[EC-318] Added some comments inside CORE pipelines (#1036)

.github/workflows/core_code_review.yaml

@@ -1,5 +1,12 @@
 name: PR - Core TF Validation
 
+# This pipeline starts automatically when a PR is opened.
+#
+# It is responsible for managing changes related solely to the NEW infrastructure. 
+# Therefore, it checks whether the changes have occurred only in the directories listed in "paths."
+#
+## NOTE: 'NEW infrastructure' refers to the new Terraform infrastructure located in the src/core/prod folder, which no longer requires the terraform.sh script to be applied.
+
 on:
   workflow_dispatch:
   pull_request:

.github/workflows/core_code_review_weu.yaml

@@ -1,5 +1,11 @@
 name: WEU - Core TF Validation (PROD)
 
+# This pipeline starts automatically when a PR is opened.
+#
+# It is responsible for managing only the legacy part (West Europe), 
+# ensuring that changes have occurred exclusively within the directories listed in "paths." 
+# It ignores the folders related to the new infrastructure, indicated by the symbol '!', which denotes an excluded path.
+
 on:
   workflow_dispatch:
   pull_request:

.github/workflows/core_deploy.yaml

@@ -1,5 +1,14 @@
 name: PR - Core TF Apply
 
+# This pipeline starts automatically when a PR is merged into 'main'.
+#
+# It is responsible for managing changes related solely to the NEW infrastructure, 
+# ensuring that changes have occurred exclusively within the directories listed in "paths."
+#
+## NOTE: 'NEW infrastructure' refers to the new Terraform infrastructure located in the src/core/prod folder, which no longer requires the terraform.sh script to be applied.
+#
+# This pipeline first executes a plan and then an apply, which must be approved by the team.
+
 on: 
   workflow_dispatch:
   push:

.github/workflows/core_deploy_weu.yaml

@@ -1,6 +1,13 @@
 name: WEU - Core TF Apply (PROD)
 
-# Only manual
+# This pipeline starts automatically when a PR is merged into 'main'.
+#
+# It is responsible for managing only the legacy part (West Europe), 
+# ensuring that changes have occurred exclusively within the directories listed in "paths." 
+# It ignores the folders related to the new mode, indicated by the symbol '!', which denotes an excluded path.
+#
+# This pipeline will use the terraform.sh script, which first executes a plan and then an apply, both of which must be approved by the team.
+
 on: 
   workflow_dispatch:
   push: