Add `customManagers:dockerfileVersions` to renovate.json5 (#30607)

.github/renovate.json5

@@ -2,6 +2,7 @@
   $schema: 'https://docs.renovatebot.com/renovate-schema.json',
   extends: [
     'config:recommended',
+    'customManagers:dockerfileVersions',
     ':labels(dependencies)',
     ':prConcurrentLimitNone', // Remove limit for open PRs at any time.
     ':prHourlyLimit2', // Rate limit PR creation to a maximum of two per hour.

Dockerfile

@@ -11,8 +11,10 @@ ARG TARGETPLATFORM=${TARGETPLATFORM}
 ARG BUILDPLATFORM=${BUILDPLATFORM}
 
 # Ruby image to use for base image, change with [--build-arg RUBY_VERSION="3.3.x"]
+# renovate: datasource=docker depName=docker.io/ruby
 ARG RUBY_VERSION="3.3.2"
 # # Node version to use in base image, change with [--build-arg NODE_MAJOR_VERSION="20"]
+# renovate: datasource=node-version depName=node
 ARG NODE_MAJOR_VERSION="20"
 # Debian image to use for base image, change with [--build-arg DEBIAN_VERSION="bookworm"]
 ARG DEBIAN_VERSION="bookworm"

streaming/Dockerfile

@@ -8,6 +8,7 @@ ARG TARGETPLATFORM=${TARGETPLATFORM}
 ARG BUILDPLATFORM=${BUILDPLATFORM}
 
 # Node version to use in base image, change with [--build-arg NODE_MAJOR_VERSION="20"]
+# renovate: datasource=node-version depName=node
 ARG NODE_MAJOR_VERSION="20"
 # Debian image to use for base image, change with [--build-arg DEBIAN_VERSION="bookworm"]
 ARG DEBIAN_VERSION="bookworm"