Gloo support breaks for gloo edge >=1.12

[robparrott]

Problem

We are finding that Gloo Edge as of v1.12 has changed the way that the Proxy object is created within kubernetes, which will break external-dns integration. This will require a rework of the CR detection code in external-dns to address it.

The details are that as of gloo edge 1.12, the glow 'Proxy` object is not persisted to the kubernetes configuration system in etcd by default, because it can grow to be too large in size to be stored there. The vendor solo.io added a flag to compress the Proxy CR as of v1.5.0 (https://docs.solo.io/gloo-edge/latest/operations/advanced/crd_comperssion/).

As of gloo edge v1.12 the default seems to have been changed so that the Proxy object is no longer persisted as a kubernetes CustomResource, (see for example https://github.com/solo-io/gloo/issues/7725 ). This breaks the external-dns functionality for a typical installation.

Workaround

Per the Gloo Edge docs, there is a workaround, which is to set the option persistProxySpec: true on the helm chart or similar, or on the Gateway deployment (https://docs.solo.io/gloo-edge/latest/reference/api/github.com/solo-io/gloo/projects/gloo/api/v1/settings.proto.sk/).

For larger implementations the Proxy spec can be compressed as well (option compressedProxySpec) but this may or may not break external-dns.

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[megum1n]

/remove-lifecycle rotten

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/close not-planned

[k8s-ci-robot]

@k8s-triage-robot: Closing this issue, marking it as "Not Planned".

In response to this:

The Kubernetes project currently lacks enough active contributors to adequately respond to all issues and PRs.

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• After 90d of inactivity, lifecycle/stale is applied
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/close not-planned

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