Add default anti affinity #789

Job	Run time
integration (integration test with oauth2, .ci/tests/integration-oauth2/e2e.yaml)	26m 5s
integration (integration test, .ci/tests/integration/e2e.yaml)	26m 20s
integration (integration test with tls, .ci/tests/integration/e2e_with_tls.yaml)	26m 20s
integration (integration test with downloader, .ci/tests/integration-oauth2/e2e_with_downloader.y...	26m 20s
integration (integration test with tls, .ci/tests/integration/e2e_with_tls.yaml)	39m 46s
integration (integration test, .ci/tests/integration/e2e.yaml)	53m 31s
integration (integration test with downloader, .ci/tests/integration-oauth2/e2e_with_downloader.y...	32m 0s
integration (integration test with oauth2, .ci/tests/integration-oauth2/e2e.yaml)	34m 8s
	4h 24m 30s

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