I have Spring cloud project which has below information:
Controller of address-service-1:
#RestController
#RequestMapping("/api/address")
#Slf4j
#RefreshScope
public class AddressController {
#Value("${scope-refresh-testing}")
private String message;
#RequestMapping("/scope-refresh-testing-message")
String getMessage() {
return this.message;
}
}
bootstrap.yml of address-service-1:
spring:
application:
name: address-service-1
# register to config server
cloud:
config:
discovery:
enabled: true
service-id: config-server-1
profile: default
management:
endpoints:
web:
exposure:
include:
- refresh
Properties of config-server-1:
server:
port: 8888
spring:
application:
name: config-server-1
cloud:
config:
server:
git:
default-label: master
uri: file:///E:/workspace/Spring-boot-microservices-config-server-study/
Properties which I stored in file:///E:/workspace/Spring-boot-microservices-config-server-study/ (address-service-1.yml):
scope-refresh-testing: testDefault
If I change scope-refresh-testing: testDefault222 then run url actuator/refresh, the properties file will rollback to scope-refresh-testing: testDefault
Did I miss something in configuration?
Thanks
Related
I am trying to get my microservices configuration from a config server connected to 2 sources : git and vault (for secrets). I have the config bellow:
in the config-server:
server:
port: 8888
spring:
profiles:
active: git, vault
cloud:
config:
server:
vault:
port: 8200
host: 127.0.0.1
kvVersion: 2
git:
order: 2
uri: git#gitlab.git
and in the client side in the bootstrap.yml:
spring:
application:
name: my-service-name
cloud:
config:
uri: http://localhost:8888
token: //token
label: dev
But in my vault i have the path like this :
secret/cad
|--my-service-name
When i make my secret directly in /secret/my-service-name i can access my secrets, but how can i configure acces to secrets in : /secret/cad/my-service-name
Thank you.
You can create your Custom configuration Class that implements VaultConfigurer where you can override to your custom path
#Configuration
Public class CustomVaultConfiguraton implements VaultConfigurer {
#override
public void addSecretsBackends(SecretBackendConfigurer configures){
configures.add("customPath");
}
}
add above configuration class in spring.factories
org.springframework.cloud.bootstrap.BootstrapConfiguration=\packagename.CustomVaultConfiguration
Virtualhost are not getting created on RabbitMQ server based on configuration
Do i have make sure VH aka Virtual Hosts on RabbitMQ .
Am i missing some configuration.
Please find the configuration below
application.yml
spring:
rabbitmq:
host: 127.0.0.1
virtual-host: /defaultVH
username: defaultUser
password: defaultPassword
cloud:
stream:
bindings:
saviyntSampleQueueA:
binder: rabbit-A
contentType: application/x-java-object
group: groupA
destination: saviyntSampleQueueA
saviyntSampleQueueB:
binder: rabbit-B
contentType: application/x-java-object
group: groupB
destination: saviyntSampleQueueB
binders:
rabbit-A:
defaultCandidate: false
inheritEnvironment: false
type: rabbit
environment:
spring:
rabbitmq:
host: 127.0.0.1
virtualHost: /vhA
username: userA
password: paswdA
port: 5672
connection-timeout: 10000
rabbit-B:
defaultCandidate: false
inheritEnvironment: false
type: rabbit
environment:
spring:
rabbitmq:
host: 127.0.0.1
virtualHost: /vhB
username: userB
password: paswdB
port: 5672
connection-timeout: 10000
bootstrap.yml
############################################
# default settings
############################################
spring:
main:
banner-mode: "off"
application:
name: demo-service
cloud:
config:
enabled: true #change this to use config-service
retry:
maxAttempts: 3
discovery:
enabled: false
fail-fast: true
override-system-properties: false
server:
port: 8080
Added default spring boot added Enable binding
#EnableBinding({MessageChannels.class})
#SpringBootApplication
public class Configissue1124Application {
public static void main(String[] args) {
SpringApplication.run(Configissue1124Application.class, args);
}
}
Now simple straightforward massage channel to to dispatch massage
interface MessageChannels {
#Input("saviyntSampleQueueA")
SubscribableChannel queueA();
#Input("saviyntSampleQueueB")
SubscribableChannel queueB();
}
When i ran the Boot Application its not creating any Virtualhost on the system . i tried using config server buy providing same configuration but still no luck
can you please find if some thing am missing.
Thanks in Advance
The AMQP protocol (or RabbitMQ REST API) provides no mechanism to provision virtual hosts from the client.
Virtual hosts must be provisioned manually on the server.
I try to run Eureka Server and Spring Boot Admin Server in one Application (SBA Docu says this is possible). Eureka is working as intended but the Admin App still shows zero Applications.
Spring Boot Version 2.0.3,
Spring Boot Admin Version 2.0.1
Eureka and SBA Server
#SpringBootApplication
#EnableEurekaServer
#EnableDiscoveryClient
#EnableAdminServer
class KotlintestApplication
fun main(args: Array<String>) {
SpringApplication.run(KotlintestApplication::class.java, *args)
}
Server bootstrap.yml
spring:
application:
name: server
Server application.yml
spring:
boot:
admin:
context-path: /admin
eureka:
instance:
leaseRenewalIntervalInSeconds: 10
client:
registerWithEureka: false
fetchRegistry: false
serviceUrl:
defaultZone: http://localhost:8080/eureka
Client
#EnableDiscoveryClient
#SpringBootApplication
class KotlintestApplication
fun main(args: Array<String>) {
SpringApplication.run(KotlintestApplication::class.java, *args)
}
#Configuration
class SecurityPermitAllConfig : WebSecurityConfigurerAdapter() {
#Throws(Exception::class)
override fun configure(http: HttpSecurity) {
http.authorizeRequests().anyRequest().permitAll()
.and().csrf().disable()
}
}
Client bootstrap.yml
spring:
application:
name: client
server:
port: 0
Client application.yml
management:
endpoints:
web:
exposure:
include: "*"
endpoint:
health:
show-details: ALWAYS
eureka:
instance:
hostname: localhost
health-check-url-path: /actuator/health
status-page-url-path: /actuator/info
client:
serviceUrl:
defaultZone: http://127.0.0.1:8080/eureka/
Found the answer myself
Remove the fetchRegistry: false from the server application.yaml.
The Server has to fetch the registry to see the clients ...
Btw: You should set an instanceId if you want to run multiple instances with a random port on the same host. Otherwise SBA can't differ between the instances.
eureka:
instance:
instanceId : client-${random.uuid}
I am trying to get a simple microservice to register to the Eureka Server and then have Zuul proxy to the microservice. I got the microservice to register to the Eureka Server. However, whenever I bring the Zuul service up I see that it is not registering to the Eureka Server. Whenever I try to route to the microservice I get the below exception:
Load balancer does not have available server for client: microservice
I am not able to figure out where the issue is. Any help would be greatly appreciated
Below are my Spring Boot classes for each of these components.
Microservice Components
MicroserviceApplication.java
#SpringBootApplication(scanBasePackages = { "some.package.controller", "some.package.service" })
#EnableEurekaClient
#EnableJpaRepositories("some.package.repository")
#EntityScan("some.package.entity")
public class MicroserviceApplication {
public static void main(String[] args) {
SpringApplication.run(MicroserviceApplication.class, args);
}
}
bootstrap.yml
server:
port: 8090
info:
component: Core Services
spring:
application:
name: microservice
application.yml
eureka:
instance:
leaseRenewalIntervalInSeconds: 1
leaseExpirationDurationInSeconds: 2
client:
serviceUrl:
defaultZone: http://localhost:8761/eureka/
healthcheck:
enabled: true
lease:
duration: 5
#some other logging and jpa properties below
Eureka Server Components
EurekaServerApplication.java
#SpringBootApplication
#EnableEurekaServer
public class EurekaServerApplication {
public static void main(String[] args) {
SpringApplication.run(EurekaServerApplication.class, args);
}
}
bootstrap.yml
spring:
application:
name: discovery-server
application.yml
server:
port: 8761
info:
component: Discovery Server
eureka:
client:
registerWithEureka: false
fetchRegistry: false
serviceUrl:
defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/
instance:
hostname: localhost
server:
waitTimeInMsWhenSyncEmpty: 0
API Gateway Components
ZuulGatewayApplication.java
#SpringBootApplication
#EnableZuulProxy
public class ZuulGatewayApplication {
public static void main(String[] args) {
SpringApplication.run(ZuulGatewayApplication.class, args);
}
#Bean
public ZuulGatewayPreFilter gatewayPreFilter() {
return new ZuulGatewayPreFilter();
}
}
bootstrap.yml
spring:
application:
name: api-gateway
application.yml
server:
port: 8888
info:
component: API Gateway
eureka:
instance:
leaseRenewalIntervalInSeconds: 1
leaseExpirationDurationInSeconds: 2
client:
serviceUrl:
defaultZone: http://localhost:8761/eureka/
zuul:
routes:
microservice:
path: /microservice/**
serviceId: microservice
Adding #EnableEurekaClient solved this issue. The Zuul application is now discoverable in the Eureka server and is able to route requests.
I had the correct annotation on my Zuul application #EnableZuulClient but still got that error.
The problem was that I started all the applications (Eureka, Zuul and the third application) at the same time instead of doing this one by one. So they all needed time to register. After some time, the error was gone and I could reach my service through Zuul client.
Wrong spring.application.name might be the reason for this error other than
adding #EnableEurekaClient to the Zuul application class.
My setup is spring boot cloud using netflix library
I managed to have Turbine aggregating Hystrix metrics from one service. However when I add more services I cant see them.
This is my setup (also uploaded this into github at:
Project On Github
Service 1:
FlightIntegrationService:
#SpringBootApplication
#EnableCircuitBreaker
#EnableDiscoveryClient
#ComponentScan("com.bootnetflix")
public class FlightIntegrationApplication {
..
}
application.yaml
server:
port: 0
eureka:
instance:
leaseRenewalIntervalInSeconds: 10
metadataMap:
instanceId: ${vcap.application.instance_id:${spring.application.name}:${spring.application.instance_id:${random.value}}}
client:
registryFetchIntervalSeconds: 5
bootstrap.yaml
spring:
application:
name: flight-integration-service
service 2:
Coupon service:
#SpringBootApplication
#EnableCircuitBreaker
#EnableDiscoveryClient
#ComponentScan("com.bootnetflix")
public class CouponServiceApp {
..
}
application yaml:
server:
port: 0
eureka:
instance:
leaseRenewalIntervalInSeconds: 10
metadataMap:
instanceId: ${vcap.application.instance_id:${spring.application.name}:${spring.application.instance_id:${random.value}}}
client:
registryFetchIntervalSeconds: 5
Eureka app service:
#SpringBootApplication
#EnableEurekaServer
public class EurekaApplication {
Hystrix dashboard service:
#SpringBootApplication
#EnableHystrixDashboard
#Controller
public class HystrixDashboardApplication {
application.yaml:
info:
component: Hystrix Dashboard
endpoints:
restart:
enabled: true
shutdown:
enabled: true
server:
port: 7979
logging:
level:
ROOT: INFO
org.springframework.web: DEBUG
eureka:
client:
region: default
preferSameZone: false
us-east-1:
availabilityZones: default
instance:
virtualHostName: ${spring.application.name}
bootstrap.yaml
spring:
application:
name: hystrixdashboard
and finally Turbine-service:
EnableAutoConfiguration
#EnableTurbine
#EnableEurekaClient
#EnableHystrixDashboard
public class TurbineApplication {
application.yaml:
info:
component: Turbine
PREFIX:
endpoints:
restart:
enabled: true
shutdown:
enabled: true
server:
port: 8989
management:
port: 8990
eureka:
instance:
leaseRenewalIntervalInSeconds: 10
client:
serviceUrl:
defaultZone: http://localhost:8761/eureka/
#turbine:
# aggregator:
# clusterConfig: FLIGHT-INTEGRATION-SERVICE,COUPON-SERVICE
#appConfig: flight-integration-service,coupon-service
#turbine:
# clusterNameExpression: 'default'
# appConfig: flight-integration-service,coupon-service
turbine:
appConfig: coupon-service,flight-integration-service
clusterNameExpression: new String('default')
#As you can see I tried diff configurations.
What am i doing wrong? why I cant actually aggregate both services hystrix metrics(flight-integration service,coupon-service)
Thank you.
solved by #spencergibb suggestation. I added to each of the client the dependency of spring-boot-starter-amqp and created rabbitMQ broker. Turbine is aggregating all messages via amqp and I was able to see all Hystrix commands aggregated on my hystrix dashboard server