feat: add dockerhub prevention script

dockerhub.sh

@@ -0,0 +1,41 @@
+#!/bin/bash
+
+# Find all values.yaml files in subdirectories
+find . -type f -name "values.yaml" | while read -r file; do
+
+
+    # Extract repository references matching docker.io/*
+    grep -oE 'repository: docker.io/[^[:space:]]+' "$file" | while read -r line; do
+        repo=$(echo "$line" | cut -d ' ' -f2 | sed 's|docker.io/||')
+        echo "Checking repo $repo for file $file"
+        # Check if equivalent ghcr.io, public.ecr.aws, or gcr.io repositories exist
+        ghcr_url="https://ghcr.io/v2/$repo/tags/list"
+        quay_url="https://quay.io/v2/$repo/tags/list"
+        ecr_url="https://public.ecr.aws/v2/$repo/tags/list"
+        # Not sure if we should
+        # gcr_url="https://mirror.gcr.io/v2/$repo/tags/list"
+
+        ghcr_exists=$(curl -s -o /dev/null -w "%{http_code}" "$ghcr_url")
+        quay_exists=$(curl -s -o /dev/null -w "%{http_code}" "$quay_url")
+        ecr_exists=$(curl -s -o /dev/null -w "%{http_code}" "$ecr_url")
+        # gcr_exists=$(curl -s -o /dev/null -w "%{http_code}" "$gcr_url")
+
+        if [[ "$ghcr_exists" == "200" ]]; then
+            new_repo="ghcr.io/$repo"
+        elif [[ "$quay_exists" == "200" ]]; then
+            new_repo="quay.io/$repo"
+        elif [[ "$ecr_exists" == "200" ]]; then
+            new_repo="public.ecr.aws/$repo"
+        # Not sure if we should
+        # elif [[ "$gcr_exists" == "200" ]]; then
+        #    new_repo="mirror.gcr.io/$repo"
+        fi
+        if [[ $new_repo != "" ]]; then
+          # Replace repository reference in the file
+          sed -i '' "s|repository: docker.io/$repo|repository: $new_repo|g" "$file"
+          ## For Linux
+          # sed -i "s|repository: docker.io/$repo|repository: $new_repo|g" "$file"
+          echo "Updated repository in $file to $new_repo"
+        fi
+    done
+done