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| #!/usr/bin/env ruby | |
| # frozen_string_literal: true | |
| # Lives in .kamal/update | |
| require "json" | |
| require "net/http" | |
| require "uri" | |
| require "yaml" | |
| CONFIG = YAML.load_file("config/deploy.yml") | |
| ACCESSORIES = CONFIG["accessories"] | |
| MAX_RESULTS = 30 | |
| UNSUPPORTED = ["ghcr.io"].freeze | |
| # These suffixes are just different versions of the same image. | |
| # When it comes to versioning, we only care about the version number. | |
| def normalize_tag(tag) | |
| tag.sub(/^v|-ubuntu.*|-alpine.*|-bookworm.*|-bullseye.*/, "") | |
| end | |
| def scrape_tags(repository, service) | |
| url, tags_under_key = case service | |
| when "dockerhub" | |
| [URI("https://hub.docker.com/v2/repositories/#{repository}/tags?page_size=#{MAX_RESULTS}"), "results"] | |
| when "quay" | |
| [URI("https://quay.io/api/v1/repository/#{repository}/tag/"), "tags"] | |
| end | |
| response = Net::HTTP.get_response(url) | |
| if response.is_a?(Net::HTTPSuccess) | |
| data = JSON.parse(response.body) | |
| data[tags_under_key].map { |tag| tag["name"] } # rubocop:disable Rails/Pluck | |
| else | |
| puts "💣 Error: #{response.code}\n\n" | |
| end | |
| end | |
| def scrape_google_registry(repository) | |
| response = Net::HTTP.get_response(URI("https://gcr.io/v2/#{repository}/tags/list")) | |
| if response.is_a?(Net::HTTPSuccess) | |
| data = JSON.parse(response.body) | |
| data["tags"] | |
| else | |
| puts "💣 Error: #{response.code}\n\n" | |
| end | |
| end | |
| ACCESSORIES.each_value do |config| # rubocop:disable Metrics/BlockLength | |
| image, current_tag = config["image"].split(":") | |
| next puts "⏭️ Skipping #{image}, no tag specified\n\n" if current_tag.nil? | |
| unsupported_message = <<~MESSAGE | |
| 😓 Skipping #{image}, not supported...yet | |
| You might want to manually check for updates at 🛜 https://#{image} | |
| MESSAGE | |
| next puts unsupported_message if image.start_with?(*UNSUPPORTED) | |
| repository = image.sub(%r{lscr.io/|quay.io/|gcr.io/}, "").then do |repo| | |
| repo.include?("/") ? repo.split("/") : ["library", repo] | |
| end.join("/") | |
| puts "👀 Checking image updates for #{repository} (Current version: #{current_tag})" | |
| tags = case image | |
| when /quay.io/ | |
| scrape_tags(repository, "quay") | |
| when /gcr.io/ | |
| scrape_google_registry(repository) | |
| else | |
| scrape_tags(repository, "dockerhub") | |
| end | |
| local_tag = normalize_tag(current_tag) | |
| tags.each do |tag| | |
| upstream_tag = normalize_tag(tag) | |
| next unless Gem::Version.correct?(upstream_tag) | |
| if Gem::Version.new(local_tag) < Gem::Version.new(upstream_tag) # rubocop:disable Style/IfUnlessModifier | |
| break puts " 🚀 New version available: #{tag}" | |
| end | |
| end | |
| puts "\n" | |
| end |
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