Upgrade dev tooling kubectl to 1.18

[markmandel]

What type of PR is this?

Uncomment only one /kind <> line, hit enter to put that in a new line, and remove leading whitespace from that line:

/kind breaking

/kind bug
/kind cleanup
/kind documentation
/kind feature
/kind hotfix

What this PR does / Why we need it:

For both the build image and the e2e image.

Which issue(s) this PR fixes:

Work on #1971

Special notes for your reviewer:

N/A

[agones-bot]

Build Failed 😱

Build Id: 05e05acc-8bf4-4bdb-8571-2594f7fdd0ec

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[markmandel]

Some e2e tests failed:

--- FAIL: TestGameServerAllocationMetaDataPatch (167.70s)
    gameserverallocation_test.go:283: 
        	Error Trace:	gameserverallocation_test.go:283
        	Error:      	timed out waiting for the condition
        	Test:       	TestGameServerAllocationMetaDataPatch

--- FAIL: TestSDKSetLabel (181.58s)
    gameserver_test.go:94: 
        	Error Trace:	gameserver_test.go:94
        	Error:      	Received unexpected error:
        	            	timed out waiting for the condition
        	Test:       	TestSDKSetLabel

--- FAIL: TestGameServerShutdown (318.05s)
    gameserver_test.go:658: 
        	Error Trace:	gameserver_test.go:658
        	Error:      	Received unexpected error:
        	            	timed out waiting for the condition
        	Test:       	TestGameServerShutdown

Will rerun and see if it's flaky, or a real issue.

[agones-bot]

Build Failed 😱

Build Id: 64ec6390-f8a1-4b72-ae94-71247d99f54a

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[markmandel]

Failed again. Will need to investigate.

--- FAIL: TestGameServerTcpUdpProtocol (181.19s)
    gameserver_test.go:748: Could not ping TCP GameServer: dial tcp 34.82.222.150:7675: connect: connection timed out

Will try one more time just for giggles.

[agones-bot]

Build Failed 😱

Build Id: ebe3d6c6-0600-45fb-8b44-bbab82b6662d

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[markmandel]

At least this seems consistent:

--- FAIL: TestGameServerTcpUdpProtocol (163.87s)
    gameserver_test.go:748: Could not ping TCP GameServer: dial tcp 35.247.81.255:7537: connect: connection timed out
time="2021-02-10 05:10:24.435" level=info msg="fleet simple-fleet-grlfq has 10/10 ready replicas"

[markmandel]

🤦 I know why it's failing. The tcp firewall rule is gone. Hmnn, that's odd.

[agones-bot]

Build Succeeded 👏

Build Id: 3e2e5bd8-304c-4866-aea0-7067e5d41c8a

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

• image: gcr.io/agones-images/agones-controller:1.13.0-d386c6a
• image: gcr.io/agones-images/agones-sdk:1.13.0-d386c6a
• image: gcr.io/agones-images/agones-ping:1.13.0-d386c6a
• Linux C++ SDK (build): agonessdk-1.13.0-d386c6a-linux-arch_64.tar.gz
• SDK Server: agonessdk-server-1.13.0-d386c6a.zip

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

• https://d386c6a-dot-preview-dot-agones-images.appspot.com/

To install this version:

• git fetch https://github.com/googleforgames/agones.git pull/1989/head:pr_1989 && git checkout pr_1989
• helm install ./install/helm/agones --namespace agones-system --name agones --set agones.image.tag=1.13.0-d386c6a

[google-oss-robot]

[APPROVALNOTIFIER] This PR is APPROVED

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

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• OWNERS [markmandel,roberthbailey]

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