Add default anti affinity #792

Job	Run time
integration (integration test with oauth2, .ci/tests/integration-oauth2/e2e.yaml)	38m 1s
integration (integration test with downloader, .ci/tests/integration-oauth2/e2e_with_downloader.y...	31m 8s
integration (integration test, .ci/tests/integration/e2e.yaml)	46m 36s
integration (integration test with tls, .ci/tests/integration/e2e_with_tls.yaml)	37m 25s
	2h 33m 10s

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