renovate.json

{
  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
  "extends": [
    "config:recommended"
  ],
  "platformAutomerge": true,
  "labels": ["dependencies"],
  "customManagers": [
    {
      "customType": "regex",
      "description": "Update _VERSION variables in Dockerfiles",
      "fileMatch": ["(^|/|\\.)Dockerfile$", "(^|/)Dockerfile\\.[^/]*$"],
      "matchStrings": [
        "# renovate: datasource=(?<datasource>[a-z-]+?)(?: depName=(?<depName>.+?))? packageName=(?<packageName>.+?)(?: versioning=(?<versioning>[a-z-]+?))?\\s(?:ENV|ARG) .+?_VERSION=(?<currentValue>.+?)\\s"
      ]
    }
  ],
  "lockFileMaintenance": {
    "enabled": true,
    "automerge": true
  },
  "packageRules": [
    {
      "matchUpdateTypes": ["minor"],
      "matchCurrentVersion": "!/^0/",
      "automerge": true
    },
    {
      "matchUpdateTypes": ["patch"],
      "matchCurrentVersion": "!/^0.0/",
      "automerge": true
    }
  ]
}