Google Cloud Function gen 2 is now the default

Author: loicmathieu

docs/src/main/asciidoc/funqy-gcp-functions.adoc

@@ -81,8 +81,6 @@ In this example, we will create two background functions and a cloud events func
 Background functions allow you to react to Google Cloud events like PubSub messages, Cloud Storage events, Firestore events, ...
 Cloud events functions allow you to react to supported events using the Cloud Events specification.
 
-NOTE: Quarkus supports Cloud Functions gen 1 and gen 2. For an overview of Cloud Functions gen 2 see https://cloud.google.com/functions/docs/2nd-gen/overview[this page] on the Google Cloud Functions documentation. To use gen 2 you must add the `--gen2` parameter.
-
 [source,java]
 ----
 import jakarta.inject.Inject;
@@ -231,8 +229,6 @@ You can also simply add a file to Cloud Storage using the command line of the we
 
 === Cloud Events Functions - Cloud Storage
 
-WARNING: Cloud Events Function is a feature of Cloud Functions gen 2 only.
-
 Before deploying your function, you need to create a bucket.
 
 [source,bash]
@@ -244,7 +240,7 @@ Then, use this command to deploy to Google Cloud Functions:
 
 [source,bash]
 ----
-gcloud functions deploy quarkus-example-cloud-event --gen2 \
+gcloud functions deploy quarkus-example-cloud-event \
   --entry-point=io.quarkus.funqy.gcp.functions.FunqyCloudEventsFunction \
   --runtime=java21 --trigger-bucket=example-cloud-event --source=target/deployment
 ----
@@ -324,8 +320,6 @@ This will call your PubSub background function with a Cloud Storage event `{"nam
 
 === Cloud Events Functions - Cloud Storage
 
-WARNING: Cloud Events Function is a feature of Cloud Functions gen 2 only.
-
 For cloud events functions, you launch the invoker with a target class of `io.quarkus.funqy.gcp.functions.FunqyCloudEventsFunction``.
 
 [source,bash,subs="attributes"]
@@ -457,8 +451,6 @@ class GreetingFunctionsStorageTest {
 
 === Cloud Events Functions - Cloud Storage
 
-WARNING: Cloud Events Function is a feature of Cloud Functions gen 2 only.
-
 [source,java]
 ----
 import static io.restassured.RestAssured.given;

docs/src/main/asciidoc/gcp-functions-http.adoc

@@ -63,13 +63,11 @@ one for Reactive routes and one for xref:funqy-http.adoc[Funqy HTTP].
 [NOTE]
 ====
 These various endpoints are for demonstration purposes.
-For real life applications, you should choose one of this technology and stick to it.
+For real life applications, you should choose one of these technologies and stick to it.
 ====
 
 If you don't need endpoints of each type, you can remove the corresponding extensions from your `pom.xml`.
 
-NOTE: Quarkus supports Cloud Functions gen 1 and gen 2. For an overview of Cloud Functions gen 2 see https://cloud.google.com/functions/docs/2nd-gen/overview[this page] on the Google Cloud Functions documentation. To use gen 2 you must and add the `--gen2` parameter.
-
 === The Jakarta REST endpoint
 
 [source,java]

docs/src/main/asciidoc/gcp-functions.adoc

@@ -58,8 +58,6 @@ gcloud auth login
 For this example project, we will create four functions, one `HttpFunction`, one `BackgroundFunction` (Storage event),
 one `RawBackgroundFunction` (PubSub event) and one `CloudEventsFunction` (storage event using the Cloud Events specification).
 
-NOTE: Quarkus supports Cloud Functions gen 1 and gen 2. For an overview of Cloud Functions gen 2 see https://cloud.google.com/functions/docs/2nd-gen/overview[this page] on the Google Cloud Functions documentation. To use gen 2 you must add the `--gen2` parameter.
-
 == Choose Your Function
 
 The `quarkus-google-cloud-functions` extension scans your project for a class that directly implements the Google Cloud `HttpFunction`, `BackgroundFunction`, `RawBackgroundFunction` or `CloudEventsFunction` interface.
@@ -193,8 +191,6 @@ public class RawBackgroundFunctionPubSubTest implements RawBackgroundFunction {
 
 === The CloudEventsFunction
 
-WARNING: `CloudEventsFunction` is a feature of Cloud Functions gen 2 only.
-
 This `CloudEventsFunction` is triggered by a Cloud Events Storage event, you can use any Cloud Events supported by Google Cloud instead.
 
 [source,java]
@@ -332,14 +328,12 @@ gcloud functions call quarkus-example-pubsub --data '{"data":{"greeting":"world"
 
 === The CloudEventsFunction
 
-WARNING: `CloudEventsFunction` is a feature of Cloud Functions gen 2 only.
-
 This is an example command to deploy your `CloudEventsFunction` to Google Cloud, as the function is triggered by a Storage event,
 it needs to use `--trigger-bucket` parameter with the name of a previously created bucket:
 
 [source,bash]
 ----
-gcloud functions deploy quarkus-example-cloud-event --gen2 \
+gcloud functions deploy quarkus-example-cloud-event \
   --entry-point=io.quarkus.gcp.functions.QuarkusCloudEventsFunction \
   --runtime=java21 --trigger-bucket=example-cloud-event --source=target/deployment
 ----
@@ -429,8 +423,6 @@ This will call your PubSub background function with a PubSubMessage `{"greeting"
 
 === The CloudEventsFunction
 
-IMPORTANT: `CloudEventsFunction` is a feature of Cloud Function gen 2 only.
-
 For cloud events functions, you launch the invoker with a target class of `io.quarkus.gcp.functions.QuarkusCloudEventsFunction`.
 
 [source,bash,subs="attributes"]
@@ -592,8 +584,6 @@ class RawBackgroundFunctionPubSubTestCase {
 
 === The CloudEventsFunction
 
-WARNING: Cloud Events Function is a feature of Cloud Functions gen 2 only.
-
 [source,java]
 ----
 import static io.restassured.RestAssured.given;