flaky DNSService unit-test

[smira]

#212 34.91 === RUN   TestDNSServer
#212 34.91 === RUN   TestDNSServer/TestResolving
#212 34.91     logger.go:146: 2024-04-08T16:23:05.234Z	DEBUG	controller starting	{"controller": "network.DNSResolveCacheController"}
#212 34.91     logger.go:146: 2024-04-08T16:23:05.234Z	DEBUG	controller starting	{"controller": "network.DNSUpstreamController"}
#212 34.91     logger.go:146: 2024-04-08T16:23:05.234Z	INFO	created dns upstream	{"controller": "network.DNSUpstreamController", "addr": "8.8.8.8"}
#212 34.91     logger.go:146: 2024-04-08T16:23:05.234Z	INFO	created dns upstream	{"controller": "network.DNSUpstreamController", "addr": "1.1.1.1"}
#212 34.91 === NAME  TestDNSServer
#212 34.91     logger.go:146: 2024-04-08T16:23:05.234Z	DEBUG	starting dns server	{"net": "udp", "addr": "127.0.0.53:34013"}
#212 34.91     logger.go:146: 2024-04-08T16:23:05.234Z	WARN	error creating UDPv6 listener	{"net": "udp6", "addr": "[::1]:34013", "error": "listen udp6 [::1]:34013: bind: cannot assign requested address"}
#212 34.91     logger.go:146: 2024-04-08T16:23:05.234Z	DEBUG	starting dns server	{"net": "tcp", "addr": "127.0.0.53:34013"}
#212 34.91     logger.go:146: 2024-04-08T16:23:05.234Z	WARN	error creating TCPv6 listener	{"net": "tcp6", "addr": "[::1]:34013", "error": "listen tcp6 [::1]:34013: bind: cannot assign requested address"}
#212 34.91     logger.go:146: 2024-04-08T16:23:05.234Z	DEBUG	dns request	{"data": ";; opcode: QUERY, status: NOERROR, id: 39128\n;; flags: rd; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0\n\n;; QUESTION SECTION:\n;google.com.\tIN\t A\n"}
#212 34.91     logger.go:146: 2024-04-08T16:23:05.234Z	WARN	error serving dns request	{"error": "no destination available"}
#212 34.91     logger.go:146: 2024-04-08T16:23:05.234Z	INFO	updated dns server nameservers	{"addrs": ["1.1.1.1:53", "8.8.8.8:53"]}
#212 34.91 === NAME  TestDNSServer/TestResolving
#212 34.91     dns_resolve_cache_test.go:89: 
#212 34.91         	Error Trace:	/src/internal/app/machined/pkg/controllers/network/dns_resolve_cache_test.go:89
#212 34.91         	Error:      	Not equal: 
#212 34.91         	            	expected: 0
#212 34.91         	            	actual  : 2
#212 34.91         	Test:       	TestDNSServer/TestResolving
#212 34.91         	Messages:   	;; opcode: QUERY, status: SERVFAIL, id: 39128
#212 34.91         	            	;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0
#212 34.91         	            	
#212 34.91         	            	;; QUESTION SECTION:
#212 34.91         	            	;google.com.	IN	 A
#212 34.91     ctest.go:100: tear down
#212 34.91 === NAME  TestDNSServer
#212 34.91     logger.go:146: 2024-04-08T16:23:05.235Z	WARN	error creating UDPv6 listener	{"net": "udp6", "addr": "[::1]:34013", "error": "listen udp6 [::1]:34013: bind: cannot assign requested address"}
#212 34.91 === NAME  TestDNSServer/TestResolving
#212 34.91     logger.go:146: 2024-04-08T16:23:05.235Z	INFO	destroyed dns upstream	{"controller": "network.DNSUpstreamController", "addr": "1.1.1.1"}
#212 34.91 === NAME  TestDNSServer
#212 34.91     logger.go:146: 2024-04-08T16:23:05.235Z	WARN	error creating TCPv6 listener	{"net": "tcp6", "addr": "[::1]:34013", "error": "listen tcp6 [::1]:34013: bind: cannot assign requested address"}
#212 34.91     logger.go:146: 2024-04-08T16:23:05.235Z	INFO	updated dns server nameservers	{"addrs": []}
#212 34.91 === NAME  TestDNSServer/TestResolving
#212 34.91     logger.go:146: 2024-04-08T16:23:05.235Z	INFO	destroyed dns upstream	{"controller": "network.DNSUpstreamController", "addr": "8.8.8.8"}
#212 34.91     logger.go:146: 2024-04-08T16:23:05.236Z	DEBUG	controller finished	{"controller": "network.DNSUpstreamController"}
#212 34.91 === NAME  TestDNSServer
#212 34.91     logger.go:146: 2024-04-08T16:23:05.236Z	DEBUG	dns server stopped	{"net": "udp", "addr": "127.0.0.53:34013"}
#212 34.91     logger.go:146: 2024-04-08T16:23:05.236Z	DEBUG	dns listener closed	{"net": "udp", "addr": "127.0.0.53:34013"}
#212 34.91     logger.go:146: 2024-04-08T16:23:05.236Z	DEBUG	dns server stopped	{"net": "tcp", "addr": "127.0.0.53:34013"}
#212 34.91     logger.go:146: 2024-04-08T16:23:05.236Z	DEBUG	dns listener closed	{"net": "tcp", "addr": "127.0.0.53:34013"}
#212 34.91 === NAME  TestDNSServer/TestResolving
#212 34.91     logger.go:146: 2024-04-08T16:23:05.236Z	DEBUG	controller finished	{"controller": "network.DNSResolveCacheController"}
#212 34.91 --- FAIL: TestDNSServer (0.00s)
#212 34.91     --- FAIL: TestDNSServer/TestResolving (0.00s)
#212 34.91 FAIL