Add the ability to configure k8s event rate limit

Co-authored-by: Raffaele Di Fazio <raffo@github.com>

Downgrade Azure provider "Failed to extract" log message to debug

When running the Azure provider at default log level, this messages
is 1/min and is the only messge in the log. Debug seems more
reasonable and matches what Azure Private provider.

feat: add gloo proxy source

Add Initial BlueCat Provider Support

rfc2136: Add cli flag for Kerberos realm and improve tutorial

updated ingress apiVersion

The new BlueCat provider uses the BlueCat API Gateway(REST API). Not
the legacy XML based BlueCat API.

https://github.com/bluecatlabs/gateway-workflows

Currently, the minimum delay between 2 kubernetes events handling is
hard-coded to 5s.

This may cause higher synchronization rates and higher DNS provider API
calls when handling an important number of kubernetes events at once.

Give the opportunity to configure this delay so service owners can
define the acceptable thresholds on their side

Approve crd v1

remove outdated provider list from FAQ, link to list in README

All CRDs under k8s.io and kubernetes.io API groups should go through API
approval.
Signed-off-by: Dinar Valeev <dinar.valeev@absa.africa>

Switch to controller-gen for CRD generation and update CRD to apiextentions v1

external-dns configuration update

Bump alpine base image to 3.13

updated to latest Istio 1.7 libs

v1 is available since kubernetes 1.16, since then v1beta1 is deprecated
and will be dropped in kubernetes 1.22
Signed-off-by: Dinar Valeev <dinar.valeev@absa.africa>

Signed-off-by: Dinar Valeev <dinar.valeev@absa.africa>

Delete CHANGELOG.md

Bump Scaleway DNS API to v2beta1

update external-dns image versiona nd ingress api version

remove duplicate endpoints when processing VirtualService

Make Powerdns support rrsets with multiple records more smartly

If you had an RRSet that contained multiple records, the provider would
end up generating multiple endpoints where really it needs to produce a
single endpoint with multiple targets.

Signed-off-by: Patrik Cyvoct <patrik@ptrk.io>

Signed-off-by: Patrik Cyvoct <patrik@ptrk.io>

Add support for aws eu-south-1 region