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Spring Boot Admin
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Johannes Edmeier
@joshiste
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Setting things up
(demo time)
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Setting up the SBA Server (1)
1. Generate web project using Spring Initializr
$ curl https://start.spring.io/starter.tgz \
-d dependencies=web,\
codecentric-spring-boot-admin-client,\
codecentric-spring-boot-admin-server \
| tar -xzvf -
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Setting up the SBA Server (2)
@EnableAdminServer
@SpringBootApplication
public class AdminServerApplication {
...
}
2. Import Configuration to the Application
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Register client applications (1)
de.codecentric
spring-boot-admin-starter-client
2.0.0
1. Add dependency
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Register client applications (2)
spring.boot.admin.client.url=http://localhost:8081
management.endpoints.web.exposure.include=*
management.endpoint.health.show-details=always
2. Configure SBA Server localtion and expose endpoints
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Easy client tweaks
spring.application.name=spring-petclinic
logging.file=target/petclinic.log
info.sources=https://github.com/spring-projects/spring-petclinic
org.springframework.boot
spring-boot-maven-plugin
build-info
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alternatively use
Eureka, Consul, Zookeeper,
static config
… or any other Spring Cloud Discovery Client
Register client applications
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alternatively use
Eureka, Consul, Zookeeper,
static config
… or any other Spring Cloud Discovery Client
Register client applications
Postponed to 2.0.1
(snapshot available)
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Behind the Scenes
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SBA Client SBA Server
client registers periodically via http post
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SBA Client SBA Server
server polls health endpoint via http
… monitoring non-Boot applications is possible
(just health checking)
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Notifications
HipChat
eMail
… or implement your own
… simply configured via properties
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SBA Client
server forwards requests to clients
(using zuul)
SBA UI
SBA Server
… clients must expose actuator endpoints using http
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… can be implemented using Spring Security
e.g. Basic Auth, JWT, session based, …
… custom headers can be injected implementing a
HttpHeadersProvider
Security
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Customization –
HttpHeadersProvider
@Bean
public HttpHeadersProvider injectHeaders() {
return instance -> {
HttpHeaders headers = new HttpHeaders()
headers.set("X-CUSTOM", "1234567");
return headers;
};
}
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Customization -
InstanceExchangeFilterFunction
@Bean
public InstanceExchangeFilterFunction auditLog() {
return (instance, request, next) -> {
if (HttpMethod.POST.equals(request.method())) {
log.info("{} for {} on {}",
request.method(), instance.getId(), request.url());
}
return next.exchange(request);
};
}
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Customization -
Notifier
@Bean
public Notifier loggerNotifier() {
return event -> {
log.info("Event {}", event.toString());
return Mono.empty();
};
}
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Webflux Support
Out of the Box Cloudfoundry Support
Html-Templates for Mail-Notifications
Version is also looked up in Metadata
Sessions Endpoint Support
Wallboard View
Runs on Java 10
New Features in 2.0
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Bugfixes… Bugfixes… Bugfixes…
Spring Cloud Finchley Support
Custom Views (for Custom Actuator Endpoints)
Multi-Instances-Actions (e.g. Setting Loglevels)
. . .
What to Expect in the Future
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Questions?
[spring-boot-admin]
codecentric/spring-boot-admin
GITTER codecentric/spring-boot-admin