Enhance image tag validation in deployment scripts for SemVer compliance (#1569)

Co-authored-by: rambhatt <rambhatt@microsoft.com>

Author: ramanujbhattacharjee93

.pipelines/azure_pipeline_validation_appmonitoring.yaml

@@ -53,7 +53,8 @@ jobs:
   ## preview release are in format preview-Major.Minor.Patch
   - bash: |
       commit=$(git describe --tags --abbrev=0)
-      imageTag="$commit"
+      # Remove 'appmonitoring-' prefix if present for SemVer compatibility
+      imageTag="${commit#appmonitoring-}"
             
       echo "imageTag is $imageTag"
       

deployment/mergebranch-webhook-deployment/ServiceGroupRoot/Scripts/pushOciChartsToAcr.sh

@@ -32,6 +32,11 @@ fi
 TAG_EXISTS_STATUS=0 #Default value for the condition when the echo fails below
 AZ_ACR_IMPORT_FORCE=""
 
+if [[ ! "$SOURCE_IMAGE_TAG" =~ ^[0-9][0-9A-Za-z\.-]*$ ]]; then
+  echo "-e error SOURCE_IMAGE_TAG must start with a digit and may only contain 0-9, A-Z, a-z, '.', or '-'"
+  echo "SOURCE_IMAGE_TAG was: $SOURCE_IMAGE_TAG"
+  exit 1
+fi
 
 TAG="$SOURCE_IMAGE_TAG-rc.$SOURCE_IMAGE_BUILD_ID"
 if [[ "$TAG" =~ ^(.+)-rc\.[0-9]+$ ]]; then

deployment/mergebranch-webhook-deployment/ServiceGroupRoot/Scripts/pushWebhookToAcr.sh

@@ -15,6 +15,11 @@ fi
 TAG_EXISTS_STATUS=0 #Default value for the condition when the echo fails below
 AZ_ACR_IMPORT_FORCE=""
 
+if [[ ! "$SOURCE_IMAGE_TAG" =~ ^[0-9][0-9A-Za-z\.-]*$ ]]; then
+  echo "-e error SOURCE_IMAGE_TAG must start with a digit and may only contain 0-9, A-Z, a-z, '.', or '-'"
+  echo "SOURCE_IMAGE_TAG was: $SOURCE_IMAGE_TAG"
+  exit 1
+fi
 
 TAG="$SOURCE_IMAGE_TAG-rc.$SOURCE_IMAGE_BUILD_ID"
 if [[ "$TAG" =~ ^(.+)-rc\.[0-9]+$ ]]; then