ืฉืืื ืืืืื! ืื ื ืื - ืืคืืกื ืืืืจืื ืฉืื ื ืืกืืจืช Quarkus! (ืืื, ืฆืคื ืืกืืื ืจ ืืืงืืื ืฉืื ื
ะ
ืืื ืืจืกื 0.17.0,
ืืื ืื ืืื ืฉืืืจ ืคืจืกืช ืืช AMQ Online ืืคืืืคืืจืืช OpenShift (ืื ืื, ืื ืจืื
ืืื ืืืชืืื, ื ืืฆืืจ ืืคืืืงืฆืืืช Quarkus ืฉืชืืืื ืืขืจืืช ืคืฉืืื ืืขืืืื ืืืื ืืช ืชืื ืฉืืืืฉ ืืืืืขืืช ืชืืืืชืืืช. ืืคืืืงืฆืื ืื ืชืืืื ืืืืื ืืืื ืืช ืฉืฉืืื ืืืื ืืช ืืชืืจ ืืืืขืืช ืืืจืืื ืงืืืข ืืื ืืขืื ืืืื ืืช ืฉืืขืื ืืืืขืืช ืืืชืืจ ืืืคืืง ืืืฉืืจืื ืื ืืชื ืื ืืฆืคืืื ืืืคืืคื.
ืืืืจ ืฉืืฆืจื ื ืืช ืืืคืืืงืฆืื, ื ืจืื ืื ืืืฆื ืืืืืืข ืืช ืชืฆืืจืช ืืขืจืืช ืืืืืขืืช ืืืคืืืงืฆืื ืืืืฉืชืืฉ ื-AMQ Online ืืื ืืกืคืง ืืช ืืืฉืืืื ืืืจืืฉืื ืื ื ืืืขืจืืช.
ืืคืืืงืฆืืืช Quarkus
ืืคืืืงืฆืืืช Quarkus ืฉืื ื ืคืืขืืช ืขื OpenShift ืืืื ืืจืกื ืฉืื ื ืฉื ืืชืืื ืืช
ืืืื ื ืืืืื
ืืืืืื ืคืฉืื ืฉืืื ืืืืคื ืืื ืืืื ื ืืืื ืืืื ืืช ืืืืืช ืืืชืืืช "ืืืืื ืืช" ืื 5 ืฉื ืืืช.
@ApplicationScoped
public class OrderGenerator {
private int orderId = 1;
@Outgoing("orders")
public Flowable<Integer> generate() {
return Flowable.interval(5, TimeUnit.SECONDS)
.map(tick -> orderId++);
}
}
ืืขืื ืืืื ืืช
ืืืคื ืืืืื ืืช ืืื ืืคืืื ืืืชืจ ืคืฉืื, ืืื ืจืง ืืืืืจ ืืืื ืืืฉืืจ ืืืชืืืช ื"ืืืฉืืจืื".
@ApplicationScoped
public class OrderProcessor {
@Incoming("orders")
@Outgoing("confirmations")
public Integer process(Integer order) {
// ะะดะตะฝัะธัะธะบะฐัะพั ะฟะพะดัะฒะตัะถะดะตะฝะธั ัะฐะฒะตะฝ ัะดะฒะพะตะฝะฝะพะผั ะธะดะตะฝัะธัะธะบะฐัะพัั ะทะฐะบะฐะทะฐ <img draggable="false" class="emoji" alt=":-)" src="https://s.w.org/images/core/emoji/11.2.0/svg/1f642.svg">
return order * 2;
}
}
ืืฉืืื ืืืฉืืจ
ืืฉืื ืืืืฉืืจ ืืื ื ืงืืืช ืงืฆื HTTP ืืจืืฉืื ืืืืฉืืจืื ืฉื ืืฆืจื ืขื ืืื ืืืคืืืงืฆืื ืฉืื ื.
@Path("/confirmations")
public class ConfirmationResource {
@Inject
@Stream("confirmations") Publisher<Integer> orders;
@GET
@Produces(MediaType.TEXT_PLAIN)
public String hello() {
return "hello";
}
@GET
@Path("/stream")
@Produces(MediaType.SERVER_SENT_EVENTS)
public Publisher<Integer> stream() {
return orders;
}
}
ืืชืืื
ืืื ืืืชืืืจ ื-AMQ Online, ืืืคืืืงืฆืื ืฉืื ื ืชืฆืืจื ืืื ื ืชืื ื ืชืฆืืจื, ืืืืืจ: ืชืฆืืจืช ืืืืจ Quarkus, ืืืืข ืขื ื ืงืืืช ืืงืฆื ืฉื AMQP ืืืืฉืืจื ืืงืื. ืขืืืฃ, ืืืืื, ืืฉืืืจ ืืช ืื ื ืชืื ื ืืชืฆืืจื ืืืงืื ืืื, ืืื ื ืคืจืื ืืืชื ืืืืื ื ืืื ืืืฆืื ืืช ืืืคืฉืจืืืืช ืืืคืฉืจืืืช ืืืืืจืช ืืคืืืงืฆืืืช Quarkus.
ืืืืจืื
ื ืืชื ืืกืคืง ืชืฆืืจืช ืืืืจ ืืืื ืืืืืจ ืืืืฆืขืืช ืงืืืฅ ืืืคืืื ื ืืืฉืื:
mp.messaging.outgoing.orders.connector=smallrye-amqp
mp.messaging.incoming.orders.connector=smallrye-amqp
ืืื ืฉืืืืจืื ืืืื ืคืฉืืืื, ื ืฉืชืืฉ ืจืง ืืชืืจ ืืืืขืืช ืขืืืจ ืืชืืืช ื"ืืืื ืืช". ืืืชืืืช ื"ืืืฉืืจืื" ืืืคืืืงืฆืื ืฉืื ื ืชืฉืชืืฉ ืืชืืจ ืืืืืจืื.
ื ืงืืืช ืงืฆื AMQP
ืืืื ืืงืืืคืืืฆืื, ืฉื ืืืืจื ืืืกืคืจ ืืืฆืืื ืขืืืจ ื ืงืืืช ืืงืฆื AMQP ืืื ื ืืืืขืื, ืืืื ืืฉ ืืืืจืืง ืืืชื. ื ืืชื ืืืืืืจ ืืช ื ืงืืืช ืืงืฆื ื-configmap ืฉื ืืฆืจื ืขื ืืื AMQ Online, ืื ื ืืืืจ ืืืชื ืืืืฆืขืืช ืืฉืชื ื ืกืืืื ืืื ืืคืกื ืืืคืืืงืฆืื:
spec:
template:
spec:
containers:
- env:
- name: AMQP_HOST
valueFrom:
configMapKeyRef:
name: quarkus-config
key: service.host
- name: AMQP_PORT
valueFrom:
configMapKeyRef:
name: quarkus-config
key: service.port.amqp
ืืืฉืืจืื
ื ืืชื ืืืฉืชืืฉ ืืืกืืืื ืืฉืืื ืืฉืืจืืช ืืื ืืืืช ืืช ืืืคืืืงืฆืื ืฉืื ื ื-OpenShift. ืืื ืืขืฉืืช ืืืช, ืชืืืื ืขืืื ืืืฆืืจ ConfigSource ืืืชืื ืืืฉืืช ืฉืืงืจื ืืช ืืกืืืื ืืืืืืช ืืืขืจืืช ืืงืืฆืื ืฉื ืืคืื:
public class MessagingCredentialsConfigSource implements ConfigSource {
private static final Set<String> propertyNames;
static {
propertyNames = new HashSet<>();
propertyNames.add("amqp-username");
propertyNames.add("amqp-password");
}
@Override
public Set<String> getPropertyNames() {
return propertyNames;
}
@Override
public Map<String, String> getProperties() {
try {
Map<String, String> properties = new HashMap<>();
properties.put("amqp-username", "@@serviceaccount@@");
properties.put("amqp-password", readTokenFromFile());
return properties;
} catch (IOException e) {
throw new UncheckedIOException(e);
}
}
@Override
public String getValue(String key) {
if ("amqp-username".equals(key)) {
return "@@serviceaccount@@";
}
if ("amqp-password".equals(key)) {
try {
return readTokenFromFile();
} catch (IOException e) {
throw new UncheckedIOException(e);
}
}
return null;
}
@Override
public String getName() {
return "messaging-credentials-config";
}
private static String readTokenFromFile() throws IOException {
return new String(Files.readAllBytes(Paths.get("/var/run/secrets/kubernetes.io/serviceaccount/token")), StandardCharsets.UTF_8);
}
}
ืื ื ืืคืจืืกื ืฉื ืืืคืืืงืฆืื
ืืืืืื ืฉืืืคืืืงืฆืื ืืืืืช ืืืืืช ืืืจืืืช ืืงืืืฅ ืืคืขืื, ื ืืจืฉืช ืืืื ื ืืืจืืืืืืช GraalVM. ืืคืจืืื ืืืฆื ืืืืืืจ ืกืืืื ืขืืืจ ืื, ืขืืื ืืืืจืืืช ืืืชืืืืืช ื
ืืืืจ ืืื, ืืขืงืืืช ืืืืจืืืช ืฉื ืืชื ื ืฉื, ืขืืื ืืืืจืื ืืช ืืืงืืจ, ืืื ืืช ืืืคืจืืก ืืช ืืืคืืืงืฆืื ืฉืื ื:
git clone https://github.com/EnMasseProject/enmasse-example-clients
cd enmasse-example-clients/quarkus-example-client
oc new-project myapp
mvn -Pnative -Dfabric8.mode=openshift -Dfabric8.build.strategy=docker package fabric8:build fabric8:resource fabric8:apply
ืืืืจ ืคืงืืืืช ืืื, ืืืืฉืื ืืืคืจืก, ืื ืื ืืชืืื ืขื ืฉื ืงืืข ืืช ืืฉืืื ืืืืืขืืช ืฉืื ื ืฆืจืืืื ื-AMQ Online.
ืืืืจืช ืืขืจืืช ืืืืืขืืช
ืืขืช ืื ืฉื ืืชืจ ืืื ืืืืืืจ ืืช ืืืฉืืืื ืฉืืืคืืืงืฆืื ืฉืื ื ืฆืจืืื ืืืขืจืืช ืืืืืขืืช. ืืฉื ืื, ืขืืื ืืืฆืืจ: 1) ืืจืื ืืชืืืืช ืืื ืืืชืื ืืช ื ืงืืืช ืืงืฆื ืฉื ืืขืจืืช ืืืืืขืืช; 2) ืืชืืืช ืืื ืืืืืืจ ืืช ืืืชืืืืช ืฉืืื ืื ื ืืฉืชืืฉืื ืืืคืืืงืฆืื; 3) ืืขืืจืช ืืืืขืืช ืืืฉืชืืฉ ืืืืืืจ ืืืฉืืจื ืืงืื.
ืฉืื ืืชืืืืช
ืืืืืืงื AddressSpace ื-AMQ Online ืืื ืงืืืฆื ืฉื ืืชืืืืช ืืืืืงืืช ื ืงืืืืช ืงืฆื ืฉื ืืืืืจ ืืืืื ืืืช ืืืืืช ืืืจืฉืื. ืืืฉืจ ืืชื ืืืฆืจ ืืจืื ืืชืืืืช, ืืชื ืืืื ืืฆืืื ืืืฆื ื ืงืืืืช ืงืฆื ืืืขืืจืช ืืืืขืืช ืืืฉืคื:
apiVersion: enmasse.io/v1beta1
kind: AddressSpace
metadata:
name: quarkus-example
spec:
type: brokered
plan: brokered-single-broker
endpoints:
- name: messaging
service: messaging
exports:
- name: quarkus-config
kind: configmap
ืืชืืืช
ืืชืืืืช ืืฉืืฉืืช ืืฉืืืืช ืืงืืืช ืืืืขืืช. ืืื ืืชืืืช ืืฉ ืกืื, ืฉืงืืืข ืืช ืืกืื ืืืงื ืฉืื, ืืื ืื ืชืืื ืืช, ืืืฆืืื ืช ืืช ืืกืคืจ ืืืฉืืืื ืฉืืฉ ืืฉืืืจ. ื ืืชื ืืงืืืข ืืช ืืืชืืืช, ืืืฉื, ืื:
apiVersion: enmasse.io/v1beta1
kind: Address
metadata:
name: quarkus-example.orders
spec:
address: orders
type: queue
plan: brokered-queue
ืืฉืชืืฉ ืืืืืขืืช
ืืื ืืืืืื ืฉืจืง ืืคืืืงืฆืืืช ืืืืื ืืช ืืืืื ืืฉืืื ืืืงืื ืืืืขืืช ืืืชืืืืช ืฉืื, ืขืืื ืืืฆืืจ ืืฉืชืืฉ ืืืขืจืืช ืืืืืขืืช. ืขืืืจ ืืืฉืืืื ืืคืืขืืื ืขื ืืฉืืื, ืืงืืืืช ืืืืืื ืืขืืืจ ืืืืืช ืืืืฆืขืืช ืืฉืืื ืฉืืจืืช OpenShift. ื ืืชื ืืืืืืจ ืืช "ืืฉืืื ืืฉืืจืืช" ืฉื ืืืฉืชืืฉ, ืืืฉื, ืื:
apiVersion: user.enmasse.io/v1beta1
kind: MessagingUser
metadata:
name: quarkus-example.app
spec:
username: system:serviceaccount:myapp:default
authentication:
type: serviceaccount
authorization:
- operations: ["send", "recv"]
addresses: ["orders"]
ืืจืฉืืืช ืืืืืืจ ืืช ืืืคืืืงืฆืื
ืขื ืื ืช ืฉ-AMQ Online ืชืืฆืืจ ืืช ืืคืช ืืชืฆืืจื ืฉืื ืืฉืชืืฉื ื ืืืืืขืช ืืืืข ื ืงืืืช ืืงืฆื ืฉื AMQP, ืืฉ ืืืืืืจ ืืช ืืชืคืงืื ืืืช ืืชืคืงืืืื:
---
apiVersion: rbac.authorization.k8s.io/v1
kind: Role
metadata:
name: quarkus-config
spec:
rules:
- apiGroups: [ "" ]
resources: [ "configmaps" ]
verbs: [ "create" ]
- apiGroups: [ "" ]
resources: [ "configmaps" ]
resourceNames: [ "quarkus-config" ]
verbs: [ "get", "update", "patch" ]
---
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
name: quarkus-config
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: Role
name: quarkus-config
subjects:
- kind: ServiceAccount
name: address-space-controller
namespace: amq-online-infra
ืืืฆื ืืืืื ืชืฆืืจืืช
ืืชื ืืืื ืืืืื ืืช ืชืฆืืจืช ืืขืจืืช ืืืืืขืืช ืื:
cd enmasse-example-clients/quarkus-example-client
oc project myapp
oc apply -f src/main/resources/k8s/addressspace
oc apply -f src/main/resources/k8s/address
ืืืืืช ืืคืืืงืฆืื
ืืื ืืืืื ืฉืืืคืืืงืฆืื ืืชืืืื, ืงืืื ืื, ืืืื ื ืืืืง ืื ืืืชืืืืช ืืืชืืืืืช ื ืืฆืจื ืืื ืคืขืืืืช:
until [[ `oc get address quarkus-example.prices -o jsonpath='{.status.phase}'` == "Active" ]]; do echo "Not yet ready"; sleep 5; done
ืื ืืื ื ืืืืง ืืช ืืชืืืช ืืืชืจ ืฉื ืืกืืื ืืืคืืืงืฆืื (ืคืฉืื ืคืชื ืืช ืืืชืืืช ืืื ืืืคืืคื):
echo "http://$(oc get route quarkus-example-client -o jsonpath='{.spec.host}')/prices.html"
ืืืคืืคื ืฆืจืื ืืืจืืืช ืฉืืืจืืืกืื ืืชืขืืื ืื ืืขืช ืืขืช ืืืฉืจ ืืืืขืืช ื ืฉืืืืช ืืืชืงืืืืช ืขื ืืื AMQ Online.
ืกืืื
ืื ืืชืื ื ืืคืืืงืฆืืืช Quarkus ืฉืืฉืชืืฉืช ื-AMQP ืืืขืืจืช ืืืืขืืช, ืืืืจื ื ืืช ืืืคืืืงืฆืื ืืจืืฅ ืขื ืคืืืคืืจืืช Red Hat OpenShift, ืืืืฉืื ื ืืช ืืชืฆืืจื ืฉืื ืขื ืกืื ืชืฆืืจืช AMQ Online. ืืืืจ ืืื ืืฆืจื ื ืืช ืืื ืืคืกืืื ืืืจืืฉืื ืืืชืืื ืืขืจืืช ืืืืืขืืช ืขืืืจ ืืืคืืืงืฆืื ืฉืื ื.
ืืื ืืกืชืืืืช ืืกืืจื ืขื ืงืืืืจืงืืก, ืืื ืืฉ ืืจืื ืืืจืื ืืืฉืื ืืืขื ืืื ืื ืืคื ืื ื, ืืืฉืืจื ืืขืืืื ืื!
ืืงืืจ: www.habr.com