azure-tags"
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// Provider prefixes
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AWSPrefix = AnnotationKeyPrefix + "aws-"
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CoreDNSPrefix = AnnotationKeyPrefix + "coredns-"
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SCWPrefix = AnnotationKeyPrefix + "scw-"
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WebhookPrefix = AnnotationKeyPrefix + "webhook-"
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CloudflarePrefix = AnnotationKeyPrefix + "cloudflare-"
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// Core annotations
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TtlKey = AnnotationKeyPrefix + "ttl"
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SetIdentifierKey = AnnotationKeyPrefix + "set-identifier"
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AliasKey = AnnotationKeyPrefix + "alias"
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RecordTypeKey = AnnotationKeyPrefix + "record-type"
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TargetKey = AnnotationKeyPrefix + "target"
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ControllerKey = AnnotationKeyPrefix + "controller"
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HostnameKey = AnnotationKeyPrefix + "hostname"
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AccessKey = AnnotationKeyPrefix + "access"
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EndpointsTypeKey = AnnotationKeyPrefix + "endpoints-type"
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Ingress = AnnotationKeyPrefix + "ingress"
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IngressHostnameSourceKey = AnnotationKeyPrefix + "ingress-hostname-source"
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InternalHostnameKey = AnnotationKeyPrefix + "internal-hostname"
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GatewayHostnameSourceKey = AnnotationKeyPrefix + "gateway-hostname-source"
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}
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