For example, I have settings like code below which Spring Boot Actuator uses.
management:
server:
port: 60001
security:
enabled: false
And I found out that if I will write this setting with mistakes. For example (code below):
management:
server:
port: 60001
security:
enabled: fase # wrong typed a `false` word
Spring Boot will not do anything, and the application will have build successfully.
Spring boot will validate the data as long as #ConfigurationProperties exist in core. The problem is that your #ConfigurationProperties may not exist before or already deprecated in your spring boot version.
Below is the comparison of management.server class with #ConfigurationProperties.
Try to change the port with string and spring boot with validate the data.
Look also at ManagementContextAutoConfiguration.class if your using spring boot 2 you will see that it loads the class ManagementServerProperties and WebEndpointProperties
If you still needed to validate your yaml you can refer to SnakeYAML.
Related
I have a vault server hosted in Openshift and I have to access secrets from the Vault into my spring application.
My bootstrap.yml looks like this :
spring:
application:
name: application-name
profiles: dev
cloud:
vault:
fail-fast: true
host: HOST
port: 443
scheme: https
token: MY_TOKEN
authentication: TOKEN
kv:
enabled: true
backend: secret
profile-separator: '/'
application-name: application-name
I checked vault logs and able to make connection from spring application to vault.
I can access the secret using Value Property Source.
However, I want to populate the secret's value into application.properties to update properties like spring.datasource.username and spring.datasource.password.
Is there any way to access the secret directly from application.properties?
TL; DR: Yes, you can use Vault properties in application.(properties|yml). It's not recommended to use these in bootstrap.(properties.yml).
Spring Cloud comes with a Bootstrap context where configuration libraries (such as Spring Cloud Consul, Spring Cloud Config and Spring Cloud Vault) are initialized. These integrations fetch configuration and provide these as a parent PropertySources to your application. Spring Boot considers these (you have options to use these PropertySources with the highest/lowest priority) during property binding and when you resolve a property value using Environment.
When bootstrapping an application, then typically one of the first things that happen is property binding in #ConfigurationProperties objects. At the time when bootstrap.(properties|yml) is loaded, typically Spring Cloud Config integrations didn't run yet so at that time you don't see properties contributed by these libraries. Therefore, there's the split between bootstrap context and the actual application context.
What is bootstrap yaml in spring boot?
And could you advise where I can use it?
bootstrap.yml is used in spring cloud
It is starting before application.yml
It is almost use with spring cloud config server
Spring cloud config server is server which is used to externilize your application configuration.
And when starting your application bootstrap.yml will take the configuration from spring cloud config server.
It also can use encrypting and decrypting some information by :
'{cipher}someyour encoded text'
and server will decode it while pulling the configurations
But you need to create jks
You can reach the documentation for more information about spring cloud :
https://spring.io/guides/gs/centralized-configuration/
Configuration files in spring boot will be loaded in such order:
1. src/main/resources/bootstrap.yml
2. src/main/resources/application.yml
3. config/application.yml
I have followed this official tutorial Getting Started Centralized Configuration using spring boot 2.0.0.RELEASE and spring cloud Finchley.M8
But refreshing properties on the fly (Without restart) is not working.
After Some debugging, I noticed that in method refresh() from ContextRefresher.class, it returns the changed keys correctly, but after reconstructing the bean annotated with #RefreshScope in the next use. It still sees the old value not the updated one.
Note: This was working perfectly with spring boot v 1.5.6 and spring cloud Edgware.RELEASE.
Any help please?
Thanks
It seems spring.cloud.config.uri in spring boot 2.0.1.RELEASE always looking for port 8888 and not accepting other values, so I put the below configuration (you can ignore it, as it is the default value for the client, and the server should run on port 8888)
spring:
cloud:
config:
uri: http://localhost:8888
I also tried to expose all other services in the client for testing as follows
management:
endpoints:
web:
exposure:
include: '*'
or use the following to allow only refresh
management:
endpoints:
web:
exposure:
include: refresh
Then called POST method not GET for refreshing
$ curl -X POST localhost:8080/actuator/refresh -d {} -H "Content-Type: application/json"
Finally, it works.
Instead of Method "POST" , use "OPTIONS" method to call the "actuator/refresh" for spring boot 2.0 or higher.
For lower versions (<2.0), use the endpoint "context/refresh"
Make sure , you have management.endpoints.web.exposure.include=* defined in application.properties.
Use below in application.properties-
management.endpoint.refresh.enabled=true
management.endpoint.restart.enabled=true
management.endpoint.health.enabled=true
management.endpoint.health.show-details=always
management.endpoint.info.enabled=true
management.endpoints.web.exposure.include=info,health,refresh
Using yaml configuration file it was not working for me and when switched to properties file, it worked with above configuration.
Thanks
I want to change context path for spring boot 2 for example i want to serve on http://localhost:8080/test/
i mean it not working for me with spring-boot-starter-webflux:2.0.0.RELEASE
it only working with spring-boot-starter-web::2.0.0.RELEASE
I have tried
server.servlet.context-path=/test
But nothing happened to me still serve on url http://localhost:8080/
If you use the servlet API then the property is now called
server.servlet.context-path=/myapp
As confirmed by Andy Wilkinson #andy-wilkinson of the Spring Boot team via Gitter
There’s no concept of context path in WebFlux so there’s no equivalent property
i.e WebFlux doesn't support context path configuration
In spring boot 2.3.x you can set spring.webflux.base-path property
spring.webflux.base-path=/path
In reference to Spring Boot 2.x. below configuration apply for application.yml
server:
port: 8080
servlet:
context-path: /test
For application.properties configuration are
server.port=8080
server.servlet.context-path= /test
For use cases where WebFlux application is behind load balancer/proxy you can use dedicated class - ForwardedHeaderTransformer that will extract path context from X-Forwarded-Prefix and will add it to ServerHttpRequest.
Doing so you won't need to modify global context-path (which does not make sense in WebFlux)
More about it here: https://docs.spring.io/spring/docs/current/spring-framework-reference/web-reactive.html#webflux-web-handler-api
=
Getting forbidden error while accessing actuator running on different port other than application port using custom spring security configuration.
application.properties file
management.security.enabled=false
management.context-path=/manage
management.port=8085
server.context-path=/lnhcverifyhcp
server.port=8090
spring boot version - 1.3.3.RELEASE
Getting forbidden error on accessing actuator url's
I had the same issue, my mcAfee using that port. Actually 403 is from McAfee.
hit this url and see what you get - http://localhost:8081/
I'm assuming that you're using Spring Security with Spring Actuator. So, the configuration to escape the Actuator out the Security are:
endpoints:
health:
sensitive: false
management:
security:
enabled: false
Hope this help!
You can disable security on the management port by adding this to your application.properties file:
management.security.enabled=false
Or, set your own username and password:
See https://docs.spring.io/spring-boot/docs/current/reference/html/production-ready-monitoring.html