renovate.json

{
  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
  "extends": ["config:recommended"],
  "automerge": true,
  "rangeStrategy": "bump",
  "dependencyDashboard": true,
  "pinDigests": true,
  "branchPrefix": "deps/",
  "packageRules": [
    {
      "matchDatasources": ["docker"],
      "matchPackageNames": ["php"],
      "allowedVersions": "8.4.x"
    },
    {
      "matchPackageNames": ["*"],
      "groupName": "all dependencies",
      "groupSlug": "all"
    }
  ],
  "customManagers": [
    {
      "customType": "regex",
      "managerFilePatterns": [
        "/(^|/)Dockerfile$/",
        "/(^|/)Dockerfile\\.[^/]*$/"
      ],
      "matchStrings": [
        "#\\s*renovate:\\s*datasource=(?<datasource>\\S+)\\s+depName=(?<depName>\\S+)(?:\\s+versioning=(?<versioning>\\S+))?(?:\\s+extractVersion=(?<extractVersion>\\S+))?\\s*\\n(?:.*\\n)*?.*?(?:ENV|ARG|RUN)\\s+.*?version=(?<currentValue>[^\\s&]+)"
      ]
    }
  ]
}