Create dockerhub-proxy.md #7

	name: CI

	on:
	workflow_dispatch:
	push:
	branches:
	- main

	jobs:
	test-docker-pull:
	runs-on: ubuntu-latest

	steps:
	- name: Checkout repository
	uses: actions/checkout@v3

	- name: Read and process dockerhub-proxy.md
	id: read_file
	run: \|
	# Read the file and process each line
	urls=()
	while IFS= read -r line; do
	# Remove '- https://' prefix and append to urls array
	url="${line/- https:\/\//}"
	urls+=("$url")
	done < docs/reference/_include/dockerhub-proxy.md

	# Print the array for debugging
	echo "Processed URLs: ${urls[@]}"

	# Save the array to the outputs
	echo "::set-output name=urls::${urls[*]}"

	- name: Docker pull from proxies
	run: \|
	# Read the URLs from the previous step
	urls="${{ steps.read_file.outputs.urls }}"
	IFS=' ' read -r -a url_array <<< "$urls"

	# Try to pull the image from each URL
	for url in "${url_array[@]}"; do
	echo "Trying to pull from $url/library/mysql:5.7"
	docker pull "$url/library/mysql:5.7" && echo "Successfully pulled from $url"
	if [ $? -eq 0 ]; then
	echo "Deleting the pulled image to ensure fresh pull for the next URL"
	docker rmi "$url/library/mysql:5.7"
	else
	echo "Failed to pull from $url"
	fi
	done

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