Explain how namespaces work with allocations

[eminguyen]

What type of PR is this?

/kind documentation

What this PR does / Why we need it:

Adds a brief explanation on how namespaces work with allocations.

Which issue(s) this PR fixes:

Closes #2090

Special notes for your reviewer:

N/A

[agones-bot]

Build Failed 😱

Build Id: 0a497988-3274-4158-b440-0105a9238a85

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[roberthbailey]

Build failed due to infra issues. Running the e2e tests never finished as the cluster was unavailable:

Already have image: e2e-runner

Fetching cluster endpoint and auth data.
WARNING: cluster e2e-test-cluster is not RUNNING. The kubernetes API may or may not be available. Check the cluster status for more information.
kubeconfig entry generated for e2e-test-cluster.
Waiting consul port-forward to launch on 8500...

[agones-bot]

Build Failed 😱

Build Id: 178fe3a2-2791-4aeb-a826-5c16113abdd7

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[agones-bot]

Build Failed 😱

Build Id: d3c0919a-d450-4847-81b7-7cb336635ac5

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[agones-bot]

Build Succeeded 👏

Build Id: afbbf17e-9288-4e14-a5ad-9079f3e44871

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

• image: gcr.io/agones-images/agones-controller:1.18.0-e0b87c2
• image: gcr.io/agones-images/agones-ping:1.18.0-e0b87c2
• Linux C++ SDK (build): agonessdk-1.18.0-e0b87c2-linux-arch_64.tar.gz
• SDK Server: agonessdk-server-1.18.0-e0b87c2.zip

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

• https://e0b87c2-dot-preview-dot-agones-images.appspot.com/

To install this version:

• git fetch https://github.com/googleforgames/agones.git pull/2257/head:pr_2257 && git checkout pr_2257
• helm install ./install/helm/agones --namespace agones-system --name agones --set agones.image.tag=1.18.0-e0b87c2

[roberthbailey]

Thanks for the added documentation, I've left a few comments to try and make it a bit more clear/precise.

[agones-bot]

Build Failed 😱

Build Id: 7944ebd4-2e18-4f3a-bd53-5117c3f973b3

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[agones-bot]

Build Failed 😱

Build Id: 031a11bd-424e-436e-9053-d85a3bb72165

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[roberthbailey]

--- FAIL: TestAutoscalerBasicFunctions (346.60s)
    fleetautoscaler_test.go:88: error waiting for fleet condition on fleet simple-fleet-m997v

[roberthbailey]

I feel like we've been seeing more flaky tests recently....

[agones-bot]

Build Succeeded 👏

Build Id: 29f9b0c6-ccf0-48f0-a101-45eedfea5bdf

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

• image: gcr.io/agones-images/agones-controller:1.18.0-2d610c4
• image: gcr.io/agones-images/agones-ping:1.18.0-2d610c4
• Linux C++ SDK (build): agonessdk-1.18.0-2d610c4-linux-arch_64.tar.gz
• SDK Server: agonessdk-server-1.18.0-2d610c4.zip

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

• https://2d610c4-dot-preview-dot-agones-images.appspot.com/

To install this version:

• git fetch https://github.com/googleforgames/agones.git pull/2257/head:pr_2257 && git checkout pr_2257
• helm install ./install/helm/agones --namespace agones-system --name agones --set agones.image.tag=1.18.0-2d610c4

[google-oss-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: eminguyen, roberthbailey

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