ืืขืื, ืืืืจ.
ืืื ืืขื ืึทืจืืืงื, ืืื ืืืืื ืฆื ืจืขืื ืืืขืื ืืืื ืืขืจืคืึทืจืื ื ืฆื ืฉืึทืคึฟื ืึท ืืขืจื ืขื ืกืืืืืืข ืคึฟืึทืจ ืขืงืกืคึผืขืจืืืขื ืืื ื ืืื ืืืงืจืึธ ืืึทืืื ืื ืืก. ืืืขื ืืื ืืขืจื ืขื ืืขืืขืจ ื ืืึท ืืขืฆืืึทื, ืืื ืฉืืขื ืืืง ืืขืืืืื ืฆื ืคึผืจืืืืจื ืขืก ื ืื ืืืืื ืืืืฃ ืืืื ืืืืข ืืึทืฉืื, ืึธืืขืจ ืืืื ืืื ืืขืจ ืจืขืึทืืืกืืืฉ ืื ืึธืื. ืืขืจืืืขืจ, ืืื ืืึทืฉืืึธืกื ืฆื ืฉืึทืคึฟื ืึท ืกืืืคึผืืึทืคืืื ืืืงืจืึธืกืขืจืืืืก ืึทืคึผืืึทืงืืืฉืึทื, ืืืึธืก ืงืขื ืฉืคึผืขืืขืจ ืืืื "ืืขืืื ืืขื" ืืื ืึทืืข ืกืึธืจืฅ ืคืื ืืฉืืงืึทืืืข ืืขืงื ืึทืืึทืืืฉืื. ืื ืืืืคึผื ืคืึธืืขืจืื ื ืคึฟืึทืจ ืื ืคึผืจืืืขืงื ืืื ืืืึทื ืืึทืงืกืืืื ืคืึทื ืืงืฉืึทื ืึทื ืคึผืจืึทืงืกืืืึทืื ืฆื ืื ืคืึทืงืืืฉ ืกืืกืืขื.
ืืืืืขืก, ืืื ืฆืขืืืืื ืื ืฉืึทืคืื ื ืคืื ืื ืคึผืจืืืขืงื ืืื ืขืืืขืืข ืกืืขืคึผืก:
ืฉืึทืคึฟื ืฆืืืื ืืึทืืื ืื ืืก - 'ืืึทืงืขื ื' ืืื 'ืืึทืืขืืืืึท', ืคึผืึทืงื ืืื ืืื ืืึธืงืงืขืจ ืืืืืขืจ ืืื ืงืึทื ืคืืืืขืจ ืืื ืฆื ืึทืจืืขืื ืฆืืืึทืืขื
ืืขืจืืื ืขื: Java 11, Spring Boot, Docker, ืืืื ืึทืคึผืืึทืืึทืืืืฉืึทื
ืืขืจืืื ืขื: Kubernetes, GKE, ืืืื ืคืึทืจืืืึทืืืื ื, ืึทืืืึธืกืงืึทืืื ื, ืกืืงืจืืฅ
ืฉืึทืคึฟื ืึท ืืฉืึทืจื ืืื ืืขืื 3 ืคึฟืึทืจ ืืขืจ ืขืคืขืงืืืื ืงื ืืื ืคืึทืจืืืึทืืืื ื
ืืขืจืืื ืขื: ืืขืื 3, ืืฉืึทืจื ืืืคึผืืืืืึทื ื
ืืึทืฉืืขืืืงื Jenkins ืืื ืจืขืจื - ืืื ืืข ืฆื ืืืืืึธืืึทืืืฉ ืฆืืฉืืขืื ืงืึธื ืฆื ืืขื ืงื ืืื
ืืขืจืืื ืขื: Jenkins ืงืึทื ืคืืืืขืจืืืฉืึทื, ืคึผืืืืื ืก, ืืึทืืื ืืขืจ ืงืึธื ืคืืืก ืจืืคึผืึทืืึทืืึธืจื
ืืื ืคึผืืึทื ืฆื ืึธืคึผืืขืื ืึท ืืึทืืื ืืขืจ ืึทืจืืืงื ืฆื ืืขืืขืจ ืฉืจืื.
ืืขืจ ืคืึธืงืืก ืคืื ืืขื ืกืขืจืืข ืคืื โโืึทืจืืืงืืขื ืืื ื ืืฉื ืืื ืฆื ืฉืจืืึทืื ืืืงืจืึธืกืขืจืืืืกืขืก, ืึธืืขืจ ืืื ืฆื ืืึทืื ืืื ืึทืจืืขื ืืื ืึท ืืืื ืกืืกืืขื. ืืึธืืฉ ืึทืืข ืื ืืื ืื ืืขื ืขื ืืืืฉืึทืืืึทืื ืึทืจืืืก ืื ืคึฟืึทืจืึทื ืืืืึธืจืืืขืืงืืื ืคืื ืื ืืขืืืขืืึธืคึผืขืจ, ืืื ืืจืึทืืื ืขืก ืืื ื ืึธื ื ืืฆืืง ืฆื ืืืื ืืืึท ืืื ืืกืืขืจ 20% ืืึทืงืึทื ื ืืื ืืื (ืืืึธืก ืืื ืืึทืืืืกื ืฆื ืึทืงืึทืื ืฅ ืคึฟืึทืจ 80% ืคืื ืื ืจืขืืืืืึทื). ืขืืืขืืข ืืขืืึทืืจืข ืืืืืืืง ืืขืืขืก, ืึทืืึท ืืื ืืืืขืจืืืื, ืืืขื ืืืื ืืื ืงืก ืคืื ืืขื ืคึผืจืืืขืงื, ืืืืึทื ืืขืจ ืืืืจ ืคืืจืฉืืืื ืืืกื ืืืขืื ืืขื; ืื ืกืืกืืขื ืืื ืืืฉืืคื ืืืืกืฉืืืกืืขื ืคึฟืึทืจ ืคึผืขืจืืขื ืืขื ื ืืฆื. ืืื ืืึทืืจืืกื ืงืืื ืืืื ืื ืืขื ืืื ืงืึทื ืกืืจืึทืงืืืื ืงืจืืืืง.
ืงืจืืืืืื ื ืืืงืจืึธ ืืึทืืื ืื ืืก
ืื ืกืขืจืืืืกืขืก ืืขื ืขื ืืขืฉืจืืื ืืื Java 11 ืืื Spring Boot. ืื ืืขืจ-ืืื ืกื ืงืึธืืื ืืงืึทืฆืืข ืืื ืึธืจืืึทื ืืืืจื ืืื REST. ืื ืคึผืจืืืขืงื ืืืขื ืึทืจืืึทื ื ืขืืขื ืึท ืืื ืืืื ื ืืืขืจ ืคืื ืืขืกืฅ (ืึทืืื ืึทื ืฉืคึผืขืืขืจ ืขืก ืืืขื ืืืื ืขืคึผืขืก ืฆื ืคึผืจืืืืจื ืืื Jenkins). ืืขืจ ืืงืืจ ืงืึธื ืคึฟืึทืจ ืื ืกืขืจืืืืกืขืก ืืื ืื ืืืฆื ืืืืฃ GitHub: ะธ .
ืฆื ืงืขื ืขื ืงืึธื ืืจืึธืืืจื ืื ืฉืืึทื ืคืื ืืขืืขืจ ืคืื ืื ืกืขืจืืืืกืขืก, ืึท ืกืคึผืจืื ื ืึทืงืืืึทืืึธืจ ืืื ืฆืืืขืืขืื ืฆื ืืืืขืจ ืืขืคึผืขื ืืขื ืกื. ืขืก ืืืขื ืืึทืื ืึทื ืขื ืืคึผืืื ื / ืึทืงืืืึทืืึธืจ / ืืขืืื ื ืืื ืืืขื ืฆืืจืืงืงืืืขื ืึท ืกืืึทืืืก ืคืื 200 ืืืื ืื ืกืขืจืืืืก ืืื ืืจืืื ืฆื ืึธื ื ืขืืขื ืคืึทืจืงืขืจ, ืึธืืขืจ 504 ืืื ืคืึทื ืคืื ืคึผืจืึธืืืขืืก. ืืื ืืขื ืคืึทื, ืืึธืก ืืื ืึท ืืึทื ืฅ ืคืืงืืืฉืึทืก ืืฉืขืง, ืืืืึทื ืื ืกืขืจืืืืกืขืก ืืขื ืขื ืืืืขืจ ืคึผืฉืื, ืืื ืืื ืืขืจ ืึท ืืื ืคืื ืงืจืึทืคื ืืึทืืืฉืืจ ืืื ืืขื ืขื ืืขืจ ืืกืชึผืื ืฆื ืืืขืจื ืืึธืจ ืึทื ืึทืืืืืืึทืืึทื ืืื ืฆื ืืืืึทืื ืืืื ืึทืคึผืขืจืืืฉืึทื ืึทื. ืึธืืขืจ ืืื ืคืึทืงืืืฉ ืกืืกืืขืืขื, ืึทืงืืืึทืืึธืจ ืงืขื ืขื ืืขืืคึฟื ืืืึทืื ืึธืืืจื ืึท ืคึผืจืึธืืืขื ืืืืืขืจ ืืืืขืจื ืึธื ืืืืื ืฆื ืฉืืึธืื ืขืก. ืคึฟืึทืจ ืืืึทืฉืคึผืื, ืืืื ืคึผืจืึธืืืขืืก ืฉืืืืขื ืืื ืึทืงืกืขืก ืฆื ืื ืืึทืืึทืืืืก, ืืืจ ืงืขื ืขื ืืืืืึธืืึทืืืฉ ืจืืกืคึผืึทื ื ืฆื ืืขื ืืืจื ืกืืึธืคึผืคึผืื ื ืคึผืจืึทืกืขืกืื ื ืจืืงืืืขืก ืืื ืึท ืฆืขืืจืืื ืืืึทืฉืคึผืื ืคืื ืื ืกืขืจืืืืก.
ืืึทืงืขื ื ืืื ืกื
ืื ืืึทืงืขื ื ืกืขืจืืืืก ืืืขื ืคืฉืื ืฆืืืื ืืื ืฆืืจืืงืงืืืขื ืื ื ืืืขืจ ืคืื ืื ืืขื ืืืขื ืจืืงืืืขืก.
ืงืึธื ืืจืึธืืืขืจ ืงืึธื:
@RestController
public class RequestsCounterController {
private final AtomicLong counter = new AtomicLong();
@GetMapping("/requests")
public Long getRequestsCount() {
return counter.incrementAndGet();
}
}ืงืึธื ืืจืึธืืืขืจ ืคึผืจืืืืจื:
@WebMvcTest(RequestsCounterController.class)
public class RequestsCounterControllerTests {
@Autowired
private MockMvc mockMvc;
@Test
public void firstRequest_one() throws Exception {
mockMvc.perform(get("/requests"))
.andExpect(status().isOk())
.andExpect(MockMvcResultMatchers.content().string("1"));
}
}ืืืืืืืื ืืื ืกื
ืืขืจ ืืืืืืืื ืืืขื ืคึฟืึธืจืืืขืจืืก ืื ืืงืฉื ืฆื ืื ืืึทืงืขื ื ืืื ืกื, ืกืึทืคึผืืึทืืขื ืืื ื ืขืก ืืื ืื ืคืืืืขื ืืข ืืื ืคึฟืึธืจืืึทืฆืืข:
- ืืืืืืืื ืฉืืึทื. ืขืก ืืื ืืืจืฃ ืึทืืื ืึทื ืืืื ืืืึทืฉืคึผืื ืคืื ืื ืืืืืืืื ืงืขื ืขื ืืืื ืืื ืืขืจืฉืืืื ืคืื ืื ืืขืจื ืืืจื ืื ืกืขืจืืืขืจ ืขื ืืคืขืจ
- ื ืืืืขืจ "ืกืื" ืืืึธืก ืืืขื ืฉืคึผืืื ืื ืจืึธืืข ืคืื โโืึท ืืืืขืจ ืืืืืืืง ืคึผืึทืจืึธื (ืฉืืืกื ื ืืืขืจ ืคึฟืึทืจ ืขื ืงืจืืคึผืฉืึทื ืคืื ืึท ืืืืืืืง ืงืืื)
ืงืึธื ืคืืืืจืึทืืืึธื ืืื application.properties:
backend.url=http://localhost:8081
instance.id=${random.int}
secret="default-secret"ืึทืืึทืคึผืืขืจ ืคึฟืึทืจ ืงืึธืืื ืืงืึทืฆืืข ืืื ืืึทืงืขื ื:
@Service
public class BackendAdapter {
private static final String REQUESTS_ENDPOINT = "/requests";
private final RestTemplate restTemplate;
@Value("${backend.url}")
private String backendUrl;
public BackendAdapter(RestTemplateBuilder builder) {
restTemplate = builder.build();
}
public String getRequests() {
ResponseEntity<String> response = restTemplate.getForEntity(
backendUrl + REQUESTS_ENDPOINT, String.class);
return response.getBody();
}
}ืงืึธื ืืจืึธืืืขืจ:
@RestController
@RequiredArgsConstructor
public class EndpointController {
private final BackendAdapter backendAdapter;
@Value("${instance.id}")
private int instanceId;
@Value("${secret}")
private String secret;
@GetMapping("/")
public String getRequestsCount() {
return String.format("Number of requests %s (gateway %d, secret %s)", backendAdapter.getRequests(), instanceId, secret);
}
}ืืึธื ืืฉ:
ืืึธืืืจ ืึธื ืืืืื ืืขื ืืึทืงืขื ื:
./mvnw package -DskipTests
java -Dserver.port=8081 -jar target/microservices-backend-1.0.0.jarืืึธืืืจ ืึธื ืืืืื ืืขื ืืืืขืจ:
./mvnw package -DskipTests
java -jar target/microservices-gateway-1.0.0.jarืืืจ ืงืึธื ืืจืึธืืืจื:
$ curl http://localhost:8080/
Number of requests 1 (gateway 38560358, secret "default-secret")ืึทืืฅ ืึทืจืืขื. ืืขืจ ืึทืืขื ืืืื ืืืืขื ืขืจ ืืืขื ืืึทืืขืจืงื ืึทื ืืึธืจื ืืฉื ืคึผืจืืืืขื ืฅ ืืื ืื ืคืื ืึทืงืกืขืก ืื ืืึทืงืขื ื ืืืืึทื, ืืืืคึผืึทืกืื ื ืื ืืืืืืืื (). ืฆื ืคืึทืจืจืืืื ืืขื, ืื ืกืขืจืืืืกืขืก ืืืื ืืืื ืงืึทืืืืื ื ืืื ืืืื ื ืขืฅ, ืืื ืืืืื ืื ืืืืืืืื ืืึธื "ืฉืืขืงื ืืืืก" ืึทืจืืืก.
ืืืื, ืืืืืข ืกืขืจืืืืกืขืก ืืืืื ืื ืืขืืืข ืืขืงืข ืกืืกืืขื, ืืืฉืขื ืขืจืืื ืคึฟืขืืขื, ืืื ืืื ืืืื ืคืื ื ืงืขื ืขื ืึธื ืืืืื ืฆื ืึทืจืืึทื ืืืฉื ืืื ืืื ืืขืืขืจ ืื ืืขืจืขืจ. ืขืก ืืืึธืื ืืืื ืคืืึทื ืฆื ืืืึธืืืจื ืืื ืืืขืจ ืืืงืจืึธ ืืึทืืื ืื ืืก. ืืึธืก ืงืขื ืขื ืืืื ืึทืืฉืืืื ืืืจื ืืืกืืจืืืืืืื ื ืึทืคึผืืึทืงืืืฉืึทื ื ืึทืจืืืขืจ ืคืึทืจืฉืืืขื ืข ืืืฉืื ืขื (ืึท ืคึผืืึทืฅ ืคืื ืืขืื, ืฉืืืขืจ), ื ืืฆื ืืืืจืืืึทื ืืืฉืื ืขื (ืจืืกืึธืจืก-ืืื ืืขื ืกืืืืข, ืืึทื ื ืกืืึทืจืืึทืคึผ) ืึธืืขืจ ื ืืฆื ืงืึทื ืืืื ืขืจื. ืืื ืืขืจืืืึทืจื, ืืืจ ืงืืืึทืื ืื ืืจืื ืึธืคึผืฆืืข ืืื ืืื ืึท ืืขืฆืืึทื ืคึฟืึทืจ ืงืึทื ืืึทืืึทื ืืืฉืึทื.
ืืึธืงืงืขืจ
ืืื ืงืืจืฅ, ืืึธืงืขืจ ืงืจืืืืฅ ืืคืืขืืื ืืขืจื ืงืึทื ืืืื ืขืจื, ืืืื ืขืจ ืคึผืขืจ ืึทืคึผืืึทืงืืืฉืึทื. ืฆื ื ืืฆื Docker, ืืืจ ืืึทืจืคึฟื ืฆื ืฉืจืืึทืื ืึท Dockerfile - ืื ืกืืจืึทืงืฉืึทื ื ืคึฟืึทืจ ืืืืขื ืืื ืืืืคื ืื ืึทืคึผืืึทืงืืืฉืึทื. ืืขืจื ืึธื ืืืจ ืงืขื ืขื ืืืืขื ืื ืืืื, ืฆืืคึฟืขืืืงืขืจ ืขืก ืฆื ืื ืืืื ืจืขืืืกืืจื (ื ืืื. ) ืืื ืฆืขืืืืงืืขื ืืืื ืืืงืจืึธืกืขืจืืืืก ืืื ืงืืื ืืึธืงืขืจืืืื ืกืืืืืืข ืืื ืืืื ืืึทืคึฟืขื.
dockerfile
ืืืื ืข ืคืื โโืื ืืืืืืืืกืืข ืืืืื ืฉืืคืื ืคืื ืื ืืืืขืืืฉ ืืื ืืืจ ืืจืืืก. ื ืงืืืคืืงื ืืืืขืืืฉ ืืืขื ืืื ืฉื ืขืืขืจ ืืจืืคืืืื ืคืื ื ืืืืืืขืจื ืจืขืคืืืืืืจื, ื ืขืืขื ืืืืื ืืืขืจ ืคืืืฅ, ืืื ืืืืขืจ ืกืขืจืืืืก ืืืขื ืฉื ืขืืขืจ ืื ืืืืื. ืืขืืข ืืืืขืืืฉ ืืืขืจื ืืขืืืื ืืืืฃ ื ืืืืข ืืืืขืืืฉ, ืืื ืก'ืืื ืจืขืงืืืขื ืืืจื ืฆื ืงืืืืื ืื ืืื ืืืืืืกืืืฉืกืืข ืืคืฆืืข. ื ืืืืข ืืคืฆืืข ืืื ืืืคืืื, ื ืคืืืฉืืขื ืืืืข ืืืกืืจืืืืืฆืืข. Linux ืืื ื ืืื ืืืื ืคืื ืคึผืขืงืืขื.
ืขืจืฉืืขืจ, ืืึธืืืจ ืคึผืจืืืืจื ืฆื ืฉืจืืึทืื ืึท ืืึธืงืขืจืคืืืข "ืงืึธืคึผ-ืืืืฃ" (ืืื ืืืขื ืืึธืื ืืืืื ืึทื ืืึธืก ืืื ืึท ืฉืืขืื ืืืขื, ืืึธื ื ืื ืืึธื ืืึธืก):
FROM adoptopenjdk/openjdk11:jdk-11.0.5_10-alpine
ADD . /src
WORKDIR /src
RUN ./mvnw package -DskipTests
EXPOSE 8080
ENTRYPOINT ["java","-jar","target/microservices-gateway-1.0.0.jar"]ืืึธ ืืืจ ื ืืฆื ืึท ืึทืืคึผืืื ืืืืืจื ืืึทืืข ืืืื ืืื ืื JDK ืฉืืื ืืื ืกืืึทืืืจื ืฆื ืืืืขื ืืื ืืืขืจ ืคึผืจืืืขืงื. ื ืืฆื ืื ADD ืืึทืคึฟืขื, ืืืจ ืืืืื ืืขื ืงืจืึทื ื src ืืืขืืืืืึทืืขืจ ืฆื ืื ืืืื, ืฆืืืื ืขืก ืืื ืืจืืขืื (WORKDIR) ืืื ืึธื ืืืืื ืืขื ืืืืขื. ืื EXPOSE 8080 ืืึทืคึฟืขื ืกืืื ืึทืื ืฆื ืืึธืงืขืจ ืึทื ืื ืึทืคึผืืึทืงืืืฉืึทื ืืื ืืขื ืงืึทื ืืืื ืขืจ ืืืขื ื ืืฆื ืืืื ืคึผืึธืจื 8080 (ืืึธืก ืืืขื ื ืืฉื ืืึทืื ืื ืึทืคึผืืึทืงืืืฉืึทื ืฆืืืจืืืืขื ืคึฟืื ืื ืึทืจืืืก, ืึธืืขืจ ืืืขื ืืึธืื ืึทืงืกืขืก ืฆื ืื ืึทืคึผืืึทืงืืืฉืึทื, ืืืฉื, ืคึฟืื ืื ืื ืืขืจ ืงืึทื ืืืื ืขืจ ืืื ืืขืจ ืืขืืืืงืขืจ ืืึธืงืงืขืจ ื ืขืฅ ).
ืฆื ืคึผืขืงื ืืึทืืื ืื ืืก ืืื ืืืืืขืจ, ืืืจ ืืึทืจืคึฟื ืฆื ืืืืคื ืื ืงืึทืืึทื ืื ืคึฟืื ืืขืจ ืืืึธืจืฆื ืคืื ืืขืืขืจ ืคึผืจืืืขืงื:
docker image build . -t msvc-backend:1.0.0ืืื ืึท ืจืขืืืืืึทื, ืืืจ ืืึทืงืืืขื ืึท ืืืื ืคืื 456 ืืขืืืืืืื ืืื ืืจืืืก (ืคืื ืืืึธืก ืื ืืึทืืข JDK 340 ืืืื ืืขื ืืืขื ืื). ืืื ืึทืืข ืืจืึธืฅ ืืขื ืคืึทืงื ืึทื ืื ืงืืืกื ืืื ืืื ืืืขืจ ืคึผืจืืืขืงื ืงืขื ืขื ืืืื ืืขืจืขืื ื ืืืืฃ ืืืื ืคืื ืืขืจ. ืฆื ืจืขืืืฆืืจื ืื ืืจืืืก ืคืื ืืื ืืืขืจ ืืืื:
- ืืืจ ื ืืฆื ืืึทืืื-ืฉืจืื ืคึฟืึทืจืืึทืืืื ื. ืืื ืืขืจ ืขืจืฉืืขืจ ืฉืจืื ืืืจ ืืืขืื ืึทืกืขืืืึทื ืื ืคึผืจืืืขืงื, ืืื ืื ืจืืข ืืืจ ืื ืกืืึทืืืจื ืื JRE, ืืื ืืื ืื ืืจืื ืฉืจืื, ืืืจ ื ืึธืืืึทืื ืึทืืข ืืขื ืืื ืึท ื ืืึท ืจืืื ืึทืืคึผืืื ืืืื. ืืื ืืึทื ืฅ, ืื ืืขืฆื ืืืื ืืืขื ืึทื ืืืึทืืื ืืืืื ืื ื ืืืืืง ืงืึทืืคึผืึธืื ืึทื ืฅ.
- ืืึธืืืจ ื ืืฆื ืืืฉืึทืืืึท ืืึทืืืฉืึทืืขืจืืืืืฉืึทื. ืกืืึทืจืืื ื ืืื Java 9, ืืืจ ืงืขื ืขื ื ืืฆื ืื jlink ืืขืฆืืึทื ืฆื ืฉืึทืคึฟื ืึท JRE ืคึฟืื ืืืืื ืื ืืึทืืืฉืืื ืืืจ ืืึทืจืคึฟื
ืคึฟืึทืจ ืื ืืฉืืงืึทืืืข, ืืึธ ืืื ืึท ืืื ืึทืจืืืงื ืืืขืื ืึทืคึผืจืึธืืืฉืื ืฆื ืจืืืืกืื ื ืืืื ืกืืืขืก .
Final Dockerfile:
FROM adoptopenjdk/openjdk11:jdk-11.0.5_10-alpine as builder
ADD . /src
WORKDIR /src
RUN ./mvnw package -DskipTests
FROM alpine:3.10.3 as packager
RUN apk --no-cache add openjdk11-jdk openjdk11-jmods
ENV JAVA_MINIMAL="/opt/java-minimal"
RUN /usr/lib/jvm/java-11-openjdk/bin/jlink
--verbose
--add-modules
java.base,java.sql,java.naming,java.desktop,java.management,java.security.jgss,java.instrument
--compress 2 --strip-debug --no-header-files --no-man-pages
--release-info="add:IMPLEMENTOR=radistao:IMPLEMENTOR_VERSION=radistao_JRE"
--output "$JAVA_MINIMAL"
FROM alpine:3.10.3
LABEL maintainer="Anton Shelenkov anshelen@yandex.ru"
ENV JAVA_HOME=/opt/java-minimal
ENV PATH="$PATH:$JAVA_HOME/bin"
COPY --from=packager "$JAVA_HOME" "$JAVA_HOME"
COPY --from=builder /src/target/microservices-backend-*.jar app.jar
EXPOSE 8080
ENTRYPOINT ["java","-jar","/app.jar"]ืืืจ ืจืืงืจืืืืืื ืื ืืืื, ืืื ืขืก ืืืืขื ืืฉืึทืืืึทืื ืืขืืืืจื 6 ืืื ืืื ืขืจ, ืึทืืึทืื ืืื ืฆื 77 ืืขืืืืืืื. ื ืืฉื ืฉืืขืื. ืืขืจื ืึธืืืขื, ืื ืคืึทืจืืืง ืืืืืขืจ ืงืขื ืขื ืืืื ืืคึผืืึธืึทืืขื ืฆื ืื ืืืื ืจืขืืืกืืจื ืึทืืื ืึทื ืืืื ืืืืืขืจ ืืขื ืขื ืืืจืขืืืืื ืคึฟืึทืจ ืืึทืื ืืึธืืืื ื ืคืื ืื ืืื ืืขืจื ืขื.
ืคืืืกื ืืืง ืืึทืืื ืื ืืก ืฆืืืึทืืขื ืืื ืืึธืงืงืขืจ
ืฆื ืึธื ืืืืื ืืื, ืืื ืืืขืจ ืืึทืืื ืื ืืก ืืืื ืืืื ืืืืฃ ืืขืจ ืืขืืืืงืขืจ ื ืขืฅ. ืขืก ืืขื ืขื ืขืืืขืืข ืืืืคึผืก ืคืื ื ืขืืืืึธืจืงืก ืืื ืืึธืงืขืจ, ืืื ืืืจ ื ืืฆื ืื ืืขืจืกื ืคึผืจืืืืืืื ืคืื ืืื - ืืจืืง, ืืืึธืก ืึทืืึทืื ืืืจ ืฆื ื ืขืฅ ืงืึทื ืืืื ืขืจื ืคืืืกื ืืืง ืืืืฃ ืืขืจ ืืขืืืืงืขืจ ืืึทืืขืืึธืก. ืืึธืืืจ ืฉืึทืคึฟื ืึท ื ืขืฅ ืืื ืื ืคืืืืขื ืืข ืืึทืคึฟืขื:
docker network create msvc-networkืืขืจื ืึธื, ืืึธืื ืืื ืื ืงืึทืืขืจ ืึท ืืึทืงืขื ื ืงืึทื ืืืื ืขืจ ืืืื ื ืึธืืขื 'ืืึทืงืขื ื' ืืื ืื ืืืื microservices-backend:1.0.0:
docker run -dit --name backend --network msvc-net microservices-backend:1.0.0ืขืก ืืื ืืืื ืฆื ืืืืขืจืงื ืึทื ืื ืืจืืง ื ืขืฅ ืืื ืืื ืกื ืืคืืขืงืื ื ืืืืก ืคืื ืื ืงืขืกืื ืคึฟืึทืจ ืงืึทื ืืืื ืขืจื ืืืจื ืืืืขืจ ื ืขืืขื. ืืึธืก ืืื, ืื ืืึทืงืขื ื ืืื ืกื ืืืขื ืืืื ืืืจืขืืืืื ืืื ืื ืืึธืงืงืขืจ ื ืขืฅ ืืื .
ืืึธืืืจ ืึธื ืืืืื ืืขื ืืืืขืจ:
docker run -dit -p 80:8080 --env secret=my-real-secret --env BACKEND_URL=http://backend:8080/ --name gateway --network msvc-net microservices-gateway:1.0.0ืืื ืืขื ืืึทืคึฟืขื ืืืจ ืึธื ืืืืึทืื ืึทื ืืืจ ืคืึธืจืืืขืจืืื ืคึผืึธืจื 80 ืคืื ืืื ืืืขืจ ืืึทืืขืืึธืก ืฆื ืคึผืึธืจื 8080 ืคืื ืืขื ืงืึทื ืืืื ืขืจ. ืืืจ ื ืืฆื ืขื ืื ืึธืคึผืฆืืขืก ืฆื ืฉืืขืื ืื ืืืืืจืึทื ืืขื ืึทื ืืืขืจืืึทืืึทืื ืืืึธืก ืืืขื ืืืื ืืืืืึธืืึทืืืฉ ืืืืขื ืขื ืืืจื ืคืจืืืื ื ืืื ืึธืืืืขืจืจืืื ืื ืคึผืจืึธืคึผืขืจืืืขืก ืคืื ืึทืคึผืคึผืืืงืึทืืืึธื.ืคึผืจืึธืคึผืขืจืืืขืก.
ื ืึธื ืงืึทืืขืจ, ืจืืคื ืืื ืืึทืื ืืืืขืจ ืึทื ืึทืืฅ ืึทืจืืขื, ืืื ืืื ืื ืคืจืืขืจืืืงืข ืคืึทื.
ืกืึธืฃ
ืืื ืึท ืจืขืืืืืึทื, ืืืจ ืืืฉืืคื ืฆืืืื ืคึผืฉืื ืืืงืจืึธ ืืึทืืื ืื ืืก, ืคึผืึทืงืืืืฉื ืืื ืืื ืืึธืงืงืขืจ ืงืึทื ืืืื ืขืจื ืืื ืืึธื ืืฉื ืืื ืฆืืืึทืืขื ืืืืฃ ืืขืจ ืืขืืืืงืขืจ ืืึทืฉืื. ืื ืจืืืึทืืืื ื ืกืืกืืขื, ืึธืืขืจ, ืืื ืึท ื ืืืขืจ ืคืื ืืืกืึทืืืืึทื ืืืืืฉืื:
- ื ืขืืขื ืฉืืื ืืึธืืขืจืึทื ืฅ - ืึทืืฅ ืึทืจืืขื ืืืืฃ ืืืื ืกืขืจืืืขืจ ืคึฟืึทืจ ืืื ืื
- ื ืขืืขื ืกืงืึทืืึทืืืืืื - ืืื ืื ืืึทืกืข ืื ืงืจืืกืื, ืขืก ืืืึธืื ืืืื ืคืืึทื ืฆื ืืืืืึธืืึทืืืฉ ืฆืขืืืืงืืขื ื ืึธื ืกืขืจืืืืก ืื ืกืืึทื ืกืื ืืื ืืึทืืึทื ืกืืจื ืื ืืึทืกืข ืฆืืืืฉื ืืื
- ืงืึทืืขืจ ืงืึทืืคึผืืขืงืกืืื - ืืืจ ืืึทืจืคึฟื ืฆื ืึทืจืืึทื ืืื ืืื ืืกืืขืจ 3 ืงืึทืืึทื ืื, ืืื ืืืืขืจ ืคึผืึทืจืึทืืขืืขืจืก (ืืึธืก ืืื ืืืืื ืคึฟืึทืจ 2 ืืึทืืื ืื ืืก)
ืฆื ืกืึธืืืืข ืื ืืืืื ืคึผืจืึธืืืขืืก, ืขืก ืืขื ืขื ืึท ื ืืืขืจ ืคืื ืกืึทืืืฉืึทื ื ืึทืืึท ืืื Docker Swarm, Nomad, Kubernetes ืึธืืขืจ OpenShift. ืืืื ืื ืืื ืฆืข ืกืืกืืขื ืืื ืืขืฉืจืืื ืืื ื'ืืื, ืืืจ ืงืขื ื ืงืืงื ืฆื ืกืคึผืจืื ื ืงืืึธืื ().
ะ ืืื ืืืขื ืืึธืื ืืืจ ืืืขืื ืืื ืืื ืฉืืขืื ืึทืจืืืฃ Kubernetes ืืื ืืืคึผืืืื ืื ืคึผืจืืืขืงื ืฆื Google Kubernetes Engine.
ืืงืืจ: www.habr.com
