Add json example for nested object in the doc

[zodd3131]

Describe the feature
A new feature has been added that provides the ability to pass broker.properties through a json secret.
ActiveMQArtemisSecurity is now a deprecated resource and it's now recommanded to provide configuration with spec.brokerProperties. I would like to implement what it is described here : providing-additional-brokerproperties-configuration-from-a-secret).
How to write nested object and what to escape as characters?
How to translate the yaml below into a json secret?

securitySettings:
    broker:
      - match: "app.europe.#"
        permissions:
          - operationType: createNonDurableQueue
            roles: ["admin"]
          - operationType: deleteNonDurableQueue
            roles: ["admin"]
          - operationType: createDurableQueue
            roles: ["admin"]
          - operationType: deleteDurableQueue
            roles: ["admin"]
          - operationType: createAddress
            roles: ["admin"]
          - operationType: deleteAddress
            roles: ["admin"]
          - operationType: createAddress
            roles: ["admin"]
          - operationType: consume
            roles: ["admin", "guest"]
          - operationType: send
            roles: ["admin"]

I would like to complete the documentation with more complex examples.

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[brusdev]

@zodd3131 you can convert security settings of ActiveMQArtemisSecurity CR to broker properties ActiveMQArtemis CR, .i.e.

apiVersion: broker.amq.io/v1beta1
kind: ActiveMQArtemis
metadata:
  name: artemis-broker
spec:
  brokerProperties:
    - 'securityRoles."app.europe.#".admin.createNonDurableQueue=true'
    - 'securityRoles."app.europe.#".admin.deleteNonDurableQueue=true'
    - 'securityRoles."app.europe.#".admin.createDurableQueue=true'
    - 'securityRoles."app.europe.#".admin.deleteDurableQueue=false'
    - 'securityRoles."app.europe.#".admin.createAddress=false'
    - 'securityRoles."app.europe.#".admin.deleteAddress=false'
    - 'securityRoles."app.europe.#".admin.consume=false'
    - 'securityRoles."app.europe.#".admin.send=false'

[zodd3131]

Thank you for the reply @brusdev

May I ask you where did you find the documentation about securityRoles instead of security-settings. I was looking here

Maybe can I add more explanation in the documentation below ?
https://artemiscloud.io/docs/help/operator/#providing-additional-brokerproperties-configuration-from-a-secret

[brusdev]

@zodd3131 in the Apache ActiveMQ Artemis project there is a doc section and a test class for broker properties:
https://activemq.apache.org/components/artemis/documentation/latest/configuration-index.html#broker-properties

The configuration properties are low level, lower level than xml, however it is very powerful; any accessible attribute of the internal org.apache.activemq.artemis.core.config.impl.ConfigurationImpl objects can be modified.

https://github.com/apache/activemq-artemis/blob/main/artemis-server/src/test/java/org/apache/activemq/artemis/core/config/impl/ConfigurationImplTest.java#L1688

Maybe can I add more explanation in the documentation below ?

Any contributes is always welcome but I think that should be a contribute for the Apache ActiveMQ Artemis project doc.