Add docs for container startup failure policy (#841)

spring-pulsar-docs/src/main/antora/antora.yml

@@ -14,3 +14,4 @@ asciidoc:
   attributes:
     listener-class: PulsarListener@
     template-class: PulsarTemplate@
+    container-class: ConcurrentPulsarListenerContainerFactory@

spring-pulsar-docs/src/main/antora/modules/ROOT/pages/reference/message-listener-startup-failure.adoc

@@ -16,13 +16,12 @@ each attempt.
 However, a custom retry template can be specified on the corresponding container properties.
 If the container fails to restart after the retries are exhausted, it is left in a non-running state.
 
-[discrete]
 == Configuration
 
 [discrete]
 === With Spring Boot
-**TODO**
+When using Spring Boot you can register a `PulsarContainerFactoryCustomizer<{container-class}<?>>` bean that sets the container startup properties.
 
 [discrete]
 === Without Spring Boot
-**TODO**
+However, if you are instead manually configuring the components, you will have to update the container startup properties accordingly when constructing the message listener container factory.

spring-pulsar-docs/src/main/antora/modules/ROOT/pages/reference/pulsar/message-consumption.adoc

@@ -977,6 +977,7 @@ void someMethod() {
 TIP: The id parameter passed to `getListenerContainer` is the container id - which will be the value of the `@PulsarListener` id attribute when pausing/resuming a `@PulsarListener`.
 
 [[message-listener-startup-failure]]
+:container-class: ConcurrentPulsarListenerContainerFactory
 include::../message-listener-startup-failure.adoc[leveloffset=+2]
 
 
@@ -1031,5 +1032,6 @@ public PulsarReaderReaderBuilderCustomizer<String> myCustomizer() {
 
 TIP: If your application only has a single `@PulsarReader` and a single `PulsarReaderReaderBuilderCustomizer` bean registered then the customizer will be automatically applied.
 
-=== Handling Startup Failures
-The same xref:#message-listener-startup-failure[startup failure facilities] available to message listener containers are available for reader containers.
+[[message-reader-startup-failure]]
+:container-class: DefaultPulsarReaderContainerFactory
+include::../message-listener-startup-failure.adoc[leveloffset=+2]

spring-pulsar-docs/src/main/antora/modules/ROOT/pages/reference/reactive-pulsar/reactive-message-consumption.adoc

@@ -207,6 +207,7 @@ The "listener" aspect is provided by the `ReactivePulsarMessageHandler` of which
 NOTE: If topic information is not specified when using the listener containers directly, the same xref:reference/topic-resolution.adoc#topic-resolution-process[topic resolution process] used by the `ReactivePulsarListener` is used with the one exception that the "Message type default" step is **omitted**.
 
 [[message-listener-startup-failure]]
+:container-class: DefaultReactivePulsarListenerContainerFactory
 include::../message-listener-startup-failure.adoc[leveloffset=+2]
 
 [[reactive-concurrency]]

spring-pulsar-docs/src/main/antora/modules/ROOT/pages/whats-new.adoc

@@ -14,6 +14,12 @@ See xref:./reference/custom-object-mapper.adoc[Custom Object Mapper] for more de
 You can specify a default tenant and/or namespace to use when producing or consuming messages against a non-fully-qualified topic URL.
 See xref:./reference/default-tenant-namespace.adoc[Default Tenant / Namespace] for more details.
 
+=== Message Container Startup Policy
+You can now configure the message listener container startup failure policy to `stop`, `continue`, or `retry`.
+For more details see the corresponding section for one of the supported containers xref:./reference/pulsar/message-consumption.adoc#message-listener-startup-failure[@PulsarListener], xref:./reference/pulsar/message-consumption.adoc#message-reader-startup-failure[@PulsarReader], or xref:./reference/reactive-pulsar/reactive-message-consumption.adoc#message-listener-startup-failure[@ReactivePulsarListener]
+
+
+
 === Deprecations
 
 ==== PulsarClient#getPartitionsForTopic(java.lang.String)