agones Adds instructions for adding and removing field from a CRD

What type of PR is this?

/kind documentation

What this PR does / Why we need it:

Adds instructions necessary for adding and removing a field from a CRD, so that the CRD will be compatible across upgrades.

Which issue(s) this PR fixes:

Closes #3771

Special notes for your reviewer:

Jul 18 '24 18:07 igooch

Build Succeeded :clap:

Build Id: 93d5398a-ca56-4b4a-a846-d3be80c9e763

The following development artifacts have been built, and will exist for the next 30 days:

A preview of the website (the last 30 builds are retained):

https://c303b36-dot-preview-dot-agones-images.appspot.com/

To install this version:

git fetch https://github.com/googleforgames/agones.git pull/3913/head:pr_3913 && git checkout pr_3913
helm install agones ./install/helm/agones --namespace agones-system --set agones.image.registry=us-docker.pkg.dev/agones-images/ci --set agones.image.tag=1.43.0-dev-c303b36-amd64

Jul 18 '24 20:07 agones-bot

Build Succeeded :partying_face:

Build Id: 6af5ca43-53b4-4cac-aaf1-7ba559f5175f

The following development artifacts have been built, and will exist for the next 30 days:

image: us-docker.pkg.dev/agones-images/ci/agones-controller:1.43.0-dev-f5997d9
image: us-docker.pkg.dev/agones-images/ci/agones-extensions:1.43.0-dev-f5997d9
image: us-docker.pkg.dev/agones-images/ci/agones-sdk:1.43.0-dev-f5997d9-linux
image: us-docker.pkg.dev/agones-images/ci/agones-ping:1.43.0-dev-f5997d9
image: us-docker.pkg.dev/agones-images/ci/agones-allocator:1.43.0-dev-f5997d9
Linux C++ SDK (build): agonessdk-1.43.0-dev-f5997d9-linux-arch_64.tar.gz
SDK Server: agonessdk-server-1.43.0-dev-f5997d9.zip

A preview of the website (the last 30 builds are retained):

https://f5997d9-dot-preview-dot-agones-images.appspot.com/

To install this version:

git fetch https://github.com/googleforgames/agones.git pull/3913/head:pr_3913 && git checkout pr_3913
helm install agones ./install/helm/agones --namespace agones-system --set agones.image.registry=us-docker.pkg.dev/agones-images/ci --set agones.image.tag=1.43.0-dev-f5997d9

Jul 29 '24 19:07 agones-bot

Build Succeeded :partying_face:

Build Id: 3df5a1cc-1e41-44b4-baf2-72dae163f00e

The following development artifacts have been built, and will exist for the next 30 days:

image: us-docker.pkg.dev/agones-images/ci/agones-controller:1.43.0-dev-569d082
image: us-docker.pkg.dev/agones-images/ci/agones-extensions:1.43.0-dev-569d082
image: us-docker.pkg.dev/agones-images/ci/agones-sdk:1.43.0-dev-569d082-linux
image: us-docker.pkg.dev/agones-images/ci/agones-ping:1.43.0-dev-569d082
image: us-docker.pkg.dev/agones-images/ci/agones-allocator:1.43.0-dev-569d082
Linux C++ SDK (build): agonessdk-1.43.0-dev-569d082-linux-arch_64.tar.gz
SDK Server: agonessdk-server-1.43.0-dev-569d082.zip

A preview of the website (the last 30 builds are retained):

https://569d082-dot-preview-dot-agones-images.appspot.com/

To install this version:

git fetch https://github.com/googleforgames/agones.git pull/3913/head:pr_3913 && git checkout pr_3913
helm install agones ./install/helm/agones --namespace agones-system --set agones.image.registry=us-docker.pkg.dev/agones-images/ci --set agones.image.tag=1.43.0-dev-569d082

Aug 05 '24 18:08 agones-bot

Build Succeeded :partying_face:

Build Id: e007e125-cc64-495d-a112-12d62df984ef

The following development artifacts have been built, and will exist for the next 30 days:

image: us-docker.pkg.dev/agones-images/ci/agones-controller:1.44.0-dev-9dfbd81
image: us-docker.pkg.dev/agones-images/ci/agones-extensions:1.44.0-dev-9dfbd81
image: us-docker.pkg.dev/agones-images/ci/agones-sdk:1.44.0-dev-9dfbd81-linux
image: us-docker.pkg.dev/agones-images/ci/agones-ping:1.44.0-dev-9dfbd81
image: us-docker.pkg.dev/agones-images/ci/agones-allocator:1.44.0-dev-9dfbd81
Linux C++ SDK (build): agonessdk-1.44.0-dev-9dfbd81-linux-arch_64.tar.gz
SDK Server: agonessdk-server-1.44.0-dev-9dfbd81.zip

A preview of the website (the last 30 builds are retained):

https://9dfbd81-dot-preview-dot-agones-images.appspot.com/

To install this version:

git fetch https://github.com/googleforgames/agones.git pull/3913/head:pr_3913 && git checkout pr_3913
helm install agones ./install/helm/agones --namespace agones-system --set agones.image.registry=us-docker.pkg.dev/agones-images/ci --set agones.image.tag=1.44.0-dev-9dfbd81

Sep 14 '24 00:09 agones-bot

Build Succeeded :partying_face:

Build Id: cedf81b6-a482-468c-be68-42d78e2c4f0c

The following development artifacts have been built, and will exist for the next 30 days:

image: us-docker.pkg.dev/agones-images/ci/agones-controller:1.44.0-dev-d32f13f
image: us-docker.pkg.dev/agones-images/ci/agones-extensions:1.44.0-dev-d32f13f
image: us-docker.pkg.dev/agones-images/ci/agones-sdk:1.44.0-dev-d32f13f-linux
image: us-docker.pkg.dev/agones-images/ci/agones-ping:1.44.0-dev-d32f13f
image: us-docker.pkg.dev/agones-images/ci/agones-allocator:1.44.0-dev-d32f13f
Linux C++ SDK (build): agonessdk-1.44.0-dev-d32f13f-linux-arch_64.tar.gz
SDK Server: agonessdk-server-1.44.0-dev-d32f13f.zip

A preview of the website (the last 30 builds are retained):

https://d32f13f-dot-preview-dot-agones-images.appspot.com/

To install this version:

git fetch https://github.com/googleforgames/agones.git pull/3913/head:pr_3913 && git checkout pr_3913
helm install agones ./install/helm/agones --namespace agones-system --set agones.image.registry=us-docker.pkg.dev/agones-images/ci --set agones.image.tag=1.44.0-dev-d32f13f

Oct 08 '24 16:10 agones-bot