{
  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
  "extends": [
    "config:recommended"
  ],
  "customManagers": [
    {
      "customType": "regex",
      "managerFilePatterns": ["/^Dockerfile$/", "/Dockerfile.*/"],
      "matchStrings": [
        "# renovate: datasource=(?<datasource>.*?) depName=(?<depName>.*?)\\s+ARG .*?_VERSION=(?<currentValue>.*)\\s"
      ],
      "datasourceTemplate": "{{{datasource}}}"
    }
  ]
}