Implement GKE patterns naming conventions (#2120)

* GKE Pattern Naming

* Add MySQL pattern estimated cost

---------

Co-authored-by: Ludovico Magnocavallo <ludomagno@google.com>

blueprints/gke/patterns/batch/tutorial.md

@@ -79,9 +79,12 @@ To get started, click Start.
 
 ```hcl
 project_id     = "<walkthrough-project-name/>"
-cluster_name   = "cluster"
+cluster_name   = "gke-patterns-cluster"
 cluster_create = {
   deletion_protection = false
+  labels = {
+    pattern = "kafka"
+  }
 }
 region         = "europe-west1"
 vpc_create = {

blueprints/gke/patterns/kafka/tutorial.md

@@ -39,9 +39,12 @@ To get started, click Start.
 
 ```hcl
 project_id     = "<walkthrough-project-name/>"
-cluster_name   = "cluster"
+cluster_name   = "gke-patterns-cluster"
 cluster_create = {
   deletion_protection = false
+  labels = {
+    pattern = "kafka"
+  }
 }
 region         = "europe-west1"
 vpc_create = {

blueprints/gke/patterns/mysql/tutorial.md

@@ -10,6 +10,8 @@ During this guide you will deploy a new GKE cluster, MySQL database and you will
 
 **Prerequisites**: A GCP Project with billing enabled
 
+**Estimated cost**: $10/day
+
 Click the **Start** button to move to the next step.
 
 
@@ -26,11 +28,14 @@ Click the **Start** button to move to the next step.
 2. Open <walkthrough-editor-open-file filePath="autopilot-cluster/terraform.tfvars">autopilot-cluster/terraform.tfvars</walkthrough-editor-open-file> file.
 
 3. Paste the following content into the file and adapt for your needs if necessary
-   ```tfvars
+   ```hcl
    project_id     = "<walkthrough-project-id/>"
-   cluster_name   = "cluster-00"
+   cluster_name   = "gke-patterns-cluster"
    cluster_create = {
      deletion_protection = false
+     labels = {
+       pattern = "mysql"
+     }
    }
    region = "europe-west4"
    vpc_create = {

blueprints/gke/patterns/redis-cluster/tutorial.md

@@ -40,9 +40,12 @@ To get started, click Start.
 
 ```hcl
 project_id     = "<walkthrough-project-name/>"
-cluster_name   = "cluster"
+cluster_name   = "gke-patterns-cluster"
 cluster_create = {
   deletion_protection = false
+  labels = {
+    pattern = "redis-cluster"
+  }
 }
 region         = "europe-west1"
 vpc_create = { }