Renovate should update Dockerfile/Tool Versions (#252)

* Pull out docker versions from comments.

* Try to get Renovate to update stuff together.

* Node-version

.node-version

@@ -1 +1 @@
-18.18.0
+22.9.0

.tool-versions

@@ -1,4 +1,4 @@
 ruby 3.3.6
 awscli 2.11.24
-yarn 1.22.10
+yarn 1.22.10 # datasource=npm depName=yarn versioning=npm
 nodejs 22.9.0

Dockerfile

@@ -1,6 +1,7 @@
 # syntax = docker/dockerfile:1
 
 # Make sure RUBY_VERSION matches the Ruby version in .ruby-version and Gemfile
+# renovate: datasource=ruby-version depName=ruby
 ARG RUBY_VERSION=3.3.6
 FROM ruby:$RUBY_VERSION-slim as base
 
@@ -29,7 +30,9 @@ RUN apt-get update -qq && \
 FROM prebuild as node
 
 # Install JavaScript dependencies
+# renovate: datasource=node-version depName=node
 ARG NODE_VERSION=22.9.0
+# renovate: datasource=npm depName=yarn versioning=npm
 ARG YARN_VERSION=1.22.21
 ENV PATH=/usr/local/node/bin:$PATH
 RUN curl -sL https://github.com/nodenv/node-build/archive/master.tar.gz | tar xz -C /tmp/ && \

renovate.json

@@ -2,7 +2,8 @@
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
   "extends": [
     "config:recommended",
-    "group:allNonMajor"
+    "group:allNonMajor",
+    "regexManagers:dockerfileVersions"
   ],
   "enabledManagers": ["asdf", "bundler", "circleci", "docker-compose", "dockerfile", "nodenv", "npm"],
   "packageRules": [