🐛 Support reused connection for better performance. (#753) #1951

Job	Run time
build	2m 17s
fmt	13s
test-unit	10m 44s
vet	1m 27s
test-api	2m 35s
build-image	2m 11s
test-integration / check-images	2s
test-integration / e2e-api-integration-tests	22m 21s
test-integration / e2e-ui-integration-tests	0s
	41m 50s

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