build(deps): bump sigs.k8s.io/external-dns from 0.20.0 to 0.21.0

[dependabot]

Bumps sigs.k8s.io/external-dns from 0.20.0 to 0.21.0.

Release notes

Sourced from sigs.k8s.io/external-dns's releases.

v0.21.0

⚠️ Breaking Changes

• chore(digitalocean)!: remove in-tree provider by @​simonoff in #6283
• chore(source)!: remove cloudfoundry support by @​ivankatliarchuk in #6074
• feat!: generalize PTR record support from rfc2136 to all providers by @​clwluvw in #6232
• feat(pihole)!: deprecate v5 API support by @​ivankatliarchuk in #6123
• feat(service)!: ignore unschedulable nodes by @​ivankatliarchuk in #6002
• feat(source/gateway-api)!: migrate Gateway and HTTPRoute to v1 by @​System-Arch in #6291
• feat(source/istio)!: migrate gateway and virtualservice sources to networking.istio.io/v1 by @​ivankatliarchuk in #6302

🚀 Features

• feat(aws): enable support for NAPTR records by @​alexbakker-quandago in #6022
• feat(azure): dns metadata (tags) support by @​vaspoz in #5984
• feat(client): add --kube-api-qps and --kube-api-burst flags for Kubernetes client rate limiting by @​ivankatliarchuk in #6322
• feat(cli): remove cobra cli support by @​ivankatliarchuk in #6034
• feat(cloudflare): support batch API for DNS record changes by @​mooseracerPT in #6208
• feat(coredns): rename ownerId and ownedBy to owner by @​farodin91 in #6032
• feat(coredns): use txt-owner-id to strictly separated external-dns instances by @​farodin91 in #5921
• feat(crd): Support MX record with trailing dot by @​HartmannVolker in #6163
• feat(endpoint): introduce record-type annotation and PTR endpoint helpers by @​clwluvw in #6282
• feat(endpoint): reject alias property on unsupported record types by @​u-kai in #6188
• feat(endpoint): validate PTR records in CheckEndpoint by @​clwluvw in #6275
• feat: end to end testing with coredns provider by @​Raffo in #5933
• feat(event): emit events for ingress,svc,pod,node,crd by @​ivankatliarchuk in #6099
• feat(event): standardize event messages and add resource kind lookup for events by @​ivankatliarchuk in #6101
• feat(fqdn): Deduplicate and sort ExecTemplate output. Add functions by @​ivankatliarchuk in #6173
• feat(gateway): add gateway-api listenerset support by @​jukie in #6254
• feat(informers): reduce informer cache memory footprint via object transformers by @​ivankatliarchuk in #6240
• feat(metrics): added skipped_records_owner_mismatch_per_sync to track ownership conflicts by @​ivankatliarchuk in #6121
• feat(pdns): add --[no-]prefer-alias flag and alias annotation support by @​ngnix in #6129
• feat(pdns): support GetDomainFilter interface by @​clwluvw in #6234
• feat(pihole)!: deprecate v5 API support by @​ivankatliarchuk in #6123
• feat(registry/txt): enable support for SRV and NAPTR by @​alexbakker-quandago in #6023
• feat(service)!: ignore unschedulable nodes by @​ivankatliarchuk in #6002
• feat(source): add support for ingress backed GlooEdge Gateway by @​cucxabong in #5909
• feat(source): add unstructured source by @​ivankatliarchuk in #6172
• feat(source): gateway api hostname source annotation by @​bogdankrasko in #5959
• feat(source/gateway-api)!: migrate Gateway and HTTPRoute to v1 by @​System-Arch in #6291
• feat(source/istio)!: migrate gateway and virtualservice sources to networking.istio.io/v1 by @​ivankatliarchuk in #6302
• feat(txt): add PTR record support to TXT registry mapper and PowerDNS trailing-dot handling by @​clwluvw in #6281
• feat(webhook): instrument HTTP client with request duration metrics by @​ivankatliarchuk in #6307

🐛 Bug fixes

• fix(annotations): initialize annotation keys at declaration time by @​ivankatliarchuk in #6159
• fix(api): rollback changes for omitempty by @​ivankatliarchuk in #6086
• fix(aws): use API validation for routing policies by @​u-kai in #6082
• fix(chart): ptsc indentation by @​andylim0221 in #6054

... (truncated)

Changelog

Sourced from sigs.k8s.io/external-dns's changelog.

Release

Release cycle

Currently we don't release regularly. Whenever we think it makes sense to release a new version we do it. You might want to ask in our Slack channel external-dns when the next release will come out.

Staging Release cycle

A new staging image is released weekly and can be found at gcr.io/k8s-staging-external-dns/external-dns.

There is a time lag between merging changes into the master branch and the subsequent creation of the staging image.

Example command to fetch 10 most recent staging images:

export EXT_DNS_VERSION="v0.21.0"
curl -sLk https://gcr.io/v2/k8s-staging-external-dns/external-dns/tags/list | jq | grep "$EXT_DNS_VERSION" | tail -n 10

Versioning convention

These are the conventions that we will be using for releases following 0.7.6:

• Patch version should be updated if we need to merge bugfixes, e.g. provider a does need a fix in order make updates working again. I would see updating or improving documentation here.

• Minor version should be updated if new features are implemented in existing providers or new provider get introduced.

• Major version should be upgraded if we introduce breaking changes.

Semantic Versioning Discipline

External-DNS follows semantic versioning principles:

• 0.x → pre-stable, APIs subject to change.
• 1.x → not yet considered.

Versioning & Releases External-DNS opts to stay within 0.x versioning scheme. We strive for stability, but reserve the right to introduce breaking changes in minor version bumps when necessary.

How to release a new image

Prerequisite

We use https://github.com/cli/cli to automate the release process. Please install it according to the official documentation.

You must be an official maintainer of the project to be able to do a release.

Steps

... (truncated)

Commits

• 066a11e feat(source/gateway-api)!: migrate Gateway and HTTPRoute to v1 (#6291)
• 8f024f0 ci: fix revision label (#6332)
• a3a692a ci: read golangci-lint version from scripts/install-tools.sh in lint workflow...
• 3a30b7e chore(deps): bump the dev-dependencies group with 9 updates (#6343)
• 4abf696 chore: cloudbild instance type bump (#6340)
• e1ef0be Revert "chore(deps): bump github.com/cloudflare/cloudflare-go from v5 to v6 (...
• e33ab8d feat(gateway): add gateway-api listenerset support (#6254)
• e3d8983 feat(azure): dns metadata (tags) support (#5984)
• 5211020 chore(deps): bump the mkdocs-deps group in /docs/scripts with 3 updates (#6331)
• e8479db chore(deps): bump the dev-dependencies group with 5 updates (#6330)
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